0
1
mirror of https://git.sb/baoshuo/OI-codes.git synced 2025-01-27 19:00:15 +00:00

201376 lines
787 KiB (Stored with Git LFS)
Plaintext

2 201373
ku
1 1
1 1
1 2
2 1
2 2
2 2
2 2
2 2
1 1
2 2
1 2
2 1
1 2
1 2
2 2
1 1
2 1
1 2
1 2
1 2
2 1
1 1
1 2
2 2
1 2
1 2
1 1
1 2
2 2
1 1
2 1
1 1
2 1
1 1
1 2
1 2
1 2
1 1
2 2
2 2
1 2
1 2
1 2
1 1
1 2
1 1
2 1
2 1
2 1
2 1
2 2
2 1
2 1
1 2
1 1
2 1
2 1
1 2
2 2
1 2
1 2
1 1
2 1
1 2
1 1
1 1
1 2
2 1
1 2
1 1
2 1
2 2
1 1
1 2
2 2
1 1
1 2
1 1
1 2
1 1
2 2
1 2
1 2
1 1
1 2
2 1
2 2
2 2
1 1
2 2
1 1
2 2
1 2
2 1
1 2
1 2
1 1
1 2
2 1
1 2
2 1
1 1
2 1
2 1
2 2
1 1
1 2
2 2
2 1
1 1
1 2
1 2
1 1
2 2
1 2
1 1
1 2
2 1
1 2
2 1
2 1
2 1
2 2
2 1
2 1
2 1
1 2
2 2
1 2
2 1
1 2
1 2
1 1
1 2
2 1
1 1
2 2
1 1
2 2
2 2
1 1
2 1
1 2
2 1
2 2
1 1
2 1
1 1
1 1
2 1
1 2
1 1
2 2
2 1
1 1
2 1
1 2
2 1
2 2
1 1
2 1
1 2
2 2
1 2
2 1
2 1
2 2
2 1
1 1
1 2
2 1
1 1
1 2
2 1
1 2
1 2
2 2
1 1
1 2
2 1
1 1
2 1
1 2
1 1
1 2
2 1
1 2
1 1
2 1
1 1
1 2
1 2
2 1
2 2
1 1
2 1
2 1
2 1
1 2
1 2
2 2
1 1
1 1
2 1
2 1
1 1
1 2
1 2
2 2
2 1
1 2
1 1
2 1
1 2
1 1
2 2
2 2
1 2
1 2
1 2
2 1
2 2
1 2
1 2
1 1
1 2
1 1
1 2
1 1
1 2
2 1
1 1
2 2
1 1
1 2
1 2
1 1
1 1
2 1
1 1
2 1
1 2
1 1
1 2
1 1
2 2
2 2
1 2
1 1
1 2
1 1
2 1
1 1
2 2
1 2
1 1
2 2
1 1
2 1
2 1
1 1
2 1
2 2
2 2
2 1
1 1
2 2
2 2
2 1
1 1
2 1
1 1
2 1
2 1
1 1
2 2
1 2
1 2
2 1
2 1
1 2
1 2
2 1
1 1
2 2
1 2
2 1
1 2
1 1
2 2
1 1
1 1
1 1
1 2
2 2
1 1
2 2
2 1
1 1
2 2
2 2
1 2
1 2
2 2
1 2
1 2
1 1
2 2
1 2
1 2
2 1
1 1
1 2
2 2
2 1
2 2
1 1
1 2
2 1
2 1
2 1
1 1
1 2
2 1
2 2
1 1
1 2
2 1
2 1
1 1
2 1
1 2
2 1
2 2
2 2
1 2
1 2
2 2
2 1
2 1
2 1
1 2
1 2
2 1
2 2
2 1
2 1
1 1
1 2
2 1
2 2
1 1
1 2
1 2
2 1
2 2
2 2
1 2
2 1
1 2
1 1
1 1
1 1
1 1
1 2
1 2
1 2
2 1
2 2
1 1
2 1
2 2
1 2
1 2
2 1
1 1
1 2
1 2
2 1
2 2
2 1
2 2
2 1
2 2
2 2
2 1
1 2
2 2
2 1
1 1
2 1
1 2
2 2
2 1
1 2
1 1
2 1
1 1
1 1
2 2
1 2
1 1
2 1
1 2
2 2
1 2
2 2
1 2
2 2
2 2
1 2
2 2
2 1
2 1
1 2
1 1
2 1
1 2
1 2
2 1
1 2
1 2
1 1
1 1
2 2
1 1
2 1
2 1
2 2
1 1
1 2
2 1
2 2
1 2
2 2
2 2
2 1
1 1
1 2
2 1
2 1
2 2
1 2
2 2
2 2
2 1
2 2
1 1
1 2
1 1
1 2
2 1
1 1
2 2
2 1
2 2
2 1
2 2
2 2
2 1
1 1
2 1
2 2
2 1
2 2
2 1
1 1
1 1
1 1
2 1
2 2
1 2
2 1
1 2
1 1
1 2
1 2
1 2
1 2
2 1
2 2
2 2
2 2
2 2
2 1
2 1
1 1
2 1
2 2
1 2
2 2
2 2
1 2
2 1
1 2
1 1
2 2
1 2
1 2
1 1
1 1
2 2
2 2
2 2
2 2
1 2
1 1
1 2
2 2
1 2
1 1
2 2
1 2
1 2
1 2
1 2
1 2
2 2
2 2
2 2
1 1
2 1
1 1
2 2
2 2
1 2
2 2
2 2
1 1
1 1
2 1
1 1
2 1
2 1
1 1
1 2
2 2
2 1
1 2
2 2
2 1
1 1
2 2
1 2
2 2
2 2
2 1
1 2
2 1
1 2
2 2
2 1
2 2
2 1
1 1
2 1
2 1
2 2
1 1
2 1
2 1
2 1
2 1
1 1
1 1
2 2
2 1
2 1
2 1
1 1
1 2
2 1
2 1
2 2
1 1
1 1
2 2
2 1
2 1
2 2
1 1
2 1
2 2
2 1
2 2
1 1
1 1
2 1
1 2
1 1
1 1
2 2
2 2
1 2
2 1
1 2
2 1
1 1
1 2
2 1
1 2
2 2
1 2
1 2
1 2
2 1
2 2
2 1
2 1
2 1
2 1
1 1
2 2
1 1
1 2
2 1
1 2
2 1
2 1
2 1
2 1
2 2
1 2
1 2
2 2
1 2
2 1
1 1
1 1
2 2
2 2
2 1
2 2
1 2
1 2
2 2
2 2
2 2
2 1
2 2
1 1
1 1
1 1
2 2
2 1
1 1
2 2
1 2
2 1
1 1
1 1
2 2
2 2
1 1
1 2
2 2
1 1
1 2
2 2
1 2
1 1
1 2
2 2
1 1
1 2
1 1
2 2
1 2
1 2
2 2
1 2
1 2
2 1
1 2
1 2
1 1
1 2
2 1
2 2
2 1
1 1
2 1
2 2
2 1
1 2
2 2
1 2
2 2
2 1
2 1
1 1
2 2
1 2
1 2
1 1
2 2
2 2
1 1
1 1
1 1
2 2
1 2
2 2
2 2
2 1
1 2
1 1
1 1
1 2
2 2
2 2
1 1
2 1
2 1
1 1
2 2
1 2
2 2
1 1
2 2
2 2
1 1
1 2
2 1
2 2
2 2
1 2
1 1
1 2
1 2
2 1
2 2
1 1
2 1
1 2
1 1
2 1
2 1
2 1
1 1
1 2
2 2
1 1
2 2
2 1
1 1
2 2
2 1
1 1
1 1
2 2
2 1
2 1
1 2
1 2
2 1
2 2
2 2
1 1
2 2
2 1
1 1
1 2
2 1
1 2
2 2
2 2
1 2
2 2
2 2
2 2
1 1
2 1
2 2
2 2
1 2
2 1
2 1
2 1
1 1
1 1
2 1
2 1
2 2
2 1
1 1
1 2
1 2
2 1
1 1
1 2
2 1
2 2
1 1
2 2
1 1
2 2
1 1
2 2
1 1
1 2
2 1
2 1
1 1
1 2
1 1
1 2
1 2
2 1
2 1
1 2
1 1
2 1
1 1
2 1
2 2
1 2
1 1
1 2
1 2
2 1
1 2
1 2
1 2
2 2
2 2
1 1
2 1
2 1
2 1
2 2
2 1
2 1
2 1
1 1
2 2
1 1
1 2
1 2
2 2
2 1
1 1
1 1
2 2
2 1
2 1
2 2
2 2
1 1
1 1
2 2
2 1
1 1
2 1
1 1
2 1
1 1
1 2
2 1
1 2
1 2
1 2
1 2
2 2
2 2
2 1
1 1
1 1
2 2
2 1
1 2
1 1
2 2
1 1
1 2
2 1
1 2
2 2
2 2
2 1
1 1
2 1
2 1
2 1
2 2
1 1
1 2
1 2
2 2
1 1
1 1
2 1
1 1
2 1
1 1
1 2
2 1
1 1
2 2
1 2
2 2
2 1
1 1
2 1
2 1
2 1
1 2
2 1
2 2
1 2
1 1
2 2
1 2
1 1
2 2
2 1
2 2
2 2
2 2
1 1
2 2
2 1
2 2
1 2
2 1
1 2
2 1
1 1
2 1
1 1
1 2
2 2
2 1
1 1
1 1
1 2
1 2
2 1
2 2
1 1
2 1
1 1
2 2
1 2
1 1
2 1
1 1
1 2
1 2
1 1
1 2
2 1
1 2
2 2
2 2
2 2
1 2
1 1
2 2
2 2
2 1
2 2
2 2
1 2
1 1
2 1
2 2
1 2
2 2
1 1
2 2
1 1
1 1
1 1
1 2
2 1
1 2
1 1
1 2
2 2
1 2
1 1
1 2
2 1
1 2
2 1
2 2
1 1
2 1
1 2
1 2
1 2
1 1
2 2
2 2
2 2
1 2
1 1
2 2
2 2
1 2
1 2
1 1
2 1
2 2
1 1
1 2
2 2
2 1
1 2
2 1
1 1
2 2
2 1
2 2
1 2
1 2
2 1
1 2
1 1
1 1
2 2
2 2
2 2
1 2
1 1
1 2
1 1
1 2
1 1
2 2
1 2
1 2
1 2
1 2
1 1
1 2
2 2
2 2
1 1
1 2
1 2
2 1
1 1
2 1
1 1
2 1
1 2
1 2
2 2
1 1
2 1
1 1
2 1
1 1
2 1
1 1
1 1
1 1
1 1
1 1
2 2
1 1
2 1
2 1
2 2
1 2
2 2
1 1
1 1
2 1
1 1
1 2
2 1
2 2
1 2
2 1
1 1
2 2
1 2
1 2
1 1
2 2
1 2
1 1
2 1
2 1
2 2
2 1
2 1
2 2
1 2
1 2
2 1
1 2
1 1
2 1
1 2
1 2
1 2
2 1
1 1
1 2
2 2
1 1
2 1
1 1
1 2
1 1
2 1
1 1
2 2
1 2
2 1
2 2
2 1
1 2
1 1
2 1
2 1
2 1
1 2
2 2
1 2
1 2
1 1
2 1
2 2
2 2
2 1
2 2
1 1
2 1
1 1
2 1
2 2
2 2
1 2
1 1
2 1
1 1
1 2
2 1
2 1
1 1
2 2
2 1
2 1
1 2
1 2
1 1
2 2
1 1
2 1
2 1
1 2
2 2
1 1
2 1
1 1
1 1
1 1
2 1
2 1
2 2
1 2
2 2
2 1
2 2
2 2
1 2
2 2
2 1
2 1
1 1
2 1
2 2
1 2
1 2
1 2
2 2
2 1
2 1
1 1
1 1
1 1
2 1
2 2
2 2
1 2
1 2
2 2
2 1
2 2
2 1
2 1
1 2
1 2
1 1
1 1
2 2
1 2
2 2
2 1
1 1
2 2
2 1
1 2
2 1
2 2
2 2
1 1
2 2
1 1
1 1
1 2
1 1
2 2
1 2
2 1
1 2
2 2
1 1
1 1
1 1
1 2
1 2
1 1
2 1
1 1
2 2
1 1
1 2
2 2
1 1
2 2
2 1
1 2
2 1
2 2
2 1
2 2
1 2
2 2
2 2
2 1
1 2
1 1
1 1
1 1
1 2
1 2
2 2
1 2
1 1
1 2
2 2
1 1
1 1
2 1
1 2
2 1
2 1
2 2
1 2
2 2
1 2
1 1
1 1
1 1
2 1
2 2
1 2
2 1
2 1
1 1
1 2
2 2
2 2
1 1
1 1
2 2
1 2
1 2
1 1
1 1
1 2
1 2
2 1
2 2
2 1
1 2
2 2
1 2
2 1
1 1
1 2
2 2
2 1
1 2
1 1
1 2
2 2
1 2
2 1
1 2
2 2
1 1
1 2
1 1
1 1
1 1
2 2
1 2
2 1
1 2
1 2
1 2
2 2
2 2
2 1
2 1
2 1
1 1
1 1
2 1
1 2
1 2
1 2
1 1
2 1
1 2
1 2
1 2
1 1
2 2
1 1
1 2
1 2
2 1
1 2
2 1
2 2
1 1
1 1
2 1
1 1
2 1
1 1
2 2
2 1
1 2
2 1
2 2
1 2
1 1
2 1
2 2
1 1
1 1
2 2
2 2
1 1
1 1
2 2
1 2
2 1
1 2
2 2
2 1
1 2
1 2
1 2
1 1
1 1
1 2
2 2
1 2
2 2
1 1
1 1
1 2
2 2
1 2
1 1
1 2
2 2
1 2
1 1
1 2
1 2
2 1
1 2
1 2
2 1
1 2
2 1
2 2
1 2
2 2
1 2
2 2
1 1
2 1
1 1
1 1
2 2
1 2
2 2
2 2
1 2
1 2
2 1
2 2
1 1
2 2
1 2
1 2
1 2
1 2
1 2
2 2
1 1
1 2
2 1
1 2
1 1
2 2
1 2
1 1
1 1
2 1
2 1
2 1
1 2
2 2
1 2
2 1
2 1
1 2
1 2
1 2
1 1
2 2
2 1
2 2
1 1
2 2
2 2
1 1
2 1
1 1
2 1
2 1
2 2
2 1
2 2
1 1
1 1
2 1
1 1
2 1
2 2
2 2
2 2
2 2
1 2
1 1
2 2
2 1
1 1
1 1
2 1
2 1
1 1
1 1
1 2
2 2
1 1
2 2
2 2
1 2
2 2
1 1
1 1
1 1
2 1
2 1
2 2
1 1
1 2
1 2
2 2
2 1
1 1
1 2
1 2
1 1
1 2
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 2
2 1
2 1
1 2
1 1
1 2
1 1
2 1
2 1
2 2
2 1
2 2
2 2
1 1
2 2
2 1
1 2
1 1
2 2
1 1
2 1
2 1
2 2
2 1
2 2
2 1
1 1
2 2
1 2
2 1
2 1
2 2
2 1
1 1
2 2
1 2
2 2
1 1
1 1
2 2
1 2
1 1
1 2
2 1
2 1
2 1
1 2
1 1
2 2
1 2
2 1
1 2
1 2
2 2
2 2
1 1
1 1
1 2
1 2
1 1
1 1
2 1
2 1
1 2
1 1
1 1
2 1
2 2
1 1
1 1
1 2
2 2
1 1
2 2
2 2
1 1
2 2
2 2
2 2
1 1
2 1
2 2
1 2
2 1
1 2
1 2
2 2
1 2
1 1
1 2
1 1
1 1
2 2
2 2
1 2
1 2
1 1
2 2
1 1
2 1
2 1
1 2
1 2
1 1
2 2
2 2
2 1
2 2
1 1
1 2
1 2
2 2
2 2
1 2
2 1
1 2
2 1
1 1
2 2
2 2
1 2
1 2
1 2
2 1
1 1
1 2
1 2
1 2
2 1
1 2
1 1
2 1
1 2
2 1
2 2
1 2
2 1
2 1
2 1
1 1
2 1
2 2
1 1
1 1
2 1
2 1
1 2
2 1
1 2
1 1
2 1
1 2
2 1
1 2
2 2
2 2
2 1
2 1
2 1
2 2
1 2
1 1
1 2
2 1
2 2
1 2
2 2
1 2
2 1
2 2
1 2
1 1
2 1
2 1
1 1
1 1
1 2
1 2
1 1
2 1
1 2
2 2
1 2
2 2
1 2
1 1
1 2
1 2
1 1
1 2
1 1
2 2
1 2
2 2
2 1
2 2
2 2
1 1
1 2
1 2
2 1
1 1
1 2
1 1
2 2
2 1
1 2
2 1
2 1
2 2
1 2
1 1
1 1
2 1
1 2
2 1
2 2
1 1
2 2
1 2
1 1
1 1
1 1
2 2
1 1
2 1
1 2
1 2
1 1
1 2
2 1
1 1
2 1
2 1
2 1
2 2
2 2
2 1
1 1
1 1
2 2
1 2
1 2
2 1
1 1
1 1
1 2
2 1
1 1
2 1
2 2
2 1
2 2
1 1
1 2
1 2
1 2
1 2
1 1
2 1
2 2
2 2
1 1
1 1
1 1
2 2
2 1
2 1
2 1
1 1
2 2
1 1
1 2
2 1
1 1
1 1
2 2
2 2
2 1
2 2
2 2
1 1
1 2
1 1
1 1
2 1
1 2
2 2
1 1
2 1
1 1
2 1
1 1
1 1
2 2
1 2
2 2
2 1
1 2
2 2
1 2
2 1
2 2
2 2
2 1
2 1
2 1
1 2
2 2
1 1
1 2
1 1
1 2
1 1
1 1
1 2
2 1
2 2
1 1
1 1
1 1
2 1
2 2
2 1
1 1
1 2
1 1
1 1
2 1
1 2
2 2
1 2
2 1
2 2
2 2
1 2
1 1
2 2
1 1
2 2
1 2
1 1
2 1
1 1
2 2
2 1
2 1
1 1
1 1
1 2
2 2
2 2
2 1
1 1
2 1
2 1
1 1
2 2
1 1
2 2
2 1
1 1
2 1
1 2
1 1
2 1
1 1
1 1
1 2
1 2
2 1
1 2
2 2
2 2
1 2
1 2
1 1
2 1
2 1
1 1
2 2
1 2
2 2
2 2
2 2
1 1
1 1
2 1
1 1
1 1
1 2
2 2
2 1
1 1
1 1
2 1
2 2
1 1
2 1
1 2
2 2
1 2
2 1
1 2
1 1
1 1
1 2
2 1
2 1
1 1
2 2
1 2
2 2
2 1
2 2
1 2
1 1
1 1
1 1
2 2
1 2
2 1
2 2
1 2
2 1
2 1
1 1
1 2
1 1
1 2
1 2
1 2
2 1
1 1
1 2
2 1
1 2
2 1
2 2
2 2
1 2
1 1
1 1
1 2
2 1
2 1
2 2
1 2
1 1
1 2
1 2
1 1
1 1
1 2
1 1
1 1
2 1
2 1
2 2
2 2
1 2
1 1
2 1
1 1
1 2
1 2
2 1
2 1
2 2
1 1
1 1
1 2
1 1
1 2
1 2
2 1
1 2
1 2
2 1
1 1
1 1
2 2
2 2
2 1
2 2
1 2
2 1
2 1
1 1
1 1
2 2
2 1
2 1
2 2
2 2
2 2
1 1
1 1
2 2
1 2
1 1
1 1
2 1
2 2
1 1
1 1
1 1
2 1
1 2
2 2
2 1
2 1
2 2
2 1
2 1
2 1
2 2
2 2
1 1
1 1
1 1
2 2
1 1
1 1
1 1
2 2
2 1
1 1
2 2
1 1
2 1
2 2
2 2
2 2
1 2
1 1
2 2
2 1
2 1
2 1
2 1
2 1
2 1
1 2
1 1
2 1
1 1
1 2
2 1
2 2
1 1
1 2
2 1
2 2
1 1
2 2
1 1
2 2
2 2
2 2
1 2
2 1
1 2
2 2
1 2
2 1
2 1
2 2
1 2
2 2
1 1
1 1
1 1
1 2
1 2
2 2
2 1
2 2
2 2
2 1
1 1
2 2
2 1
1 2
2 2
2 2
1 2
2 1
2 1
1 1
2 2
2 2
1 1
1 1
1 1
1 1
2 2
2 1
1 1
1 1
1 1
2 2
2 1
2 1
2 2
1 2
1 1
1 1
2 1
1 2
2 1
2 1
2 2
1 1
1 1
1 1
1 1
1 2
2 2
2 1
1 1
1 1
1 2
2 2
2 1
1 1
1 1
1 1
1 2
1 2
1 2
1 2
1 2
2 2
2 1
2 1
2 1
2 1
2 1
2 2
2 2
2 1
2 1
2 1
2 1
1 2
2 2
2 1
2 1
1 2
2 1
1 1
2 2
1 2
1 2
2 1
2 2
1 2
2 1
2 2
1 2
2 2
2 1
1 1
1 2
2 2
1 1
1 2
1 1
1 2
1 2
1 1
1 2
1 2
1 1
2 2
1 2
2 2
2 2
1 1
2 2
2 1
2 1
2 1
2 1
1 2
1 2
1 1
2 1
2 1
1 1
1 2
1 2
1 1
2 1
1 2
1 2
2 2
2 1
1 2
2 1
2 1
2 1
2 1
2 2
2 2
2 1
1 2
1 2
1 1
1 2
2 2
1 2
2 1
2 1
1 1
1 1
2 1
2 2
2 2
2 1
1 1
1 1
1 2
2 1
1 1
2 1
2 1
2 1
1 2
2 1
1 1
2 1
1 1
1 1
2 2
2 2
1 1
1 2
1 1
1 1
2 2
2 1
1 1
2 1
2 2
1 2
1 1
2 1
2 2
2 2
2 2
2 2
1 2
2 2
1 2
2 1
2 1
1 1
2 2
2 1
2 1
1 2
2 1
2 1
1 2
2 2
1 1
1 2
2 2
2 2
2 1
1 2
1 1
1 1
2 2
2 2
2 2
2 2
1 2
2 2
2 1
2 1
2 1
2 1
1 1
2 1
2 2
1 1
1 2
2 2
2 1
1 1
2 2
1 1
1 1
2 1
1 2
2 2
2 2
2 2
1 1
1 1
1 2
1 1
2 1
1 2
2 1
2 1
2 1
2 2
1 2
2 2
1 2
1 1
2 2
2 2
2 2
2 2
2 1
2 2
2 1
2 2
2 2
1 2
2 2
1 2
2 2
1 1
2 1
2 2
1 1
2 2
2 2
1 2
1 2
1 1
2 2
2 1
1 1
1 1
2 1
2 2
2 2
2 2
2 2
1 1
1 1
2 2
2 2
2 1
1 2
1 2
2 2
2 2
2 2
1 2
1 2
2 1
2 2
1 2
2 1
2 2
2 2
2 1
2 2
2 1
2 2
2 1
2 1
1 1
2 2
1 2
1 2
1 2
2 2
1 2
1 1
1 2
1 2
2 1
2 2
2 2
2 1
1 2
2 2
2 2
1 2
1 2
1 1
1 2
1 1
2 2
2 1
1 2
2 2
1 2
2 2
1 2
2 2
1 2
2 2
2 2
1 2
1 1
1 1
1 1
1 2
1 1
1 2
1 2
1 2
2 1
1 1
1 1
2 2
2 1
1 1
2 1
1 1
1 1
2 1
1 1
1 1
2 2
1 2
2 1
2 1
1 1
1 1
1 1
1 2
1 2
2 1
2 1
1 1
2 2
1 1
1 2
1 1
1 1
2 2
2 1
1 2
2 2
1 2
2 1
1 2
2 1
2 2
2 1
1 2
2 2
1 1
1 2
2 1
1 1
2 2
1 1
2 2
2 2
2 1
2 1
1 2
2 1
1 1
2 2
1 1
2 2
2 1
2 1
1 2
2 2
1 2
2 1
1 2
2 1
2 2
2 1
1 2
2 1
1 1
2 1
1 2
1 1
2 1
1 2
2 2
1 2
2 1
1 1
1 2
2 2
1 1
1 2
2 1
2 2
2 2
1 2
1 1
2 1
2 2
2 1
1 2
2 2
2 1
1 2
1 1
1 1
1 1
1 1
2 1
2 1
2 1
2 2
2 1
1 1
2 1
1 1
2 1
2 2
1 1
1 2
2 1
2 2
1 1
2 1
2 1
2 1
1 1
2 1
2 2
2 2
1 2
2 1
2 1
2 1
2 1
1 1
1 1
1 1
2 1
1 2
1 1
2 1
1 2
2 2
2 1
1 1
1 2
1 2
1 1
2 1
2 2
2 1
2 1
1 2
1 2
2 1
2 2
1 1
2 1
1 2
2 1
1 2
1 2
1 2
2 1
2 2
2 1
2 2
2 2
2 1
2 2
1 1
2 2
2 2
1 2
1 2
2 2
1 2
1 2
2 2
1 2
1 2
1 1
1 2
1 1
1 1
2 1
2 2
2 1
1 2
1 1
2 1
1 1
1 1
2 1
2 2
2 2
1 1
2 2
1 1
1 1
1 2
2 2
2 1
1 2
2 1
2 1
1 1
1 1
2 2
2 1
1 1
2 2
2 2
1 1
1 2
1 2
2 1
1 2
2 2
1 1
2 1
1 2
1 2
1 2
1 2
2 2
2 2
2 1
2 1
2 2
1 2
2 1
1 1
1 2
2 2
1 1
2 2
1 1
1 2
2 2
2 2
2 1
2 2
2 1
2 1
2 2
1 2
1 2
1 2
2 1
2 1
1 2
2 1
2 1
2 2
1 2
1 1
1 2
2 2
1 2
2 1
2 2
1 1
1 1
2 1
2 1
1 1
1 1
1 2
2 2
1 2
1 1
2 2
1 2
2 2
2 1
1 1
2 1
1 2
2 2
1 2
1 2
1 1
1 1
2 2
2 2
2 1
2 1
2 2
1 1
1 2
2 2
2 2
2 2
1 1
1 1
1 2
1 1
2 2
2 1
1 1
2 1
1 2
1 1
2 2
1 2
1 2
2 1
2 2
2 2
1 1
2 2
2 2
1 2
1 1
2 2
1 1
1 2
1 1
1 1
1 2
1 2
1 2
1 2
1 1
1 2
1 2
1 1
2 2
2 1
1 1
1 1
2 1
1 1
1 1
2 1
2 2
2 1
1 2
2 2
1 2
1 1
1 1
2 1
1 2
1 1
1 2
2 2
1 2
2 1
2 1
1 2
1 1
1 1
1 1
2 2
1 1
1 2
2 1
2 2
1 1
1 2
1 2
2 1
2 2
1 1
2 2
1 1
2 2
2 1
2 1
2 2
2 2
2 1
1 1
1 1
2 2
2 2
1 1
2 1
2 2
2 1
1 2
1 2
2 1
1 2
1 2
1 1
2 1
2 1
1 2
1 1
1 2
1 1
2 1
2 1
1 1
1 1
2 2
1 1
1 1
1 2
1 1
1 1
1 1
1 1
1 2
1 1
2 2
1 1
2 1
1 1
2 2
1 2
2 1
1 2
2 1
1 1
2 1
2 2
2 1
1 1
2 2
1 2
2 1
1 1
2 2
1 2
1 1
2 2
1 2
2 2
1 1
1 1
2 1
1 2
2 2
2 2
1 2
2 1
1 1
1 1
1 1
2 2
2 1
2 1
1 1
2 2
1 1
1 2
2 1
1 1
1 2
1 2
2 2
1 1
1 1
2 1
2 1
2 2
1 1
2 2
2 1
1 2
1 1
1 2
2 2
2 1
2 2
1 1
1 2
2 1
1 2
1 2
1 1
2 2
1 1
1 2
2 1
1 2
2 1
1 1
1 1
1 1
2 2
1 1
1 1
2 1
2 1
2 2
2 1
1 2
2 2
1 2
2 1
2 2
2 1
2 1
1 1
1 1
1 2
1 2
1 2
2 2
2 2
2 2
1 2
1 2
2 2
2 2
2 1
2 2
1 1
2 1
2 2
1 1
2 1
2 2
2 2
2 2
1 2
1 1
1 2
1 2
1 2
2 2
2 1
1 1
1 1
2 1
1 2
1 2
1 2
2 2
2 1
2 1
2 2
2 1
1 1
1 1
1 1
1 1
2 1
1 1
2 2
1 1
2 2
2 1
1 2
2 1
2 1
1 2
1 2
1 2
2 1
1 1
2 1
2 1
1 2
2 2
2 2
1 2
1 1
2 1
1 2
2 1
1 1
2 2
1 2
1 2
2 2
1 1
1 2
2 1
1 1
1 1
2 1
1 2
1 1
1 2
2 2
1 1
1 1
1 2
1 1
1 1
2 1
1 1
1 2
1 1
2 2
1 2
1 1
2 2
2 2
2 2
2 1
2 2
2 1
1 1
2 1
1 2
1 1
2 1
2 2
2 2
2 2
2 1
2 2
2 2
1 2
2 2
2 2
1 2
2 1
1 1
2 2
1 1
2 1
1 2
2 1
2 2
2 1
2 1
1 2
2 2
1 1
2 2
1 1
2 2
1 2
1 2
2 2
1 1
1 1
2 2
2 2
1 1
1 1
2 2
2 2
2 1
1 1
2 2
2 2
1 2
1 2
1 2
1 2
2 1
1 1
1 2
2 2
1 2
1 2
2 2
1 1
2 1
1 2
1 2
2 1
1 2
1 1
1 2
1 2
1 2
1 1
2 1
1 1
1 2
2 2
2 2
1 2
1 2
1 1
2 2
1 2
2 1
1 1
1 2
2 1
1 2
2 1
1 1
1 1
1 1
2 2
1 2
1 1
1 2
2 2
1 2
1 2
2 2
1 1
1 1
2 1
1 1
2 2
1 1
2 2
2 1
2 1
1 1
1 2
1 1
1 1
2 2
1 2
2 2
2 1
2 2
2 1
2 1
2 1
2 2
1 2
2 1
2 2
1 2
2 2
1 1
2 1
2 2
1 2
2 1
2 2
1 1
1 1
2 2
2 2
2 2
2 1
1 2
2 1
1 1
1 1
1 1
1 2
1 1
1 1
1 2
2 2
1 1
1 1
1 2
2 1
2 2
2 1
2 1
1 1
1 1
2 1
1 1
2 2
2 2
1 1
1 1
2 2
1 2
1 1
1 2
2 1
1 2
1 1
2 1
2 2
2 2
1 1
1 2
1 2
2 1
2 2
2 1
1 2
1 2
2 1
2 2
2 2
2 1
2 2
2 1
1 2
2 2
2 2
1 1
1 1
1 1
1 1
2 1
2 1
2 2
1 1
1 2
2 1
2 1
2 1
1 1
1 2
2 2
1 1
1 1
1 1
1 1
1 1
1 1
2 2
2 1
2 2
2 2
2 2
2 1
1 2
1 1
2 1
2 2
2 2
2 1
1 2
2 2
2 1
1 2
1 1
2 1
2 2
1 2
2 1
1 2
1 2
2 2
1 2
1 1
1 2
1 2
1 1
2 2
2 2
2 1
2 2
2 2
2 1
1 1
2 1
1 2
1 1
2 2
1 2
2 1
2 1
2 1
1 1
1 2
2 2
2 2
1 2
2 2
1 1
2 1
1 2
1 2
2 2
1 2
2 2
2 2
2 1
2 2
1 1
1 1
1 1
2 1
1 2
2 1
2 2
1 2
2 2
1 2
2 1
2 2
1 1
2 2
1 2
2 1
1 1
1 2
1 2
2 2
2 1
2 1
2 2
2 2
2 2
1 1
2 2
1 2
1 2
1 2
2 2
2 1
2 2
1 2
2 1
2 2
1 1
1 2
2 2
1 2
1 2
2 1
1 2
2 2
2 1
2 1
1 1
2 2
2 1
2 1
2 1
2 1
2 2
2 2
1 2
2 1
2 2
1 2
2 1
2 1
2 2
2 1
2 2
1 1
1 2
1 2
1 2
2 1
2 1
2 2
2 2
1 1
1 1
2 2
2 2
1 1
2 2
1 1
1 2
1 1
1 2
1 2
1 2
2 1
2 2
1 2
1 1
1 2
2 1
1 1
2 1
2 1
2 1
1 2
2 1
1 2
2 1
2 2
1 2
2 1
1 1
1 1
1 1
2 2
2 1
1 1
1 2
1 2
1 1
1 1
2 2
2 1
1 2
1 1
2 2
2 1
1 2
1 2
2 2
1 2
1 1
2 1
2 2
1 2
1 1
2 2
2 2
2 1
1 2
1 1
2 2
1 1
2 1
1 2
2 2
2 2
2 2
2 2
1 2
1 1
2 2
1 2
1 2
2 2
2 2
2 2
2 2
2 2
2 1
2 1
1 2
2 1
2 1
2 2
2 1
1 2
2 2
2 2
1 1
2 2
1 1
1 1
2 2
1 2
2 2
1 2
1 2
1 1
2 1
1 2
1 1
1 1
2 2
1 2
2 2
2 2
1 1
2 2
2 2
1 2
2 1
2 2
2 2
1 2
1 1
1 2
2 1
1 2
1 2
2 2
1 2
1 1
1 1
1 1
1 1
1 2
2 1
2 1
2 1
2 2
1 2
2 2
2 2
1 1
2 1
2 1
2 1
2 2
2 1
2 1
2 2
2 2
2 2
1 2
1 1
2 1
1 1
1 1
2 2
2 2
1 2
1 2
2 2
2 1
2 1
2 2
1 1
1 1
1 2
2 2
2 1
2 2
1 1
2 2
2 2
2 2
2 2
1 2
2 1
2 1
1 2
2 2
2 1
1 1
1 1
2 1
1 1
2 2
1 1
1 2
1 1
1 1
1 2
1 1
2 2
2 2
1 1
1 2
2 1
1 2
2 1
1 2
1 1
2 1
2 2
2 1
1 2
2 2
2 1
1 2
2 1
1 1
2 1
2 2
1 2
1 2
1 1
2 1
1 2
2 1
1 1
1 2
2 1
1 1
1 2
2 1
1 2
1 1
2 2
2 1
1 1
2 1
2 1
2 2
2 1
2 1
2 1
2 1
2 2
2 2
1 2
1 1
1 2
2 1
1 2
1 1
1 1
1 2
2 2
2 1
1 1
1 1
1 2
2 2
1 1
1 1
2 1
2 2
1 2
2 1
2 2
1 1
2 1
2 1
1 1
2 1
1 2
1 1
2 1
2 1
2 1
1 1
1 1
1 2
1 2
2 2
1 1
2 1
2 1
2 1
1 1
2 2
2 2
1 1
2 1
1 2
2 1
2 1
1 1
1 2
1 1
1 2
1 1
2 2
2 2
2 1
2 2
2 2
1 2
2 1
1 1
2 1
1 2
2 2
2 1
2 1
1 1
1 2
1 1
1 2
2 1
2 2
2 1
2 1
1 2
2 2
1 1
2 1
1 2
2 2
2 1
1 1
1 1
1 2
1 2
1 1
1 2
2 1
2 1
2 2
1 1
2 1
1 2
1 1
1 1
2 2
1 2
1 2
2 1
2 1
1 1
2 1
2 2
1 2
2 2
1 2
2 2
1 1
2 2
1 1
1 2
2 2
2 2
1 1
2 2
1 1
2 1
1 1
1 2
1 2
2 1
1 1
1 2
1 2
1 1
1 2
2 2
1 1
2 2
1 2
1 1
2 1
2 1
2 2
2 1
2 2
1 2
1 1
1 1
1 1
2 2
1 2
1 1
1 1
2 1
1 2
1 1
1 1
2 1
2 1
1 1
1 1
1 2
1 2
1 1
1 2
2 1
2 2
2 1
2 2
2 2
1 1
2 1
2 1
2 2
2 2
1 2
1 2
2 2
2 1
2 1
1 2
2 1
2 2
1 1
2 1
2 2
2 1
2 1
1 1
1 1
1 2
2 1
1 1
2 1
2 1
1 2
2 2
1 1
2 2
1 2
1 2
1 1
2 1
1 2
2 1
1 1
1 1
2 2
1 1
2 2
1 1
1 2
2 2
1 2
2 1
1 2
2 1
1 1
1 1
1 2
1 2
2 2
2 2
2 2
1 1
2 2
2 1
1 2
1 1
1 2
2 1
2 1
2 1
2 2
1 2
1 1
2 1
2 2
1 2
2 2
1 2
1 1
2 1
2 1
2 1
1 2
1 1
1 2
1 2
1 2
1 1
1 2
1 2
2 2
2 1
2 2
2 2
1 2
2 1
1 2
2 1
1 1
2 1
2 2
2 1
2 2
2 2
2 1
2 2
2 1
1 1
2 2
2 1
1 2
1 2
1 1
2 1
1 1
2 1
2 2
1 1
2 2
2 1
2 2
1 2
2 2
1 1
1 2
2 2
2 2
1 1
2 2
1 1
1 1
2 1
2 1
2 1
2 1
2 2
2 1
1 1
2 1
1 2
2 2
2 2
1 2
2 1
1 1
1 1
2 2
1 1
1 2
1 2
2 1
2 2
2 2
1 1
1 2
1 2
2 2
2 2
2 1
1 2
1 2
1 1
1 1
1 1
2 2
2 1
2 1
2 2
2 1
1 1
2 1
1 1
1 2
2 2
1 1
2 2
2 2
2 1
1 2
2 1
2 1
1 2
2 1
1 1
2 2
2 2
1 1
2 1
1 1
2 2
2 2
1 2
2 1
1 2
2 1
2 2
1 1
2 2
2 1
1 2
2 1
1 1
2 1
1 2
1 2
2 1
2 2
1 2
2 2
1 2
1 2
1 2
1 1
2 2
1 1
2 1
1 1
1 2
2 2
2 2
1 1
2 1
1 2
2 1
2 1
2 1
2 2
2 2
2 2
2 1
1 1
2 2
1 1
2 1
2 1
2 2
2 2
2 1
1 2
2 2
2 1
1 1
2 2
2 1
1 2
1 1
1 2
1 1
2 2
2 1
2 2
2 1
2 1
2 2
2 1
2 2
1 2
1 2
2 2
1 1
2 2
1 1
2 2
2 2
1 1
2 1
2 1
1 2
1 1
2 2
1 2
2 2
2 2
2 2
2 2
1 1
1 1
2 1
2 2
1 1
1 1
2 2
2 2
2 1
1 2
2 2
2 2
2 2
1 1
1 2
2 2
1 1
2 1
2 1
2 2
2 1
2 1
2 2
1 2
1 1
2 2
2 1
1 2
2 1
1 1
1 2
2 2
2 1
2 2
2 1
2 1
2 2
2 2
2 2
1 1
1 2
2 1
2 2
2 2
1 1
1 2
2 1
2 2
2 1
2 2
1 1
2 1
1 1
1 1
1 1
1 1
1 1
2 1
2 1
2 2
1 1
1 2
2 2
1 1
1 1
1 2
1 2
1 2
1 2
1 2
1 2
1 2
2 2
2 2
2 1
2 1
2 1
1 1
1 1
1 2
1 2
2 1
1 1
2 1
2 2
1 2
1 2
2 2
2 2
1 1
1 1
1 2
2 1
1 2
1 1
1 1
2 2
1 2
2 1
1 2
1 1
1 2
2 2
1 2
2 1
2 1
2 2
2 2
1 1
1 2
1 1
1 1
2 1
2 2
2 2
2 1
2 2
1 1
1 1
2 1
1 1
2 2
2 2
2 2
1 2
1 1
2 1
1 1
2 1
1 2
1 1
1 1
2 2
2 2
1 1
2 1
1 2
2 1
1 2
1 1
2 2
2 2
1 1
2 1
2 1
2 2
2 2
1 1
2 2
2 2
1 2
1 2
2 1
2 2
1 2
2 1
2 2
1 2
1 2
2 1
1 2
1 1
1 1
1 1
2 1
1 1
2 1
2 2
1 2
2 1
1 2
1 2
1 2
2 1
2 2
2 2
1 2
1 2
2 1
1 1
2 2
2 1
1 2
1 2
1 1
2 1
1 1
1 2
2 1
1 1
2 1
1 2
1 1
2 2
2 1
1 2
1 1
1 2
2 1
2 2
1 2
1 1
1 2
1 2
1 1
2 2
2 2
1 2
2 1
1 2
1 2
1 2
1 1
1 1
2 2
2 2
1 2
1 2
1 2
2 2
2 1
2 1
1 1
1 2
1 1
1 2
2 2
1 1
1 1
2 1
2 1
2 1
1 2
1 1
1 2
2 1
1 1
2 2
1 1
2 2
2 1
1 2
1 2
1 1
2 2
2 2
1 2
2 2
2 1
2 2
2 1
2 2
2 2
1 2
2 2
2 2
2 2
2 2
2 1
1 2
1 1
2 1
2 1
1 2
2 2
1 2
2 1
2 2
1 1
2 1
2 2
2 1
1 2
2 2
2 2
1 1
2 2
2 1
2 2
2 1
2 2
1 1
2 1
1 2
1 2
2 2
2 1
2 1
1 1
1 2
2 2
1 2
2 1
1 2
1 1
1 2
2 2
2 1
1 2
1 2
1 2
1 2
2 1
2 1
1 1
2 1
2 2
2 1
2 1
1 1
1 1
1 2
1 1
1 1
2 2
1 2
1 2
2 1
2 2
2 1
2 2
1 1
1 1
1 2
1 2
1 2
2 2
1 1
2 2
2 1
1 2
2 2
2 1
1 2
2 2
2 2
1 1
1 1
2 1
2 1
2 1
1 1
1 2
1 2
1 2
1 2
2 2
1 1
2 1
2 1
1 2
2 1
1 1
1 2
1 1
2 1
1 2
2 1
1 1
1 2
2 2
1 1
1 2
2 2
2 1
2 2
1 2
1 2
2 2
1 1
1 2
1 1
1 2
1 1
2 2
1 2
1 1
2 1
2 2
2 1
1 2
2 2
2 2
1 1
1 2
2 2
2 1
1 1
1 2
1 2
2 2
1 2
2 1
1 1
2 1
2 2
2 2
1 1
1 1
1 1
2 2
1 2
1 2
1 1
2 1
1 2
1 1
1 1
2 2
2 2
1 2
2 2
2 1
2 2
1 1
2 1
2 1
2 2
2 1
2 2
2 2
1 2
1 1
1 1
1 1
2 2
1 2
1 2
2 1
1 1
1 1
2 1
1 2
1 2
2 2
1 1
2 1
2 1
2 2
1 1
1 1
1 1
2 1
1 1
2 1
2 1
1 2
2 1
2 2
1 1
2 2
1 2
2 1
1 2
1 2
2 2
1 2
1 2
2 1
2 1
2 2
2 2
2 2
1 1
1 1
1 2
1 1
2 2
1 1
1 2
1 1
2 1
2 1
2 2
1 1
1 1
2 2
1 2
1 1
1 2
2 2
1 1
2 1
2 2
2 2
1 2
1 1
2 2
2 2
2 2
2 1
2 1
2 2
1 1
1 2
1 1
2 2
1 2
2 2
2 2
2 2
1 2
2 2
2 2
2 2
1 1
1 2
2 2
2 2
2 2
2 2
1 2
1 1
1 1
2 2
2 2
1 1
1 1
1 2
2 1
1 1
1 2
1 2
1 1
1 1
1 2
1 1
1 1
1 1
2 1
1 1
1 2
1 2
1 2
1 1
2 1
1 1
2 2
2 2
1 2
2 2
1 2
2 1
2 1
1 1
1 1
2 2
1 1
1 1
1 2
2 2
2 1
2 1
2 1
1 1
1 2
2 2
2 1
2 2
1 1
1 1
1 2
1 1
1 2
1 1
2 2
2 2
1 2
1 1
1 1
1 1
1 1
2 1
1 2
1 1
1 2
2 1
2 1
2 1
1 1
1 2
2 1
1 2
1 1
1 2
2 1
2 2
2 2
1 1
1 1
2 1
1 1
2 2
2 2
1 2
2 2
2 2
2 1
1 2
1 2
2 2
1 1
1 2
2 2
2 1
2 1
1 1
2 1
1 1
1 1
2 1
1 2
2 2
2 1
2 2
2 1
1 2
1 2
2 2
1 1
2 1
2 2
2 1
2 1
2 2
1 1
2 1
1 1
2 1
1 1
2 1
2 2
1 1
1 2
1 1
1 2
2 1
1 2
2 2
1 1
2 2
1 2
2 2
2 2
2 1
2 1
2 1
2 1
1 2
2 1
2 1
1 2
2 1
1 2
1 1
1 1
2 1
2 1
2 1
1 2
1 2
1 2
1 2
2 1
1 2
1 2
1 2
2 1
2 2
1 1
2 2
2 2
2 2
1 2
2 1
2 2
2 2
1 2
1 2
2 1
1 2
1 2
2 2
1 2
1 1
2 1
2 2
1 1
1 2
2 1
1 1
2 2
2 1
1 1
2 1
2 1
2 2
1 1
2 1
2 2
1 1
1 2
1 2
2 2
1 2
1 2
2 1
2 2
2 1
1 2
2 1
2 1
1 1
1 2
1 2
2 2
1 2
1 2
1 2
1 1
2 2
1 1
1 2
1 2
1 2
2 1
2 1
2 1
2 1
1 2
1 2
1 2
2 1
2 2
2 1
2 1
1 2
2 1
2 2
1 2
1 1
1 2
2 1
2 1
1 2
1 1
1 1
2 1
2 2
1 1
1 1
2 2
1 2
2 2
2 1
1 2
1 1
1 2
1 1
1 2
1 2
1 1
1 1
1 2
2 2
1 2
1 2
1 1
1 1
1 1
2 1
1 2
1 1
1 2
1 2
2 1
2 1
2 1
2 2
1 2
2 2
1 2
2 1
2 2
2 1
1 2
2 1
2 2
2 1
2 1
2 2
2 1
2 1
1 2
1 2
2 1
1 2
1 1
1 2
2 2
1 2
1 1
2 2
2 2
1 1
2 2
1 1
2 2
2 2
1 2
2 2
1 1
1 1
2 1
2 2
2 1
1 2
1 1
1 2
2 1
1 1
1 2
2 2
1 2
1 2
2 2
1 1
1 2
2 1
2 1
2 1
2 1
1 1
1 2
2 2
1 2
2 1
2 2
2 1
2 1
2 1
1 1
1 2
1 1
1 1
1 1
2 2
1 2
2 1
2 2
1 2
1 2
2 2
2 1
2 2
2 1
1 2
2 1
2 2
1 2
1 2
2 2
1 1
1 1
1 1
1 2
2 1
2 1
1 1
2 1
1 1
2 1
2 1
2 2
2 1
1 2
2 1
2 1
2 1
2 1
2 2
1 2
2 1
2 1
2 1
1 2
1 2
2 2
1 2
2 1
2 2
1 2
2 1
2 1
1 1
1 1
2 2
1 1
1 2
1 1
1 1
1 2
2 1
2 1
2 2
1 2
1 2
1 1
1 1
2 2
1 1
2 1
1 1
1 2
2 1
2 1
1 2
1 2
2 1
2 1
1 1
1 2
2 2
2 2
2 2
1 1
2 1
2 2
2 1
1 2
2 1
2 2
2 2
2 1
2 2
2 1
2 1
2 1
2 1
2 1
1 1
1 2
2 1
1 1
1 2
1 2
1 2
1 1
1 1
1 2
2 1
1 1
1 2
1 2
1 2
1 2
1 1
1 1
2 2
2 2
2 2
2 1
2 2
2 2
1 1
1 2
1 2
1 2
1 2
2 2
1 1
1 1
1 1
1 2
2 2
1 2
2 2
2 1
2 1
2 2
2 1
1 1
1 1
1 2
2 1
2 1
2 2
1 1
2 1
2 1
2 1
1 2
2 2
2 2
1 1
2 2
1 1
1 1
2 1
2 1
1 1
1 2
1 2
2 1
2 1
1 2
1 2
1 1
2 2
1 1
2 1
1 2
1 1
2 2
1 2
2 1
2 1
2 1
2 2
2 1
2 2
1 2
2 2
2 2
1 1
2 1
1 1
1 2
1 2
2 2
1 2
2 1
2 1
1 2
2 1
2 1
1 2
1 2
1 1
1 2
2 2
1 2
1 2
1 2
1 1
2 2
2 1
2 2
2 2
2 2
2 2
1 2
2 1
1 2
1 2
1 1
2 1
1 2
2 2
2 1
2 2
2 1
1 2
2 2
2 2
2 1
2 1
1 1
1 1
1 1
1 1
2 1
2 2
1 2
2 2
1 1
1 1
1 2
2 2
2 1
1 1
1 1
1 1
2 1
1 1
1 1
2 1
2 2
2 1
1 1
1 2
1 1
2 2
2 2
2 2
2 2
2 2
2 2
2 1
1 2
1 2
1 1
1 1
1 2
2 2
2 1
1 2
1 1
1 2
2 2
1 1
1 1
1 1
1 2
2 2
1 1
2 1
1 1
1 2
1 1
1 1
1 2
2 1
2 1
2 1
2 1
2 1
2 1
2 1
1 2
1 1
1 1
2 1
1 2
1 2
1 2
1 1
2 1
1 1
2 2
1 1
2 1
1 2
1 1
2 2
2 2
2 1
2 2
2 1
1 1
1 2
1 1
1 2
1 1
2 1
2 1
1 1
2 2
1 1
2 2
1 2
2 2
2 2
2 2
2 2
2 1
1 1
1 1
1 1
1 2
1 2
1 1
1 2
1 1
1 2
2 1
1 1
2 2
1 2
1 2
2 1
1 1
2 2
2 1
1 1
1 2
2 2
1 1
1 2
1 1
1 2
1 1
1 2
1 2
2 2
2 2
1 1
2 2
1 2
1 2
2 2
1 2
1 1
1 2
2 1
1 1
2 2
1 1
2 2
1 1
2 2
2 1
1 2
1 2
1 2
1 2
2 2
1 1
2 1
2 1
1 2
1 2
2 1
2 1
2 1
2 2
1 2
1 2
2 1
1 1
1 1
2 2
1 1
1 2
1 2
2 2
2 1
1 2
2 1
1 1
1 2
2 1
2 1
1 2
2 2
1 1
2 1
1 2
1 2
2 2
2 1
2 2
2 1
2 2
1 2
1 2
1 1
1 1
1 1
1 1
1 2
2 2
1 1
2 2
2 1
2 1
2 1
2 2
1 2
2 2
1 1
2 1
1 1
2 1
2 1
1 2
2 1
1 2
2 2
2 2
1 1
1 2
2 2
2 2
1 2
2 1
1 1
2 2
2 1
2 1
2 1
1 2
1 1
2 1
2 2
2 2
1 1
1 2
1 1
2 2
1 1
2 2
2 1
2 1
2 1
2 2
1 2
2 2
2 1
1 2
1 2
1 2
1 2
1 1
2 1
2 2
1 2
1 1
2 2
1 1
1 1
1 2
2 1
1 2
2 1
1 2
1 1
2 1
1 1
2 1
1 1
2 1
1 2
2 2
2 1
1 2
2 2
2 2
1 2
2 1
2 1
2 2
1 1
1 2
2 2
1 1
2 1
1 2
2 2
1 1
1 2
2 2
1 2
2 2
2 1
2 2
1 2
2 2
2 2
1 1
2 1
2 2
2 2
2 2
2 2
2 2
1 2
2 1
1 1
1 1
2 2
2 1
1 1
1 2
2 1
1 1
2 2
1 2
1 1
2 1
2 1
1 1
2 1
1 2
2 1
1 1
2 1
2 1
1 1
1 1
2 1
1 2
2 1
1 1
1 2
1 1
1 2
1 2
1 1
1 1
2 1
2 1
1 2
1 2
1 2
1 1
1 1
1 1
2 1
2 2
1 2
2 1
2 1
2 1
1 1
1 2
2 1
1 2
1 2
1 1
2 1
2 2
1 2
2 2
1 2
2 2
2 1
1 1
1 1
2 1
1 1
2 1
2 1
1 1
1 1
2 1
2 1
2 2
2 1
1 2
1 1
1 2
1 2
2 2
2 2
1 1
2 2
2 2
1 2
2 2
1 2
1 2
2 1
2 2
2 2
2 1
1 2
2 1
2 2
1 1
2 2
2 1
1 1
2 1
1 1
2 1
1 2
2 1
1 2
2 2
2 1
1 1
2 2
2 2
2 2
1 2
2 1
1 1
2 2
1 2
1 1
2 2
1 2
1 2
2 1
2 1
2 2
1 2
2 2
2 1
1 1
1 2
1 1
1 2
1 2
1 2
2 2
2 1
1 1
2 2
1 1
1 1
1 2
1 1
1 2
1 2
2 1
2 2
2 1
2 2
2 1
1 1
1 2
2 1
2 1
2 2
2 2
1 1
1 2
1 2
1 1
1 1
1 1
1 1
2 1
1 1
2 1
2 2
1 1
2 1
1 1
1 1
1 1
1 2
1 1
2 2
2 2
1 1
2 2
2 1
1 1
2 1
2 1
1 1
2 1
2 1
2 2
1 1
1 1
1 2
1 1
1 2
2 1
2 1
1 1
2 2
2 1
1 2
1 2
1 2
1 2
2 1
1 2
1 2
1 1
1 2
1 1
1 1
1 1
2 2
1 1
2 1
1 1
2 1
2 2
2 2
2 2
2 2
1 2
2 1
1 1
1 2
1 2
2 1
1 2
1 2
1 2
1 1
2 2
1 2
2 1
1 2
1 2
1 2
1 1
1 1
1 1
1 1
2 1
2 2
1 2
2 2
2 1
1 2
1 2
1 1
2 2
1 2
2 1
1 2
2 1
2 1
2 1
2 1
1 2
1 1
1 2
1 2
2 2
1 2
2 1
1 1
1 1
2 2
2 2
1 1
2 1
1 1
1 2
1 1
1 1
2 2
1 1
1 1
2 1
1 2
2 2
1 1
2 1
2 2
1 2
2 1
1 2
1 1
1 2
2 1
1 1
2 1
2 1
1 2
1 1
2 1
2 1
1 1
1 1
2 2
2 2
1 2
2 2
2 1
1 1
1 2
1 2
1 1
2 1
2 1
2 2
2 1
2 1
2 1
1 1
2 2
2 2
2 2
1 1
2 2
2 1
2 1
1 1
2 1
2 1
2 1
2 1
1 2
2 1
2 1
2 2
2 2
1 1
2 1
1 2
1 1
2 2
2 2
1 1
2 2
1 1
1 1
2 2
1 1
1 2
2 1
2 2
2 1
2 1
1 1
2 2
2 1
2 2
1 2
2 2
2 2
2 1
2 2
1 2
1 1
1 1
1 2
1 2
2 1
2 1
1 1
1 1
2 1
2 2
2 1
1 2
1 2
1 2
1 1
1 1
2 2
2 1
2 2
1 2
2 2
2 2
2 2
2 1
2 1
1 1
1 1
2 1
1 1
1 1
2 1
1 1
1 2
2 1
1 2
2 1
2 1
1 1
2 2
1 2
1 2
2 1
2 1
1 1
2 1
1 2
1 2
2 1
1 2
1 1
2 1
1 1
2 2
2 1
2 2
2 2
2 1
2 2
2 1
1 1
1 1
1 1
2 1
2 2
1 1
2 1
2 2
2 1
2 1
1 2
2 1
2 1
2 1
1 2
1 1
1 2
2 2
1 1
1 2
2 2
1 2
2 1
1 1
1 2
1 1
1 1
2 2
1 1
1 1
2 2
1 1
2 2
1 1
1 2
1 2
2 2
2 1
2 1
2 2
2 1
1 1
1 2
2 2
1 1
2 1
2 1
2 2
2 2
2 1
1 2
1 2
1 1
1 2
1 2
2 2
1 2
1 2
2 1
1 1
2 1
2 2
2 2
2 1
1 2
1 2
1 2
1 1
2 2
1 1
2 2
1 2
1 1
2 2
2 1
1 1
2 1
2 1
1 1
2 2
1 1
1 2
1 2
1 1
1 2
2 2
1 2
1 1
1 1
1 1
1 2
2 1
2 2
2 2
1 1
2 2
1 1
2 1
1 2
1 2
2 2
1 1
1 2
2 1
1 2
1 2
1 1
2 1
2 1
2 2
1 1
2 2
1 2
1 2
2 1
2 2
1 2
2 1
2 1
2 1
2 2
2 2
2 1
1 2
2 2
1 1
1 1
2 2
1 2
1 2
2 2
1 1
2 1
2 1
1 2
2 2
1 1
2 2
1 1
1 2
1 1
2 1
1 1
2 2
2 1
2 2
1 2
1 1
1 2
1 2
2 2
2 1
1 1
1 1
2 1
1 2
2 1
2 1
2 2
1 2
2 1
2 2
2 1
1 1
2 2
1 2
1 2
2 2
1 1
1 1
1 1
1 2
2 1
1 1
1 2
1 1
2 1
1 1
2 2
1 1
2 2
1 2
2 2
1 2
2 2
2 2
1 2
2 1
1 1
2 1
1 2
2 1
2 1
2 2
1 1
2 1
2 1
1 1
1 2
1 1
1 1
2 2
1 1
1 1
2 2
2 1
1 1
2 1
1 2
2 2
2 1
1 2
1 2
2 1
1 1
1 1
2 2
2 1
2 1
2 2
1 1
2 1
2 2
1 1
1 2
2 1
1 1
1 2
1 1
1 1
2 1
1 1
2 1
1 1
2 2
1 1
1 1
1 1
1 2
2 1
2 1
1 1
1 1
1 2
1 2
1 1
2 2
2 2
1 2
1 1
2 1
1 1
1 1
2 2
1 2
1 1
1 1
1 2
2 2
1 2
2 1
1 1
2 1
2 2
2 1
2 1
1 2
2 2
1 2
2 1
1 1
2 1
1 2
1 1
2 1
1 1
1 2
2 2
2 2
1 2
1 1
2 2
2 2
1 1
1 2
1 1
1 1
1 1
2 2
1 2
1 1
2 2
1 2
1 2
2 1
1 2
1 1
2 2
2 1
1 2
1 2
1 1
2 2
1 1
2 1
2 2
2 2
2 1
1 1
1 2
2 1
1 1
1 2
1 1
2 1
1 1
1 1
2 1
1 2
2 2
1 1
2 2
2 2
2 2
1 2
2 2
2 2
1 2
1 1
2 2
2 2
2 1
1 2
1 2
2 1
2 1
2 2
1 1
1 1
1 1
2 1
2 1
1 2
2 1
2 1
2 1
2 1
2 2
2 1
2 2
2 2
2 1
1 2
2 1
2 1
2 1
1 1
2 2
1 1
1 2
2 2
1 1
1 1
2 1
1 1
1 2
2 2
1 2
2 2
2 1
2 2
1 2
2 2
2 2
1 1
2 2
2 2
2 2
1 2
1 1
1 1
1 2
1 2
2 2
1 1
2 1
2 1
2 1
1 2
2 2
2 2
2 2
1 2
1 1
2 2
2 2
2 2
2 1
2 2
2 1
2 1
1 1
1 2
1 2
2 1
2 1
2 2
2 1
2 1
1 2
2 1
1 2
1 2
2 1
2 1
2 1
2 2
2 2
1 2
2 2
2 2
1 2
1 2
2 1
1 1
2 2
1 2
1 1
1 1
2 2
2 1
1 2
1 2
2 1
1 2
1 1
2 1
1 2
1 2
1 1
2 2
1 2
2 2
2 2
2 2
2 1
2 2
2 2
2 2
2 2
1 2
1 2
1 1
2 2
1 2
2 2
1 1
1 1
2 2
1 2
2 2
2 1
1 2
2 1
1 2
1 2
2 2
1 2
1 2
2 2
2 2
2 2
2 2
1 2
1 1
1 1
2 1
1 2
2 2
2 2
1 1
2 1
1 2
1 2
2 2
2 2
2 2
1 1
2 1
1 2
2 2
2 2
2 1
1 1
2 1
2 2
2 1
2 2
2 2
1 1
1 1
2 1
1 2
2 2
1 1
2 2
1 2
1 2
2 1
2 2
2 2
1 2
1 2
2 1
2 2
1 1
2 2
2 1
1 2
1 1
2 1
1 1
2 2
2 2
1 2
2 1
1 1
1 1
2 1
2 2
1 1
1 2
1 1
2 1
2 1
2 2
2 2
1 1
2 1
2 2
2 2
1 1
2 2
2 1
1 1
2 1
1 2
1 1
1 1
1 2
1 1
1 2
2 1
1 2
2 1
2 1
2 2
2 1
2 1
2 2
1 2
2 2
1 1
1 1
1 2
1 1
2 2
2 2
1 2
1 2
1 2
2 1
2 2
2 2
1 1
1 2
2 2
2 2
2 2
1 2
2 1
2 2
2 1
2 1
2 1
1 2
1 2
2 1
1 2
2 1
1 1
1 2
2 2
1 1
1 1
2 1
1 2
1 2
2 2
1 2
2 2
2 1
1 2
2 1
1 1
2 2
2 2
1 1
1 1
1 2
2 1
1 1
1 1
1 1
2 1
1 2
2 1
1 2
1 1
1 2
1 1
2 1
1 1
2 2
2 1
1 2
2 1
1 2
2 1
2 2
1 2
1 2
2 1
2 1
1 2
2 2
1 2
1 2
1 2
2 1
2 2
2 2
1 2
2 1
1 1
1 1
2 1
1 2
1 2
2 2
1 1
1 1
2 2
1 1
1 1
1 1
1 1
2 2
2 1
2 1
1 2
1 2
2 2
1 1
1 2
2 2
2 2
1 2
1 2
2 1
2 1
1 2
1 1
2 2
1 2
2 1
1 1
1 2
1 1
1 2
2 1
1 2
1 2
1 2
2 1
1 1
2 2
1 2
2 2
2 1
2 1
2 1
2 2
1 2
1 1
2 1
2 1
1 2
1 1
1 1
1 2
1 1
2 2
1 1
2 2
1 1
2 1
2 2
1 1
1 2
2 2
1 2
2 2
2 1
2 1
2 1
1 2
2 2
2 1
2 1
2 1
2 1
2 2
2 2
1 2
1 2
2 1
2 1
2 1
1 1
2 1
2 1
2 1
1 2
2 1
2 2
1 2
1 1
1 1
1 1
2 2
2 2
2 1
1 2
2 2
1 2
1 2
2 1
1 2
2 1
1 1
1 2
1 2
1 2
1 2
1 1
2 2
1 2
2 2
2 1
1 2
2 1
1 2
1 2
2 2
1 1
2 2
2 1
1 2
2 2
2 2
1 1
1 1
1 1
1 1
1 1
2 1
2 2
2 1
1 1
1 2
2 1
1 1
1 1
2 2
2 2
2 1
2 2
2 2
1 2
2 2
1 1
1 1
1 2
2 2
2 2
1 2
2 2
2 1
1 2
1 1
2 1
1 1
2 2
2 2
2 2
1 1
2 1
2 2
2 2
2 1
2 2
2 2
1 1
1 2
2 1
1 1
1 2
2 2
2 2
2 1
2 2
1 1
2 1
2 2
1 1
1 1
1 1
2 1
1 1
2 1
1 1
1 1
1 2
1 2
2 1
2 1
1 2
1 2
1 2
2 2
2 2
2 2
1 1
1 2
2 1
1 2
1 2
1 1
2 2
1 1
1 1
1 1
1 2
2 1
1 2
1 2
1 1
1 1
1 2
2 2
1 2
2 1
1 2
1 1
1 1
1 1
2 2
1 2
1 1
1 1
2 2
2 2
2 2
1 2
1 1
1 1
1 2
2 2
1 1
2 1
2 2
1 1
2 1
2 2
1 1
1 2
1 1
1 1
1 1
1 1
1 1
1 1
1 2
2 2
2 2
2 2
1 1
2 1
1 2
1 2
1 1
1 2
2 2
2 2
2 2
2 1
1 2
1 2
1 1
1 1
1 2
1 2
1 1
1 1
1 1
1 1
1 2
2 1
1 1
2 2
1 2
1 1
2 2
1 1
2 1
2 2
2 1
2 2
1 2
2 1
1 1
1 1
1 1
1 1
2 2
1 2
1 2
1 2
1 2
1 1
2 2
2 1
2 2
1 2
1 2
2 2
1 2
2 1
2 2
2 2
1 2
2 1
2 1
2 2
1 2
1 1
2 1
2 1
1 2
2 1
1 1
1 1
1 2
2 1
2 2
1 1
2 1
2 1
1 2
1 2
1 1
2 2
1 2
1 2
2 1
2 2
1 1
1 1
2 1
2 1
1 2
2 2
1 1
2 2
1 1
1 2
1 1
1 2
2 1
1 2
1 1
1 1
1 2
1 2
1 1
1 2
1 2
1 1
2 1
1 2
1 2
2 1
2 1
2 1
2 2
1 2
1 2
1 2
1 2
2 1
2 1
2 2
2 1
1 1
1 1
1 1
1 2
2 2
2 2
2 2
2 2
1 2
2 1
2 2
2 1
1 1
2 2
2 2
1 2
1 1
1 1
1 2
2 1
2 1
1 1
2 2
2 2
1 2
1 2
1 2
1 2
1 2
1 1
2 1
1 1
1 2
1 2
2 1
2 1
2 2
1 2
1 1
1 2
1 1
1 1
2 2
1 2
2 2
2 2
1 2
2 2
1 1
1 1
2 1
2 2
1 2
1 1
2 1
2 2
1 1
1 2
2 2
1 2
2 2
1 2
2 1
1 2
2 1
1 1
2 1
2 2
1 2
1 2
2 2
2 1
2 1
1 1
2 1
1 1
2 2
2 2
2 1
1 1
2 2
1 2
1 1
2 1
2 1
2 1
2 2
1 2
2 2
2 1
1 1
1 2
2 1
1 1
2 2
1 1
1 2
1 2
1 2
2 1
2 1
2 2
1 1
2 1
1 2
1 1
2 2
1 2
2 1
1 1
2 1
1 2
1 1
2 1
2 1
2 1
1 1
1 2
1 1
1 1
1 2
1 2
2 1
1 2
2 1
2 2
1 1
2 2
1 2
1 2
2 1
1 1
1 1
2 1
1 2
1 2
1 1
1 2
1 2
2 1
2 2
2 2
1 2
2 1
1 2
1 1
2 1
2 1
2 2
1 1
1 1
2 1
2 1
2 1
2 2
2 2
1 1
1 1
2 2
1 1
2 1
1 1
1 1
2 2
2 1
2 1
1 2
2 1
1 1
1 1
2 2
2 1
2 2
1 1
1 1
2 2
2 1
1 1
2 2
1 2
2 2
2 2
2 2
2 1
2 1
1 2
1 1
1 2
2 2
1 2
2 2
2 2
2 2
1 2
2 1
1 2
2 2
2 1
2 2
2 2
2 2
1 1
1 2
2 1
2 1
2 2
2 2
2 2
2 2
1 1
2 2
2 2
1 2
2 1
2 1
1 2
2 2
2 1
1 1
2 2
1 2
1 1
2 1
1 2
2 1
1 1
2 1
2 1
1 2
2 1
1 2
1 1
2 2
1 1
2 2
2 1
2 2
1 2
2 2
2 1
2 1
1 2
1 2
1 1
1 1
1 2
1 2
1 1
1 1
1 1
2 2
1 2
1 2
1 1
2 1
1 2
2 1
1 2
1 1
2 2
1 1
1 2
1 1
1 2
1 2
1 1
1 1
2 1
2 1
2 2
1 1
2 1
2 1
1 1
1 1
2 2
2 2
2 2
1 1
2 1
2 2
2 1
1 1
1 1
2 1
1 2
2 2
2 1
1 2
2 2
1 2
1 1
2 2
2 1
2 2
2 1
2 2
2 1
1 1
2 1
1 1
1 1
2 1
1 1
2 2
2 1
2 1
2 2
1 2
1 1
2 1
1 2
1 2
1 1
1 1
1 2
1 1
2 2
1 1
2 2
1 2
2 2
1 1
2 1
1 2
1 1
1 2
2 2
2 1
2 1
2 1
1 1
1 2
1 2
1 1
2 2
1 1
1 2
1 2
2 2
1 2
1 1
2 2
1 2
1 1
2 2
2 1
2 1
2 1
2 2
1 1
2 1
2 1
1 2
2 2
1 1
1 1
1 2
1 2
1 2
1 1
1 1
1 2
1 1
1 2
1 2
1 2
2 2
2 1
2 2
1 2
1 1
1 1
1 1
1 1
2 2
2 2
2 1
2 1
2 1
2 1
2 2
2 1
2 2
1 2
1 1
1 1
2 1
1 2
2 1
2 2
2 1
2 2
2 1
1 2
2 1
2 1
2 2
1 2
1 1
2 1
2 1
1 1
1 1
2 2
1 2
2 2
1 2
1 2
1 2
2 1
2 2
1 1
2 1
1 1
2 1
1 1
1 1
2 1
2 2
2 1
2 1
1 2
2 1
1 1
2 2
2 1
2 1
1 2
1 2
1 1
1 1
2 2
2 1
2 1
1 1
1 1
1 1
2 2
1 1
1 1
2 2
2 1
1 1
2 1
2 2
2 2
1 1
2 1
1 2
2 1
1 1
1 2
1 2
1 2
1 2
1 2
2 2
2 2
2 2
1 1
2 1
1 1
2 1
1 2
1 1
2 1
2 1
2 1
1 1
1 1
2 2
1 2
2 2
1 1
2 2
1 2
2 2
1 2
2 1
1 2
2 2
1 1
1 2
1 1
2 1
1 2
2 1
2 1
1 2
2 1
2 2
1 2
2 1
2 2
2 2
2 1
2 2
1 2
2 1
1 1
1 2
1 1
1 2
2 1
2 2
1 2
1 2
2 2
2 1
2 2
1 2
1 1
2 2
1 1
2 2
2 2
2 2
1 2
2 1
1 1
1 1
1 1
1 1
2 1
2 2
1 1
2 1
1 2
1 2
1 2
2 1
1 1
2 1
2 2
1 1
2 2
1 1
2 2
1 1
1 1
2 2
2 1
2 1
1 1
1 1
1 1
1 1
2 2
2 1
1 1
1 2
1 2
1 1
2 2
1 1
2 2
2 2
1 1
2 2
1 2
2 2
1 1
1 1
1 2
2 1
1 1
1 2
2 2
1 1
2 1
2 1
1 1
1 2
1 1
2 1
2 2
1 1
1 2
2 2
2 2
1 2
2 1
1 2
2 2
2 2
1 2
1 1
1 1
1 2
1 2
2 1
1 1
2 2
1 1
2 1
1 1
2 2
2 1
1 2
1 1
2 2
1 2
2 1
2 2
1 1
2 2
2 1
2 2
1 1
1 2
2 1
1 2
1 1
1 2
2 2
1 1
2 2
1 2
2 1
1 1
2 2
1 1
2 1
2 2
2 2
2 1
2 1
2 2
1 2
1 2
1 2
1 2
2 2
1 1
2 2
2 1
2 2
2 2
1 1
2 2
1 1
1 1
2 2
1 1
1 2
2 1
2 2
1 2
2 2
2 2
1 1
1 1
2 1
2 1
1 2
1 1
1 1
1 1
1 2
1 2
1 2
1 2
2 1
2 2
2 2
1 1
1 1
2 2
2 1
1 1
1 2
2 1
1 1
2 2
1 2
1 2
1 1
2 1
1 2
1 2
1 1
2 1
1 2
2 2
2 1
1 1
2 1
2 1
2 1
2 2
2 2
2 2
2 2
1 2
1 1
1 2
2 1
1 2
1 1
2 1
1 1
2 1
1 2
1 1
1 2
1 1
2 1
1 1
1 1
1 1
2 1
1 2
2 2
2 2
2 1
2 2
1 2
1 1
2 1
2 1
1 2
1 1
2 1
2 2
1 2
2 1
2 1
2 1
1 1
1 2
1 1
2 1
1 1
2 1
2 2
2 2
1 1
1 1
1 2
1 1
1 1
1 2
1 2
2 2
1 2
2 1
1 1
1 1
1 1
1 2
1 2
1 2
2 1
2 2
2 2
2 2
1 1
2 2
2 2
1 1
1 2
2 2
2 1
2 2
2 2
1 2
1 2
1 1
2 1
2 2
1 1
2 1
1 1
1 1
1 2
1 2
1 1
2 2
1 1
1 1
1 2
2 2
1 1
2 1
1 2
2 2
2 1
2 1
1 1
1 1
2 2
2 1
1 2
1 1
1 1
2 2
2 1
2 1
2 2
1 2
1 2
2 2
1 1
2 2
1 1
1 2
1 2
1 2
2 2
1 1
1 1
2 2
1 2
2 1
2 2
2 2
1 1
1 2
1 2
1 1
2 1
2 1
1 2
1 1
1 2
2 1
1 1
2 2
1 2
2 1
2 2
2 1
1 2
2 2
2 1
2 2
2 1
1 2
2 2
2 1
1 1
2 1
1 1
2 2
2 1
2 2
2 2
2 1
1 2
2 2
1 1
1 1
2 1
1 2
2 1
2 1
1 1
1 2
1 2
2 1
1 2
2 2
1 1
2 1
1 1
2 1
1 2
1 1
1 2
1 2
1 1
1 1
1 2
2 1
2 2
2 1
2 1
1 1
1 2
1 2
1 1
1 2
1 1
1 1
1 1
1 2
2 2
2 2
2 1
1 1
1 2
1 1
2 2
2 1
1 1
1 2
2 2
2 1
2 2
2 1
2 2
1 1
2 1
1 2
1 2
2 1
2 1
2 1
1 2
2 1
2 2
2 2
2 1
2 2
1 1
1 2
2 1
2 1
2 1
1 1
2 1
2 1
2 1
2 2
2 2
1 1
1 2
1 2
1 2
2 2
1 2
1 2
2 2
2 1
1 1
2 1
2 2
1 2
2 2
1 2
1 2
2 1
2 2
2 2
2 1
1 2
1 2
2 1
2 1
2 1
1 2
1 1
2 1
1 2
1 1
2 1
2 1
2 2
2 1
2 2
2 2
2 1
2 2
1 1
2 2
2 1
2 1
2 2
2 1
2 1
1 1
2 2
2 1
2 1
2 1
2 2
1 1
2 2
1 2
2 1
2 2
1 1
2 1
1 1
2 1
1 2
1 2
1 1
2 2
2 1
2 1
1 1
1 1
1 2
1 1
2 1
2 1
1 2
2 2
2 1
2 2
2 1
2 1
2 1
1 1
2 1
2 2
1 1
1 2
2 2
2 1
2 1
1 1
1 2
1 2
1 2
2 1
1 1
2 1
1 2
1 1
1 1
2 2
2 2
1 2
2 2
2 2
1 1
2 2
1 2
2 1
1 2
2 1
1 1
2 2
2 2
2 2
2 2
2 2
2 2
1 1
2 2
1 1
2 2
1 2
1 2
2 2
1 1
1 1
1 1
2 2
2 2
2 1
1 2
1 1
2 1
2 1
1 2
1 1
1 1
1 2
2 2
2 2
1 1
2 1
1 2
1 1
2 2
1 1
2 2
1 1
2 1
2 1
2 1
2 1
1 1
2 2
2 1
1 2
2 1
2 1
2 2
1 2
1 2
1 2
1 1
1 1
1 2
1 2
1 1
1 1
1 1
2 1
2 1
2 2
1 2
2 1
1 2
1 2
1 1
1 1
1 2
1 1
2 1
2 2
2 2
2 1
2 2
1 1
2 1
2 1
1 2
1 1
1 2
2 2
2 1
2 1
2 2
2 1
1 1
1 1
1 2
1 1
2 2
2 1
1 1
2 1
1 1
1 2
2 2
1 1
2 1
2 2
2 1
2 2
1 2
1 1
2 2
1 2
1 1
2 2
1 1
1 2
1 2
2 2
2 2
1 1
2 1
2 2
1 1
1 2
2 2
2 1
1 2
2 2
1 2
2 2
2 1
1 2
1 1
1 1
2 2
2 1
2 2
1 2
2 1
2 2
1 2
2 2
1 2
2 2
2 1
2 2
2 2
1 2
2 1
2 2
1 1
2 1
1 1
2 2
1 2
1 1
2 1
1 2
1 2
1 2
1 2
1 1
2 2
1 2
2 1
2 2
2 1
2 2
2 1
1 2
2 2
1 2
1 2
2 2
2 1
2 2
2 1
2 2
2 2
1 2
2 1
2 2
1 2
1 1
1 2
2 1
1 1
2 1
1 2
2 2
1 2
2 1
1 1
2 1
2 2
2 2
2 2
2 1
2 1
2 2
1 2
1 1
2 1
2 2
1 1
2 2
1 1
1 2
1 2
2 2
2 1
1 1
1 2
2 2
1 2
1 2
2 2
2 1
2 1
1 1
2 2
2 2
2 1
1 1
1 2
1 1
1 1
1 1
1 2
1 2
1 1
2 2
1 1
1 2
2 1
1 1
1 1
2 2
2 2
1 2
2 2
2 1
2 2
2 2
2 1
2 2
1 2
2 2
1 2
1 2
1 1
1 1
1 1
2 2
2 1
2 2
1 2
1 1
2 1
2 2
1 1
1 1
2 2
2 1
1 1
2 2
2 1
1 2
2 1
1 2
1 1
1 2
2 1
2 2
2 1
1 1
1 1
2 1
1 1
2 1
1 2
1 2
2 2
1 1
1 2
1 1
2 2
1 1
2 1
1 2
1 2
1 1
1 2
1 1
2 2
2 2
2 1
2 2
1 2
1 1
2 2
1 1
1 1
1 2
1 1
2 1
2 1
1 1
1 1
2 2
2 1
1 1
2 1
2 1
1 1
1 1
2 2
2 2
2 2
1 2
1 1
2 1
2 1
2 2
1 2
2 2
2 2
1 1
1 2
2 1
1 1
1 1
1 2
2 1
2 2
2 2
2 1
1 1
2 2
1 1
1 2
2 1
1 2
2 1
1 2
1 2
1 2
1 2
2 1
1 1
1 2
1 2
1 1
1 2
1 2
2 2
2 2
1 2
1 1
2 2
1 1
2 1
2 2
2 1
2 1
1 1
1 1
1 1
2 1
2 1
1 2
2 1
2 2
1 1
2 2
2 1
1 2
1 2
1 1
1 1
1 1
1 2
2 2
2 1
2 1
1 1
2 2
2 1
2 2
1 1
2 2
1 1
2 2
2 2
1 2
1 2
1 2
2 2
1 2
1 1
2 1
2 2
1 1
1 1
1 1
2 1
1 2
2 2
2 2
1 1
1 1
1 2
1 1
1 1
2 1
2 1
1 1
2 2
1 2
1 2
2 1
2 2
1 2
1 2
1 2
1 1
2 1
1 1
1 1
1 1
2 1
1 2
2 2
1 2
2 1
1 1
2 2
1 2
2 1
1 1
2 1
2 1
2 1
2 2
2 2
1 1
2 1
1 2
2 1
2 2
2 1
1 1
1 1
2 1
2 1
2 2
1 1
1 2
1 1
2 1
2 1
1 1
2 1
1 2
2 1
2 2
1 2
2 2
1 1
2 1
2 1
1 1
1 2
1 2
1 1
1 2
2 2
2 2
1 2
1 2
1 2
1 1
2 1
2 1
2 2
1 2
1 1
2 1
2 1
2 2
2 2
2 1
2 2
2 2
2 1
2 1
1 2
1 1
2 1
2 1
1 1
1 2
1 2
1 2
1 2
1 1
2 1
1 2
1 2
1 2
1 2
1 2
1 2
1 1
2 1
1 1
1 2
2 2
1 1
2 2
2 1
1 2
2 2
1 1
2 1
1 1
2 2
2 1
2 1
1 2
2 2
2 2
2 2
1 1
1 1
2 1
2 1
1 1
2 1
1 1
1 1
2 2
1 1
2 2
1 2
2 1
2 1
2 2
2 1
1 1
1 1
1 2
2 2
2 2
1 2
2 2
2 1
1 2
2 1
1 1
2 1
1 2
1 1
2 2
1 1
2 1
1 2
2 2
1 2
2 2
2 2
2 2
2 1
2 1
1 2
2 1
1 2
1 2
2 1
1 1
2 1
1 2
1 2
1 2
2 2
2 2
1 2
1 2
2 2
1 1
1 1
2 1
1 1
2 2
1 2
2 1
1 2
2 1
2 2
2 2
1 1
2 1
2 2
2 2
1 1
2 2
1 1
1 2
1 2
2 2
2 1
1 1
1 2
2 1
1 2
2 1
2 2
1 1
1 2
2 1
1 2
2 2
2 2
1 1
1 1
2 2
1 2
1 1
1 1
1 2
1 1
2 1
2 1
1 1
1 1
1 1
2 1
2 1
1 1
2 2
2 2
1 1
1 1
1 2
1 1
1 1
1 2
1 1
1 2
2 2
2 2
2 2
2 1
2 2
1 1
1 1
2 1
2 2
2 1
1 1
2 1
1 1
1 1
2 1
1 1
1 1
1 2
2 1
2 2
2 2
2 1
1 2
1 1
2 2
1 1
1 1
2 1
2 2
2 1
1 2
1 1
1 2
1 1
1 2
1 1
2 1
1 2
1 1
2 1
1 1
1 2
1 1
2 1
1 1
1 1
2 2
2 2
2 1
1 2
2 1
1 2
2 1
1 1
1 1
1 2
1 1
2 1
1 1
1 1
1 1
1 1
2 1
2 2
1 1
1 1
1 1
1 1
1 2
2 1
2 2
2 2
1 1
2 1
1 1
2 1
1 1
1 1
2 2
1 1
2 1
1 1
2 2
1 1
2 2
1 1
1 2
1 2
2 2
2 2
2 1
2 1
1 2
1 2
1 2
1 1
2 1
1 2
1 2
1 1
2 2
2 2
2 1
1 2
2 1
1 2
2 2
1 1
1 1
1 1
2 1
2 1
2 2
1 1
2 2
1 2
1 1
2 2
1 1
1 1
2 2
2 2
2 1
2 1
1 1
1 2
1 2
2 2
1 2
1 2
1 1
1 2
2 2
2 1
2 1
1 1
2 1
2 2
2 1
2 1
1 1
2 1
1 2
1 2
1 2
1 1
2 1
2 2
2 1
2 1
1 2
1 1
2 1
1 1
2 1
1 2
2 1
2 2
1 1
1 1
1 1
1 1
1 2
1 1
2 2
2 1
1 2
1 1
2 1
2 1
2 1
1 1
1 1
2 2
2 1
2 2
1 1
2 1
2 1
1 2
2 2
2 1
2 1
2 2
2 1
1 1
1 2
1 2
2 1
2 1
2 2
1 2
2 1
1 1
1 2
2 1
2 2
2 1
2 1
2 2
2 2
2 2
2 2
1 2
1 2
2 2
2 1
1 1
1 2
1 2
2 1
1 2
2 1
2 1
2 1
2 1
1 1
2 2
2 1
2 1
1 2
1 1
1 1
1 2
1 2
1 1
2 1
1 2
2 2
1 1
1 2
1 2
1 2
2 2
2 1
2 2
2 1
2 2
1 2
2 2
2 1
1 2
2 1
2 2
1 1
1 2
1 2
1 2
1 2
1 1
1 2
1 1
1 2
2 2
1 2
1 1
1 1
2 1
1 2
1 1
1 1
1 1
2 2
1 2
2 2
1 1
1 2
1 1
1 2
1 1
1 1
2 2
1 1
1 1
1 1
1 1
2 1
2 1
1 1
1 1
1 2
2 1
1 2
1 1
1 1
1 2
2 1
1 1
1 1
1 2
2 1
1 2
2 1
1 1
1 2
1 2
1 2
2 2
1 1
2 2
2 2
2 1
2 1
1 2
2 2
2 2
1 2
2 2
1 1
1 1
2 2
2 1
1 1
1 1
2 1
2 1
2 2
2 2
2 1
2 2
2 2
1 2
1 2
2 1
2 2
1 1
2 1
1 2
1 1
2 1
1 2
1 1
1 1
2 1
2 2
2 2
2 2
1 1
1 1
2 2
2 2
2 2
2 1
1 2
2 2
2 1
2 1
1 2
2 1
1 1
1 1
1 1
2 1
1 2
1 2
1 2
2 2
2 2
1 2
2 1
2 1
1 1
2 1
1 1
1 1
2 1
2 1
2 1
2 2
2 1
2 1
2 2
2 1
2 2
1 2
1 1
1 2
2 2
1 2
1 2
2 1
1 2
2 1
2 2
2 2
1 1
2 2
2 1
2 1
1 1
2 1
1 2
1 2
2 1
1 1
2 1
2 2
2 1
1 1
1 1
1 1
2 1
2 1
2 2
1 2
1 1
2 2
1 2
2 2
1 1
2 1
2 2
1 1
2 1
2 1
1 2
1 2
2 2
2 1
1 1
2 2
1 1
2 2
2 2
2 1
1 1
2 1
1 2
2 1
1 1
1 2
1 1
1 1
1 1
2 2
2 1
2 1
1 1
2 1
1 2
1 2
2 2
1 2
1 1
2 2
1 1
2 1
2 1
2 2
2 1
2 2
2 2
1 1
1 1
2 1
2 2
2 2
1 2
2 2
2 1
2 1
2 2
2 1
1 2
1 1
2 2
1 1
2 2
2 2
1 2
2 1
2 2
1 1
2 1
2 2
2 1
2 1
1 2
1 1
1 2
1 1
2 2
1 1
2 1
1 2
1 2
2 2
2 2
1 2
2 1
1 2
2 1
2 1
1 2
2 2
2 2
2 2
1 2
2 1
1 1
1 1
1 1
2 1
1 2
1 2
1 1
1 1
1 1
1 1
2 2
1 2
1 1
1 1
2 2
2 2
1 2
1 1
2 1
2 1
2 1
1 2
2 2
1 2
2 2
1 2
1 2
1 1
1 1
1 1
1 1
1 2
1 1
2 1
2 1
1 2
2 1
1 1
2 1
1 2
1 1
2 1
1 2
1 1
2 1
1 2
1 2
1 2
1 1
1 1
2 1
2 1
2 2
1 2
1 2
2 2
2 1
1 2
1 2
1 2
1 1
2 2
1 1
2 1
2 1
2 1
2 1
2 2
2 2
2 1
2 2
1 2
1 1
1 1
2 1
1 2
1 2
2 2
1 2
1 1
2 1
1 1
1 2
1 1
2 1
2 2
1 2
2 2
2 1
2 1
2 2
1 1
2 1
1 2
2 2
1 1
1 2
2 2
2 2
1 2
1 2
1 2
1 1
1 1
1 1
2 1
2 1
1 1
2 2
1 1
1 2
2 2
1 2
1 1
1 2
2 2
1 2
1 1
2 2
2 1
2 1
2 2
1 2
1 1
1 2
1 2
1 2
1 1
1 2
2 1
2 1
1 1
2 2
2 1
1 2
2 1
1 2
2 2
1 2
2 1
1 1
1 1
2 2
1 1
1 1
1 2
2 2
1 2
2 2
2 1
1 2
1 1
2 1
2 1
2 1
1 1
2 2
1 2
1 2
1 2
1 2
2 2
2 2
2 1
1 1
1 2
1 2
2 2
2 2
1 2
1 1
1 1
2 1
1 2
2 2
1 2
2 1
2 2
1 2
2 2
1 1
2 1
1 1
2 2
1 1
1 2
1 1
1 2
2 1
1 2
2 2
1 1
2 2
1 2
1 2
1 1
1 2
2 1
2 1
1 2
1 2
2 2
1 1
1 1
1 2
1 2
2 1
2 1
2 2
2 2
1 1
1 2
2 1
1 1
2 1
2 2
2 1
1 1
1 1
2 1
1 2
2 2
1 2
2 1
2 2
1 1
1 2
2 2
2 1
2 2
2 2
2 1
1 2
1 2
1 1
1 1
1 2
2 1
1 2
2 1
2 2
1 1
1 2
1 1
1 2
2 1
1 2
1 2
1 2
1 2
1 2
1 2
1 2
2 1
2 2
1 2
2 2
1 2
2 1
1 2
2 2
1 1
2 1
1 1
1 2
1 1
2 2
1 1
2 2
1 1
1 2
1 1
2 1
1 2
1 1
1 2
1 1
2 1
1 2
2 2
1 2
2 1
2 2
2 2
2 2
1 1
2 1
1 2
1 1
1 2
1 2
2 1
2 1
2 2
1 1
1 1
1 1
1 1
1 2
1 2
2 1
2 2
1 2
1 2
2 2
2 2
2 1
1 1
1 1
2 1
2 2
2 1
2 1
1 2
1 2
2 2
1 2
2 2
1 2
2 1
1 1
2 1
2 1
2 2
1 2
1 1
2 1
1 2
2 1
1 1
2 2
2 1
2 2
1 1
2 2
1 1
1 1
1 2
2 2
2 1
2 1
2 1
1 2
1 1
1 2
1 2
2 2
2 2
2 2
2 2
1 2
1 2
2 2
2 1
2 2
1 2
2 1
1 1
2 1
2 1
2 2
2 2
2 2
2 1
1 1
1 2
1 1
1 2
1 1
2 2
1 2
2 2
1 1
1 1
1 2
1 2
2 2
1 2
1 2
1 1
2 1
1 1
1 2
1 2
2 1
1 1
1 2
2 2
2 1
2 2
1 1
2 1
2 1
2 1
1 1
1 1
1 2
2 2
1 2
1 2
1 1
1 2
2 1
1 1
1 1
2 1
1 2
2 2
1 1
2 2
1 2
1 1
2 1
1 2
1 1
1 1
2 2
1 2
1 2
2 1
1 1
2 2
1 1
2 2
1 2
1 1
1 2
2 2
2 1
2 1
2 2
2 1
1 2
1 2
1 1
1 2
1 1
1 2
1 1
2 2
2 1
1 2
2 1
2 1
2 2
2 1
2 1
2 2
1 1
2 2
2 2
2 1
1 1
1 1
2 2
1 2
2 2
1 2
1 1
1 2
1 1
2 2
1 1
1 1
1 2
1 2
1 2
2 2
2 2
1 2
1 2
1 2
1 2
1 1
1 1
1 2
2 1
1 1
2 1
1 2
1 1
2 1
2 2
2 2
1 2
1 2
2 1
1 2
1 1
2 2
1 2
2 1
1 1
1 1
1 2
1 1
2 2
2 2
2 1
2 1
2 2
1 2
1 1
2 1
1 2
1 1
2 2
1 1
2 2
2 1
2 1
1 1
1 1
2 2
2 2
1 2
1 1
1 2
2 2
1 2
1 2
2 2
1 2
2 2
1 1
1 2
1 1
1 1
1 1
1 2
2 2
2 1
2 1
2 2
2 2
2 2
1 2
2 2
1 1
2 2
1 1
1 2
1 1
2 2
2 1
1 1
1 2
1 2
2 2
1 2
1 1
1 2
2 1
2 1
2 2
1 2
2 1
2 1
1 1
1 1
2 1
2 1
2 1
1 2
2 1
2 1
2 2
1 1
1 1
2 2
2 1
1 2
1 1
1 2
2 1
2 1
2 2
2 2
2 1
2 1
2 1
2 2
2 2
1 2
2 2
2 2
1 2
2 1
2 1
1 1
2 1
1 2
1 2
1 1
1 2
2 2
1 2
2 2
1 1
1 1
1 1
2 1
1 2
1 2
1 2
1 1
2 1
2 2
1 2
1 2
2 2
1 1
2 2
1 2
1 2
2 1
1 1
2 1
2 2
2 1
2 1
2 1
2 2
2 1
1 2
2 1
2 2
2 2
1 1
1 2
1 1
2 2
2 1
1 2
1 2
2 1
1 2
1 1
2 1
2 1
1 2
1 1
2 1
2 1
2 2
1 2
2 1
2 2
2 2
1 2
2 1
1 1
1 1
2 1
2 2
1 1
1 1
1 2
1 1
1 2
2 2
1 2
2 1
2 2
2 2
2 2
2 2
1 2
2 1
1 1
1 1
1 2
2 1
1 2
1 1
1 1
1 2
2 1
1 2
1 2
2 1
1 2
1 2
1 2
1 1
2 1
1 2
2 2
1 1
2 2
2 2
2 2
2 1
2 1
1 1
2 2
1 1
1 2
2 2
1 1
1 2
2 1
1 2
1 1
2 2
1 2
2 2
1 1
2 1
1 2
1 2
1 2
2 2
2 2
2 1
2 2
1 1
2 2
2 1
1 1
2 2
2 1
2 1
2 1
1 1
1 1
2 2
2 1
1 1
1 1
1 1
2 1
2 2
1 2
1 1
2 2
2 2
2 1
2 2
2 1
2 1
2 2
2 1
1 2
1 2
1 1
1 1
2 2
1 2
2 2
1 2
2 1
1 2
2 1
2 2
2 2
2 2
1 2
2 1
1 2
2 2
1 2
2 1
2 1
1 1
2 2
2 1
2 2
1 1
1 1
2 1
2 1
1 2
2 1
1 2
2 1
1 1
2 1
2 2
1 1
1 2
1 2
1 2
1 1
1 2
2 1
1 1
1 1
2 1
1 2
2 1
2 2
2 2
1 2
2 2
2 2
2 2
1 2
2 2
2 2
1 2
1 2
1 1
2 2
1 2
2 1
2 1
1 1
2 1
1 1
1 2
2 2
1 1
1 2
2 2
1 1
2 1
2 1
1 2
2 2
2 2
1 1
2 1
1 1
2 1
1 2
2 1
2 1
1 2
1 2
1 2
2 1
1 2
2 2
2 2
2 2
1 2
2 1
2 2
2 2
1 1
2 2
2 2
1 1
1 1
1 1
1 2
2 1
2 1
2 1
1 2
1 1
2 2
2 1
2 1
2 1
1 1
1 2
2 2
1 2
2 1
2 2
1 1
2 2
2 2
1 1
1 2
2 2
1 1
2 2
2 2
1 1
2 1
2 2
2 1
1 1
2 1
2 2
2 2
1 1
2 2
2 2
1 1
1 2
2 2
1 2
2 2
2 1
1 2
2 2
2 1
1 1
2 2
1 1
1 2
2 2
2 1
1 2
2 1
2 2
2 2
2 2
2 2
2 2
2 2
1 2
1 2
2 1
2 2
1 2
2 1
2 1
1 2
1 2
1 1
1 1
1 1
1 1
2 1
1 2
2 1
2 2
2 1
2 1
2 1
1 2
2 2
1 2
1 1
1 2
1 2
1 1
2 2
1 2
2 1
2 1
1 2
2 1
1 1
2 1
1 2
1 1
2 2
1 1
2 1
2 1
2 1
1 2
2 1
1 1
2 2
1 1
1 1
1 1
1 1
1 2
2 1
2 1
1 1
1 1
1 1
2 1
2 1
1 2
2 1
2 1
2 2
2 2
2 1
2 2
1 2
1 2
2 1
2 2
1 2
1 2
2 1
1 2
1 1
2 2
1 2
2 2
1 1
1 2
1 1
2 1
1 1
1 1
2 1
1 2
2 2
2 2
1 1
1 2
2 2
2 1
2 2
1 2
2 2
2 1
1 1
1 2
2 1
1 2
1 2
2 1
1 1
1 2
2 2
2 1
1 1
1 2
1 1
2 2
1 1
2 1
1 1
1 1
1 2
1 2
2 1
2 2
2 1
1 2
2 2
2 2
2 1
2 2
2 1
2 1
1 1
1 1
1 2
1 1
2 1
1 1
1 2
2 1
2 2
2 1
2 2
2 2
1 2
1 1
2 2
2 1
2 2
2 2
2 1
1 2
1 2
1 1
2 2
2 2
2 2
1 1
2 2
2 2
1 1
1 1
2 2
2 1
2 2
1 2
1 1
2 1
2 2
2 2
1 2
1 2
2 1
2 1
2 2
1 2
1 1
2 1
2 2
2 2
2 2
2 2
1 2
1 2
2 2
2 1
1 1
1 1
2 2
1 1
1 2
2 2
1 2
1 2
2 1
1 1
2 2
2 1
2 1
1 2
1 1
2 2
2 2
1 1
1 1
2 2
1 2
2 2
1 2
2 1
2 1
1 2
1 2
1 2
1 2
2 1
1 2
1 1
2 1
2 1
1 2
2 1
2 2
2 1
1 2
2 1
2 2
1 2
2 1
2 2
1 2
2 1
2 2
1 1
1 1
2 2
1 1
2 1
2 2
1 2
1 2
2 1
2 1
1 1
1 2
1 2
2 1
2 1
2 1
2 2
1 2
1 2
1 2
1 2
1 1
2 2
2 2
1 1
1 1
2 2
2 2
1 1
2 1
1 1
2 1
2 2
2 1
2 1
1 1
2 2
1 1
1 1
1 2
2 1
2 1
2 1
1 1
2 1
2 1
2 1
2 1
2 2
1 2
2 1
2 1
1 1
2 2
1 1
1 2
2 2
1 1
1 2
2 1
2 1
2 2
1 1
1 1
1 1
1 1
1 2
2 1
2 1
1 2
1 2
1 2
1 1
2 1
2 1
2 2
1 2
2 2
2 1
2 1
2 1
2 2
2 1
2 1
2 2
1 2
1 2
1 2
1 1
1 2
2 2
1 1
2 2
1 2
1 1
2 2
2 2
2 2
1 1
1 1
2 1
1 1
2 2
2 1
2 2
2 1
1 2
1 1
2 1
2 1
2 1
2 2
1 2
2 2
1 2
2 1
2 2
2 2
2 2
1 2
1 1
2 2
1 1
1 1
1 1
1 1
2 2
1 2
2 1
2 1
1 2
1 2
2 2
1 1
1 2
2 1
2 1
2 1
2 1
1 2
2 1
1 1
1 2
2 1
2 2
1 1
2 2
2 2
1 1
1 2
2 1
1 1
2 1
1 1
2 2
2 1
2 1
2 1
1 1
2 1
2 1
1 1
1 1
2 2
2 1
1 2
2 2
1 2
2 1
1 1
1 2
1 1
1 1
2 2
2 2
2 2
2 1
1 1
1 2
2 2
1 2
2 1
1 2
2 2
1 1
2 1
2 1
1 1
2 2
1 1
2 2
1 1
1 2
1 2
2 1
2 2
2 1
1 1
1 2
1 2
1 1
1 2
2 2
2 2
1 1
2 1
1 1
2 1
1 2
1 2
1 1
1 2
1 1
2 2
2 2
1 2
1 1
1 2
2 1
1 2
1 1
1 1
1 1
1 2
1 1
2 1
1 2
2 1
2 2
1 2
2 1
2 1
2 1
1 1
2 1
1 1
1 1
1 1
2 2
1 2
1 1
1 2
2 2
2 1
1 2
1 1
2 2
2 2
1 2
2 2
2 1
2 1
2 2
2 2
1 1
1 1
1 1
2 1
2 1
2 1
2 1
2 2
2 1
2 2
1 2
1 1
2 2
2 2
2 2
1 2
1 2
1 2
1 1
2 1
1 2
1 2
1 1
1 1
2 2
2 1
2 1
2 1
2 2
1 2
2 2
2 1
1 2
2 1
1 1
2 2
2 1
2 2
1 2
1 2
2 1
1 2
1 1
2 2
2 2
1 2
1 1
2 1
2 1
1 1
1 2
1 1
1 2
1 1
1 2
1 1
1 1
2 2
2 1
2 1
1 2
2 1
1 2
1 1
1 2
2 2
2 2
2 1
1 1
1 2
2 2
2 2
2 2
1 2
2 1
2 1
2 2
1 2
2 1
2 1
1 2
2 1
1 1
2 1
1 1
1 1
1 2
2 1
2 2
1 1
2 2
1 2
1 1
2 2
2 1
1 2
1 2
2 2
2 2
2 2
2 1
2 2
1 2
1 2
1 1
1 2
1 1
2 2
1 2
2 2
2 2
1 1
2 1
1 2
2 2
1 1
2 1
2 2
2 1
2 2
1 1
1 2
2 2
2 2
2 2
1 2
1 2
1 1
2 1
2 2
1 1
2 1
2 1
1 2
2 1
2 1
2 2
2 2
2 1
2 2
2 1
1 1
2 2
2 1
2 2
1 1
2 1
1 1
2 1
1 2
2 2
1 1
1 1
1 2
1 2
1 1
2 1
2 2
1 1
1 2
2 2
2 2
1 2
1 1
2 2
2 1
1 2
2 2
1 2
2 1
2 1
2 2
1 2
1 1
2 1
2 2
1 1
1 1
2 1
1 1
1 2
1 1
2 2
1 1
1 1
1 1
1 1
1 2
1 1
1 1
2 2
1 2
2 2
1 2
2 1
1 1
1 2
1 1
1 2
2 2
1 1
1 2
2 1
1 2
2 2
2 2
1 2
1 1
2 1
1 1
1 1
1 2
2 2
2 2
2 1
1 2
1 2
2 1
1 1
1 1
1 1
1 2
1 2
2 2
2 1
1 1
1 1
1 1
1 1
2 2
1 1
2 2
2 2
1 2
1 2
1 2
2 2
2 2
2 1
2 1
1 2
2 2
1 2
1 2
2 2
2 2
2 1
1 2
2 1
1 2
2 1
1 2
1 1
2 2
1 2
2 1
2 1
2 2
1 1
1 2
2 1
2 2
2 2
2 1
1 2
1 1
2 1
1 1
1 2
2 1
1 1
1 2
2 2
1 1
2 2
2 1
2 2
2 1
2 2
2 1
1 1
2 2
1 1
1 1
1 2
1 1
1 1
1 1
1 1
2 1
2 1
2 2
2 1
2 2
2 1
1 1
1 2
1 2
2 1
1 2
2 2
2 1
1 2
1 1
2 2
1 2
1 1
2 1
1 1
2 2
2 2
2 1
2 1
1 1
1 1
1 1
2 2
1 2
2 1
1 1
1 2
2 2
1 2
1 1
2 1
1 2
2 1
1 1
2 2
2 1
1 2
2 2
1 1
2 2
2 1
1 1
2 1
2 2
2 2
1 1
1 2
1 2
2 1
1 1
2 2
1 1
1 2
1 1
1 1
1 2
1 2
1 1
1 2
1 2
1 2
2 1
2 2
1 2
1 2
2 2
2 1
2 2
2 2
2 1
1 2
2 1
2 2
2 2
1 2
2 1
2 2
1 2
1 1
2 1
1 2
2 1
1 2
1 1
1 2
2 2
1 2
2 1
2 1
1 1
2 2
1 1
2 2
2 2
1 1
1 1
1 1
2 2
2 1
1 2
1 2
1 1
2 2
1 2
1 2
1 1
2 2
2 2
2 1
2 1
1 1
2 2
1 2
2 1
2 1
1 1
2 2
1 1
2 1
1 1
1 1
2 2
1 1
2 2
2 2
1 2
1 1
1 1
2 2
1 2
2 2
1 1
1 1
2 1
1 1
1 2
1 2
1 2
2 2
1 2
2 1
1 2
1 1
1 2
2 2
1 1
2 1
2 1
2 2
1 2
1 2
2 2
2 1
2 1
1 1
2 1
2 2
1 2
2 2
1 2
1 2
1 1
2 2
2 1
2 1
1 2
2 1
1 2
1 1
2 2
2 2
1 1
1 1
1 2
1 2
1 1
2 1
1 2
1 1
1 2
1 2
2 2
1 2
2 1
1 1
2 2
1 2
2 2
1 2
1 1
1 1
2 2
1 2
2 1
2 1
1 1
2 2
2 1
1 1
2 2
2 2
2 1
2 2
1 1
2 2
1 2
1 1
1 2
1 2
2 2
1 1
2 1
1 1
2 1
1 2
1 1
1 1
1 2
2 2
2 2
2 2
1 2
1 2
1 2
1 1
1 2
1 1
2 1
2 2
1 2
2 1
1 1
1 2
2 2
1 1
2 2
1 2
1 1
2 1
1 2
1 2
2 2
2 2
1 2
2 1
2 1
2 1
2 2
2 1
1 1
2 2
1 2
1 2
2 1
1 1
2 2
2 1
2 1
1 2
2 1
1 1
1 1
1 2
1 2
2 1
2 1
2 1
1 1
2 2
1 1
2 1
2 2
1 1
1 1
2 1
2 1
2 1
1 2
2 2
2 1
2 1
2 2
2 1
1 2
2 1
1 2
1 2
1 2
2 1
1 2
1 1
2 1
1 1
1 2
1 1
1 1
1 1
2 1
1 2
1 2
1 2
2 2
1 2
1 2
2 2
2 2
1 2
2 2
1 1
2 1
2 2
1 2
2 2
1 2
2 2
2 1
2 2
1 2
2 1
2 1
1 2
1 1
1 2
1 1
1 2
2 1
1 2
2 2
1 1
2 1
1 1
1 1
2 2
1 1
2 1
1 1
1 2
1 2
2 2
1 2
1 2
2 1
2 1
2 1
2 2
2 2
2 1
1 2
1 2
1 1
1 1
2 1
2 2
2 1
2 1
1 2
1 2
2 1
2 1
2 1
1 1
2 1
1 1
2 1
1 2
2 2
1 1
2 2
1 2
1 1
2 1
2 2
1 1
1 1
2 2
2 2
1 2
2 2
1 1
2 1
2 1
2 2
2 1
1 1
2 1
1 2
2 1
1 1
2 2
1 1
1 2
2 2
2 2
1 2
2 2
1 1
1 2
2 2
1 2
2 1
2 2
1 2
1 1
1 1
2 2
2 2
2 1
1 2
1 2
2 2
1 1
1 2
1 2
2 2
2 2
1 2
1 1
1 2
1 2
1 2
1 2
2 1
1 1
1 1
2 2
1 1
1 1
2 2
2 2
1 1
2 2
2 2
1 2
2 2
1 1
2 2
1 2
2 2
2 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 2
1 1
1 1
1 2
1 1
2 2
2 2
2 1
2 1
2 1
2 2
1 2
2 1
1 1
2 2
2 2
2 2
2 1
2 1
2 1
2 1
1 1
2 1
2 1
1 2
1 2
1 1
1 1
2 2
2 1
2 1
1 2
2 1
1 1
2 2
1 2
1 1
1 2
1 1
2 1
1 2
2 2
2 2
1 2
2 2
2 2
1 1
1 1
2 1
2 2
1 1
1 1
1 2
2 1
2 1
2 1
2 1
2 2
1 1
1 2
1 1
2 1
1 1
1 2
1 1
2 1
1 2
2 1
1 1
1 1
1 1
2 1
2 1
1 1
1 1
2 1
2 1
1 1
2 1
1 1
1 1
2 1
1 1
2 2
1 1
1 2
2 2
2 2
2 1
2 1
1 2
2 1
2 2
2 1
2 1
2 1
2 2
1 1
2 1
2 2
1 2
1 1
2 1
1 2
2 2
1 1
2 2
2 2
1 1
2 1
2 2
2 2
2 1
2 2
1 1
2 1
2 2
1 2
1 1
2 2
2 2
2 2
1 2
2 1
1 2
2 1
2 1
1 1
1 1
2 2
1 2
2 1
2 1
1 1
1 2
1 1
1 2
1 2
2 1
1 1
2 2
2 2
2 1
1 1
1 2
1 2
2 1
1 1
2 2
1 2
1 1
2 2
2 1
2 2
1 1
2 2
1 1
2 2
1 1
2 2
2 1
1 1
1 1
1 1
2 2
1 2
1 1
1 2
2 2
1 2
1 2
1 1
1 1
2 2
2 1
1 2
1 1
1 2
1 1
1 1
1 2
2 1
1 1
1 1
2 1
2 1
1 2
2 2
1 1
1 2
1 1
2 1
1 1
2 2
2 2
1 2
1 1
2 2
2 1
1 1
2 1
1 1
2 1
1 2
1 2
1 2
1 1
1 2
1 1
1 2
2 2
2 2
1 2
1 1
2 1
2 1
1 1
1 1
1 2
2 2
1 1
2 2
2 2
1 1
2 2
1 2
1 2
2 1
1 2
2 2
2 1
2 2
2 1
2 2
2 1
2 1
1 1
1 2
2 1
1 1
1 2
2 1
1 2
1 2
1 2
1 1
2 1
1 1
2 1
1 2
2 2
2 2
2 2
1 2
1 2
2 2
2 2
1 2
1 2
2 1
1 1
2 1
1 2
1 2
1 2
2 1
1 1
1 1
2 1
1 2
1 2
2 1
1 1
1 1
2 2
1 1
1 2
1 1
2 1
2 1
2 1
1 1
2 2
2 2
1 2
2 2
2 1
1 1
1 1
1 1
2 2
1 2
1 2
2 2
1 2
2 2
1 1
2 1
1 1
1 2
1 1
1 1
2 2
1 1
2 1
2 1
1 2
1 1
2 1
2 1
2 2
2 1
2 2
1 2
1 2
2 2
1 1
2 2
2 2
1 1
1 2
2 2
1 2
1 1
1 2
2 2
2 2
2 2
1 1
2 1
2 1
2 2
2 2
1 2
2 1
1 1
1 1
1 2
2 1
1 1
2 1
1 2
2 1
2 1
2 2
1 2
1 2
1 1
1 1
2 2
1 1
1 1
1 1
2 2
2 2
2 2
1 2
1 2
2 2
1 1
1 2
2 1
2 2
1 1
1 1
1 1
2 1
2 2
2 1
1 1
2 1
1 1
1 2
2 2
1 2
1 1
1 2
2 2
2 2
1 1
1 2
2 1
1 2
1 1
1 1
2 1
2 1
2 2
2 2
2 2
2 2
2 1
2 2
2 1
1 2
2 2
2 1
2 2
2 2
2 2
1 1
1 2
1 2
2 1
1 1
2 1
1 1
2 1
2 2
2 2
1 2
2 1
2 2
2 2
2 2
1 1
1 2
2 2
1 2
1 2
1 2
1 2
2 1
2 2
2 1
1 1
1 1
1 1
2 2
2 2
1 2
1 2
2 2
2 2
2 1
1 1
1 1
1 1
1 1
1 2
1 1
1 2
2 1
1 1
2 1
2 2
1 2
1 2
1 1
1 1
2 2
1 1
1 2
2 2
2 1
1 1
2 1
2 2
2 2
2 1
2 2
1 1
2 1
2 2
2 2
1 2
2 1
2 1
2 2
2 2
1 1
1 2
2 1
2 1
2 1
2 1
1 1
2 2
2 1
2 2
2 1
1 1
1 1
2 1
1 2
2 2
1 2
2 1
2 1
1 2
2 2
1 2
1 2
2 2
2 2
1 1
1 2
2 1
2 2
2 1
2 2
1 2
2 2
2 1
1 2
1 1
2 2
1 2
2 2
1 2
2 2
2 2
2 2
1 1
2 2
1 2
2 1
1 2
2 1
1 2
2 1
1 1
1 2
1 1
1 1
1 2
1 1
2 1
2 1
2 2
2 2
2 2
1 2
1 2
2 1
2 1
2 1
1 2
1 1
2 1
1 1
2 1
1 2
2 1
2 1
1 1
2 2
1 1
1 1
1 1
2 1
2 2
2 1
1 1
2 1
1 1
1 1
1 2
1 1
1 1
2 1
2 2
1 2
2 2
1 1
1 1
2 1
1 2
1 2
2 2
2 1
1 2
1 1
1 2
2 1
2 2
1 2
1 1
1 2
2 1
2 2
1 2
1 2
2 1
2 1
2 2
2 1
1 1
1 2
1 1
2 2
1 1
2 1
1 2
1 2
1 2
1 1
2 2
2 1
2 1
1 1
2 1
1 1
2 1
2 1
2 1
2 2
1 1
1 2
2 2
2 1
2 2
1 1
2 1
2 1
1 2
2 1
2 1
2 2
1 1
1 2
2 1
2 1
1 1
1 2
2 2
2 1
2 1
2 2
2 1
1 1
1 1
2 1
2 1
1 1
2 1
1 1
1 2
2 2
1 1
1 2
1 1
2 1
2 1
2 2
1 1
2 1
2 1
2 1
2 1
2 1
2 1
1 2
2 2
2 1
1 1
2 1
1 2
1 2
2 1
1 2
1 2
2 2
2 1
2 2
2 2
2 2
1 2
1 1
2 1
1 2
2 1
2 1
1 2
2 1
1 2
2 2
2 1
2 1
1 2
2 2
2 2
1 1
2 2
2 2
1 1
1 2
1 1
2 1
2 2
1 1
1 2
1 1
1 1
2 1
1 1
2 2
1 2
2 1
2 2
2 1
2 1
2 1
1 1
1 2
2 1
1 2
2 2
1 2
1 1
1 2
2 1
2 2
2 1
1 1
1 2
1 1
1 2
1 2
1 2
2 2
2 2
2 2
1 1
2 1
2 2
2 2
2 1
1 1
1 2
2 1
2 1
1 1
1 1
1 2
2 2
2 1
1 2
2 1
1 2
1 1
2 1
2 2
2 1
2 2
1 2
2 1
1 2
1 2
1 2
2 1
2 1
1 1
1 2
1 1
1 1
1 2
2 2
2 1
2 2
1 2
2 1
2 2
1 1
1 1
1 1
2 2
2 2
1 2
1 2
1 1
2 2
1 1
2 2
1 2
2 1
1 2
1 1
1 2
1 1
2 1
2 2
1 2
2 1
2 1
1 2
2 2
2 2
2 1
1 2
1 1
1 1
1 2
1 1
1 1
2 1
2 1
2 1
1 1
2 1
1 1
2 2
2 1
2 2
1 2
2 2
2 1
1 2
1 2
1 2
2 2
1 1
2 2
2 1
1 2
2 2
2 1
1 2
2 2
2 1
2 2
1 2
2 1
2 1
1 1
1 2
1 1
1 2
2 1
1 2
1 2
1 1
2 2
2 1
1 1
2 2
1 1
1 1
2 2
2 1
2 1
1 2
1 2
2 2
1 1
2 2
1 2
2 1
2 2
1 1
1 1
1 1
2 2
2 2
1 1
2 1
1 2
2 2
2 1
2 2
2 1
1 1
1 1
1 1
1 2
1 2
2 1
1 1
1 2
1 1
1 1
2 1
2 1
1 2
2 1
1 2
2 1
2 1
2 2
1 2
1 1
2 2
2 1
1 2
1 2
2 1
2 2
1 2
1 2
2 2
1 1
2 1
2 2
2 1
2 1
1 2
2 2
2 2
2 1
1 1
1 2
1 1
2 1
2 2
1 2
1 1
2 1
1 2
1 1
1 2
1 1
2 1
2 2
2 1
2 2
1 2
1 2
1 1
2 2
2 1
1 1
2 2
1 1
1 2
2 1
2 2
2 2
1 1
1 1
1 2
2 2
2 1
2 2
1 1
1 1
2 1
1 1
2 1
1 1
1 2
2 2
1 2
1 2
2 2
1 2
2 1
2 1
1 2
2 2
2 1
2 2
1 1
2 2
1 1
1 1
2 1
2 1
1 1
1 2
2 2
1 1
1 2
1 1
2 2
2 2
2 1
2 1
2 1
2 2
1 2
2 1
1 1
2 2
1 1
2 1
1 1
2 1
2 2
1 1
1 2
1 2
1 2
2 2
2 2
1 2
1 1
2 2
1 1
1 2
2 2
2 1
1 1
1 2
2 2
1 1
2 1
2 2
1 2
2 1
1 2
1 1
2 2
2 1
2 2
1 1
1 1
2 2
2 1
2 2
1 1
1 1
1 1
2 1
2 1
2 2
2 1
1 1
2 2
2 1
1 2
1 1
1 1
2 1
2 2
1 1
1 1
1 1
1 1
2 1
1 1
1 2
1 1
2 2
2 1
2 2
1 1
2 2
1 1
2 2
2 2
1 1
1 2
1 1
1 1
1 2
2 2
2 1
1 1
1 1
2 2
2 2
2 1
2 2
1 1
1 1
1 1
2 2
1 1
1 2
2 1
1 2
2 1
1 2
1 1
2 1
2 2
1 1
1 1
2 2
1 1
2 2
2 1
1 2
2 2
1 1
2 1
1 1
2 2
2 1
2 2
2 2
2 1
2 2
2 1
2 2
2 1
2 2
1 2
1 2
1 1
2 1
1 1
1 2
1 1
2 1
1 1
1 2
1 1
1 2
2 2
1 1
1 1
2 2
1 2
1 2
2 2
2 2
1 2
1 1
1 2
2 1
2 2
2 2
1 1
2 2
2 1
1 2
2 2
1 1
2 2
1 1
2 2
1 2
1 2
1 2
2 1
1 2
1 1
1 1
2 2
1 1
2 2
2 2
2 2
2 1
2 1
2 2
1 1
2 2
2 2
1 1
1 2
1 1
2 2
1 1
1 2
2 2
1 1
2 1
1 1
1 2
2 2
2 2
1 2
1 2
1 2
2 1
1 2
1 1
1 2
2 1
1 2
1 2
1 1
1 1
1 1
1 1
2 2
1 1
1 1
1 2
1 1
1 2
2 1
1 1
1 1
1 1
2 2
2 1
1 2
2 2
2 2
2 1
1 1
1 1
2 1
2 1
2 2
2 1
2 1
2 1
1 2
2 1
1 1
2 2
2 2
1 2
2 1
1 1
2 2
2 1
1 2
2 1
2 2
2 1
1 1
2 2
2 1
1 1
1 1
1 1
2 2
2 2
2 1
1 1
1 1
2 1
1 2
1 1
2 1
2 1
1 1
1 2
2 2
1 2
1 1
1 2
2 1
1 2
2 2
2 1
1 2
2 2
2 2
1 1
2 1
2 1
1 1
2 1
1 1
2 2
1 1
1 2
2 1
2 1
2 1
2 2
1 1
2 2
1 1
2 1
2 1
2 1
2 1
2 1
2 1
2 1
1 2
1 1
1 1
1 1
2 1
2 1
2 2
2 2
1 2
1 1
1 1
2 2
2 2
1 1
1 1
2 2
1 1
1 2
1 2
2 1
1 2
2 1
1 2
1 2
2 2
1 1
2 1
1 2
2 2
1 1
2 1
1 1
1 1
1 2
2 1
2 1
2 1
2 1
2 1
1 2
2 1
1 2
2 2
2 1
1 2
1 2
2 1
2 2
2 2
1 2
1 1
1 2
2 1
1 1
1 2
1 1
2 2
1 2
1 2
1 1
2 1
1 1
2 2
2 2
2 1
2 1
1 2
2 1
1 1
1 1
2 2
1 1
2 1
2 2
2 1
2 1
1 2
1 2
2 2
1 2
1 1
1 1
1 1
2 2
2 2
1 1
2 1
1 2
1 1
2 1
2 2
1 2
2 1
2 1
1 2
2 1
1 1
1 1
1 1
1 2
1 1
1 1
1 1
1 2
2 1
1 1
1 2
1 1
1 2
2 1
2 1
2 2
1 1
2 2
2 1
1 1
2 1
1 1
2 2
1 2
2 2
1 1
2 2
1 1
1 1
1 1
1 2
1 1
2 1
1 2
2 2
1 2
2 2
1 1
2 2
1 2
2 1
1 2
1 1
2 2
2 2
1 1
1 2
2 2
2 1
1 2
2 1
1 2
2 2
2 1
1 2
2 2
1 1
2 2
2 1
1 1
2 1
2 2
1 2
2 1
1 1
2 2
2 2
2 1
2 1
1 2
1 1
2 1
2 2
1 2
1 2
1 1
2 2
2 1
2 2
1 1
2 1
2 1
1 2
1 2
1 1
2 1
2 2
1 1
1 2
2 2
2 1
2 2
2 1
1 1
1 2
2 1
1 2
1 1
2 2
1 1
2 2
2 2
2 1
2 1
1 2
1 1
2 1
2 1
1 2
2 1
2 2
2 2
1 1
1 1
1 2
2 2
1 1
1 1
1 1
1 1
2 2
2 2
2 2
1 2
1 2
1 1
2 1
1 1
2 2
1 1
1 2
1 1
1 1
1 1
1 2
1 1
1 2
2 2
2 1
1 1
2 2
1 2
2 2
2 2
1 1
2 2
2 1
1 1
1 2
2 2
2 2
1 1
2 1
1 1
1 2
1 1
2 1
2 1
1 1
2 2
2 2
1 1
1 2
2 2
2 1
1 1
1 1
2 2
1 2
2 2
2 1
2 1
2 2
1 2
2 1
2 1
2 2
2 1
2 2
2 2
1 2
2 2
1 2
2 1
1 1
2 2
2 2
2 2
1 1
1 2
1 1
1 2
1 1
1 2
2 1
2 1
1 2
2 2
2 2
1 1
1 2
2 2
1 2
1 1
2 1
1 2
2 1
2 2
2 1
1 2
2 2
2 1
2 1
1 2
1 1
1 1
2 2
2 1
1 2
2 2
1 2
1 2
1 1
1 2
2 1
2 2
1 2
2 1
2 1
1 2
2 2
2 2
1 1
1 1
2 1
1 1
1 1
2 2
1 1
1 1
1 2
1 2
2 1
1 1
2 1
1 2
2 1
2 2
2 1
2 1
2 2
2 2
2 1
2 2
1 1
2 1
1 1
1 2
1 1
2 2
1 2
2 2
2 2
2 1
2 2
2 2
1 1
1 2
1 2
1 1
2 1
1 2
2 2
2 2
1 2
1 1
1 1
2 1
1 1
1 2
1 1
1 2
1 2
2 1
1 2
1 2
1 1
1 2
2 2
1 1
2 1
1 2
1 2
1 1
2 1
2 2
2 2
2 2
1 1
2 1
2 1
1 2
1 1
2 1
1 1
1 2
1 1
2 1
1 2
1 2
2 1
2 1
1 2
1 2
1 2
2 2
1 1
2 2
2 1
1 2
1 2
2 1
2 2
1 1
1 2
1 1
1 1
1 2
1 1
1 1
2 2
1 1
1 2
1 2
2 1
1 1
2 1
1 1
1 1
1 1
1 2
2 2
1 2
1 2
1 2
1 2
2 2
1 2
1 2
2 2
1 2
1 2
2 2
1 1
2 2
1 1
1 2
1 2
1 2
1 1
2 2
2 1
2 1
2 2
2 1
2 2
1 2
1 2
2 1
2 2
1 1
2 2
1 1
1 2
2 2
2 2
2 1
1 2
1 2
2 2
2 2
1 1
2 1
2 2
1 1
2 1
1 2
2 1
2 1
2 1
2 2
1 2
2 1
1 2
1 2
1 2
2 2
1 1
2 2
1 2
1 1
2 1
2 1
1 2
2 1
1 1
1 2
2 2
2 1
2 1
1 1
2 2
1 2
1 2
1 2
2 2
2 1
2 1
1 1
2 2
1 1
1 2
2 2
2 2
1 1
2 1
2 2
2 1
2 1
2 2
1 1
2 1
2 1
1 2
2 1
1 2
2 1
1 2
1 2
2 1
2 1
1 1
1 2
2 2
1 2
1 1
1 2
2 1
2 1
2 1
1 1
2 2
2 2
2 1
1 2
2 2
2 1
2 1
1 1
2 2
1 2
2 1
2 1
1 2
1 1
2 1
1 1
1 1
1 1
2 2
2 2
1 1
1 1
1 1
2 1
1 1
2 1
1 1
2 1
2 1
1 1
2 2
1 1
1 1
2 2
2 2
2 1
2 1
2 1
1 2
1 2
2 2
2 1
1 1
1 1
2 1
1 1
2 1
1 1
2 2
1 1
2 1
2 1
2 2
1 1
1 2
1 2
2 2
1 2
1 2
2 2
2 2
2 2
2 2
1 2
1 1
2 2
1 1
2 1
1 2
1 2
1 1
1 1
2 1
2 1
2 1
1 2
2 2
2 2
2 2
2 1
1 1
1 2
2 2
1 1
1 1
2 2
2 2
2 2
1 1
2 2
1 1
2 2
1 1
1 2
2 1
1 1
1 2
1 2
1 2
2 1
2 2
2 2
2 2
2 1
1 2
2 2
2 2
1 1
1 2
1 1
2 1
1 1
2 1
1 1
1 1
1 2
1 1
1 1
1 2
1 2
2 1
1 2
2 2
1 2
1 2
2 1
1 2
1 2
2 1
1 1
1 2
2 2
1 2
1 1
1 1
1 2
2 2
1 2
1 2
2 2
1 2
1 2
1 1
2 2
2 1
1 2
2 1
2 2
1 2
1 1
1 1
1 2
2 2
1 1
1 2
2 2
2 2
1 1
1 2
1 1
2 2
2 1
1 1
2 1
1 2
1 2
1 2
1 2
2 2
1 1
2 2
2 1
1 1
2 2
1 2
1 1
2 1
1 1
2 2
1 1
1 2
2 1
1 1
2 1
1 1
1 2
2 2
1 1
1 1
1 1
2 2
1 1
1 2
2 1
1 2
1 1
1 1
2 2
1 2
2 2
1 2
1 1
1 2
1 2
2 2
2 2
2 2
1 2
2 1
2 2
2 2
1 2
1 2
1 1
2 2
1 2
2 1
1 2
2 2
2 2
2 1
2 1
1 2
1 2
1 2
1 1
2 2
1 1
1 1
1 1
1 1
1 2
1 1
1 2
2 1
2 2
2 1
1 1
1 2
2 2
2 2
2 1
2 1
2 2
2 2
1 1
2 2
2 1
2 2
2 1
2 2
2 2
1 1
1 1
2 2
2 1
2 2
1 1
2 1
1 1
2 1
1 2
2 1
1 2
1 2
2 2
2 2
1 2
1 1
2 2
1 2
2 1
1 1
1 1
1 2
2 2
2 2
2 2
2 1
1 2
2 1
2 2
2 1
1 2
1 2
1 1
2 1
1 2
1 2
2 1
1 1
1 2
2 1
1 2
1 2
2 1
2 1
2 1
1 2
1 1
1 2
2 1
1 1
1 1
1 2
1 1
2 1
1 2
1 1
1 1
1 2
1 1
2 2
1 2
1 2
2 2
1 1
1 1
1 1
1 1
1 1
1 2
2 1
1 2
2 1
1 2
2 1
2 2
2 1
1 2
1 1
2 1
2 2
1 2
2 2
1 2
1 1
1 2
2 1
1 2
1 2
1 2
2 1
2 1
1 2
1 1
2 1
1 2
2 2
1 1
2 1
1 2
1 2
1 2
1 1
1 1
1 1
2 1
2 2
2 2
2 1
1 2
1 2
1 2
2 1
2 2
1 1
2 1
2 1
2 2
2 1
2 2
2 2
2 2
1 2
1 1
2 2
1 1
2 1
2 2
2 2
2 1
2 1
2 1
1 2
2 1
2 2
1 2
1 1
1 2
1 2
2 2
1 2
1 2
2 2
2 2
2 1
2 1
2 1
2 1
1 2
1 1
1 1
1 2
2 1
2 1
1 1
1 2
2 1
1 2
1 2
2 1
2 1
2 2
2 1
2 1
2 1
1 2
2 1
1 1
2 1
1 1
1 1
1 2
1 1
2 1
1 2
1 2
2 1
1 2
2 2
1 1
1 1
2 2
1 1
2 1
1 1
1 1
2 1
2 1
2 2
1 2
1 1
1 2
2 2
2 1
2 1
2 2
1 1
1 2
2 2
2 1
2 2
2 2
2 2
1 2
2 2
2 1
2 1
2 1
2 1
2 1
1 1
2 2
2 1
2 2
2 2
1 2
2 1
1 2
1 1
1 1
2 1
2 2
2 2
1 1
1 1
1 2
2 2
1 1
2 2
2 1
2 2
2 1
2 2
1 2
1 1
1 1
2 2
1 1
2 2
1 2
2 1
1 2
1 2
1 2
2 1
1 2
1 1
2 2
2 2
1 1
2 2
2 2
1 2
1 2
2 2
2 2
2 2
2 1
2 1
2 2
1 1
1 1
2 1
2 2
2 2
2 1
2 1
2 2
1 2
2 1
2 1
1 1
1 2
2 2
2 2
2 1
2 1
1 2
2 1
2 2
2 1
1 2
1 2
1 1
2 1
2 2
1 1
1 1
2 2
1 2
2 2
2 2
2 1
1 2
1 2
1 1
2 2
1 2
1 1
1 2
1 2
2 2
1 2
2 1
1 1
2 2
1 2
2 1
2 1
2 1
2 2
1 1
1 1
1 2
2 1
1 1
1 1
1 1
2 2
1 2
1 1
1 2
1 2
2 2
1 2
1 1
2 2
1 1
1 1
2 1
2 1
1 2
1 1
2 1
2 2
1 2
1 2
2 2
1 1
2 2
1 2
1 1
1 2
1 2
2 1
1 1
1 1
1 2
2 1
1 1
2 2
1 1
1 1
2 2
2 1
1 1
1 2
1 2
2 1
1 1
1 1
1 2
2 1
1 2
1 2
1 1
2 1
1 1
2 2
1 1
2 2
1 2
1 2
2 1
1 1
2 1
2 1
1 1
1 1
2 1
2 2
2 2
1 2
2 1
2 1
1 2
1 2
1 2
1 1
1 1
1 1
2 2
2 1
1 2
2 1
2 2
1 2
1 2
2 1
1 2
2 1
1 1
1 2
1 1
1 1
1 2
1 1
1 1
1 1
1 1
2 1
1 1
2 2
2 2
1 2
2 2
2 1
2 1
2 1
2 2
1 2
2 1
2 1
1 1
2 2
2 2
1 1
2 1
2 2
2 2
1 1
2 1
1 1
1 1
1 2
1 1
2 1
2 1
2 2
2 2
2 2
1 2
1 1
1 2
2 2
2 2
2 1
1 2
1 1
2 2
1 1
2 1
1 2
2 1
1 2
1 2
2 2
1 1
1 2
2 1
2 1
1 1
2 1
1 1
1 1
2 1
2 1
2 2
2 2
2 1
2 1
1 2
2 2
1 1
1 2
2 1
2 2
1 1
2 1
2 1
1 1
2 2
1 1
2 1
2 1
2 2
1 2
2 1
2 2
1 2
2 1
1 1
1 2
2 1
1 1
1 1
1 1
1 2
2 1
2 2
2 1
1 1
1 2
2 1
2 1
2 1
1 2
2 2
1 2
1 1
1 2
1 1
2 1
1 1
1 1
1 1
2 2
1 2
2 2
1 2
2 2
1 2
2 1
2 2
2 2
2 1
2 2
1 1
1 1
2 2
2 2
2 1
1 1
1 1
2 2
1 1
1 2
2 2
1 2
2 1
1 2
1 2
1 2
1 2
2 1
1 2
1 2
2 2
2 1
1 2
1 2
1 2
1 1
2 2
2 2
2 2
1 2
1 1
1 1
1 2
2 2
1 1
2 1
1 2
2 1
2 1
2 1
2 1
1 1
1 2
2 1
2 2
1 1
2 2
2 1
1 1
2 2
1 2
2 2
1 1
1 1
2 2
2 1
2 1
2 1
1 2
1 2
2 2
1 2
2 1
1 1
2 2
2 1
1 1
2 2
2 2
1 2
1 2
2 1
2 2
1 1
1 2
1 2
1 2
1 2
2 1
2 2
1 1
1 2
1 2
2 2
1 1
2 1
2 1
2 2
1 2
2 1
1 2
2 2
1 2
2 1
2 1
2 1
1 2
1 2
2 2
1 1
2 2
2 2
2 1
1 1
1 2
2 2
2 1
1 2
2 1
1 2
2 2
1 1
1 2
1 1
1 2
2 1
2 1
1 2
1 1
1 2
2 1
2 1
1 1
1 1
2 1
2 2
2 2
2 2
1 2
1 1
1 1
1 2
2 2
1 2
1 2
1 2
1 2
2 1
1 1
1 2
1 1
1 2
2 2
2 1
2 1
1 2
2 1
1 2
2 1
2 2
1 1
1 1
1 2
2 1
2 1
1 2
2 1
1 1
1 2
2 1
2 2
1 1
2 1
1 1
2 1
1 1
1 1
2 2
2 2
1 2
2 2
1 2
1 2
1 1
2 2
2 1
1 1
2 2
1 2
1 1
2 2
1 1
1 2
1 1
1 2
1 1
1 2
1 1
1 2
2 1
2 2
1 1
1 1
2 2
1 2
1 1
1 1
2 2
1 2
2 1
2 1
1 2
2 2
2 2
2 1
2 1
2 1
2 2
2 2
1 1
2 1
2 2
1 2
1 1
2 1
2 2
2 2
2 1
2 1
1 2
2 2
1 1
2 2
2 2
2 1
2 2
2 1
1 2
1 2
1 1
2 2
1 2
1 1
1 2
1 2
2 2
1 2
1 1
1 1
2 2
2 1
2 1
2 1
1 1
1 2
1 1
1 1
2 1
1 2
1 1
1 2
2 2
2 2
2 1
1 1
1 1
2 2
2 1
2 1
2 1
1 1
1 1
1 1
2 2
1 1
2 2
1 1
2 2
1 2
2 2
2 1
2 2
1 1
2 1
2 2
1 1
2 1
2 1
2 2
2 1
2 1
2 1
1 1
1 2
1 2
1 1
2 2
2 1
1 2
2 1
2 2
2 1
1 1
2 2
2 1
2 2
1 1
1 1
1 2
1 1
1 1
2 1
1 1
2 2
1 2
2 2
2 2
1 1
2 2
1 2
1 1
2 2
1 1
1 1
2 1
2 1
2 1
1 1
1 1
2 2
2 2
1 2
1 2
2 2
1 2
1 1
1 1
1 1
1 2
2 2
2 1
1 2
1 2
2 1
2 1
2 1
1 2
2 2
1 1
1 2
2 2
2 1
1 1
1 2
1 2
2 2
2 2
1 1
2 2
1 2
2 2
1 2
2 2
2 2
2 2
1 2
2 2
1 1
2 2
2 1
1 2
1 2
2 2
2 2
2 2
1 2
2 2
2 1
1 2
1 2
1 1
1 1
1 2
2 1
1 1
2 1
1 1
2 1
2 2
1 2
1 1
1 1
2 2
2 2
1 2
1 2
1 2
1 2
1 2
1 1
1 1
2 2
1 1
1 2
2 2
1 1
1 2
1 2
2 2
1 2
2 2
1 1
1 2
1 2
1 1
2 1
2 2
1 1
1 1
1 2
1 2
1 1
1 2
2 2
1 2
2 2
1 2
1 1
1 1
2 1
1 2
2 1
2 1
2 1
2 2
2 1
1 2
2 2
2 1
2 2
2 2
1 2
1 1
2 1
2 2
1 1
1 1
2 1
2 2
2 1
1 2
2 1
1 2
1 1
1 2
1 1
1 2
1 1
2 2
2 1
1 1
1 2
1 2
1 2
1 2
2 2
2 2
1 1
1 1
1 2
1 2
1 1
1 2
1 2
2 2
1 1
2 1
1 1
2 1
2 2
1 1
1 2
2 1
2 1
1 2
1 1
2 2
1 2
2 2
1 1
1 2
1 1
1 1
2 1
2 2
2 1
2 2
1 2
2 1
2 2
2 2
2 1
2 1
1 2
1 2
2 2
2 2
1 2
1 1
2 2
2 1
1 2
2 1
2 2
2 2
2 2
2 1
1 2
2 2
2 1
2 2
1 1
2 1
2 1
1 2
2 2
1 1
2 1
2 2
1 1
1 2
2 2
1 2
1 1
2 2
2 1
1 2
1 2
2 2
1 2
1 1
1 2
2 1
2 1
2 2
1 2
2 1
1 2
1 2
1 1
2 2
1 1
1 1
1 2
1 1
2 1
1 1
2 1
2 2
2 2
1 1
2 1
2 2
1 2
1 1
2 1
2 2
1 2
1 2
2 2
2 1
1 1
2 1
1 2
2 2
1 2
1 2
2 1
1 1
2 1
1 1
2 1
1 1
1 1
1 1
1 1
2 2
2 2
1 2
1 2
2 2
2 2
1 2
2 2
1 2
1 1
1 2
1 2
2 1
2 1
1 2
2 1
2 2
1 2
1 2
2 2
2 2
2 1
2 2
2 1
2 1
1 2
1 1
1 2
1 2
2 1
1 2
1 2
2 2
2 1
1 2
1 1
1 2
1 2
2 1
2 2
1 2
1 2
1 1
2 1
1 1
1 2
2 2
2 2
1 2
1 1
2 2
1 1
1 1
1 2
2 1
1 2
1 2
1 2
2 2
1 1
2 1
2 2
2 2
1 1
1 1
1 1
1 2
2 2
1 1
2 2
1 1
1 2
2 1
1 1
2 1
1 1
1 1
2 2
2 2
2 1
1 1
1 2
1 2
2 1
1 1
1 2
2 1
2 1
2 1
1 1
2 2
1 2
2 2
2 1
2 2
1 2
2 2
1 1
2 2
1 2
1 2
1 1
2 2
2 2
2 1
2 1
2 2
1 1
1 1
2 2
2 2
1 2
2 2
1 1
1 2
1 1
1 2
2 2
1 1
2 1
2 1
2 1
2 1
2 1
2 2
2 1
2 1
1 2
1 1
1 1
2 2
2 2
2 2
2 1
1 1
1 2
1 1
2 1
2 2
2 2
2 2
1 1
1 1
1 1
1 1
2 2
2 1
1 1
2 2
2 2
2 2
2 1
2 2
2 2
1 1
2 1
2 1
2 2
1 1
1 2
2 2
1 2
1 2
1 2
1 2
1 1
1 1
2 1
1 1
2 1
2 1
1 1
1 1
1 1
2 2
2 1
1 1
2 2
2 1
2 1
2 2
1 1
1 2
2 2
1 1
2 1
1 1
1 2
1 1
1 2
2 2
2 1
2 1
2 2
2 1
2 2
1 1
1 1
2 2
2 2
2 1
2 2
1 1
1 2
1 1
2 2
2 1
2 1
2 2
1 2
1 1
1 2
2 1
1 1
2 1
1 2
1 1
2 1
1 2
2 2
2 1
1 1
2 1
2 1
1 2
2 2
2 2
1 1
1 1
2 2
1 2
1 1
2 1
1 1
1 2
1 1
1 2
1 1
2 2
2 2
1 2
1 2
2 2
1 2
2 2
2 1
2 1
1 2
2 1
2 2
1 1
2 2
2 2
1 2
1 1
2 2
2 2
2 2
1 2
1 1
2 2
1 2
1 1
2 2
2 1
1 2
2 1
2 1
2 1
2 2
1 2
2 2
1 1
1 1
2 2
1 2
1 1
2 2
1 2
2 1
1 1
2 2
1 1
2 1
2 2
2 2
1 2
1 1
2 2
1 1
2 1
2 2
2 2
1 1
2 2
1 2
1 2
1 1
1 1
2 2
2 2
2 1
1 1
2 1
2 1
1 1
2 1
2 1
1 1
2 1
1 2
1 1
2 2
2 1
2 1
2 1
2 1
1 2
2 1
1 2
2 1
2 1
2 2
1 1
2 1
2 2
2 2
2 1
1 1
1 2
2 2
1 1
1 2
2 2
2 1
2 1
1 2
1 2
1 1
1 2
2 1
1 1
2 2
1 1
2 2
2 1
2 1
1 2
2 2
2 1
2 1
1 2
1 2
1 2
2 2
1 2
1 1
1 2
1 1
2 1
1 2
1 2
2 2
2 1
1 2
2 1
1 2
2 1
2 2
2 2
2 1
2 1
2 2
2 2
1 1
2 1
2 2
2 1
1 1
1 2
2 2
1 2
1 1
2 2
2 2
2 2
2 1
1 2
1 1
1 2
2 1
1 2
2 1
2 1
1 2
2 1
2 1
2 1
1 1
2 2
1 2
2 2
1 1
2 2
1 2
1 1
2 2
1 1
2 1
2 2
1 1
2 1
1 1
1 2
2 1
1 2
1 1
2 2
1 1
2 1
1 2
2 1
1 2
2 2
2 2
1 2
2 2
2 1
1 1
1 1
2 2
1 1
1 2
2 1
2 1
2 2
2 2
2 1
2 1
2 2
1 1
1 1
1 2
2 1
2 1
1 2
1 2
2 2
1 2
2 2
2 2
2 1
1 2
2 2
2 2
2 1
2 2
1 1
1 1
2 1
2 2
1 2
1 2
2 1
2 1
1 1
1 2
2 1
2 1
1 2
2 1
1 2
2 2
2 1
2 2
2 1
2 1
2 1
2 2
1 1
2 2
1 2
2 1
2 1
2 1
2 1
1 2
1 1
1 2
2 1
2 2
1 1
2 1
1 1
1 1
2 2
2 2
1 1
2 2
2 2
2 2
2 2
1 1
2 1
1 1
1 1
1 1
1 1
1 2
2 2
1 2
2 2
2 1
2 2
2 1
1 2
1 1
2 1
1 2
1 2
1 2
1 2
2 1
1 1
1 1
1 1
2 1
2 1
2 1
1 2
1 2
2 1
1 1
2 1
1 2
1 1
2 1
1 1
2 1
2 1
1 1
1 2
2 1
2 1
2 2
2 1
1 2
1 1
1 2
2 1
2 2
2 2
2 2
2 1
1 1
1 1
1 2
1 2
2 1
2 1
1 2
1 1
2 2
2 1
1 1
1 1
2 1
2 1
1 1
1 1
2 1
1 2
1 1
1 1
2 1
2 1
2 2
1 1
1 2
1 1
1 2
2 1
2 1
1 1
2 1
2 1
2 1
1 2
2 2
2 2
2 2
1 1
1 1
1 2
1 1
1 2
2 2
1 1
2 2
1 2
2 2
1 1
2 2
2 2
2 2
2 1
1 1
2 2
2 2
2 1
1 2
1 1
1 2
1 2
1 1
2 2
1 2
1 1
2 2
2 1
2 2
2 1
1 2
1 1
1 1
1 2
2 1
1 1
1 1
1 1
1 2
2 1
2 1
1 1
1 1
1 2
2 2
1 2
1 2
2 2
2 1
1 2
2 1
1 1
1 2
2 2
2 1
2 1
2 1
1 1
2 1
1 2
2 1
2 1
2 1
1 2
1 2
1 1
2 2
2 2
2 1
2 1
2 2
1 2
1 2
1 2
1 2
1 2
1 1
1 1
1 1
2 1
1 1
2 2
1 1
2 1
2 1
1 2
2 1
1 2
2 2
1 1
2 1
1 1
1 2
1 2
1 1
2 2
2 2
2 1
1 1
2 1
1 2
1 1
1 1
1 1
1 1
2 1
1 2
2 2
1 2
2 2
1 2
1 1
1 2
2 1
2 1
1 2
1 2
1 1
2 2
2 2
2 2
1 1
2 2
2 1
2 2
1 1
2 2
2 2
1 2
2 2
1 2
1 1
2 1
1 2
2 1
2 1
2 1
1 1
2 2
1 1
1 2
2 1
2 1
2 1
1 2
1 2
2 1
1 2
2 2
2 1
2 1
1 1
2 1
2 1
2 2
1 1
1 2
2 1
1 1
2 1
1 1
1 2
2 1
1 2
2 1
1 1
1 1
2 1
2 2
2 1
2 2
2 2
1 2
2 1
1 1
1 2
1 1
2 2
2 1
1 1
2 2
2 1
2 1
2 1
1 1
2 1
1 2
2 1
2 1
2 1
1 2
1 2
1 2
1 1
2 1
2 1
1 1
1 1
1 2
1 1
1 1
1 2
2 2
2 2
1 1
2 1
1 2
1 1
2 1
2 1
2 1
1 2
2 1
1 1
1 2
1 1
1 2
1 1
2 2
2 2
2 1
2 2
2 1
1 1
1 2
1 2
1 2
2 1
2 1
1 1
1 2
2 1
2 2
1 2
1 2
1 2
2 2
2 1
2 2
2 2
2 2
1 1
1 1
1 2
2 2
1 1
2 2
1 2
1 1
1 1
2 2
2 1
2 1
1 2
2 1
2 1
2 1
1 2
1 2
2 1
2 1
1 1
1 1
1 1
1 1
2 2
2 1
1 2
1 2
1 1
2 2
2 2
1 1
1 2
2 2
2 1
1 1
2 1
2 2
2 1
2 1
1 1
1 2
1 2
2 2
1 2
2 1
1 1
2 2
1 2
1 2
1 1
2 2
1 2
1 2
2 1
2 2
2 1
2 1
2 2
2 2
1 1
1 2
1 1
1 2
2 2
2 1
1 1
1 1
2 1
1 2
2 2
1 1
2 2
2 2
1 1
2 2
2 2
2 1
1 2
1 1
2 1
2 2
1 1
1 1
1 2
1 1
2 2
1 1
2 2
2 2
1 1
2 2
1 2
1 1
2 1
2 1
1 1
2 1
2 2
1 1
1 1
1 1
2 2
1 2
1 1
2 2
2 2
2 2
2 2
1 2
1 2
1 2
2 2
2 1
1 1
2 1
1 1
1 1
2 1
2 2
1 1
1 1
1 1
1 1
2 2
1 1
2 1
2 1
2 2
2 1
1 2
2 1
2 2
1 1
1 2
1 2
2 2
1 1
1 2
1 1
1 2
1 2
2 1
1 1
2 2
2 1
2 1
1 2
1 1
1 1
2 2
1 2
1 2
1 1
2 2
1 1
1 2
1 2
1 1
1 2
2 2
2 2
1 2
2 1
1 1
1 1
2 1
2 2
1 1
2 1
2 2
2 1
1 2
1 1
2 1
2 1
1 2
1 2
1 2
2 1
2 2
1 1
1 1
2 1
1 2
1 2
2 2
1 2
1 2
2 2
1 1
2 2
1 2
1 1
2 1
1 2
1 2
1 2
2 1
1 2
1 2
2 1
2 2
2 1
2 1
1 2
1 1
2 1
2 2
2 2
2 2
1 1
2 1
1 1
1 1
2 1
1 1
2 1
2 2
2 1
2 2
2 1
1 1
1 2
2 2
1 2
1 2
1 2
2 2
2 1
2 2
2 1
1 1
2 1
1 2
2 2
1 1
2 2
1 2
1 2
2 2
2 1
2 1
2 1
2 1
2 2
1 2
1 2
1 2
1 1
2 1
2 2
1 1
1 1
1 1
1 2
1 1
1 1
2 1
2 1
2 2
2 1
1 2
1 2
1 2
2 1
2 1
1 1
2 2
2 1
2 1
1 2
1 1
2 2
1 1
2 2
1 1
1 1
1 1
1 1
2 2
1 1
1 2
1 2
2 1
1 2
1 2
1 2
1 1
2 2
2 1
1 2
2 2
1 1
2 2
2 2
2 1
2 1
1 2
1 2
1 2
2 2
2 2
2 1
1 1
2 1
1 2
2 2
2 1
1 2
1 1
2 2
2 2
1 1
2 1
1 1
1 1
1 2
2 2
2 1
2 2
2 1
2 2
1 2
2 2
1 1
1 2
2 1
2 1
2 2
1 2
1 2
1 2
1 2
2 1
2 2
2 1
2 1
2 2
1 1
2 2
2 2
1 2
2 2
2 2
1 2
2 2
2 2
2 2
1 2
2 2
2 1
2 1
1 1
1 1
1 1
1 2
2 2
1 2
2 1
1 2
2 2
1 1
2 2
2 2
1 1
1 1
2 2
2 2
1 1
2 1
2 1
2 2
2 1
2 1
2 2
1 1
1 2
2 2
2 2
2 2
1 1
2 1
1 2
2 1
2 1
2 1
2 2
1 2
1 2
2 2
1 1
1 2
1 1
1 2
2 1
1 1
1 2
2 1
2 2
1 1
2 2
2 1
2 2
1 2
2 2
1 2
1 1
1 1
1 1
2 2
2 1
1 1
2 1
1 1
2 1
2 1
2 1
1 1
2 1
2 2
1 2
2 2
2 1
2 1
1 1
1 2
2 2
1 1
2 1
1 2
2 1
2 2
2 1
1 2
2 2
2 2
2 2
2 1
2 1
1 1
2 1
2 2
1 2
2 1
2 1
1 2
1 1
1 2
1 2
1 2
2 2
1 2
1 1
1 1
1 2
1 1
2 1
1 1
2 1
1 2
2 1
1 2
1 1
2 1
1 2
1 1
1 1
1 1
1 2
2 1
1 2
1 1
2 2
1 2
1 1
1 1
2 2
1 2
1 2
1 1
1 1
1 2
1 2
1 2
1 1
1 1
2 2
1 2
2 1
2 2
2 1
2 2
2 2
1 2
2 1
2 1
2 1
2 1
1 2
2 1
2 2
1 1
1 2
1 1
1 2
1 1
2 2
2 1
2 1
2 2
1 1
2 2
1 2
2 2
1 2
1 2
2 2
2 1
2 1
2 2
2 1
2 2
2 2
2 2
1 2
1 2
2 2
2 1
2 1
2 2
2 1
2 1
2 2
1 2
2 2
2 1
1 1
1 2
1 2
1 2
2 2
1 1
2 1
2 2
1 1
1 1
2 2
1 2
1 1
1 1
2 2
2 2
1 1
1 1
2 1
1 1
2 1
1 1
1 1
2 2
2 1
1 1
1 2
2 1
2 2
1 2
1 2
1 2
1 2
1 1
1 2
2 2
1 1
1 1
1 2
2 1
2 2
1 1
2 1
2 2
2 1
2 2
1 2
1 2
1 2
1 1
1 2
1 1
1 2
1 1
2 2
1 1
2 2
1 2
1 2
1 2
1 2
2 2
1 2
2 2
1 2
1 2
1 1
1 1
2 2
1 1
1 1
2 2
1 2
1 2
1 1
1 2
2 2
2 1
1 2
2 2
1 1
2 1
1 2
1 2
2 1
2 2
1 1
2 1
2 1
2 1
2 2
2 2
2 2
1 1
1 2
2 1
1 1
2 2
1 2
2 1
1 1
2 2
1 2
1 1
2 2
1 1
2 2
1 1
2 1
1 1
2 1
2 2
2 1
2 2
1 1
1 1
1 1
2 2
1 1
1 1
1 1
1 1
2 1
2 2
2 2
1 2
1 1
1 1
1 1
2 1
1 2
1 2
1 1
2 2
2 2
2 1
2 2
2 2
1 2
1 2
1 1
2 1
2 1
2 2
2 1
2 1
2 1
2 2
1 2
1 2
1 1
2 1
1 1
1 2
1 2
1 2
1 1
2 1
1 1
1 1
1 2
2 2
1 1
1 1
1 1
1 1
1 1
1 1
2 1
2 2
1 2
2 1
2 1
2 2
1 1
1 1
1 2
2 2
1 1
2 1
1 1
1 1
2 2
1 2
2 1
2 1
2 2
1 2
2 2
2 2
1 2
2 2
1 1
1 2
2 1
2 1
1 2
1 1
1 1
2 2
1 2
2 1
1 1
2 2
1 2
1 2
1 2
1 1
1 2
2 2
2 2
1 2
2 2
2 2
2 1
1 2
1 2
2 2
2 2
1 1
2 1
1 1
1 2
2 1
2 1
2 1
2 1
2 1
2 1
1 1
2 1
2 1
2 1
1 2
2 2
1 1
1 1
1 1
1 1
2 1
2 1
2 1
2 1
2 1
2 1
2 2
1 2
2 1
1 2
1 2
1 2
2 2
2 2
2 1
1 1
2 1
2 1
1 2
2 2
1 2
2 1
2 1
1 2
1 2
1 1
1 1
2 1
2 1
1 1
1 2
1 1
2 2
2 2
2 2
1 2
1 2
1 1
1 1
2 1
1 1
2 2
2 2
2 2
1 1
1 2
2 1
1 1
1 2
2 1
2 1
2 1
2 2
1 2
2 1
2 1
2 1
2 2
1 1
1 2
1 2
1 2
1 2
1 1
2 2
2 1
1 1
1 2
2 2
1 1
1 1
2 2
1 1
2 2
1 1
1 1
1 2
1 2
1 2
1 2
1 1
2 2
2 1
2 2
2 2
1 1
1 1
1 1
2 1
2 2
1 2
1 1
1 1
1 1
1 2
2 2
1 1
2 2
1 1
1 2
2 2
1 2
2 2
1 2
1 2
1 2
1 1
1 1
2 2
1 2
2 1
2 2
1 1
2 1
2 1
1 2
1 2
2 1
2 1
2 1
2 1
2 2
2 2
2 2
2 1
2 2
2 2
2 1
2 2
2 1
2 2
1 2
2 1
1 2
2 2
1 2
2 2
1 2
2 1
1 1
1 2
2 1
2 2
2 2
1 1
2 1
2 1
1 2
1 1
1 2
1 2
2 1
2 1
1 1
1 2
2 2
2 1
1 2
2 1
1 2
2 1
1 1
1 1
2 1
2 1
2 2
1 2
1 2
2 1
2 2
2 1
1 1
2 2
2 1
1 1
1 1
1 1
2 1
2 2
1 1
1 2
2 1
2 1
1 1
1 1
1 2
1 2
2 2
2 1
2 2
1 1
1 1
2 1
2 2
1 1
1 1
1 1
1 1
2 2
1 1
1 2
2 1
1 1
2 1
1 1
1 1
2 1
1 1
2 1
1 1
2 2
2 2
1 1
1 1
2 1
2 2
1 1
2 2
2 1
2 1
2 2
2 2
2 2
1 2
1 2
1 1
1 2
2 1
1 1
2 2
2 1
1 1
2 2
2 2
1 2
1 1
2 1
2 1
2 2
1 1
1 2
2 2
2 2
2 2
2 1
2 1
1 1
1 2
2 2
2 2
1 1
1 2
1 2
1 1
2 1
1 2
2 1
2 1
2 2
2 2
2 2
2 2
2 2
1 1
2 2
2 2
1 1
2 1
1 1
2 2
2 2
1 1
1 2
1 2
1 1
1 1
1 1
1 1
2 2
2 1
1 1
1 1
2 1
1 2
2 2
2 1
2 2
1 1
1 1
2 1
2 1
2 1
2 2
1 2
2 1
1 2
1 2
1 1
2 1
2 2
1 2
1 2
2 1
2 1
1 1
2 2
1 1
1 1
2 2
2 1
1 1
2 2
2 1
2 1
1 2
1 1
1 2
1 1
2 2
1 2
2 1
1 1
2 1
1 2
1 1
1 2
1 1
1 2
1 1
2 2
2 2
1 1
2 2
1 1
2 1
1 2
2 1
2 1
1 2
2 1
1 1
1 1
1 2
2 1
1 2
1 1
1 1
1 1
1 2
1 1
1 1
1 2
1 1
2 2
2 1
1 1
2 2
2 1
1 1
1 2
1 1
1 1
2 1
2 1
1 2
1 1
2 2
1 2
1 1
2 1
2 1
2 2
2 1
1 2
1 2
2 1
2 2
1 1
2 1
1 2
2 1
2 1
1 2
1 1
1 2
2 2
1 1
2 1
1 2
1 1
1 2
1 2
2 2
1 1
1 2
1 2
1 1
1 2
1 1
1 2
2 1
1 1
2 2
1 2
2 2
1 1
2 1
1 2
1 2
2 2
2 1
1 2
2 1
2 2
2 1
1 1
1 2
1 1
1 1
2 1
1 2
2 1
2 1
1 1
1 2
2 2
2 1
2 2
2 1
2 2
1 1
2 1
1 1
2 1
1 2
2 2
2 2
2 2
2 2
1 1
2 2
1 1
2 1
1 1
2 2
2 1
1 2
2 1
1 1
2 1
2 2
2 2
2 2
2 2
2 1
2 1
1 1
2 2
2 1
1 1
2 2
2 1
1 2
1 2
1 2
2 2
2 1
1 1
2 1
1 1
1 2
2 1
1 2
1 1
2 2
2 1
2 2
2 1
2 1
2 1
2 2
1 2
2 1
2 2
1 1
1 2
2 2
2 2
2 1
1 1
2 2
1 1
1 1
1 1
1 2
2 1
2 1
2 2
1 2
2 1
2 2
2 1
1 2
2 2
1 2
2 2
2 2
1 1
1 1
2 2
2 1
2 1
2 1
1 1
1 2
2 2
1 2
2 1
1 1
1 1
2 1
1 1
1 2
2 1
2 1
2 1
1 2
1 2
2 1
1 1
2 2
1 1
2 1
2 1
1 2
1 1
1 2
2 1
2 1
1 2
2 1
2 2
1 2
1 1
2 1
1 1
2 2
1 2
1 1
1 2
2 1
1 1
1 2
2 1
1 2
2 1
1 1
2 1
2 2
1 2
1 2
2 2
2 1
2 1
2 2
2 1
1 1
2 1
1 1
2 1
1 2
2 2
2 1
2 2
2 1
2 1
1 1
2 2
1 1
1 1
1 1
2 1
2 1
1 2
1 1
2 1
1 2
1 1
1 2
1 2
1 1
1 2
2 1
1 2
1 2
2 1
1 2
2 1
1 1
2 2
1 2
2 2
2 1
2 2
1 2
2 2
1 2
1 1
1 2
2 1
1 2
2 2
2 1
2 2
1 2
1 2
2 1
2 1
2 2
2 2
1 1
1 2
2 2
2 1
2 1
1 2
2 1
2 1
2 2
2 2
1 1
2 2
2 2
2 2
1 2
1 1
1 1
1 1
2 2
2 2
1 2
2 2
2 1
1 1
1 2
2 2
2 2
1 1
2 1
1 1
1 2
2 1
1 1
1 2
1 2
1 2
1 2
2 1
1 1
1 1
1 1
2 2
2 1
2 2
2 1
2 1
1 2
2 2
2 2
2 2
1 1
1 1
1 2
2 1
2 1
2 2
1 2
1 2
2 1
2 2
1 2
1 1
1 2
2 1
1 1
1 2
2 2
2 2
2 1
1 1
2 1
1 2
2 2
1 1
2 1
2 1
1 1
2 1
2 1
1 1
1 1
1 1
1 1
2 1
2 2
1 1
2 2
2 1
1 1
2 1
1 1
2 2
1 1
2 2
1 2
2 1
1 1
1 2
1 2
2 1
1 2
1 2
1 1
2 1
2 2
2 1
1 2
1 1
1 1
2 2
1 2
1 1
2 1
1 2
1 1
1 1
2 1
1 1
1 1
2 1
2 2
2 2
2 1
1 1
2 1
2 1
1 2
1 1
2 2
1 1
2 1
1 1
1 2
2 2
2 1
1 1
2 2
1 1
2 1
1 2
2 2
2 2
2 1
2 1
2 1
1 1
2 2
2 1
1 1
2 2
2 2
1 1
1 1
1 1
2 1
2 1
1 1
1 1
2 1
1 2
1 2
1 2
2 2
1 1
1 1
2 1
2 1
1 1
1 2
2 2
2 2
1 2
1 1
2 2
2 2
1 1
2 2
2 2
1 2
2 2
1 1
1 1
2 2
2 1
1 2
1 1
1 1
2 2
1 2
1 2
1 1
2 2
2 1
1 2
1 2
2 2
1 2
1 2
1 2
1 2
2 1
2 2
1 2
2 1
1 2
1 2
1 1
1 1
2 1
2 1
1 2
2 2
2 2
1 1
1 1
1 1
2 1
1 1
2 1
2 2
2 1
1 2
2 1
2 2
2 1
2 2
2 2
2 1
1 1
1 2
1 2
1 1
1 2
2 2
1 2
1 1
1 1
1 1
1 1
1 1
2 2
1 2
2 2
1 2
1 1
2 1
2 2
1 1
1 2
1 1
2 2
1 2
2 2
1 1
2 2
2 1
2 2
2 2
1 1
1 2
2 2
1 1
1 1
2 1
1 1
2 1
2 2
2 2
1 2
1 2
1 1
1 2
2 1
2 1
2 2
2 2
1 1
2 2
1 1
2 1
2 1
1 2
1 2
2 1
1 2
2 1
2 2
1 1
1 1
2 1
2 2
2 1
2 1
1 1
2 1
2 2
2 1
2 2
2 1
1 1
2 2
2 2
2 1
2 2
1 1
2 1
1 2
2 1
2 2
2 1
2 1
2 1
1 1
2 1
1 1
1 1
1 1
2 2
2 1
2 1
1 2
1 2
2 2
2 2
1 2
1 2
1 1
2 1
2 1
1 2
2 2
2 1
1 1
2 1
2 2
1 2
1 1
2 1
2 1
2 2
2 1
1 1
2 1
2 2
1 1
1 1
2 1
1 1
2 1
2 2
1 2
2 1
1 2
1 2
2 2
1 2
2 1
2 2
2 2
2 1
1 1
2 2
1 1
1 1
1 1
2 2
2 2
2 2
1 2
1 2
2 2
2 1
2 1
1 1
1 2
1 1
2 2
1 2
1 2
2 2
1 1
1 1
2 1
2 2
2 1
2 2
2 2
2 1
1 1
1 1
1 1
2 1
1 2
1 2
2 1
2 2
1 2
1 1
1 1
1 2
1 2
2 1
2 1
2 1
1 2
1 1
2 1
1 1
1 2
2 2
1 1
2 1
1 1
1 1
1 2
2 2
2 2
1 1
2 1
1 1
1 1
1 2
2 1
1 1
1 2
1 1
2 2
2 2
2 2
1 1
2 1
2 2
1 2
2 2
2 2
1 2
2 2
2 2
1 2
2 2
2 1
1 1
2 2
1 2
2 2
1 2
1 2
2 1
1 2
1 1
1 2
2 1
2 1
2 2
2 2
2 1
2 1
2 2
2 1
2 1
2 1
2 1
1 2
1 1
1 2
2 2
2 2
1 1
1 1
2 2
1 2
2 1
1 2
2 1
1 2
2 1
1 1
1 2
2 2
2 2
2 2
2 2
1 1
1 1
1 1
2 2
1 2
2 2
2 1
1 1
2 2
1 2
1 2
2 1
2 1
1 2
1 2
2 1
1 1
2 2
2 2
2 1
2 1
2 2
2 1
1 1
1 2
2 1
1 2
2 1
1 1
1 1
1 1
2 2
2 1
1 1
1 1
2 2
1 1
1 2
2 1
1 2
1 1
2 2
1 2
2 1
1 2
2 1
1 1
1 2
1 1
1 2
1 1
2 2
1 2
2 1
1 1
1 2
2 2
1 1
1 2
2 1
1 1
2 1
1 2
2 2
1 2
2 2
1 1
2 2
2 1
1 1
1 2
1 2
2 1
1 1
2 1
1 2
2 2
2 1
2 1
2 2
1 1
1 1
2 2
2 1
1 1
2 1
2 1
2 1
2 1
2 2
2 1
2 1
1 1
1 1
2 2
1 1
2 1
2 2
2 2
2 1
2 1
2 2
1 1
1 1
1 1
1 2
2 1
1 2
1 1
1 1
2 2
2 2
1 2
2 2
2 2
1 1
1 1
2 2
2 2
1 2
2 2
2 1
1 1
2 1
2 2
2 2
2 1
2 2
1 1
2 1
1 2
1 1
2 2
2 2
1 2
1 1
2 1
2 2
2 1
1 2
2 1
1 1
2 1
2 1
1 2
1 1
2 2
2 2
1 2
1 1
2 2
1 2
2 2
1 1
2 2
1 1
1 1
2 2
1 1
2 1
2 2
1 2
1 1
2 1
1 2
2 2
1 1
1 2
1 2
1 1
2 2
2 1
2 2
1 1
2 1
2 2
2 1
2 2
2 2
2 1
2 1
2 1
2 1
1 2
1 1
2 1
1 2
1 2
1 2
1 1
2 2
2 1
1 1
1 1
1 1
1 1
2 2
1 1
2 1
1 1
2 2
2 2
1 1
1 2
1 2
2 2
2 2
1 1
2 1
1 1
2 1
1 2
1 1
2 2
1 2
1 2
1 2
2 2
2 2
1 2
1 2
1 2
2 1
2 1
1 2
2 2
1 1
2 2
2 1
2 1
2 2
2 2
1 1
1 2
1 2
1 2
1 1
1 1
2 2
1 2
1 2
2 2
1 2
2 2
1 1
1 1
2 1
1 1
1 1
2 2
2 1
1 1
1 1
2 2
1 2
2 2
2 1
2 2
1 2
2 1
2 2
1 1
1 2
2 1
2 2
2 2
1 2
2 2
2 2
1 1
1 1
1 2
2 1
1 1
2 1
2 1
1 2
1 1
2 1
1 2
2 1
1 1
2 1
1 1
2 2
2 2
1 1
2 2
1 2
1 2
1 2
1 2
2 1
1 1
2 1
2 1
2 2
2 2
1 1
1 1
1 2
1 1
1 2
1 2
1 2
2 1
1 2
2 1
2 1
2 2
1 1
1 2
2 2
1 1
1 2
2 1
1 2
2 2
1 1
2 2
2 1
1 2
1 2
1 1
2 1
2 2
1 1
1 1
2 1
1 2
2 1
2 2
1 2
2 2
1 1
1 1
2 2
1 1
2 2
2 1
2 2
2 1
2 2
2 2
2 2
1 2
2 2
1 1
1 1
1 2
1 2
1 1
2 2
1 2
1 1
2 2
2 2
2 1
2 2
2 2
1 2
2 1
2 2
2 1
2 2
1 2
2 2
2 1
1 1
1 1
1 1
2 2
2 2
1 1
1 2
1 1
2 2
1 1
1 1
2 1
2 1
2 1
2 2
1 1
1 1
1 1
2 2
2 2
1 2
1 1
1 2
1 2
2 1
1 1
1 2
1 2
2 2
1 1
2 2
1 1
1 1
2 1
2 2
2 1
2 2
1 2
1 2
2 2
2 1
2 2
1 2
2 2
2 1
2 2
2 2
2 2
1 1
2 1
2 2
2 2
2 2
2 1
2 1
2 2
2 2
2 2
2 2
2 1
2 2
2 2
1 2
2 2
1 2
2 2
1 2
2 1
2 2
2 2
1 2
2 2
1 1
2 1
1 2
1 2
1 2
2 2
1 2
2 2
2 2
1 2
1 1
1 1
2 1
2 2
2 2
1 2
2 1
1 2
2 1
2 2
2 1
1 1
1 1
2 2
2 1
2 2
2 2
2 2
2 2
2 1
2 1
1 1
1 2
1 1
1 2
2 1
2 2
1 2
2 2
1 2
1 1
1 1
2 1
2 1
2 2
1 2
2 1
1 1
2 2
2 2
2 2
1 2
1 2
2 2
2 2
2 2
2 1
2 1
2 2
2 1
2 1
1 1
1 2
2 2
2 1
2 2
1 1
2 1
1 1
1 1
2 2
1 1
1 1
2 1
1 2
1 2
2 1
2 1
2 2
1 1
2 2
2 1
2 1
2 1
1 1
2 1
2 2
1 1
2 1
2 1
1 2
2 2
2 2
1 2
1 1
1 2
2 1
2 1
2 1
2 2
1 2
1 1
2 2
1 2
2 1
1 1
1 1
1 1
1 1
1 1
2 1
2 2
2 2
2 1
1 2
1 1
1 2
2 1
1 2
1 2
1 1
2 1
2 2
1 1
1 1
1 2
1 1
2 1
1 2
1 2
2 2
2 1
2 2
1 2
1 1
2 1
1 2
1 2
2 1
1 1
2 2
2 2
1 2
1 2
2 2
2 1
1 2
2 2
1 2
1 1
1 1
2 2
1 2
2 1
2 2
1 2
2 1
1 2
1 2
2 1
1 2
2 1
1 2
1 2
2 2
1 2
2 2
1 2
1 2
1 1
2 1
1 2
1 2
1 1
2 2
2 2
1 2
2 2
1 1
1 2
2 1
1 1
2 1
1 2
1 2
1 2
1 2
1 1
1 2
1 1
2 2
1 1
2 1
1 2
2 1
2 1
2 1
2 2
2 2
2 1
2 1
2 1
1 1
1 1
1 2
2 2
1 1
1 1
1 2
1 2
2 1
2 1
1 2
1 2
1 1
2 2
1 2
2 2
1 1
1 2
1 2
2 2
2 1
1 1
2 1
1 1
2 2
2 2
1 2
2 1
2 1
1 1
2 1
2 2
2 1
2 1
2 2
1 2
1 1
1 1
1 1
1 2
2 2
1 1
1 2
1 2
2 2
1 2
2 2
1 2
2 1
1 2
1 1
2 2
1 1
2 1
2 1
1 1
1 1
2 1
2 1
1 1
2 1
2 1
2 2
2 2
2 2
2 2
2 2
2 1
2 1
1 2
1 2
2 2
2 2
2 2
2 1
2 2
1 2
2 1
2 1
2 2
1 1
1 1
1 2
1 1
1 2
1 2
2 2
1 1
1 2
2 1
1 2
1 2
1 2
2 2
2 1
1 1
1 2
1 1
2 1
1 2
2 2
1 1
2 1
1 1
1 1
2 2
2 1
1 1
1 1
1 1
1 2
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 2
1 2
2 2
1 2
2 2
1 1
1 1
1 1
2 2
1 1
1 2
1 1
1 2
2 1
2 1
2 2
2 2
2 2
2 1
1 2
1 2
1 2
2 2
2 1
2 1
2 2
1 1
1 2
1 2
1 2
2 1
1 2
2 1
1 1
1 2
2 1
1 2
2 1
1 1
2 1
1 2
2 1
1 1
1 1
1 1
1 1
1 1
2 2
2 2
2 2
1 1
1 1
1 1
2 2
2 2
1 2
1 1
2 1
1 2
1 2
1 1
1 1
1 1
2 2
2 1
1 2
1 2
1 2
1 2
2 2
2 1
2 1
2 2
2 2
2 2
2 2
1 1
1 2
2 1
1 1
2 1
2 1
1 2
1 1
2 2
1 2
1 2
2 1
2 1
1 2
1 2
2 2
1 2
1 2
1 1
2 2
1 2
1 1
2 2
2 2
2 2
1 2
1 1
1 2
2 1
2 1
1 2
1 1
2 1
1 2
1 2
1 2
1 2
1 2
1 1
1 1
2 2
2 1
1 2
1 2
1 1
1 2
1 2
1 1
1 1
2 2
1 1
2 1
2 2
2 1
2 1
2 1
2 1
2 2
2 2
2 2
2 1
2 2
1 2
1 1
1 1
1 1
1 1
2 2
1 1
2 2
1 1
2 2
2 1
2 1
1 2
1 2
1 2
1 1
2 2
1 2
2 2
2 2
1 1
2 2
1 2
1 2
2 2
2 2
2 1
1 1
1 1
2 2
2 2
1 1
2 1
1 1
1 2
2 1
1 1
2 1
2 1
1 2
1 1
1 1
1 2
1 1
1 2
1 1
1 1
2 1
1 2
1 1
1 2
2 1
2 2
1 1
2 2
2 1
1 2
1 1
2 1
2 2
2 1
2 2
2 2
2 2
1 1
2 2
1 2
2 1
2 2
1 2
2 1
2 1
2 1
1 2
2 2
2 2
1 1
1 1
1 2
2 2
1 2
2 1
2 2
1 2
1 1
1 1
2 1
1 1
1 1
1 2
1 1
2 1
2 2
1 2
1 2
1 1
1 2
1 2
1 2
2 1
2 2
1 2
1 1
1 2
2 1
1 1
2 1
2 1
2 2
2 1
1 2
1 1
2 1
2 2
1 1
1 1
2 2
2 1
2 2
2 2
1 2
2 2
2 2
2 1
2 1
2 2
1 2
2 2
2 2
2 1
2 2
1 1
2 1
2 1
2 1
2 1
1 1
2 2
1 2
2 2
2 2
1 1
2 2
2 2
2 1
1 1
2 2
2 1
1 1
2 2
1 1
1 1
2 1
2 1
2 1
1 1
2 1
1 2
1 2
1 2
2 2
1 2
1 1
2 2
2 1
1 2
1 2
2 2
1 1
1 2
2 1
2 2
1 1
1 2
2 1
2 2
2 2
1 2
2 2
1 1
1 1
1 1
1 2
2 2
2 1
2 1
2 2
1 1
1 1
1 1
1 1
2 1
2 1
2 1
1 2
2 2
1 2
1 2
1 1
2 2
1 2
2 1
2 2
1 1
1 1
2 2
1 1
2 2
1 2
2 2
2 1
1 2
2 2
2 1
2 2
1 1
1 2
1 2
1 1
1 1
2 2
2 1
2 2
1 1
1 1
1 1
2 2
2 2
2 1
1 1
1 1
1 2
1 1
1 1
2 1
1 1
2 2
2 1
2 2
1 1
2 1
1 2
2 2
2 1
2 2
1 2
2 1
2 2
2 2
2 2
2 1
2 2
1 2
1 1
1 2
1 2
1 1
1 1
2 1
2 1
1 1
1 1
1 1
1 2
1 1
1 2
1 1
1 2
1 2
1 1
2 2
2 2
2 1
1 2
1 2
1 1
1 2
2 1
1 2
2 2
1 2
2 2
1 2
2 1
2 2
2 2
2 1
2 2
1 1
1 1
1 2
2 1
1 2
1 2
2 1
2 2
1 2
2 2
2 1
2 1
2 1
1 2
1 2
1 2
1 2
2 2
2 2
1 2
2 2
2 2
1 2
2 2
2 1
1 1
1 2
1 2
1 1
1 1
2 1
1 2
2 1
1 1
2 2
2 1
1 1
2 2
1 1
2 1
1 2
1 1
2 2
1 1
1 2
2 1
1 2
2 2
2 1
2 2
2 2
2 2
1 1
2 2
2 1
2 2
2 2
2 2
1 1
1 2
2 1
2 1
1 1
1 1
2 2
1 2
1 1
2 1
2 1
1 2
2 2
2 2
1 2
2 1
1 2
1 1
1 2
2 1
2 2
1 2
1 1
1 2
2 1
1 1
1 1
1 2
2 1
1 2
1 1
1 1
2 2
2 2
1 2
2 2
1 1
1 1
1 2
1 2
1 2
2 2
2 1
2 1
1 1
2 1
1 1
1 1
1 2
2 1
2 1
1 1
2 1
1 1
1 2
2 2
1 1
2 2
1 1
2 1
1 2
1 1
2 1
1 1
1 2
2 1
1 2
1 1
2 2
1 2
2 2
2 2
2 2
2 2
1 2
2 1
1 2
1 1
1 2
2 1
1 1
1 2
1 2
2 2
1 1
2 2
2 1
2 2
1 2
1 2
2 1
1 2
2 1
1 2
1 1
1 1
2 2
2 2
1 1
2 1
2 2
2 1
2 2
2 1
2 2
1 1
1 1
1 1
2 1
1 2
2 1
2 1
2 2
2 2
2 2
2 2
1 2
1 2
2 1
1 1
2 1
1 1
2 2
2 2
2 2
1 2
2 1
2 2
1 2
1 1
2 2
1 2
1 2
1 1
1 2
1 1
1 2
1 2
1 1
2 2
2 1
2 2
2 2
2 1
2 1
2 1
2 1
1 1
2 2
2 1
2 2
1 2
1 2
2 1
2 1
1 2
1 2
2 2
1 2
2 2
2 2
1 1
1 2
1 2
1 1
2 1
2 1
1 2
1 1
2 1
1 1
2 1
2 2
2 1
2 2
2 1
1 1
2 1
1 1
2 2
2 2
1 1
2 2
1 2
2 1
2 1
2 1
2 2
1 1
2 2
2 1
2 2
2 1
2 1
2 1
2 2
1 2
1 1
2 1
2 1
1 1
2 2
1 1
2 2
2 2
1 2
1 1
1 2
2 2
1 1
2 2
2 1
2 2
2 1
2 1
2 1
2 1
2 1
2 1
2 1
2 2
2 2
1 2
2 2
2 1
2 2
1 2
1 2
1 1
2 1
2 2
2 2
2 1
1 1
1 1
1 1
2 2
1 2
1 1
1 1
1 2
2 1
1 1
1 2
1 2
2 2
2 1
1 1
2 2
2 1
2 2
2 2
2 2
2 1
2 1
1 2
1 2
2 1
2 2
1 1
1 1
1 2
1 2
1 2
1 1
2 1
2 2
2 2
1 2
1 2
2 2
2 1
1 1
2 2
2 1
2 1
2 1
1 2
1 2
1 1
2 1
1 1
1 1
2 2
1 2
1 1
1 1
2 2
1 1
1 1
2 1
1 2
1 2
2 2
2 1
1 2
2 2
1 1
1 2
1 1
2 1
2 1
2 1
2 2
1 2
1 2
1 1
2 1
1 1
1 2
2 1
2 1
2 1
2 2
1 1
1 1
1 1
1 1
1 1
2 1
2 1
2 1
2 1
1 1
2 2
2 1
1 1
2 2
1 2
2 1
2 2
2 2
2 1
2 2
1 2
1 2
2 2
1 2
2 1
2 1
1 2
1 1
2 1
1 1
1 1
1 1
2 2
2 2
1 1
2 2
1 1
1 2
2 1
2 1
2 2
2 2
1 1
1 1
1 2
1 1
1 1
2 2
2 2
1 2
2 2
2 1
1 1
2 1
2 1
1 1
1 1
2 2
2 2
1 1
2 1
2 2
1 1
2 1
1 2
1 1
1 1
1 2
1 2
2 2
1 2
2 1
2 2
2 2
2 2
2 1
2 1
2 1
2 1
1 2
2 2
1 1
2 2
2 1
1 1
1 2
1 2
2 1
1 1
1 1
1 2
2 1
2 1
2 1
1 2
1 2
1 2
2 1
2 1
1 2
1 2
2 2
1 1
2 1
1 2
1 1
2 1
1 2
2 1
2 1
1 2
1 1
2 2
1 2
1 1
2 1
1 1
1 2
2 1
1 2
2 1
1 1
2 2
2 1
2 2
1 2
2 2
2 1
1 2
1 1
1 2
2 2
1 1
1 2
1 1
1 2
1 1
1 2
1 1
2 2
1 1
2 1
1 2
2 1
2 1
1 2
2 1
1 1
1 1
2 2
2 2
2 1
1 2
2 2
2 1
2 1
2 1
2 2
1 2
1 2
2 1
2 1
2 2
1 2
1 2
2 1
2 1
1 2
1 2
2 2
2 2
1 1
1 1
1 2
1 1
2 1
2 1
1 2
2 2
1 2
2 2
1 2
2 1
2 1
2 1
2 2
2 1
1 2
2 2
1 2
2 2
1 2
2 2
2 2
2 1
2 1
1 2
1 2
2 2
2 1
2 1
1 1
2 2
1 1
2 2
1 1
2 2
1 2
2 2
1 2
1 2
1 2
1 2
1 1
1 1
2 2
2 1
2 2
2 2
2 1
1 2
1 2
2 2
1 1
2 1
1 1
1 1
2 1
2 1
2 1
1 2
1 2
2 2
2 1
1 2
2 2
1 2
2 2
1 1
1 2
2 2
2 2
1 1
1 1
2 2
1 2
1 1
2 2
2 2
1 1
2 2
2 2
2 1
1 1
1 1
2 2
2 1
2 1
1 1
2 2
1 1
2 1
2 1
2 1
1 2
1 2
2 2
1 1
1 1
1 2
1 1
2 2
1 2
1 1
1 2
2 2
1 1
1 2
1 1
1 1
2 2
2 2
1 1
2 1
2 2
1 2
2 1
2 2
2 2
2 2
2 1
1 2
1 2
1 1
1 1
2 1
1 1
2 2
1 1
1 2
1 1
1 1
1 2
2 2
1 1
2 1
2 2
2 1
2 2
1 2
1 1
1 1
2 1
1 1
1 2
1 2
1 1
2 1
1 1
1 2
2 2
1 1
1 2
1 2
1 2
2 1
1 2
1 1
2 1
1 1
2 2
2 1
1 1
2 2
1 2
1 1
1 2
2 1
1 2
2 2
1 2
1 1
2 2
1 2
2 2
1 2
1 2
1 2
1 2
1 2
2 1
1 2
2 1
2 1
2 1
1 2
2 2
2 1
2 2
2 1
2 2
1 1
2 1
2 1
1 1
2 2
2 1
2 2
1 2
1 1
1 2
1 2
1 1
1 1
2 2
2 1
1 2
2 1
1 2
2 1
1 1
2 1
1 1
1 1
2 1
2 2
2 1
1 2
2 1
1 2
1 2
2 2
2 1
2 1
2 1
1 2
1 2
2 2
2 2
2 1
1 1
1 1
2 1
2 1
1 2
1 1
2 2
2 2
2 2
1 1
1 2
2 2
1 1
1 2
1 2
1 2
2 2
1 1
1 1
2 1
2 1
1 2
1 2
2 2
1 2
1 2
2 2
1 2
1 1
1 2
1 2
1 2
2 1
2 2
2 1
2 1
2 1
1 1
1 1
2 2
2 1
1 2
1 1
2 2
2 1
2 1
2 2
2 2
1 1
2 2
1 2
2 1
1 2
1 1
2 1
1 1
1 2
1 1
2 1
2 2
2 2
1 1
1 2
1 1
1 1
1 2
1 1
2 2
1 1
1 1
1 2
2 1
2 1
1 1
1 2
2 2
1 2
1 2
1 1
1 1
1 2
1 2
2 2
2 1
1 2
2 1
2 1
1 2
1 2
1 1
2 2
1 1
2 2
2 2
2 1
2 2
1 1
1 2
2 2
1 2
2 2
1 2
1 2
1 2
2 1
2 2
2 2
2 1
1 1
2 1
2 1
2 2
1 2
1 2
2 2
1 1
1 2
1 1
2 1
2 1
1 1
1 1
1 1
1 1
2 2
1 2
1 1
1 2
2 1
2 1
1 1
1 1
1 1
2 1
1 2
1 2
2 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
2 2
1 1
2 2
1 1
1 1
2 2
1 1
2 1
1 1
2 2
1 1
2 2
2 2
2 1
2 2
1 1
1 2
2 1
1 1
2 1
2 2
1 2
1 1
2 1
2 2
2 1
2 1
2 1
2 1
2 1
2 1
1 1
2 1
1 1
1 2
1 2
1 2
1 1
1 1
1 2
1 2
1 1
1 2
2 2
2 2
2 2
2 2
2 2
2 1
1 2
1 2
1 2
1 2
2 1
1 2
1 1
2 1
2 1
2 1
2 2
2 2
2 2
1 1
2 2
2 2
1 1
2 2
1 1
2 2
2 2
1 2
1 1
2 2
1 2
1 1
2 1
1 1
1 1
1 2
2 1
2 1
2 1
2 1
1 1
1 2
1 2
1 2
1 2
2 2
2 2
1 1
2 2
2 1
1 2
2 2
2 2
2 1
1 1
1 1
1 1
1 1
2 2
1 1
1 1
1 1
2 2
2 1
2 1
2 1
1 2
1 1
1 1
2 1
2 1
2 2
2 1
1 2
2 1
2 1
1 2
2 1
2 2
1 1
2 1
2 1
2 1
2 2
1 2
2 2
1 2
1 2
2 1
1 1
2 2
1 1
2 1
1 1
1 2
1 1
1 2
2 1
2 1
2 2
2 1
1 2
1 1
2 1
2 2
1 1
1 2
1 2
2 2
1 2
1 2
1 1
2 1
2 1
1 1
1 2
1 2
2 2
1 2
2 1
2 2
2 1
1 2
1 2
1 2
1 2
1 2
2 2
1 2
2 2
1 1
1 1
1 2
2 1
1 2
1 2
2 2
2 1
2 1
1 2
1 1
2 2
2 2
2 2
2 1
1 2
1 2
2 2
1 1
2 2
2 1
1 2
1 2
2 1
1 2
1 2
2 1
1 2
2 1
2 2
2 2
2 2
1 1
1 1
1 1
1 1
1 1
2 2
1 2
1 1
2 1
2 2
2 2
2 1
2 2
2 1
2 1
1 2
2 1
2 1
1 1
2 1
1 1
2 2
2 1
1 1
2 1
1 1
2 2
2 1
2 1
2 1
1 2
1 1
2 2
1 1
1 2
2 1
1 2
1 1
2 2
1 1
2 2
1 2
1 1
1 1
1 1
2 2
1 2
1 2
2 1
2 2
2 1
2 2
1 1
1 2
2 1
1 1
2 2
2 2
2 1
1 1
1 1
1 2
2 2
2 1
2 1
1 1
1 2
2 2
1 1
1 1
2 1
1 2
2 2
1 1
2 2
1 2
1 1
1 2
2 1
2 1
2 2
1 1
1 2
1 1
1 2
1 1
2 2
1 2
1 2
2 1
1 1
1 2
2 2
1 1
1 1
2 1
1 2
1 1
1 2
1 1
1 1
1 2
2 1
2 2
1 1
1 2
2 2
1 2
1 2
1 1
1 1
2 1
1 1
1 2
2 2
1 1
1 2
2 2
2 2
2 2
2 2
2 1
2 2
2 1
2 2
1 2
2 2
2 2
1 2
1 2
2 1
2 1
1 2
2 1
1 2
1 1
2 1
1 2
1 2
2 1
2 2
2 2
2 2
1 1
1 1
1 2
1 2
1 2
2 2
1 2
1 1
1 1
2 2
2 2
2 1
2 1
2 2
2 1
1 1
1 1
1 2
2 2
1 2
2 1
2 1
2 2
1 1
1 1
1 2
1 2
1 1
2 2
1 2
2 1
1 1
1 2
2 1
1 2
2 2
1 1
2 1
2 1
2 2
1 1
1 1
1 2
1 2
2 2
1 2
1 1
1 2
2 1
1 1
1 1
1 1
1 1
1 2
2 1
1 2
1 1
1 1
1 1
2 1
1 2
2 2
1 2
2 2
2 2
1 2
1 2
1 1
1 1
2 2
1 2
1 1
1 2
2 2
2 1
2 2
1 2
1 2
2 2
2 2
1 2
1 1
1 1
1 1
2 2
1 1
1 2
2 2
2 2
1 1
2 1
2 1
2 1
1 1
1 2
2 2
2 1
1 1
1 2
2 2
1 2
1 2
2 2
1 2
1 1
2 1
1 2
1 1
1 2
1 1
2 1
2 1
1 2
1 1
2 2
2 1
1 2
2 1
2 2
1 1
2 2
1 2
1 1
1 2
1 2
2 2
1 2
2 2
2 2
1 1
1 1
2 2
1 2
1 2
1 1
2 2
2 1
1 2
1 2
2 2
1 1
1 1
2 1
2 1
2 1
1 2
1 1
1 1
2 2
2 1
2 1
1 1
1 1
1 2
2 2
2 1
2 2
2 2
1 2
2 1
1 2
1 2
1 2
1 1
2 2
2 2
2 1
1 1
2 1
1 2
2 1
2 2
2 2
2 1
1 2
1 2
1 1
2 1
2 2
1 2
2 1
1 1
2 2
1 1
2 1
1 2
2 2
1 1
2 2
2 2
1 1
2 1
2 2
2 1
1 1
2 2
2 2
1 1
2 2
2 1
2 2
1 1
2 1
1 1
1 2
1 2
2 2
1 2
2 1
1 2
2 1
1 1
1 2
2 1
2 1
2 2
2 2
2 2
1 1
1 1
2 1
2 1
2 1
2 1
1 2
1 1
1 2
1 2
2 1
2 1
2 2
2 1
2 1
2 1
1 2
2 2
2 2
1 2
1 2
1 1
2 1
2 2
2 1
2 2
1 2
1 2
1 1
1 1
2 1
1 2
2 1
2 2
2 1
2 1
2 1
2 2
2 2
2 1
1 1
1 2
2 2
2 2
1 1
1 2
2 1
1 1
1 1
2 1
1 1
1 1
1 2
1 2
1 1
2 1
1 2
1 2
1 2
1 2
1 2
2 2
2 1
1 2
2 2
2 1
2 2
1 1
1 2
1 1
1 2
2 2
2 1
1 2
1 1
1 1
2 2
1 2
2 1
2 1
1 1
2 2
1 2
2 2
1 1
2 1
2 2
1 1
2 2
2 2
2 2
1 2
2 2
1 2
2 2
2 2
1 2
1 1
2 1
1 1
2 2
1 1
1 2
1 2
1 2
1 1
2 1
1 1
1 1
1 2
2 2
2 1
1 2
2 2
1 1
2 1
1 2
2 2
1 2
2 2
2 1
2 2
2 1
1 1
1 1
1 1
1 2
2 2
1 1
2 1
1 1
1 1
1 2
2 1
2 1
1 2
2 1
1 2
1 2
1 2
1 2
2 1
2 2
2 1
2 1
1 1
2 2
1 2
2 1
2 1
1 2
1 1
1 2
2 2
1 2
1 2
1 2
1 1
2 1
2 2
1 2
1 2
2 1
1 2
2 1
2 2
1 1
2 2
2 2
1 1
1 1
2 2
2 2
2 1
2 1
2 1
1 1
1 1
2 1
1 2
2 1
1 2
2 1
2 1
1 1
2 1
2 2
2 1
2 1
1 1
1 2
2 2
2 2
1 1
2 2
2 2
2 1
1 2
2 2
1 2
1 2
1 1
1 2
2 2
2 1
2 2
2 1
2 1
2 1
2 2
1 2
2 2
1 1
1 2
2 1
1 1
2 2
2 1
2 2
2 1
1 1
2 2
2 1
2 2
1 1
2 1
1 1
2 2
1 2
2 2
1 1
1 2
2 1
1 2
2 1
1 1
2 1
2 1
2 2
1 2
2 2
1 2
2 2
2 2
1 1
2 1
1 1
2 1
1 1
1 1
2 1
2 1
2 1
1 2
2 2
1 2
2 1
1 1
2 1
1 2
2 2
1 2
1 1
1 1
1 1
1 1
2 1
2 1
1 2
1 2
1 2
2 1
2 1
2 2
1 2
2 1
1 1
2 1
2 2
1 2
2 2
1 1
1 2
1 2
2 1
1 1
2 1
2 1
1 1
1 1
2 2
1 2
1 1
1 1
1 2
1 1
1 1
2 2
1 1
1 2
1 2
2 1
1 2
1 2
1 2
2 1
1 2
2 2
1 2
1 1
2 2
2 2
1 1
2 2
1 2
2 1
2 2
2 1
1 1
2 1
1 1
2 1
2 1
1 1
1 2
1 1
1 2
2 2
2 1
2 2
1 1
1 2
1 2
2 2
2 1
1 2
2 2
2 2
1 2
1 1
1 1
2 1
2 1
2 2
2 1
2 1
2 2
2 2
1 1
2 2
2 2
1 2
1 2
2 1
2 1
1 2
2 1
1 2
2 2
1 2
1 1
1 2
2 2
1 2
2 2
1 2
2 2
2 1
2 2
1 1
1 2
2 2
2 2
1 2
2 1
2 2
2 2
1 2
2 1
2 1
2 2
1 2
2 1
1 2
2 1
1 1
2 2
1 2
2 2
1 2
1 1
1 2
1 2
2 1
2 1
2 1
1 1
2 2
1 2
2 1
2 1
2 2
2 1
2 2
1 1
1 1
2 2
1 1
1 1
1 2
1 1
2 2
1 2
1 1
1 2
2 2
2 1
1 2
1 1
2 1
2 2
2 1
1 2
1 1
2 2
1 1
2 2
1 1
2 1
1 1
2 1
2 2
2 2
2 2
1 1
2 2
2 1
1 2
2 1
1 1
1 1
1 2
2 1
2 1
1 2
2 2
1 2
1 2
2 1
1 2
1 1
2 2
2 1
2 1
2 2
2 1
2 1
1 1
2 1
2 1
2 1
1 2
2 2
2 2
2 2
2 2
2 1
1 1
2 1
1 1
2 1
1 2
1 2
1 1
1 1
1 1
1 1
1 1
2 1
1 2
2 2
2 1
1 2
1 1
2 2
1 1
1 1
2 1
2 1
1 2
2 1
1 1
2 1
1 2
2 2
2 2
1 1
2 2
1 2
1 1
1 1
2 2
1 2
2 2
1 1
1 1
2 1
2 1
1 2
1 1
1 1
1 1
1 1
1 1
2 2
2 1
2 1
1 1
1 2
1 1
2 2
2 1
1 1
1 2
1 1
2 2
2 2
2 2
1 1
1 1
1 1
2 2
1 2
1 2
2 2
1 1
1 2
2 1
2 1
1 2
2 1
1 2
1 2
1 2
1 2
2 1
1 1
1 2
2 2
1 1
1 1
1 1
2 2
2 1
1 1
2 1
1 1
1 1
2 2
1 2
2 1
2 2
1 1
1 2
1 2
2 1
1 2
1 1
2 1
1 1
1 1
2 2
2 1
2 1
2 2
1 2
2 1
1 1
2 2
2 1
1 2
2 2
2 2
1 2
1 1
1 1
1 2
1 1
2 1
1 1
1 2
2 2
2 1
2 2
1 2
1 1
1 2
1 1
1 1
1 2
2 1
1 1
1 2
2 2
2 1
2 2
2 1
1 2
2 2
1 1
1 2
1 1
1 2
2 2
1 1
2 1
1 2
1 2
2 2
2 1
2 1
2 2
2 2
1 2
2 1
2 1
2 2
2 1
2 1
2 2
1 2
1 2
2 2
1 1
2 1
1 1
2 1
2 1
1 2
2 1
2 2
2 2
1 1
2 1
2 1
1 1
2 2
2 1
1 2
2 2
2 2
1 2
2 1
1 1
2 2
2 1
2 1
1 1
2 2
2 2
1 2
2 1
1 2
2 1
1 1
1 2
1 1
1 1
2 2
1 2
1 2
1 2
2 1
2 2
2 1
2 1
2 1
1 2
2 1
2 1
1 2
1 2
1 2
1 2
1 2
2 2
2 1
2 2
2 1
2 2
1 2
2 2
2 1
2 2
2 2
2 1
1 1
1 1
1 1
1 2
2 2
1 2
2 1
2 1
1 2
2 1
2 2
1 2
1 1
2 1
2 1
1 2
2 2
1 2
2 1
1 1
2 1
1 1
1 2
2 2
2 1
2 1
2 2
2 2
2 2
1 1
2 2
1 1
1 2
1 2
2 2
2 2
2 1
1 2
1 1
1 1
1 1
1 1
1 1
2 2
1 1
1 1
2 2
2 2
2 2
1 1
2 1
1 1
2 2
1 1
2 2
1 2
2 1
2 2
1 2
1 1
2 2
2 1
2 2
2 2
2 2
2 1
1 2
1 2
1 2
2 2
2 2
1 1
1 1
1 1
2 2
2 2
2 1
2 1
2 2
2 2
1 1
2 2
2 2
2 2
1 1
2 2
2 1
1 1
2 1
1 1
2 1
1 1
2 2
2 2
1 1
1 2
2 2
1 1
2 2
1 1
1 1
1 2
2 2
2 2
1 1
2 2
2 1
1 2
2 1
1 1
2 2
2 1
1 2
2 2
2 2
1 2
2 2
1 1
2 2
1 1
1 2
1 1
2 1
1 1
1 1
1 2
1 2
2 2
1 2
2 2
2 1
1 1
1 2
2 1
1 2
1 2
1 1
2 1
1 1
2 2
2 1
1 1
2 2
2 2
1 1
1 1
1 1
2 1
1 1
1 1
2 1
1 1
2 2
1 2
1 1
1 1
2 2
2 1
2 2
1 1
2 1
1 2
1 1
2 2
2 1
2 2
2 2
1 1
2 2
1 2
1 1
1 1
2 1
2 1
2 1
2 2
2 1
1 2
1 1
2 2
2 2
1 1
2 1
1 1
1 1
2 2
2 1
1 1
1 2
2 2
2 2
2 2
2 1
2 1
1 1
1 2
1 2
1 2
1 2
2 1
2 2
1 2
2 2
1 1
2 1
2 1
2 2
2 2
1 1
2 2
1 2
1 1
1 2
1 1
2 2
1 2
1 1
1 2
1 2
1 2
2 2
2 2
2 1
1 1
2 2
2 1
2 1
1 2
2 1
1 1
2 1
2 1
2 2
1 2
2 1
1 2
2 2
1 1
1 2
1 2
1 2
1 1
1 1
1 2
1 2
2 2
2 1
1 2
2 2
2 1
1 2
1 2
1 2
2 2
1 1
2 2
1 1
2 1
1 2
2 1
1 2
2 2
1 2
2 2
1 2
2 2
2 1
1 1
2 1
2 1
1 1
1 1
2 2
1 1
1 1
1 2
2 1
1 2
2 2
1 1
1 2
1 2
1 2
1 2
2 2
2 2
2 2
1 2
2 2
1 2
1 2
2 1
1 1
2 2
2 2
1 2
2 1
2 2
1 1
1 2
2 1
1 2
1 1
1 2
2 2
1 1
2 2
1 1
1 1
2 2
1 2
2 2
2 1
1 1
2 1
2 2
2 2
1 1
1 1
1 2
1 2
2 1
1 2
2 1
1 2
1 2
1 1
1 1
2 1
1 1
2 1
2 2
1 2
1 1
1 2
2 2
2 1
2 2
1 2
2 2
1 1
2 2
2 1
1 2
2 2
1 1
1 1
1 2
2 2
2 2
1 2
1 1
1 2
2 2
1 2
2 2
1 2
1 1
2 1
1 2
2 1
2 1
1 2
2 1
1 1
2 1
2 1
1 2
2 2
1 1
2 1
1 1
1 1
2 2
1 2
1 1
1 1
2 2
2 1
2 2
2 1
2 2
1 1
2 2
2 1
1 2
1 1
1 1
2 2
1 2
1 1
1 1
2 2
1 1
1 1
2 2
2 2
1 2
1 2
1 2
2 1
1 1
2 2
1 2
1 1
1 2
2 2
1 2
2 1
1 2
2 1
2 2
1 1
2 1
1 2
1 2
2 2
1 1
1 2
2 1
2 1
2 1
2 2
2 2
1 1
2 1
2 1
1 2
1 2
2 1
2 1
2 2
1 1
2 2
2 1
1 2
2 2
2 1
2 2
1 2
1 1
2 2
2 2
1 2
1 1
2 2
1 2
2 1
2 1
2 2
2 2
2 1
1 1
2 2
1 2
1 2
1 2
2 2
2 2
2 2
1 2
2 1
2 2
1 2
1 1
1 2
1 1
2 2
1 2
2 2
2 2
1 2
1 1
1 1
1 2
2 2
1 2
2 1
1 2
2 2
2 1
2 1
1 1
1 2
1 1
2 1
2 1
1 2
2 1
2 1
2 1
1 2
2 1
1 2
1 2
2 2
1 1
1 1
1 1
1 2
1 1
1 1
1 2
1 1
1 1
1 2
2 2
2 2
1 2
2 1
2 2
2 2
1 1
1 2
1 1
1 1
1 1
2 2
1 1
1 1
1 2
1 1
2 1
1 1
1 2
2 2
1 2
2 2
1 2
2 2
2 2
2 1
1 2
2 1
1 1
1 1
1 1
2 1
2 1
2 1
2 2
2 1
1 1
1 1
1 2
2 2
2 2
2 2
1 1
1 2
1 1
1 2
1 2
2 1
1 2
1 1
2 2
2 1
2 1
1 1
1 2
2 2
2 2
2 1
2 2
1 1
2 1
1 1
1 2
1 2
2 2
2 1
2 2
1 2
1 2
1 1
1 1
2 2
1 1
1 2
2 2
1 1
2 2
2 1
2 1
1 1
1 2
2 1
2 1
2 1
2 1
2 2
2 1
1 2
2 1
1 2
2 1
1 2
1 1
2 2
2 2
2 2
1 2
2 2
2 1
1 1
1 1
2 1
1 2
2 1
1 2
1 1
2 1
2 1
1 2
2 1
1 1
1 2
1 1
2 1
2 2
2 1
1 2
1 1
1 2
2 1
1 2
2 2
1 2
1 1
2 2
1 2
1 2
2 2
2 2
2 1
2 1
1 1
1 2
2 2
1 2
2 1
1 1
2 2
2 2
1 2
2 2
2 1
1 1
2 1
1 2
2 1
2 2
2 2
2 1
2 1
1 1
1 1
2 1
2 1
2 2
1 1
1 2
1 2
1 1
1 2
2 2
1 2
1 2
1 1
2 1
1 1
1 2
1 1
2 2
1 1
2 2
2 2
2 2
2 2
2 1
1 1
2 1
1 1
2 1
1 1
2 2
2 1
1 2
1 1
1 2
1 2
2 2
1 2
2 1
2 2
2 2
2 2
1 1
2 2
1 1
2 2
1 2
1 1
2 1
2 2
1 1
2 1
2 1
1 2
2 1
1 1
1 1
1 1
2 2
2 2
1 1
2 1
1 1
1 1
1 1
1 1
1 2
2 1
1 2
2 2
1 1
1 1
2 1
2 2
1 2
1 1
1 1
1 2
1 1
1 2
2 1
2 1
2 2
1 1
2 1
2 2
2 1
2 1
2 2
2 2
1 1
1 1
2 2
1 2
2 2
1 2
1 2
2 2
1 1
2 1
2 2
1 2
1 1
1 1
1 2
2 2
2 2
1 1
1 1
1 1
2 2
1 1
2 1
2 2
2 2
2 1
1 2
1 1
1 2
2 2
2 2
2 1
1 1
2 1
2 1
2 1
1 1
1 2
1 2
2 1
1 2
1 1
2 2
1 2
1 1
2 1
1 2
2 2
2 1
1 1
2 2
2 2
2 1
1 2
2 2
2 2
2 2
1 2
2 1
2 1
2 2
2 2
1 2
1 2
1 1
1 1
1 2
1 2
1 1
2 1
2 1
1 2
2 2
1 2
2 1
2 2
1 2
1 2
2 2
2 2
1 1
2 1
1 1
1 2
1 1
1 1
2 1
1 2
2 2
2 2
2 2
2 2
2 1
2 2
1 1
1 2
1 2
1 2
1 1
1 2
2 1
2 2
2 1
2 1
1 1
2 2
1 1
1 1
1 2
2 1
1 1
2 1
2 1
2 2
1 1
2 1
2 2
2 2
2 1
1 1
2 2
2 2
2 2
2 2
1 1
2 2
2 2
2 2
1 2
1 1
2 1
1 2
1 1
1 2
2 2
2 2
2 2
1 1
1 1
2 2
1 2
1 2
2 1
1 2
1 1
2 2
2 2
1 1
2 2
1 1
2 2
1 2
1 2
2 2
1 1
1 2
1 1
2 2
1 1
2 1
2 1
2 1
1 1
1 1
2 2
2 2
1 2
1 1
1 2
1 1
1 2
2 2
2 1
1 2
1 1
1 1
2 2
1 2
2 2
1 1
2 1
2 1
1 1
1 1
2 1
2 2
1 1
2 1
1 1
2 1
2 2
2 2
2 1
1 1
1 1
1 2
1 1
2 2
1 2
1 2
1 2
2 1
2 1
2 2
2 2
1 2
1 2
2 2
2 2
1 2
2 2
2 1
1 1
1 1
1 1
1 1
2 1
2 1
1 2
2 1
1 1
2 1
1 1
1 1
1 1
1 2
1 2
2 2
2 2
1 2
1 1
2 2
1 1
1 1
2 1
2 1
1 1
2 1
2 1
1 2
2 1
2 1
2 1
2 2
1 2
2 2
1 1
1 2
2 2
1 1
2 1
2 1
1 2
2 2
1 2
1 2
1 2
2 2
1 2
1 2
2 2
1 1
2 2
1 1
2 2
2 2
2 2
1 2
2 1
1 2
1 1
1 2
2 1
2 2
2 1
1 1
2 1
2 2
1 2
2 2
2 1
2 2
2 1
1 1
2 1
2 2
1 1
2 2
2 2
2 2
2 2
1 1
2 2
2 1
1 1
1 1
2 1
2 2
2 1
2 1
1 2
2 2
1 1
2 1
2 2
1 1
1 1
1 2
1 1
1 1
2 1
1 1
2 1
1 1
1 1
2 1
1 1
1 1
2 2
1 2
1 2
2 1
2 1
1 1
2 1
1 1
2 2
1 1
1 2
1 1
2 1
1 2
1 2
2 2
2 2
1 2
2 2
1 2
1 1
1 1
1 2
1 1
1 1
1 1
2 1
2 1
1 1
2 2
1 1
2 1
1 1
2 1
1 2
1 1
1 2
1 2
1 1
1 2
2 1
2 1
2 2
2 1
2 1
2 1
1 1
2 2
2 2
1 2
1 1
1 1
1 2
1 2
1 2
2 2
2 1
1 1
2 2
1 2
1 2
1 2
1 1
1 2
2 1
1 2
2 2
1 1
2 2
1 2
2 1
2 1
1 2
1 2
2 1
2 2
2 1
1 2
1 1
2 2
1 1
1 1
1 1
2 1
2 1
2 2
1 2
1 2
1 2
2 2
2 1
2 1
2 1
1 2
2 1
1 2
2 2
1 1
1 2
1 1
1 2
2 2
2 2
1 2
2 2
2 1
1 1
2 1
1 2
1 2
2 2
1 1
2 2
1 1
1 2
2 1
1 2
2 1
1 1
2 1
1 2
1 2
1 1
2 1
2 2
1 1
1 1
1 1
2 1
2 2
1 2
1 2
1 1
2 2
2 2
2 1
2 2
1 2
1 1
2 2
2 2
1 2
2 1
1 2
2 2
1 1
2 1
2 2
2 1
2 1
1 1
1 2
2 1
2 2
1 2
2 2
1 1
2 1
1 2
2 1
1 2
2 1
1 1
1 1
1 2
2 1
1 1
1 2
1 2
1 1
2 2
2 2
2 2
2 1
2 1
2 2
2 1
1 1
2 2
1 1
1 1
1 1
1 2
2 2
2 1
2 1
2 1
2 1
2 1
2 1
2 1
2 2
2 2
2 1
1 1
1 1
2 2
1 1
1 2
2 2
2 1
1 1
1 2
1 2
1 2
1 1
1 2
1 1
2 1
2 2
2 2
1 2
1 1
2 2
1 2
1 2
1 2
1 1
2 1
1 2
2 1
2 2
1 2
2 2
2 1
2 1
2 1
1 1
1 1
1 2
2 1
2 2
1 1
2 2
1 2
2 1
2 1
1 1
2 2
2 2
2 1
1 1
1 2
1 1
2 1
2 1
1 1
1 2
1 1
1 2
1 2
1 2
1 1
2 2
1 1
2 2
1 2
1 1
2 2
1 1
2 2
1 2
2 1
1 2
2 1
1 2
2 1
2 1
1 2
1 2
1 2
1 2
1 2
1 2
2 2
1 2
1 2
1 1
2 2
2 1
1 2
2 2
2 2
1 1
1 1
1 1
2 1
2 1
2 1
1 2
2 1
1 2
1 1
1 1
2 2
2 1
2 1
2 2
2 1
2 1
2 2
1 2
2 2
2 2
2 2
2 1
1 2
2 1
1 2
1 2
1 1
1 2
2 1
1 2
2 1
2 1
1 2
2 1
2 2
1 1
1 2
2 2
2 1
1 1
1 1
1 1
1 1
1 2
2 2
2 1
2 1
1 1
2 1
2 1
1 2
2 1
2 1
2 2
1 2
2 2
2 2
2 2
2 2
1 1
2 2
2 2
1 1
1 2
2 2
1 2
1 1
2 1
1 2
1 1
2 2
1 1
1 2
1 2
2 1
2 2
1 2
2 2
1 1
1 1
1 1
1 1
1 1
2 2
2 2
2 2
2 2
1 2
1 1
2 2
2 1
1 1
1 1
1 2
2 2
2 1
1 1
2 1
1 2
2 1
2 2
2 2
2 1
1 1
2 2
2 1
1 1
1 2
2 2
2 2
1 1
1 2
1 2
1 2
2 2
2 1
2 1
2 1
2 2
1 2
1 2
1 1
1 1
1 2
1 2
1 2
2 2
1 2
2 1
2 1
1 2
1 2
1 1
1 2
1 2
1 1
1 2
2 2
1 2
1 2
2 2
1 2
1 2
2 1
1 1
2 2
1 2
1 1
2 1
1 2
1 2
2 1
1 2
2 1
2 1
1 1
2 2
2 2
2 1
1 1
1 1
1 1
1 1
1 1
1 1
2 1
2 1
2 1
1 2
1 2
2 1
2 1
2 1
2 2
1 1
2 2
2 2
1 1
1 2
1 1
1 1
1 2
2 1
2 2
1 1
2 1
1 2
1 1
1 1
2 1
2 1
2 2
1 2
2 1
1 2
1 1
2 2
2 2
1 1
1 2
2 1
2 2
1 1
1 2
2 1
1 2
2 2
2 2
1 1
2 2
2 2
2 1
2 2
2 2
2 1
2 1
2 1
1 1
2 2
2 2
1 1
1 2
1 2
1 2
1 1
1 1
1 2
1 1
2 1
1 2
2 1
2 1
1 1
1 2
1 2
2 2
2 2
2 2
1 1
2 2
2 2
2 2
2 1
2 1
2 2
2 1
1 1
2 2
1 1
1 2
1 2
2 1
2 2
1 1
2 2
1 1
2 1
1 2
1 1
2 1
1 2
1 1
2 1
1 1
2 1
2 2
1 1
2 1
1 1
1 2
2 2
2 1
2 2
1 2
1 2
1 1
2 1
1 1
1 1
2 1
1 2
1 1
2 1
1 2
2 2
1 2
1 1
1 1
1 1
2 1
2 1
1 2
1 1
2 2
2 2
2 1
1 1
1 1
2 2
1 2
1 2
1 2
2 1
1 2
1 2
2 1
2 2
1 2
1 2
2 1
2 2
2 1
2 1
2 1
1 2
2 2
2 1
1 1
1 2
1 2
1 2
1 2
2 2
1 1
1 2
1 1
2 2
2 2
2 2
1 1
2 1
1 1
2 1
1 2
2 2
2 2
2 1
2 1
1 2
1 1
1 2
1 1
2 2
2 2
1 2
1 1
1 1
2 1
1 1
2 2
1 1
1 1
2 1
2 1
2 1
2 2
1 1
1 1
2 1
2 2
1 2
2 1
1 2
1 1
2 2
1 1
2 1
2 1
1 2
1 1
2 2
2 1
1 1
1 2
1 2
2 1
1 2
2 2
1 2
1 2
1 2
2 2
1 1
1 2
2 1
2 1
2 2
1 2
1 2
1 1
1 1
2 1
1 1
2 1
1 1
1 2
2 2
2 2
2 2
2 1
2 2
2 1
1 2
2 2
1 1
2 2
1 1
2 1
1 2
2 2
1 2
1 1
1 1
1 2
1 1
2 2
1 1
2 1
2 1
1 1
2 1
2 1
2 1
1 2
1 1
1 1
1 1
1 2
1 1
2 1
1 1
2 1
1 2
2 2
1 1
1 1
1 2
1 1
2 2
2 2
2 2
2 2
2 1
1 2
2 1
1 1
1 2
1 1
2 2
2 1
1 2
2 1
1 2
2 1
1 1
1 2
1 2
1 1
2 1
2 2
1 1
2 1
1 2
2 1
2 1
2 1
1 2
2 2
1 2
2 1
2 1
1 1
2 1
1 2
2 1
2 2
2 2
2 2
1 1
2 2
2 1
2 1
1 1
1 2
1 1
1 2
1 1
1 1
1 2
2 1
2 2
2 1
1 2
2 1
2 1
1 2
2 2
2 1
2 2
1 2
1 2
1 2
2 2
1 2
2 1
2 1
1 1
1 1
2 2
2 2
1 1
2 1
1 1
2 1
2 1
2 1
1 1
2 1
1 1
1 1
2 2
2 2
2 1
1 1
1 1
1 1
2 1
2 1
1 2
2 1
1 2
1 1
1 1
2 2
1 2
2 1
2 2
2 1
1 1
2 1
1 1
1 2
1 1
1 2
2 1
2 1
2 1
1 2
1 1
2 2
1 1
1 1
2 2
2 2
1 1
2 2
1 1
1 1
1 1
2 2
2 2
2 2
2 1
2 1
1 1
2 1
1 2
2 2
1 1
2 2
2 2
1 2
1 1
2 2
1 1
1 1
1 1
2 1
1 1
2 1
2 1
1 1
2 1
2 1
1 1
1 1
2 1
1 2
1 1
2 1
1 1
1 2
1 1
2 2
1 2
1 1
1 2
2 2
1 1
1 1
1 2
1 1
2 1
2 1
2 2
1 2
1 2
2 1
2 2
1 2
2 2
2 2
2 1
1 2
1 1
1 1
1 2
1 2
2 1
1 1
1 2
1 1
1 2
2 2
1 1
1 1
1 1
1 1
2 2
1 1
2 1
2 2
1 2
1 1
2 1
2 2
2 1
2 1
1 2
1 1
2 1
2 2
1 2
2 2
2 2
1 2
1 1
2 1
2 1
1 2
2 2
2 1
1 2
2 2
1 2
1 2
2 1
1 1
2 1
1 2
2 1
2 2
1 1
2 2
2 2
2 1
1 1
1 2
1 2
2 1
2 2
1 2
2 1
1 1
1 2
1 2
2 1
1 2
2 2
2 1
1 2
2 1
1 2
2 2
2 1
1 2
1 2
2 1
2 1
1 2
1 1
2 2
1 2
2 2
2 1
1 1
1 2
2 1
1 1
2 1
2 2
2 1
1 1
2 2
2 1
2 2
1 2
2 1
1 2
1 2
2 1
2 2
2 1
2 1
2 1
1 2
2 2
1 1
1 1
1 2
2 1
2 2
1 1
2 2
2 2
1 1
1 1
1 1
1 2
1 1
2 2
2 1
2 2
2 1
2 1
2 1
2 1
1 2
2 2
2 2
2 2
1 2
1 1
2 1
2 2
2 2
1 2
2 2
2 2
2 2
1 1
1 1
1 1
1 1
2 2
1 2
2 1
1 2
2 1
1 2
2 1
1 2
1 2
1 1
1 2
2 1
2 1
1 2
1 1
2 1
1 2
1 1
1 1
2 2
1 1
2 2
2 1
1 1
1 2
2 2
1 2
1 2
1 2
1 1
1 1
1 1
2 1
1 1
1 2
1 1
2 2
2 1
1 1
1 2
1 1
2 2
1 2
1 2
2 1
1 1
1 2
1 2
2 2
2 1
1 2
1 2
2 1
1 1
1 1
1 1
2 1
1 2
1 2
2 2
1 2
1 2
1 1
1 2
2 2
2 1
1 1
2 1
1 1
1 2
2 2
2 2
1 1
1 2
2 1
1 1
2 1
1 1
1 1
2 1
2 1
1 1
2 2
2 1
2 1
1 2
2 2
1 2
1 2
1 2
1 2
2 2
1 1
1 2
1 1
2 1
1 1
2 1
2 2
1 1
2 1
1 1
1 1
1 1
2 1
1 2
2 2
2 1
1 1
2 1
1 1
1 2
1 2
1 2
1 1
1 2
1 2
2 2
1 2
1 1
1 1
2 1
1 1
2 1
2 1
2 1
1 1
1 2
1 2
1 2
2 1
1 2
2 1
1 1
2 1
1 2
1 1
1 1
2 1
2 1
1 2
2 1
2 2
2 1
2 1
2 1
2 1
2 2
1 2
1 1
2 2
2 2
2 2
2 1
2 1
1 2
2 1
1 1
1 2
2 1
2 2
2 2
2 2
1 1
2 1
2 2
2 2
1 2
2 1
2 2
2 2
1 2
1 1
2 1
1 1
2 2
2 2
2 2
1 1
1 2
2 1
2 1
2 1
1 2
1 1
1 2
1 1
2 2
1 1
2 1
1 1
2 1
2 2
2 1
1 2
2 1
2 2
2 2
2 2
1 2
2 1
2 2
2 1
1 1
2 2
1 1
2 1
2 1
2 2
2 2
2 1
1 1
1 2
2 2
2 2
2 1
1 2
2 2
2 2
1 2
1 1
2 2
1 2
2 2
2 2
1 2
1 2
1 1
2 1
1 1
1 2
1 2
1 1
2 1
2 2
2 2
2 2
2 1
2 2
1 2
1 2
2 1
1 2
1 1
1 2
1 2
2 2
2 2
2 1
2 1
2 2
1 1
2 1
1 1
1 1
1 1
2 2
1 1
2 1
2 2
2 2
1 2
1 1
2 1
1 1
1 2
2 1
2 1
2 1
2 2
1 2
2 1
1 1
2 1
1 2
1 1
1 2
2 1
2 1
2 1
1 1
1 1
2 2
2 1
2 1
2 1
1 2
2 2
1 1
1 1
2 2
1 2
2 1
1 2
2 1
1 2
1 2
1 1
2 2
1 1
1 1
2 1
1 2
2 2
2 1
2 1
2 2
2 2
2 1
1 2
1 1
2 2
1 1
1 2
2 2
2 2
2 1
1 2
2 1
1 1
2 2
1 1
1 2
1 2
2 2
2 2
2 1
1 1
1 1
2 2
1 1
2 2
2 2
1 2
1 2
1 2
2 1
2 1
2 1
2 2
2 2
2 2
1 1
1 1
2 2
2 1
1 1
1 2
1 1
2 2
1 2
1 2
1 2
2 1
1 2
2 1
1 2
2 1
2 2
2 2
1 2
2 1
2 1
1 1
2 1
1 1
1 1
1 2
2 1
1 2
1 2
2 1
2 2
1 2
2 1
2 1
2 1
2 1
2 2
2 2
1 1
2 1
1 2
1 2
1 1
1 1
1 2
1 2
2 2
2 1
1 2
2 1
2 1
2 1
1 1
1 2
1 1
2 1
2 2
2 1
2 1
1 1
2 1
1 1
2 1
2 2
1 1
1 2
2 1
2 2
2 1
2 1
2 2
1 1
1 2
1 2
2 1
2 2
1 2
2 2
2 1
1 2
2 1
2 1
1 1
2 1
2 1
1 1
1 2
1 2
2 1
2 1
1 2
2 1
2 2
1 1
1 2
1 1
2 2
1 1
1 2
1 1
2 2
1 2
1 2
2 2
2 2
1 2
2 1
1 1
1 1
1 2
2 1
1 2
1 2
2 1
2 1
2 1
2 1
2 1
2 1
1 2
1 1
1 2
1 2
2 1
2 2
2 2
2 1
2 1
1 2
2 1
1 2
1 1
2 1
1 2
2 1
2 2
2 1
2 2
2 1
2 2
2 2
2 2
2 2
2 2
2 2
1 2
1 2
1 2
2 2
1 2
1 1
1 2
1 2
2 1
1 2
2 1
1 2
1 2
2 2
2 1
1 1
1 2
1 2
1 2
1 2
2 2
1 1
2 1
1 2
1 2
2 2
1 2
2 2
1 2
1 1
2 2
2 1
1 2
2 2
2 2
2 2
1 1
1 1
2 2
2 2
2 2
2 2
1 1
1 1
2 2
1 1
2 2
2 2
2 1
2 1
2 2
2 2
2 1
1 2
1 2
1 1
2 1
1 1
2 1
1 1
2 2
2 1
2 2
2 2
2 2
1 2
1 2
1 1
2 1
1 1
1 1
2 1
1 1
2 2
1 1
1 1
2 2
1 1
1 2
2 1
1 2
1 1
1 2
1 1
2 1
1 1
2 1
1 1
2 1
2 2
1 1
1 2
1 2
1 2
2 2
2 2
2 2
1 1
1 2
1 1
1 2
1 1
1 2
2 2
2 1
2 1
2 2
2 2
1 2
2 2
2 2
1 2
2 2
2 2
2 1
2 1
2 2
1 1
1 2
1 1
2 1
2 1
2 1
1 1
2 1
1 2
1 2
2 1
2 2
1 1
2 1
1 1
1 2
2 1
1 2
2 2
1 2
1 1
2 2
1 1
1 1
1 2
1 2
2 2
2 2
1 1
2 2
2 2
1 2
1 2
1 2
1 2
1 2
2 1
2 2
1 2
2 1
1 1
1 1
1 1
2 2
2 1
1 2
2 1
1 2
1 1
2 2
2 1
1 2
2 2
1 2
2 1
2 1
2 1
1 1
1 2
1 2
2 1
1 1
1 1
2 1
1 2
2 2
1 2
2 2
1 1
2 1
2 2
2 1
1 1
2 1
1 1
2 1
2 2
2 1
1 1
1 1
1 1
2 1
1 2
1 2
1 2
1 1
1 1
1 1
2 2
1 2
1 1
2 2
1 2
2 1
1 1
2 2
1 2
1 1
1 2
2 2
1 2
1 1
1 2
1 2
2 2
1 2
2 2
1 1
2 1
2 2
1 1
2 1
2 2
2 1
2 1
2 2
1 2
1 1
2 2
2 1
2 2
2 1
2 2
2 1
2 1
1 1
2 2
2 2
2 2
1 2
2 1
1 2
2 1
1 1
1 1
2 1
2 1
1 2
1 1
1 2
1 1
1 2
2 2
2 1
2 1
2 2
2 1
1 1
1 2
2 1
2 1
2 1
1 2
2 1
2 1
2 2
1 1
2 2
1 1
2 2
2 1
1 2
1 2
1 2
2 2
2 1
2 2
1 2
2 2
1 2
1 2
2 2
1 1
2 1
2 1
2 2
2 2
2 1
2 2
2 2
2 1
1 1
1 2
2 2
2 1
1 1
1 2
1 1
2 2
2 2
2 2
1 1
1 1
2 1
1 1
2 1
1 2
1 1
2 2
1 2
1 1
2 1
1 1
1 2
2 1
2 2
2 1
2 2
2 2
2 2
2 2
2 1
1 1
2 1
2 2
1 2
2 2
2 1
2 2
1 1
1 1
2 1
1 1
2 1
2 2
2 2
2 1
2 2
1 1
2 2
2 1
2 1
2 2
1 2
1 2
2 2
2 1
1 2
2 1
2 1
2 1
2 2
2 1
1 1
1 2
2 2
2 2
1 1
2 2
1 1
2 2
2 2
1 2
2 1
2 2
2 1
1 1
2 2
2 1
2 2
1 1
2 1
1 1
2 2
2 1
1 2
2 1
2 1
2 1
1 2
2 1
2 1
1 1
1 1
1 2
2 1
1 1
2 2
1 2
2 2
2 1
1 1
1 1
1 2
2 2
1 2
1 1
2 2
2 1
1 1
1 1
2 2
1 2
2 1
1 1
2 1
1 1
2 1
1 1
2 1
1 2
1 1
2 2
1 1
1 2
1 1
2 1
2 1
2 2
2 2
1 1
1 1
1 2
1 1
1 2
2 1
2 2
2 2
1 1
1 2
1 1
2 2
1 2
1 2
1 1
1 1
1 2
2 1
2 2
1 1
1 2
2 2
2 2
1 1
1 2
2 1
2 1
2 1
2 2
1 1
2 2
2 1
2 1
1 1
2 2
2 1
1 2
1 2
2 1
2 1
2 2
2 2
1 2
1 2
2 2
2 1
1 2
2 1
2 1
2 1
1 1
2 1
1 1
1 2
2 1
2 2
1 1
2 1
1 1
2 2
2 1
2 1
1 2
1 1
2 1
1 1
1 2
1 1
2 2
1 1
1 1
2 2
1 2
2 2
1 2
1 2
1 1
1 2
1 1
2 2
2 1
2 1
1 2
1 2
2 2
1 2
1 2
1 2
1 1
2 1
2 1
2 2
2 2
2 2
1 2
1 1
2 1
2 2
2 2
2 2
1 2
1 2
1 2
1 2
2 2
2 2
2 1
1 2
2 2
2 1
1 2
2 1
1 2
2 2
1 1
1 1
1 1
2 1
1 1
1 2
2 1
1 2
2 1
2 2
1 2
1 1
2 1
2 1
1 1
1 2
2 1
1 2
1 2
2 2
2 2
1 1
1 2
2 1
1 2
1 1
2 2
2 2
1 1
1 1
1 2
2 1
2 2
2 2
1 1
2 2
2 1
2 1
1 2
1 2
2 2
2 2
2 2
2 1
2 1
1 2
2 2
1 1
1 2
2 1
1 1
2 2
1 2
2 1
1 2
2 2
1 1
2 2
2 2
1 1
2 1
1 2
2 2
2 1
2 2
1 1
1 2
2 2
1 1
2 2
2 1
2 2
1 2
1 2
2 2
1 2
1 1
2 2
1 2
2 2
2 1
2 1
1 1
1 1
2 1
1 2
1 2
2 2
2 1
2 2
1 2
1 2
2 1
1 2
2 2
2 2
2 1
1 2
1 2
2 1
1 1
1 1
1 2
2 1
1 1
1 2
2 1
2 1
2 2
2 1
1 2
1 2
2 1
2 1
2 2
1 2
2 2
1 2
1 1
2 1
2 1
1 2
2 2
1 2
1 1
2 2
1 1
1 2
2 2
2 1
2 1
2 1
2 1
1 2
1 1
2 2
2 1
1 1
1 2
1 2
1 2
1 2
2 2
2 2
2 2
2 1
2 1
2 2
1 2
2 1
1 2
1 2
2 2
2 1
2 2
1 2
1 1
1 2
2 2
2 2
2 1
2 2
2 2
2 2
1 1
1 2
1 2
1 2
2 2
1 2
1 1
1 2
2 1
1 2
2 2
2 2
2 2
2 2
1 2
2 1
2 2
1 2
1 1
1 1
2 2
2 2
2 2
1 1
2 2
2 1
1 2
1 2
1 2
1 2
2 2
1 1
1 2
1 2
1 2
2 2
1 1
1 1
2 1
2 2
2 1
2 2
1 2
1 1
1 2
1 1
1 2
1 2
1 1
2 2
2 1
2 2
2 2
2 1
1 2
1 1
2 2
2 2
1 2
2 2
1 2
2 2
2 2
2 1
2 2
2 2
1 1
2 1
1 2
1 1
2 1
2 2
1 1
2 1
1 1
2 2
1 1
2 2
2 2
1 2
1 2
1 1
1 1
2 1
2 2
2 2
1 2
1 1
1 2
2 1
1 1
2 2
2 2
2 1
1 2
2 2
2 1
1 1
2 1
2 2
2 2
1 2
2 2
2 1
2 2
1 2
2 2
2 1
1 1
1 1
1 2
1 1
1 2
2 2
1 1
2 1
2 2
1 2
2 2
2 2
2 1
2 2
1 2
2 1
1 2
1 2
2 1
1 2
2 2
1 1
2 1
2 2
2 2
1 2
1 2
1 1
2 1
2 2
2 2
2 1
1 1
2 1
1 1
1 2
1 2
1 1
2 1
1 1
2 2
1 2
1 1
2 2
2 2
2 1
2 1
1 1
2 2
1 1
1 1
2 2
2 2
2 2
1 2
2 2
2 2
1 2
2 2
1 2
2 2
1 2
1 1
1 1
2 1
2 2
1 1
1 1
2 2
2 1
1 2
1 2
1 1
2 2
2 2
1 1
2 1
1 1
2 1
2 2
2 2
1 2
1 1
2 1
2 1
1 2
2 1
1 2
2 2
1 2
1 2
2 2
2 2
1 2
1 1
1 2
1 2
2 1
2 1
1 1
2 1
1 2
2 1
1 1
2 2
2 2
1 1
1 2
2 2
2 1
1 1
1 2
2 1
1 1
1 1
2 1
2 2
1 2
1 2
1 2
2 2
1 1
1 1
2 2
2 1
2 2
1 2
2 2
2 1
1 1
1 1
2 2
1 1
2 2
2 1
1 1
2 1
2 2
2 2
2 2
2 1
1 1
2 1
2 1
1 2
1 2
1 1
1 2
1 1
2 2
1 1
1 1
2 1
1 1
1 1
1 1
2 1
1 1
2 2
1 1
1 1
2 1
2 2
1 1
2 2
2 2
1 1
1 1
1 1
2 2
2 1
2 1
2 1
2 2
2 2
2 1
1 1
1 2
1 2
2 2
1 2
1 1
2 2
1 2
2 2
2 2
2 2
2 2
1 1
2 2
1 1
1 2
2 2
2 2
1 1
1 2
2 2
2 1
2 2
1 1
1 2
2 2
1 2
1 2
1 1
2 2
1 1
2 2
1 1
1 2
1 2
1 1
1 1
1 2
1 1
1 1
1 1
2 2
1 1
1 1
1 2
2 1
1 1
2 2
1 2
2 2
1 2
2 2
1 2
1 2
1 1
2 1
2 1
2 1
2 1
2 1
1 1
1 1
2 1
1 2
2 1
2 1
2 2
1 2
1 1
1 2
1 1
2 1
1 1
2 2
1 2
1 2
2 1
1 1
1 2
1 2
1 1
2 2
1 2
1 1
1 2
1 1
1 1
2 2
2 1
2 2
2 1
2 1
1 1
2 1
2 2
2 2
1 2
2 2
1 1
2 1
1 2
2 1
1 2
2 1
2 2
1 2
2 1
2 2
2 2
2 1
2 2
2 1
1 2
1 2
1 2
2 2
2 1
1 1
2 1
2 2
1 1
2 1
1 2
1 2
1 1
2 2
1 1
1 2
1 2
2 2
1 2
1 1
2 1
1 1
1 1
2 2
1 2
1 2
2 2
2 2
1 1
1 2
2 1
1 2
2 2
2 1
1 1
2 1
1 1
2 2
1 2
1 2
1 1
2 2
1 1
2 2
2 2
1 1
1 1
2 2
2 2
2 2
2 2
2 1
2 2
2 2
1 1
1 2
2 2
1 1
2 2
2 2
2 2
2 1
2 2
2 1
2 2
1 2
2 2
2 2
1 2
2 2
1 1
2 2
2 2
2 2
1 1
2 2
1 1
1 1
2 1
2 2
1 1
2 2
2 1
1 2
2 2
1 2
1 2
2 2
2 1
1 2
1 1
1 2
1 1
1 2
1 2
1 2
2 1
1 1
1 2
1 1
1 2
2 2
1 1
1 1
1 2
2 1
1 2
1 1
1 1
1 2
1 2
1 2
2 2
1 2
2 2
2 1
1 2
1 2
1 1
1 1
1 1
2 1
1 2
1 1
2 1
1 1
2 2
2 1
1 2
1 1
2 1
1 1
1 2
2 1
1 2
1 2
1 1
1 1
1 1
1 2
1 2
1 2
1 1
1 1
2 1
2 2
2 1
1 2
2 1
2 1
1 1
2 2
2 2
2 1
1 1
2 1
1 1
2 2
2 2
2 2
1 2
1 1
2 1
1 1
2 1
1 2
1 1
2 1
2 2
1 2
1 2
2 1
2 1
1 1
1 1
2 2
2 2
2 1
1 2
1 1
1 2
2 1
1 1
2 2
1 2
1 2
2 1
2 1
1 1
2 2
2 1
1 1
2 2
2 1
1 1
1 2
2 2
2 2
2 1
2 2
1 1
2 1
1 1
2 1
1 2
1 2
2 2
2 2
2 1
2 2
2 2
2 2
1 2
2 1
2 2
2 2
1 1
2 2
2 2
2 2
1 2
1 1
2 1
2 2
1 2
1 1
2 2
1 2
1 1
1 2
1 2
1 1
2 1
1 1
2 2
2 1
2 2
1 1
1 2
2 1
2 2
2 2
2 2
1 1
2 2
2 1
2 1
2 2
2 2
1 1
1 2
1 2
2 2
2 2
2 1
2 2
2 2
2 1
1 1
1 1
1 2
2 1
1 2
1 1
2 2
2 2
2 1
2 2
1 2
2 2
1 2
1 2
2 2
1 2
2 1
1 2
2 2
2 1
1 2
2 2
2 1
1 2
2 1
2 2
1 2
2 2
2 2
2 2
1 1
2 2
1 1
1 2
1 1
1 1
2 2
1 1
1 2
2 1
2 1
1 1
1 2
2 1
1 2
2 2
1 2
2 2
2 1
1 1
2 2
2 1
2 1
1 1
2 1
1 1
1 1
2 1
1 1
2 1
1 2
2 2
2 2
2 1
1 2
2 1
2 2
1 2
2 1
1 1
2 2
2 1
2 1
1 1
1 1
2 1
2 2
1 2
2 1
1 2
2 1
1 2
1 1
2 1
1 2
1 2
1 1
2 2
1 1
2 1
1 2
1 1
1 2
1 1
1 1
1 1
2 1
2 2
1 1
2 2
1 2
1 1
1 2
2 1
2 1
1 2
2 2
2 1
2 1
1 2
2 2
2 2
2 1
2 2
2 2
2 2
1 2
2 1
1 2
1 1
2 2
1 2
2 2
2 2
1 1
2 1
2 2
2 1
1 1
2 1
2 1
2 1
2 1
2 2
2 1
2 2
2 2
2 1
1 1
1 2
1 2
1 2
2 1
1 1
1 2
2 2
2 1
1 1
2 1
1 1
1 2
2 1
2 1
2 2
2 1
2 2
1 1
1 2
1 1
2 1
2 1
1 2
2 2
2 2
2 2
1 1
1 1
1 1
2 2
1 1
1 1
1 1
1 1
2 2
1 1
1 2
2 2
1 1
2 2
1 2
2 1
2 1
2 2
2 2
1 1
1 1
2 2
1 1
1 2
2 1
1 2
1 2
2 2
2 2
2 2
1 1
2 1
2 2
2 2
2 1
1 2
2 2
2 1
2 2
2 2
1 1
2 1
1 1
2 1
1 1
1 2
2 2
2 2
1 1
2 1
1 2
1 1
1 1
2 1
2 1
1 2
2 1
2 1
1 1
2 2
1 2
1 2
1 2
1 1
1 2
2 1
2 2
1 1
2 2
2 2
1 2
2 1
2 1
2 2
1 1
2 2
1 1
2 1
1 2
2 2
1 1
1 1
1 2
2 1
2 1
1 2
2 2
2 2
1 1
1 1
2 1
1 1
2 1
1 2
2 2
1 1
2 2
2 2
1 1
1 2
1 1
1 2
1 2
1 2
2 1
2 2
1 2
1 2
2 2
2 1
1 1
1 2
2 2
1 2
2 2
1 2
2 1
1 2
2 1
1 2
2 1
2 2
1 1
2 2
1 1
2 2
1 2
2 2
2 2
2 2
1 1
1 1
1 2
1 1
1 2
2 2
1 2
1 1
2 2
1 1
2 2
1 1
1 1
2 1
1 1
1 2
2 1
2 1
2 2
1 1
2 2
1 1
1 2
1 2
1 2
2 1
2 2
2 1
1 2
2 1
1 2
1 1
1 1
2 2
1 1
2 1
2 1
2 2
1 2
2 2
2 2
1 1
1 2
2 1
1 1
2 1
2 2
1 2
2 2
1 1
1 2
1 2
1 1
2 1
2 2
1 1
1 2
1 1
2 2
2 2
2 1
1 1
1 2
1 1
2 2
2 2
1 1
1 2
2 2
1 2
1 2
2 1
2 1
1 1
2 1
2 1
2 1
1 2
2 2
2 1
1 1
2 2
1 1
1 1
2 1
2 2
2 2
2 1
2 1
1 1
1 2
2 1
1 1
1 2
2 2
1 2
2 1
2 1
2 1
1 2
1 2
1 2
2 2
1 1
2 1
2 1
1 1
2 2
2 2
1 2
1 2
1 2
1 2
1 2
1 1
2 2
1 1
2 1
2 2
2 2
1 1
1 1
1 2
1 2
2 1
2 1
2 2
2 2
2 1
2 1
1 1
1 1
1 1
1 1
2 1
2 1
2 2
1 1
2 2
1 2
2 2
2 2
1 1
1 2
1 1
2 1
1 2
2 1
1 2
1 2
1 1
1 1
1 2
2 1
2 1
1 2
1 1
1 1
1 1
2 2
1 1
2 1
1 1
2 2
2 2
2 1
1 2
1 2
2 2
2 1
1 1
2 1
2 2
1 1
2 2
2 2
1 2
2 2
2 1
1 2
1 1
2 2
1 1
2 2
1 1
2 1
2 2
1 2
1 2
1 1
2 2
1 1
2 2
2 1
1 2
2 2
1 2
1 2
1 2
2 1
1 1
1 1
2 1
1 2
1 2
1 1
2 2
1 1
2 2
2 1
1 2
1 2
1 2
1 2
2 2
1 2
2 2
2 2
1 2
2 1
2 1
2 2
1 1
1 2
2 2
1 2
1 1
1 1
1 2
1 1
2 1
1 1
2 2
2 2
1 1
2 1
2 2
1 2
1 1
1 2
2 2
1 2
2 1
1 2
2 1
2 2
2 2
2 2
2 2
2 1
1 2
2 1
2 1
2 2
1 1
1 1
2 1
2 1
2 1
2 2
1 2
1 2
1 1
2 2
1 2
2 1
1 1
2 1
1 2
1 2
2 2
1 2
1 2
2 2
2 1
2 2
2 2
1 2
1 2
2 2
2 2
1 2
1 1
2 2
1 1
2 1
1 1
2 2
1 2
1 1
2 1
1 1
1 2
1 1
1 2
2 1
1 1
2 1
2 1
2 1
1 1
1 2
2 2
1 2
1 2
1 2
1 2
1 1
2 2
1 2
2 1
1 2
2 2
2 1
2 2
1 2
1 2
1 1
2 2
1 1
2 2
2 1
1 1
2 2
2 2
1 2
1 2
1 1
2 1
1 1
2 1
2 1
1 1
2 2
1 1
1 1
1 2
2 1
1 1
2 1
1 2
2 2
1 1
2 2
1 2
2 1
1 1
1 2
1 2
1 2
2 1
1 2
2 1
2 1
2 1
2 1
2 2
1 1
2 1
2 1
1 2
2 2
2 2
1 2
1 1
1 1
1 2
1 2
2 1
2 2
2 2
2 1
1 1
2 2
2 1
1 1
1 2
1 1
2 2
2 1
1 1
2 2
2 1
2 2
1 1
2 2
2 1
1 1
2 1
1 1
1 1
1 2
1 2
1 1
1 1
1 2
1 1
1 1
2 2
2 2
2 1
2 2
1 2
1 2
2 1
2 2
2 2
1 2
2 2
1 1
1 2
2 1
2 2
1 2
1 1
1 1
2 1
2 2
1 1
2 1
1 1
2 2
2 1
2 1
1 2
1 2
2 2
2 2
1 1
1 2
1 1
2 1
2 2
1 2
1 1
1 1
2 2
2 1
2 2
1 2
1 1
2 1
2 1
2 1
1 1
1 2
1 1
1 1
2 1
1 1
1 1
2 2
2 2
2 2
2 1
2 1
2 2
2 2
2 1
2 2
1 1
1 1
1 1
1 1
1 1
2 1
1 2
2 1
2 2
1 1
2 1
2 2
1 2
1 1
1 1
2 2
2 2
1 2
1 1
1 2
1 1
2 2
1 2
2 2
2 2
1 1
2 2
1 2
1 1
1 2
1 2
1 1
1 2
2 2
1 1
2 2
1 1
2 1
2 1
2 2
1 1
2 2
1 1
1 2
1 2
2 2
1 2
1 1
2 1
2 1
1 1
1 1
1 1
1 1
2 2
1 1
2 1
2 2
2 1
2 1
2 1
2 1
2 1
2 2
1 2
1 1
2 2
1 2
2 2
1 2
2 2
1 2
2 1
2 2
1 1
1 1
1 1
2 2
1 1
1 2
2 2
2 1
2 1
2 1
1 2
2 2
1 1
1 2
2 1
1 1
1 2
1 2
2 2
1 2
1 1
2 2
2 1
2 2
1 2
2 1
1 1
2 2
1 1
2 2
2 1
2 1
2 2
2 1
1 2
2 2
2 1
1 2
2 1
1 1
2 1
2 1
2 1
2 1
2 2
2 2
1 1
1 2
1 2
1 1
2 1
2 2
1 2
2 2
1 2
1 2
2 2
1 1
1 1
1 1
1 2
1 1
1 2
1 1
1 2
2 1
1 1
1 1
2 1
2 1
1 2
2 2
1 2
1 2
1 2
1 1
2 2
1 1
2 2
2 1
1 1
2 1
2 1
1 2
1 1
1 1
1 1
2 2
1 2
2 2
2 2
1 1
2 1
1 2
1 2
2 1
2 2
2 2
1 1
1 1
1 2
2 1
1 1
1 1
2 2
1 2
2 1
1 1
1 2
2 1
1 1
1 2
2 2
2 1
2 1
1 2
2 2
2 2
1 2
2 2
2 1
1 1
2 2
2 1
2 2
2 2
1 1
1 1
2 1
1 2
1 2
1 2
2 2
2 2
1 1
1 2
2 2
2 2
2 1
2 1
2 1
1 1
1 1
2 1
2 1
1 1
2 1
2 1
2 1
2 1
1 2
1 2
1 1
2 1
2 1
1 1
1 1
1 1
2 1
2 2
1 1
1 2
1 1
2 1
1 2
2 1
1 2
2 1
1 1
1 1
1 2
1 2
1 1
2 1
1 1
1 1
1 1
2 2
2 1
2 1
1 2
2 2
1 1
1 1
1 2
2 2
2 1
2 1
2 1
1 1
2 1
1 1
1 2
2 1
1 1
2 2
1 2
2 1
1 1
1 1
1 1
1 2
1 2
1 2
1 1
1 2
1 1
1 2
1 2
2 2
2 1
2 1
1 1
2 2
2 2
1 2
2 2
2 1
2 1
1 2
1 2
1 1
2 2
2 2
2 2
1 2
2 1
1 1
1 1
2 1
1 2
2 1
1 2
2 1
1 1
2 2
2 2
2 1
1 2
1 2
2 2
1 2
2 2
1 1
2 1
1 2
2 1
2 1
1 2
2 2
1 2
2 2
1 1
2 1
1 1
2 2
1 1
1 2
1 2
1 2
2 1
1 1
2 1
1 2
1 1
1 1
1 1
1 2
1 1
2 1
1 1
1 1
2 1
1 1
1 2
2 1
2 1
1 2
1 1
2 2
2 1
2 2
2 1
2 1
2 2
2 1
1 1
1 1
2 2
1 2
2 2
2 2
1 2
1 2
2 1
2 2
2 1
1 1
1 1
1 2
1 1
2 1
2 2
2 2
2 2
2 2
2 1
2 1
2 2
1 1
1 2
1 1
2 1
1 1
2 2
2 2
1 2
2 2
2 1
2 2
2 1
1 1
1 2
1 1
1 2
2 2
2 1
2 1
1 2
2 1
1 1
2 2
1 1
1 1
2 2
2 1
1 2
1 1
2 2
1 1
2 1
2 2
2 1
1 1
2 1
2 1
2 1
2 1
1 2
2 2
1 1
1 2
2 1
1 2
1 2
1 1
2 2
2 1
1 2
1 2
1 1
1 1
1 2
1 1
1 2
2 2
1 2
1 1
1 1
1 1
1 2
2 1
2 2
2 1
2 2
2 1
2 1
2 2
1 1
2 1
2 1
2 1
2 2
1 1
2 2
2 1
1 1
2 2
1 2
2 1
1 2
2 1
1 1
1 2
2 1
2 1
2 2
1 1
2 1
2 1
1 2
1 1
2 2
1 1
2 1
1 1
2 2
1 2
2 2
1 2
1 2
1 2
1 1
1 1
2 1
2 1
1 1
1 1
1 2
2 2
1 2
1 1
2 2
1 1
2 1
2 2
1 1
1 1
1 2
1 2
2 2
2 1
2 2
2 2
1 2
2 1
2 2
1 2
2 2
2 2
1 2
2 2
1 1
1 2
2 2
2 2
2 2
2 2
1 1
1 2
2 2
2 1
2 2
1 2
1 1
2 2
1 1
1 1
1 2
2 2
2 1
2 1
1 2
2 1
1 1
1 2
1 2
2 1
1 1
2 2
2 1
1 1
1 2
2 2
1 2
1 2
2 1
2 1
1 2
1 1
2 2
1 2
2 1
2 1
1 2
2 2
2 2
2 1
1 1
2 2
2 2
2 1
2 2
1 2
1 2
2 1
1 1
2 1
1 2
1 2
2 1
1 2
1 2
2 2
2 1
1 2
2 2
2 1
1 2
2 2
2 2
2 2
1 2
1 2
1 2
1 1
1 1
2 2
1 2
1 1
2 1
1 2
1 2
2 2
2 1
2 1
1 1
2 1
2 1
1 1
1 2
2 1
2 1
2 1
2 2
1 1
2 2
2 2
1 2
2 1
1 2
2 2
2 1
1 1
2 2
1 1
2 1
1 1
1 1
2 1
2 2
1 1
1 1
2 2
1 2
1 1
1 1
1 2
2 1
1 2
2 1
1 2
2 2
2 1
1 1
2 2
2 2
1 2
1 2
1 1
1 1
1 2
1 2
1 1
2 2
2 2
1 1
2 1
1 2
1 2
1 1
1 1
2 2
1 1
2 2
1 2
2 1
1 2
1 2
2 2
2 1
2 2
1 2
1 1
1 1
2 2
1 1
1 1
1 2
2 2
2 2
2 1
2 1
1 2
2 2
2 2
2 2
1 1
2 2
2 1
1 2
1 1
2 1
1 2
1 2
2 1
2 1
1 2
2 2
2 2
2 1
1 1
1 1
1 2
1 2
2 2
2 1
1 2
2 1
2 2
2 1
2 1
2 2
1 2
1 2
1 1
2 1
1 2
2 1
2 2
1 2
2 1
1 2
1 1
2 2
1 1
2 1
1 1
2 2
2 1
2 2
1 2
2 1
2 2
1 2
2 1
2 2
1 2
1 1
2 1
2 1
2 2
2 1
1 1
1 1
2 1
1 2
2 2
1 2
2 2
2 2
2 2
1 1
2 1
1 2
2 2
1 2
1 2
2 2
2 1
1 2
2 1
2 1
1 2
2 2
1 2
2 2
2 2
2 2
1 1
2 2
2 1
2 2
1 1
1 2
2 1
2 2
2 2
2 2
2 2
2 1
1 1
2 2
1 1
2 2
1 2
2 1
2 2
2 1
1 2
2 1
1 2
2 1
1 2
1 1
2 2
1 2
2 1
2 1
2 1
1 1
2 1
1 1
1 1
1 1
2 1
2 2
2 1
2 1
2 2
2 1
2 2
1 2
1 2
2 2
2 1
2 1
1 1
1 1
2 2
2 1
1 1
1 2
1 2
2 2
2 1
2 2
2 2
2 1
1 2
2 1
2 2
2 2
2 1
2 2
1 2
1 1
1 1
2 1
2 2
2 2
1 1
2 2
2 2
2 1
1 1
2 1
1 2
2 2
1 2
1 1
2 1
2 2
1 1
2 1
2 2
2 2
2 1
2 1
2 2
2 1
2 2
2 2
1 1
2 2
2 1
2 2
2 2
1 1
1 2
1 1
1 1
2 1
2 2
2 1
1 1
1 1
2 2
2 1
1 2
1 1
2 2
2 1
2 2
1 2
1 1
1 2
1 2
1 2
2 2
1 1
2 1
2 2
2 1
2 2
2 2
2 2
1 1
1 1
1 1
2 1
2 2
2 1
2 2
1 2
2 2
2 2
2 2
1 2
2 2
2 1
2 1
2 2
2 2
1 2
1 1
2 2
1 1
2 1
2 2
2 2
1 2
2 1
2 1
1 1
2 1
2 1
1 2
1 2
1 1
1 1
2 2
1 1
1 1
1 1
1 1
1 2
1 2
1 2
1 2
1 1
2 2
1 1
1 2
1 1
2 2
1 1
2 1
2 1
2 2
2 2
1 2
1 1
2 1
1 2
2 2
2 2
2 2
2 2
1 1
2 2
2 2
2 1
1 1
2 2
1 2
1 1
2 2
1 2
2 2
2 1
2 2
2 1
1 1
1 2
2 1
1 1
1 1
2 2
1 1
1 2
2 1
2 2
1 2
1 1
2 2
1 2
1 2
2 1
1 1
1 1
1 1
1 1
2 2
1 1
1 2
1 1
1 2
1 1
1 1
2 1
1 2
2 1
2 2
2 1
2 1
1 2
2 2
1 1
1 2
1 2
2 2
2 2
1 2
1 2
2 1
2 1
1 1
2 2
2 2
1 1
1 2
1 2
2 2
1 2
1 1
2 2
2 1
2 1
1 1
2 1
2 1
2 2
2 1
1 1
2 1
1 2
1 1
2 1
2 2
2 1
2 2
2 2
2 1
1 1
2 2
2 2
2 1
2 1
2 2
2 2
2 2
1 1
1 2
2 1
1 2
2 1
2 1
1 2
1 2
1 2
1 2
1 1
1 1
2 2
2 2
1 2
2 2
2 2
2 1
2 1
1 1
1 1
1 2
2 2
2 1
1 2
2 2
1 2
2 1
1 1
1 2
2 1
1 2
2 1
2 2
2 1
1 1
1 2
2 1
1 2
2 2
1 1
1 2
1 2
2 2
2 2
1 1
2 2
1 2
2 2
2 2
1 2
2 2
2 1
2 2
2 1
2 2
2 2
1 2
2 2
1 1
1 1
1 2
2 2
2 1
1 1
1 1
2 1
1 1
1 2
2 2
2 1
1 2
1 2
2 2
2 2
1 2
1 1
1 1
2 1
2 1
2 2
1 2
2 1
2 1
2 1
2 1
1 1
2 2
1 2
1 2
1 2
2 2
1 2
2 2
2 1
2 2
1 2
2 2
2 2
1 1
2 2
2 2
1 1
2 2
1 2
1 1
2 1
2 1
2 2
2 2
2 1
2 1
2 1
1 2
2 1
1 2
1 2
2 2
1 1
1 1
1 2
2 2
1 2
2 2
2 1
2 2
2 2
2 1
2 1
2 2
1 1
2 2
2 2
2 2
1 2
1 1
2 2
2 2
1 1
1 1
1 2
1 2
2 2
2 1
2 1
1 1
1 2
2 1
2 2
2 1
2 1
2 2
2 2
1 2
1 1
2 2
2 1
2 1
2 1
2 1
1 2
2 1
1 1
1 2
1 2
1 1
2 2
2 2
1 2
2 1
1 2
1 2
1 1
1 1
1 1
2 2
2 2
1 1
2 1
1 1
1 1
2 1
2 2
1 2
1 2
1 1
2 2
1 1
1 2
1 1
2 2
2 2
2 1
1 1
2 1
1 1
1 2
2 2
2 2
2 2
1 2
2 1
1 1
1 1
1 1
1 1
2 1
1 2
1 2
2 1
2 2
2 2
2 2
2 1
2 2
1 2
2 2
2 1
2 1
2 1
1 1
1 2
2 1
2 1
1 1
1 2
2 2
1 2
1 1
2 1
2 1
1 1
2 2
1 2
1 1
2 1
2 1
2 1
1 2
2 1
2 1
1 2
2 1
2 1
2 1
2 2
1 1
1 2
1 2
1 1
1 1
2 2
1 1
2 2
2 1
1 2
2 2
1 2
2 2
2 1
1 2
2 1
2 2
2 1
2 1
1 2
1 2
2 2
2 1
2 2
1 1
1 2
1 1
2 2
2 1
1 1
2 1
2 2
2 2
1 2
1 2
2 1
2 2
1 2
1 1
2 2
2 2
2 1
2 1
1 2
1 2
2 1
1 1
2 1
2 2
2 1
1 2
2 1
1 2
2 1
1 2
2 2
2 2
2 2
1 2
2 1
2 1
1 2
2 1
2 1
2 2
2 2
2 2
1 1
2 1
1 1
1 1
2 1
2 2
2 1
2 2
2 2
2 2
2 1
2 1
1 1
1 2
1 2
2 1
1 1
2 1
2 1
1 1
1 2
2 2
1 1
2 2
2 2
2 2
2 1
2 1
2 1
2 1
1 1
2 2
2 1
2 2
2 1
2 2
1 2
1 1
2 1
2 2
1 2
1 2
2 1
2 1
1 1
1 1
2 1
2 2
1 1
1 1
2 1
2 2
2 2
2 2
1 1
1 2
2 2
2 1
2 2
2 2
1 1
2 2
1 1
2 1
1 1
1 1
2 2
2 1
2 1
1 2
1 1
2 1
2 1
1 2
2 2
2 1
1 2
2 1
1 1
2 1
1 2
1 2
1 1
1 2
1 1
1 2
2 1
1 2
1 1
1 2
2 1
1 1
2 1
1 1
2 1
2 1
2 2
1 1
2 2
1 2
2 1
2 1
2 2
2 1
1 1
2 2
2 1
1 1
1 2
2 2
2 1
1 1
2 2
2 2
2 2
1 2
1 1
2 1
2 2
2 2
2 2
2 1
1 1
2 2
1 2
2 1
1 2
2 2
2 2
2 2
1 2
1 2
1 1
1 1
2 1
1 2
2 1
1 1
2 2
2 2
2 2
1 2
1 1
1 1
1 2
1 2
2 1
1 1
1 1
2 1
1 1
2 2
1 1
2 2
1 2
2 2
1 1
1 1
1 1
1 1
2 2
2 2
2 1
1 2
1 2
1 1
2 2
2 1
2 1
2 2
2 1
2 1
2 1
2 2
1 1
2 2
1 1
1 2
2 1
1 1
1 2
1 1
2 2
1 2
2 1
1 1
2 2
2 1
1 2
1 2
2 1
2 1
2 1
1 2
1 1
2 2
2 1
1 2
2 1
1 2
1 2
2 2
1 1
1 2
1 1
2 1
1 1
2 2
2 1
2 1
2 1
1 2
1 2
2 1
1 2
2 2
1 2
2 1
2 2
1 2
1 2
2 1
2 1
2 1
2 1
1 2
1 1
2 2
1 1
1 2
2 2
1 1
2 1
1 1
2 2
1 1
1 2
1 1
1 1
1 2
1 1
2 2
2 2
2 1
1 1
1 2
2 2
1 1
1 2
2 2
1 2
1 1
1 2
2 2
2 2
2 1
1 1
1 1
1 2
1 2
2 1
1 2
1 1
1 2
2 1
1 1
1 2
1 2
2 2
2 2
1 1
2 2
1 1
1 1
2 2
2 2
2 1
2 2
1 1
1 2
1 1
1 1
1 2
2 2
2 2
2 2
1 1
1 1
2 2
1 1
2 2
2 2
1 2
1 2
1 2
2 2
2 1
2 2
1 1
2 1
1 1
1 1
1 2
2 2
2 2
2 1
2 2
1 2
1 1
1 1
2 2
2 1
1 2
2 2
2 2
1 2
1 2
2 1
1 2
1 1
2 1
1 2
2 1
2 2
2 2
2 1
1 1
1 2
1 1
2 1
1 1
1 1
1 2
2 1
1 1
1 2
2 2
2 1
2 2
2 1
1 1
2 1
1 1
2 1
1 2
1 1
2 2
2 1
1 2
1 2
1 2
1 1
2 1
2 1
2 1
1 1
1 2
1 2
2 2
2 1
1 2
2 2
2 1
1 1
1 2
2 1
1 2
1 1
1 2
1 1
1 1
2 2
1 1
1 1
1 1
1 1
1 2
2 1
1 1
2 1
2 2
2 2
1 2
1 1
1 2
1 1
1 1
2 1
1 2
2 1
2 1
1 1
2 1
2 2
2 2
2 1
2 1
2 2
1 2
2 1
2 1
2 1
1 1
1 2
2 1
1 1
1 2
1 1
2 1
2 1
1 2
1 2
1 2
1 2
2 1
2 2
2 1
2 1
2 1
1 1
1 1
2 2
1 1
1 2
2 1
2 1
1 1
2 2
2 1
1 2
2 1
1 1
2 1
2 2
2 2
1 1
1 1
1 2
1 2
2 2
2 2
2 2
1 2
1 2
2 2
1 1
2 1
1 1
1 2
1 1
1 2
1 2
2 1
1 1
1 1
1 1
1 1
1 2
1 2
2 1
1 2
1 1
2 1
2 1
1 1
1 1
1 2
2 2
2 2
2 1
2 1
2 2
2 2
1 1
2 2
2 1
2 1
2 2
1 1
1 2
2 2
2 1
2 2
1 2
1 2
2 2
2 1
1 1
2 2
2 1
1 2
2 1
1 1
1 1
2 1
1 1
1 1
2 1
2 2
1 2
2 1
2 1
1 2
2 1
1 1
2 1
2 2
2 1
2 1
1 1
2 2
1 2
1 2
1 2
1 1
1 1
1 1
2 2
2 1
2 1
2 2
1 2
1 2
1 2
2 1
2 1
1 2
1 2
2 1
2 2
2 1
1 2
1 2
1 1
1 1
2 1
2 2
2 1
2 2
1 2
1 2
1 2
1 1
1 1
1 2
1 2
1 2
2 2
2 1
1 1
2 1
2 2
1 2
1 1
2 2
1 2
2 1
2 1
2 1
1 2
2 2
2 1
2 1
1 2
2 2
2 2
2 1
2 1
2 1
1 1
2 1
2 2
1 1
2 1
1 1
2 2
1 1
1 1
2 2
1 2
2 1
2 2
2 1
2 2
1 2
2 1
1 1
2 1
2 2
2 1
2 2
1 1
2 2
1 2
2 2
2 2
2 1
2 1
1 1
2 1
2 1
1 2
1 1
1 2
2 1
2 2
1 1
2 1
2 1
2 2
1 1
2 2
1 1
2 2
2 1
1 1
1 1
2 2
1 1
2 2
2 1
1 2
2 1
1 1
1 2
1 2
1 1
2 2
1 1
1 1
2 2
1 1
2 1
2 1
2 1
2 1
1 1
2 2
1 2
1 1
1 2
2 2
2 1
2 1
2 1
2 1
2 1
2 2
2 1
1 1
1 2
1 1
2 2
2 2
2 2
1 1
2 1
1 1
2 1
2 2
1 1
2 2
2 1
1 1
1 1
1 2
1 1
1 2
1 1
2 2
2 1
1 2
1 2
2 1
2 1
1 2
1 1
1 2
2 2
1 2
1 2
2 2
2 1
2 1
2 2
1 1
1 2
2 1
2 2
1 2
2 2
1 1
1 2
1 2
2 1
1 1
2 1
1 2
1 2
2 2
1 1
1 1
2 1
1 1
2 2
1 1
2 2
1 2
1 1
1 2
1 2
1 1
1 2
2 2
2 2
2 1
1 1
2 2
2 1
2 2
1 1
1 1
1 2
1 1
1 1
2 1
1 2
2 2
2 2
1 1
2 2
2 2
2 2
2 2
1 1
1 1
1 1
2 2
2 1
1 1
1 2
1 1
2 2
2 2
2 2
2 2
2 1
2 2
1 1
2 1
1 2
2 1
1 1
1 1
1 1
1 2
2 2
1 2
2 2
2 1
1 1
2 2
1 1
1 2
2 1
1 2
1 1
2 1
2 2
1 1
2 2
2 2
1 2
1 2
2 2
2 1
1 2
1 2
1 1
1 1
1 2
1 2
1 2
1 1
2 2
1 2
1 2
2 1
2 1
1 2
2 1
2 1
1 2
1 2
2 2
1 1
2 1
2 1
1 1
2 2
2 2
1 2
2 2
1 2
2 1
1 1
2 1
1 2
2 2
2 2
1 2
1 2
2 2
1 2
2 1
1 1
2 2
1 1
1 2
1 2
2 2
2 2
2 2
2 2
2 1
1 2
1 2
2 2
2 1
1 1
2 1
2 1
2 2
1 2
2 2
2 1
1 1
1 1
1 1
2 1
1 1
2 2
2 2
2 1
1 1
1 2
2 2
1 2
2 1
2 2
1 1
1 1
1 1
2 2
1 2
2 1
1 2
1 2
1 2
2 2
2 2
2 2
1 2
1 2
1 2
1 2
1 2
2 1
2 1
2 2
2 2
2 1
1 2
2 2
1 2
2 2
2 1
2 1
2 2
1 2
1 1
2 2
2 1
1 1
2 2
1 2
1 2
1 2
1 2
2 1
2 2
2 1
1 2
2 2
1 1
2 2
1 1
2 2
1 1
2 1
2 2
1 2
2 1
2 1
2 2
1 2
2 2
1 1
1 1
1 1
2 2
2 1
2 1
2 2
2 1
1 1
1 1
2 1
2 1
2 2
1 1
1 2
2 2
2 2
2 1
2 2
1 2
2 1
2 2
1 1
1 2
1 1
1 2
1 1
2 1
1 2
1 2
2 1
1 2
2 1
2 2
2 2
2 1
2 1
2 1
1 1
1 1
2 1
1 1
1 1
1 2
2 2
2 1
2 1
1 2
1 2
1 1
1 2
1 1
1 1
2 2
1 2
2 2
1 1
1 1
2 1
2 2
1 2
2 2
1 1
2 2
1 1
2 2
2 2
2 1
2 1
2 1
2 1
1 1
1 2
1 2
1 1
1 2
1 1
1 2
1 2
2 1
2 1
1 2
2 2
2 1
1 2
1 1
2 2
2 2
1 1
1 1
2 1
1 1
2 1
2 1
1 2
2 2
2 1
1 1
1 1
2 2
1 2
1 1
1 1
1 2
2 1
2 1
2 2
2 1
2 1
2 2
1 2
2 2
2 1
2 1
2 2
2 1
1 1
2 2
2 2
2 2
2 1
1 2
1 1
2 1
2 2
1 1
1 2
1 2
1 2
1 2
2 1
1 1
1 1
1 2
1 1
2 2
2 1
2 1
1 1
1 1
2 1
2 2
2 1
1 2
1 1
1 2
2 2
2 1
1 2
2 1
1 2
2 1
2 1
1 1
1 2
1 2
1 2
1 2
2 2
2 2
1 1
1 2
2 2
1 2
2 2
2 2
1 2
1 2
1 1
2 1
2 1
1 2
1 1
1 1
1 1
1 2
1 1
1 1
2 2
2 1
2 1
1 2
1 1
1 2
1 1
2 1
1 2
2 2
2 1
2 2
1 1
2 2
1 1
1 2
2 2
1 2
1 1
2 2
1 1
2 2
1 1
2 1
1 1
1 1
2 2
2 2
2 2
1 1
2 2
2 1
2 1
2 1
2 2
1 2
2 1
1 2
1 2
2 1
1 2
2 1
2 1
1 2
2 2
2 1
1 2
2 2
1 2
2 1
2 2
2 2
1 2
1 1
1 2
2 1
2 1
1 2
2 2
2 1
1 1
1 2
1 1
1 2
2 1
2 2
1 2
2 1
1 1
1 2
2 1
2 2
1 2
1 2
1 1
2 1
2 1
2 1
2 1
1 1
2 1
2 2
1 1
2 2
2 1
2 2
2 1
1 1
1 2
1 2
2 2
2 1
2 1
2 1
1 2
1 2
2 1
2 1
2 2
2 2
2 2
1 2
1 1
2 1
2 2
2 1
1 1
2 2
1 1
1 2
2 1
1 1
2 2
1 1
2 1
2 2
1 2
1 2
2 2
1 1
1 1
1 1
2 1
1 2
1 1
2 1
2 1
2 2
2 1
2 1
1 2
2 1
2 2
2 2
1 1
1 2
2 2
2 2
2 2
2 1
2 2
1 1
1 2
1 2
1 2
2 2
1 1
2 1
1 1
2 1
2 2
2 1
1 1
1 1
1 2
2 2
2 2
1 2
1 2
2 1
1 1
2 2
1 1
2 1
2 2
1 1
2 2
2 1
2 1
1 1
2 2
1 2
1 1
1 2
1 2
1 1
1 2
2 2
2 2
1 2
2 1
1 2
1 2
1 2
1 2
1 1
1 1
2 2
1 2
2 1
1 1
2 2
2 1
2 1
1 2
2 2
2 2
2 1
1 2
1 2
1 1
2 2
1 1
2 2
2 1
1 1
2 2
1 1
1 1
1 1
1 1
1 2
2 1
1 1
2 2
1 2
1 2
1 2
2 1
2 2
1 1
2 2
2 1
1 2
1 2
2 2
2 1
2 2
1 1
2 2
2 2
1 1
2 1
1 1
2 1
2 1
2 1
2 2
1 2
2 1
1 2
2 2
1 2
2 1
2 2
2 2
1 1
1 1
1 2
2 1
2 1
2 1
2 1
2 2
2 2
2 1
1 1
2 2
2 2
1 1
1 2
1 2
1 1
1 1
2 1
2 2
1 2
2 2
2 1
2 2
2 1
1 1
1 2
1 1
1 1
2 1
1 2
1 1
1 2
2 2
1 2
2 1
1 2
2 2
1 2
1 1
2 1
2 1
2 2
1 2
1 2
1 1
1 1
2 1
2 2
2 1
2 2
2 1
2 2
1 2
1 2
2 2
2 2
1 1
1 2
1 1
2 2
1 2
1 2
2 1
2 2
2 1
1 2
1 2
1 2
2 1
2 1
2 1
1 2
1 1
1 1
2 1
1 1
2 1
2 1
2 2
2 1
2 1
1 1
1 2
1 1
1 1
1 2
2 2
2 1
1 1
1 1
2 1
1 2
1 2
1 1
1 1
1 1
1 2
2 1
2 2
1 1
1 1
1 1
1 1
1 1
1 1
2 2
1 2
1 1
2 1
2 1
1 2
2 2
2 2
1 1
2 2
1 2
2 1
2 2
2 2
2 1
2 2
2 1
2 2
2 1
2 2
1 1
1 2
2 1
2 2
1 1
1 1
2 2
1 1
2 1
2 1
2 2
2 1
2 1
2 2
1 2
1 2
1 1
2 1
1 1
1 1
2 1
1 2
2 1
2 2
1 1
1 2
2 2
1 1
2 2
1 2
2 1
2 2
1 1
1 1
2 1
2 2
1 2
1 1
1 1
1 2
2 2
2 1
1 1
2 1
1 2
2 1
2 2
2 1
2 2
1 1
2 2
1 2
1 2
2 2
2 2
2 1
1 2
1 1
2 1
1 2
1 2
1 2
1 2
1 2
2 1
1 2
2 2
1 2
1 2
1 1
2 2
1 2
2 1
1 2
1 2
2 2
1 1
1 1
1 1
1 2
1 1
2 1
1 2
2 1
1 2
1 1
2 2
2 2
1 2
1 1
2 2
1 1
2 2
2 2
1 2
1 2
1 2
2 2
2 2
1 2
1 1
2 2
1 1
1 2
1 2
2 2
2 1
1 1
2 1
2 2
1 2
1 2
1 1
1 1
2 1
2 1
2 1
2 2
2 2
2 1
1 1
1 2
2 2
2 1
2 1
1 1
1 2
2 2
1 2
1 2
2 1
1 2
1 2
2 2
1 2
1 2
1 1
1 2
1 1
2 2
1 2
2 1
2 2
2 2
2 2
1 2
1 2
2 1
1 1
2 2
2 2
2 1
2 2
1 2
2 2
1 2
2 1
1 2
1 1
2 1
2 2
2 1
1 2
2 2
2 1
2 2
2 1
1 2
2 2
2 1
1 1
1 1
1 2
2 1
1 2
2 1
1 2
2 2
2 1
1 1
1 1
2 2
1 2
2 1
2 2
2 1
2 1
2 1
1 2
2 1
1 2
1 2
2 1
1 1
1 1
1 1
2 1
1 2
1 2
1 1
2 1
1 2
1 2
2 1
1 2
2 1
2 2
2 2
2 2
2 2
2 2
2 1
1 2
1 2
1 2
2 1
2 2
1 2
2 2
1 1
2 2
1 2
2 1
1 2
2 1
2 2
2 1
2 1
1 1
2 1
1 2
2 1
1 1
1 1
2 1
2 2
1 1
2 1
2 1
2 1
1 2
1 1
2 1
1 1
2 1
1 1
1 2
1 1
2 1
1 1
2 2
1 1
1 2
2 2
1 2
2 1
2 2
2 1
2 1
2 1
2 1
1 2
1 2
2 2
2 2
1 2
1 2
2 1
1 2
2 2
2 1
1 2
2 1
2 2
1 2
2 2
1 1
2 2
1 2
1 1
1 2
1 2
2 2
1 1
1 2
2 2
2 1
2 1
2 1
1 1
2 2
1 2
2 2
2 1
2 1
2 1
2 2
1 2
1 2
2 1
1 1
1 2
2 2
1 1
2 1
1 2
1 1
2 1
2 2
1 2
1 2
2 2
2 2
2 2
2 1
2 2
2 1
2 1
1 1
2 2
1 1
2 1
1 2
2 1
2 2
2 1
2 1
2 2
1 1
2 2
2 1
2 1
1 1
2 2
1 2
2 2
2 2
1 1
1 2
2 2
1 1
2 2
2 1
2 1
1 2
2 2
1 1
2 2
2 2
1 1
1 1
1 2
2 2
1 2
1 1
2 1
2 2
2 2
2 2
1 1
1 2
1 1
1 2
2 1
2 1
2 1
1 2
1 2
2 1
2 1
1 1
1 1
1 1
2 2
2 1
2 2
2 1
1 2
2 2
2 1
2 2
1 1
1 2
1 1
1 2
2 2
1 1
2 1
1 1
2 1
1 1
2 1
2 1
1 1
1 2
2 2
2 1
2 2
2 2
2 2
1 1
1 2
1 1
2 1
2 2
1 1
2 1
2 2
2 2
2 1
1 1
1 2
1 2
1 2
1 2
1 2
2 1
2 2
2 1
2 1
1 2
1 2
1 2
2 1
1 1
1 1
1 2
1 2
2 2
1 2
1 1
1 1
2 1
1 1
2 2
2 2
1 2
1 1
2 1
1 2
1 1
2 1
2 2
2 2
1 1
2 2
2 1
2 2
1 1
2 1
2 2
2 2
2 1
2 2
2 1
2 2
1 1
2 1
2 1
2 2
2 2
2 2
1 1
1 2
2 2
2 1
2 1
1 2
1 2
1 2
2 1
1 1
1 2
1 1
2 2
2 2
1 1
1 1
2 2
1 2
1 2
2 1
1 2
2 2
2 2
2 1
1 1
2 2
2 1
2 1
1 2
2 1
2 1
2 1
2 1
1 2
2 2
1 2
2 2
2 2
1 2
2 1
2 2
1 2
1 2
1 1
2 1
2 2
2 2
1 2
2 2
1 1
1 1
2 2
1 2
2 1
2 1
1 1
2 1
1 1
1 2
1 1
1 1
1 2
2 1
1 2
2 1
1 1
1 1
1 1
2 2
1 1
1 2
1 1
1 1
2 2
2 1
2 1
2 2
1 2
2 2
1 2
2 1
1 1
2 1
1 2
1 2
1 2
2 1
1 1
2 1
2 1
1 1
1 2
1 1
1 2
1 2
1 1
2 1
1 1
1 1
2 2
2 1
1 1
1 1
2 1
2 2
2 2
2 2
1 2
1 2
2 2
1 2
1 1
1 2
2 1
2 2
2 2
2 1
1 1
2 1
2 2
1 1
2 1
2 1
2 1
1 1
2 2
2 2
1 2
2 1
1 2
2 1
1 2
1 2
1 1
1 1
1 1
2 1
2 2
1 1
2 1
1 2
1 2
2 1
2 1
1 1
2 2
1 2
2 2
2 1
2 1
2 2
2 2
2 1
2 1
2 1
1 1
1 1
2 1
2 1
1 1
1 1
2 1
1 1
1 2
2 2
1 1
2 1
2 2
1 2
1 2
1 1
2 1
2 2
2 2
2 1
2 2
1 1
2 1
2 1
1 1
2 1
1 2
2 2
2 1
1 2
1 1
1 2
2 1
2 2
1 2
1 2
1 1
2 1
2 1
1 1
2 2
2 2
1 2
1 2
1 2
2 1
2 2
2 1
1 2
1 2
2 2
1 2
2 1
1 1
2 1
2 2
1 2
2 1
2 2
2 2
1 2
2 1
2 2
2 2
1 1
1 1
1 2
2 1
2 1
2 1
1 1
2 2
2 1
2 1
1 2
2 1
2 2
2 1
2 1
1 2
1 1
1 2
2 2
2 2
1 1
1 2
1 2
2 1
1 1
2 1
1 1
2 1
1 1
1 2
2 2
1 2
2 2
1 1
2 2
1 2
1 2
1 2
2 1
2 1
2 2
1 1
1 2
1 1
1 1
2 1
2 1
1 1
1 1
1 1
1 2
2 2
1 1
1 1
1 1
2 2
1 1
2 1
2 2
1 1
1 2
2 2
1 2
2 2
2 2
1 2
2 1
2 1
1 2
1 2
1 2
2 2
1 1
2 1
2 1
1 2
2 2
2 2
2 1
2 1
2 2
1 2
1 1
2 1
1 2
2 1
2 2
2 1
2 1
1 2
2 1
2 1
1 2
1 2
2 2
1 1
2 1
2 1
1 1
1 2
2 2
2 2
2 1
1 1
2 1
1 2
1 2
2 1
2 2
2 2
2 1
1 2
2 1
2 1
2 1
1 2
2 2
1 1
2 1
1 2
1 2
2 1
2 1
1 2
2 2
2 1
2 1
2 2
1 2
1 2
2 2
1 2
1 2
2 2
2 1
2 1
2 2
1 2
2 2
2 1
2 2
1 1
2 1
1 2
2 2
2 1
1 2
1 2
1 2
2 2
2 2
2 2
1 2
2 1
1 1
2 2
2 2
1 1
2 2
2 1
1 1
1 2
2 1
1 1
1 2
2 2
1 1
2 2
1 2
2 1
2 1
1 2
2 1
1 2
1 1
2 2
1 2
1 2
2 2
2 1
2 1
2 2
2 2
1 1
2 2
2 1
2 2
2 2
1 2
1 2
1 1
1 1
1 2
1 2
2 2
2 2
1 1
1 1
2 2
1 1
2 1
2 1
1 2
1 1
2 2
1 1
1 1
2 2
2 2
2 1
1 1
1 2
2 2
1 1
1 2
1 1
1 2
2 1
2 2
1 1
1 2
1 2
2 1
1 1
1 1
1 1
1 1
1 2
2 1
1 1
1 1
2 2
2 1
2 2
2 2
2 1
1 2
1 1
2 2
2 1
1 1
1 1
1 1
1 2
1 1
2 1
2 1
2 2
1 2
2 1
2 2
1 1
1 2
1 1
1 2
1 1
2 1
2 2
2 2
1 1
2 1
1 2
1 2
2 2
1 1
2 1
1 2
1 1
2 2
2 2
2 1
2 1
2 1
2 1
1 2
1 1
2 2
2 2
2 2
1 2
2 1
1 1
1 2
2 1
2 2
2 1
2 2
2 1
2 1
1 1
1 2
2 1
1 2
1 1
2 2
1 1
2 1
2 1
1 1
2 1
1 2
2 1
1 2
2 1
1 1
1 2
1 2
2 2
2 1
2 2
2 1
1 1
2 2
1 2
1 2
2 1
1 1
2 2
1 1
2 2
1 1
2 1
2 1
1 1
2 1
1 2
1 2
2 2
2 1
2 1
1 2
1 1
2 2
1 1
2 1
1 1
2 1
1 2
2 1
2 2
1 2
2 1
2 1
1 2
1 1
2 1
1 1
1 1
2 1
2 1
1 2
2 2
2 2
2 2
1 2
1 1
2 1
2 2
1 2
2 1
1 2
2 1
2 1
2 2
2 1
1 2
2 1
2 1
1 1
2 1
1 1
2 1
2 1
1 2
1 1
2 1
2 1
2 2
1 2
1 2
2 1
2 1
2 2
1 2
1 1
1 1
1 2
2 1
1 1
1 1
2 1
1 2
1 2
1 1
1 1
2 1
2 1
2 2
1 1
1 1
2 1
2 1
2 1
2 2
1 2
1 1
1 2
2 2
1 1
2 1
1 2
2 2
2 1
1 1
1 1
1 2
2 2
1 1
1 2
1 2
2 1
2 2
1 1
1 1
1 2
2 2
1 1
1 1
2 1
2 1
1 2
2 2
1 1
1 2
1 2
1 2
2 2
2 2
1 2
1 2
1 1
2 2
1 2
2 2
2 2
2 2
2 2
2 1
2 2
1 2
1 2
2 2
1 1
1 2
2 2
1 2
2 1
2 1
1 2
2 2
2 2
1 1
2 2
2 1
1 1
2 1
1 2
2 1
1 2
2 2
1 1
2 1
1 1
1 2
1 1
2 1
2 2
1 2
2 2
1 1
1 1
2 2
1 1
1 2
1 1
2 2
1 1
1 1
1 1
2 2
1 1
1 1
2 1
2 1
1 1
1 1
2 2
1 1
2 1
2 2
1 1
1 2
2 1
2 2
1 2
1 1
1 1
1 1
1 2
1 2
1 1
2 1
2 1
2 2
1 2
2 2
1 2
2 2
1 1
2 2
1 2
2 1
2 1
2 2
2 1
2 2
2 1
2 1
2 2
2 1
1 2
1 1
2 2
1 1
1 1
1 1
2 1
2 2
2 2
1 1
2 1
2 1
1 1
2 2
1 1
1 2
2 2
2 1
1 2
1 1
1 2
1 2
2 1
2 2
1 2
2 2
2 2
2 1
1 2
1 1
2 1
2 2
2 1
1 1
2 2
1 2
2 1
2 2
2 1
1 1
1 1
2 1
2 1
1 2
2 1
2 2
1 1
1 1
1 1
2 1
1 1
1 1
1 2
1 1
1 1
2 2
1 2
1 2
1 1
1 1
1 1
2 2
2 2
1 2
2 2
1 1
1 2
1 2
1 1
1 2
2 1
2 2
1 1
2 1
2 2
1 1
1 1
2 1
2 1
2 2
1 2
2 1
2 1
1 1
1 2
2 2
1 1
1 2
1 2
2 2
2 1
2 1
1 2
2 1
2 2
1 1
2 1
2 2
1 2
1 1
2 2
1 2
1 1
1 2
2 1
1 1
1 1
1 2
2 2
2 1
1 1
1 2
2 1
1 1
1 2
2 1
1 2
1 2
2 2
1 2
2 1
1 2
1 1
2 1
2 2
1 1
2 2
1 2
2 1
1 1
2 2
2 1
2 2
1 2
1 2
2 1
2 2
1 2
2 2
1 2
2 2
1 1
1 1
2 1
1 1
2 1
2 2
1 1
2 1
2 2
2 2
2 1
1 2
1 2
2 2
1 2
1 1
1 2
2 1
2 2
2 2
1 1
2 2
1 1
2 2
2 2
1 1
1 1
2 2
2 2
2 1
2 2
2 1
1 1
2 1
2 1
2 2
2 1
1 2
2 1
2 2
1 1
1 1
1 1
2 2
2 2
1 2
1 1
1 1
2 1
1 1
1 2
2 2
2 1
1 1
1 1
2 2
2 2
1 1
2 1
2 2
1 2
1 1
2 1
1 1
2 2
1 1
2 1
2 1
1 2
1 1
2 2
1 1
1 1
2 1
2 1
2 1
1 1
1 2
1 2
2 2
1 1
2 2
1 1
1 2
2 2
1 2
2 1
1 2
2 2
2 1
1 1
1 2
1 1
1 2
1 1
1 2
2 1
1 1
1 2
2 1
2 1
1 2
1 2
1 2
1 1
2 1
1 2
1 2
1 2
1 2
1 1
2 2
2 1
2 2
1 2
1 2
1 2
1 1
2 1
2 2
2 1
1 2
1 2
2 1
2 1
2 1
2 1
1 1
1 1
2 1
2 2
2 2
1 2
1 2
1 1
1 1
2 1
2 1
2 2
1 1
1 2
1 2
2 1
2 2
2 1
1 1
1 2
1 1
2 1
1 2
2 2
2 1
1 1
2 2
2 1
2 2
2 1
1 1
2 2
2 2
1 1
1 2
2 1
2 2
2 1
1 2
2 2
2 2
2 2
1 2
1 2
1 1
2 2
2 1
2 1
1 1
1 2
2 2
1 2
2 2
1 1
1 1
1 2
2 2
1 2
2 1
1 1
2 2
1 2
1 1
2 1
1 2
2 2
2 1
2 1
1 2
2 2
1 2
2 2
1 2
1 1
1 1
1 2
1 2
2 1
1 2
1 2
1 1
2 1
1 1
1 2
1 2
1 2
2 1
1 1
1 2
2 1
2 1
2 1
2 1
2 1
1 1
1 2
1 2
1 2
2 2
2 2
1 1
2 2
1 2
1 2
2 2
1 2
1 2
2 2
2 1
1 1
1 1
1 1
1 2
1 2
1 2
1 2
1 1
2 1
2 2
1 2
1 1
2 2
2 2
2 1
2 1
2 2
1 2
2 1
2 2
2 2
1 2
1 2
2 1
2 2
2 2
2 1
2 1
1 1
2 1
2 1
2 1
1 1
1 1
1 2
2 1
2 1
1 1
2 1
2 2
1 1
1 1
2 1
1 2
1 2
2 1
2 1
1 2
2 2
1 2
1 1
1 2
2 1
1 2
1 1
1 1
1 1
2 2
2 2
1 1
1 1
1 2
1 1
2 2
1 1
2 2
1 1
1 2
2 1
1 1
1 1
2 2
1 1
1 2
1 2
1 2
1 1
2 2
1 2
1 1
1 1
1 2
2 1
2 1
2 1
2 1
1 2
2 2
2 2
1 1
2 1
1 1
2 2
1 2
1 2
1 1
1 1
1 2
2 2
1 2
2 1
2 1
1 1
2 2
2 1
2 1
2 1
1 1
1 2
1 1
1 2
1 2
2 2
2 2
1 1
2 1
2 2
1 1
1 2
2 1
1 1
1 2
2 1
1 2
2 1
1 2
1 2
2 2
1 2
2 2
2 1
2 2
2 2
1 1
1 2
2 2
1 2
2 1
1 1
2 1
2 1
2 1
2 2
1 1
1 1
1 1
1 1
1 2
1 1
2 2
2 1
2 2
2 1
2 1
2 1
2 1
2 1
2 2
2 1
2 2
2 2
1 1
1 1
2 2
2 1
2 2
2 1
2 2
1 1
1 1
1 2
2 2
2 2
2 2
2 2
2 2
1 1
2 1
1 2
2 2
1 2
1 2
2 2
2 2
2 1
2 2
2 2
1 2
2 2
1 2
1 2
2 2
2 2
1 2
2 1
1 2
1 2
2 1
1 2
2 1
2 2
2 1
1 1
1 2
1 2
2 1
2 1
1 1
2 1
1 2
1 2
2 1
1 1
1 2
2 2
2 2
2 1
2 1
1 2
1 2
1 2
2 1
2 2
2 1
2 2
2 2
1 2
2 2
1 1
2 1
1 2
1 1
1 1
1 2
2 1
2 2
1 1
2 1
2 1
1 1
1 2
1 1
2 2
2 1
2 2
1 1
1 1
2 1
1 1
2 1
1 2
2 1
2 1
1 2
1 2
1 1
2 2
2 1
1 1
1 2
1 1
2 2
1 1
1 2
1 1
2 2
1 1
2 1
1 2
1 1
1 1
2 2
2 2
1 2
1 2
2 2
1 2
1 1
1 2
1 1
1 2
2 2
1 2
2 2
1 1
2 2
2 2
2 2
2 1
2 1
1 2
2 2
1 1
2 2
2 1
2 1
1 2
1 2
2 1
2 2
1 1
2 1
2 1
2 1
1 1
2 2
2 1
1 2
1 1
1 2
1 1
2 2
1 2
2 2
2 1
2 1
1 2
1 2
1 2
2 2
1 2
2 1
1 1
2 1
1 1
1 2
2 2
2 2
2 2
2 2
2 1
2 1
2 1
1 1
1 1
2 2
2 1
1 2
1 1
2 2
2 2
2 1
2 2
2 2
2 2
1 2
1 1
2 1
2 1
2 1
2 1
2 2
1 2
2 1
1 2
2 2
2 2
2 1
2 1
1 2
2 1
1 1
1 1
1 2
2 1
1 1
2 2
2 2
1 1
1 2
1 1
1 2
2 1
2 2
1 1
1 2
1 1
1 1
2 1
1 2
2 1
2 2
1 2
1 2
2 1
2 2
2 2
1 2
1 1
2 1
1 1
2 1
1 1
1 1
1 2
2 2
2 2
1 1
2 1
1 1
1 1
1 1
1 1
1 2
1 2
1 1
1 1
1 1
1 2
1 1
2 1
2 2
1 1
1 1
1 2
2 2
2 1
1 1
2 2
2 2
1 2
1 1
1 1
2 2
2 2
2 1
2 2
2 1
1 1
2 1
1 2
2 1
2 2
1 1
1 1
2 2
2 1
1 1
2 2
1 2
2 1
2 2
2 2
1 2
2 2
2 2
2 1
1 1
2 2
2 2
1 2
1 2
2 2
1 1
2 2
1 1
2 2
1 1
2 1
2 2
1 1
2 2
1 1
2 1
2 2
1 2
1 2
2 1
2 2
2 2
1 1
2 2
2 2
2 2
1 1
1 2
2 1
2 1
1 2
1 1
2 1
2 2
2 2
1 1
1 1
2 1
2 2
1 2
1 2
2 2
2 1
2 1
1 1
1 2
1 1
1 1
2 2
2 2
2 2
2 2
1 2
2 1
1 1
1 2
2 1
2 1
1 1
2 1
1 2
1 1
1 2
1 1
2 1
1 2
1 2
2 1
2 2
2 2
2 2
2 1
1 2
1 2
1 1
2 2
1 2
1 1
2 2
1 2
2 2
1 2
1 2
2 2
1 2
2 1
2 2
1 2
1 1
1 1
1 2
1 2
1 2
1 1
2 2
1 1
2 2
2 2
1 1
2 2
1 2
2 2
1 2
1 1
1 2
1 1
1 2
1 2
1 2
1 1
1 1
2 1
1 2
1 1
2 2
1 1
1 2
1 2
2 1
1 2
1 1
1 1
1 2
1 1
2 1
1 2
1 2
1 2
2 2
2 1
1 2
2 2
1 2
2 2
2 2
2 1
2 1
2 2
1 1
2 2
1 1
2 2
1 2
2 1
1 1
2 1
1 1
1 1
2 2
1 2
2 2
2 1
1 1
2 1
2 1
1 1
2 2
2 1
1 1
1 2
1 2
1 2
1 1
1 2
2 2
2 1
2 2
2 1
2 1
1 2
2 2
2 2
2 1
2 2
2 1
1 1
1 2
1 1
1 1
1 2
2 1
2 1
2 1
2 2
2 1
1 1
2 2
2 1
1 1
1 2
1 1
2 2
2 2
1 1
1 2
1 1
1 2
1 1
1 1
2 2
1 2
1 2
1 1
1 1
1 2
2 2
2 2
1 2
2 1
1 1
2 1
1 2
2 2
1 2
1 1
2 1
1 1
2 1
2 1
1 2
1 1
1 1
2 1
2 2
1 1
2 1
1 2
2 1
2 2
1 2
1 2
1 1
1 2
1 1
1 1
1 1
1 2
2 1
1 2
2 1
1 2
1 2
2 2
1 2
2 2
1 2
1 1
2 1
1 2
1 2
2 2
2 1
2 2
1 2
2 2
1 1
2 1
1 1
1 1
2 1
2 1
2 2
1 1
1 1
1 1
1 2
1 2
2 1
2 2
2 1
2 1
2 2
2 2
1 1
2 1
2 1
2 2
2 1
1 2
1 2
2 1
1 2
1 2
2 1
2 1
2 2
2 1
2 1
2 1
1 2
1 2
1 2
2 2
1 1
2 2
1 2
2 2
1 1
1 1
1 1
1 2
1 2
1 2
2 1
2 1
2 1
1 2
1 2
1 1
1 2
2 2
2 1
2 1
1 1
1 1
1 1
2 2
1 1
1 2
2 2
1 1
2 1
1 1
1 1
2 2
1 2
2 1
1 1
1 1
1 1
2 1
2 1
2 1
2 1
2 1
1 1
1 2
2 1
1 2
1 1
1 2
2 1
2 1
1 1
2 1
2 2
2 2
2 1
2 2
1 1
1 1
2 2
2 1
1 2
2 1
1 2
1 2
1 2
1 1
2 2
2 1
1 1
2 2
2 2
1 1
2 2
1 2
1 2
1 2
1 1
1 1
2 2
2 1
1 1
1 1
2 1
1 1
1 2
1 2
2 1
2 2
1 2
2 2
2 1
1 1
2 2
1 1
2 1
1 2
1 2
2 2
2 2
2 2
1 2
1 2
1 2
2 1
2 1
1 2
2 1
2 2
1 2
2 2
2 1
1 2
1 1
2 1
1 1
2 1
2 2
2 1
2 1
1 1
1 1
2 1
2 1
2 1
1 1
2 1
2 1
2 1
1 2
1 1
2 2
2 1
1 1
2 2
1 1
1 1
2 1
2 1
1 2
1 2
1 1
1 1
1 2
1 2
1 1
2 2
1 1
2 1
2 2
2 1
1 1
1 2
2 2
1 1
1 1
2 2
1 2
2 2
1 2
1 1
1 2
1 2
1 1
1 1
2 1
2 1
1 1
1 2
1 1
2 2
1 1
2 1
1 2
2 1
1 1
1 1
2 2
1 1
1 1
1 1
1 1
2 1
1 2
2 2
2 2
2 1
2 1
2 2
2 2
1 2
1 2
2 2
2 1
1 2
1 1
1 1
1 2
2 2
2 1
1 2
2 1
2 2
2 2
1 1
1 1
1 2
1 2
1 1
2 2
1 2
1 2
2 2
2 2
2 2
1 1
2 1
1 2
1 1
2 2
2 2
1 1
1 1
2 2
2 1
1 2
1 2
2 1
2 2
2 1
1 2
2 2
2 1
2 2
1 2
1 1
1 2
2 1
2 1
1 1
1 1
1 1
2 2
2 1
1 2
1 1
2 1
1 1
1 1
1 2
1 1
2 1
1 2
1 1
2 1
2 2
1 1
1 1
1 1
1 1
2 1
1 2
2 1
1 2
2 1
1 1
1 1
2 2
1 1
2 2
1 1
1 1
1 2
2 1
2 2
1 2
2 2
2 1
1 2
1 1
1 1
2 1
1 2
2 1
2 2
1 1
1 2
1 2
1 2
1 2
1 2
1 1
1 2
1 1
1 1
2 1
1 1
2 1
1 1
2 1
2 1
1 1
1 2
1 1
1 1
2 1
1 1
1 1
2 2
2 2
2 2
1 2
1 2
2 1
1 1
1 1
2 1
1 1
1 1
2 1
2 1
2 2
1 1
1 2
1 1
2 2
1 1
1 2
1 1
2 2
2 1
1 1
2 1
2 1
2 1
1 1
1 2
1 1
2 1
1 2
2 2
2 1
2 1
2 2
1 2
1 1
1 1
2 1
1 1
2 1
2 1
2 1
2 1
2 2
1 1
2 1
1 1
1 2
1 2
1 2
1 1
2 1
1 2
2 2
1 2
1 1
2 1
1 1
1 2
2 2
1 1
2 2
2 2
1 2
2 1
1 1
1 1
1 2
2 2
1 2
2 2
1 2
2 2
1 2
2 2
1 1
1 1
2 2
1 1
2 1
1 1
2 2
2 2
2 2
1 2
2 2
1 1
1 2
2 1
1 1
1 1
2 1
2 2
2 2
2 1
2 1
2 1
1 2
1 2
2 2
2 2
1 1
2 2
2 1
2 1
2 2
2 2
2 2
1 2
1 1
1 1
1 1
1 1
2 2
1 2
1 1
1 1
1 1
1 2
1 1
1 2
1 1
2 1
1 1
2 1
1 2
1 2
1 2
1 2
1 2
2 1
2 1
2 1
2 2
2 1
1 1
1 2
1 1
2 1
1 2
2 1
2 1
2 1
2 1
1 2
1 1
2 2
1 2
2 2
2 1
2 2
1 1
1 2
2 1
2 1
1 1
2 2
1 1
1 1
1 1
2 2
1 1
2 1
2 1
1 2
2 1
2 1
1 1
2 2
1 2
1 1
1 1
1 2
1 2
2 2
2 2
1 2
1 2
2 1
2 1
2 2
1 2
1 1
2 2
2 2
2 2
2 2
1 1
2 2
2 1
2 2
1 1
2 1
1 1
2 2
2 2
2 1
1 1
1 2
2 1
2 1
2 1
1 2
2 2
1 1
1 1
1 2
1 2
2 2
2 2
1 1
1 2
2 1
1 2
2 1
1 2
2 2
1 1
1 1
1 2
1 1
1 2
1 1
2 1
1 2
2 1
1 1
2 2
2 1
1 2
2 1
1 1
2 2
2 2
1 2
1 2
1 1
2 2
2 1
2 2
2 2
2 1
1 2
1 1
1 1
2 2
2 2
2 2
2 2
1 1
2 1
1 1
2 1
2 2
1 2
1 1
2 2
1 1
1 1
2 1
1 2
2 2
1 1
1 1
1 1
2 2
1 2
2 1
2 2
1 2
1 1
1 2
2 2
1 1
1 2
2 1
1 2
1 1
2 2
1 1
2 1
1 1
2 2
1 2
2 2
1 1
1 1
1 2
2 1
1 2
1 2
1 1
1 2
1 1
1 1
1 1
1 2
2 1
2 2
2 2
1 1
1 2
1 2
1 1
2 2
1 1
1 1
1 2
1 1
2 2
1 2
2 1
1 2
2 1
2 2
1 2
2 2
2 2
1 2
1 1
1 2
1 2
2 1
1 2
2 2
2 1
1 2
1 2
1 2
1 2
2 2
2 1
2 1
2 1
1 2
1 2
1 2
1 2
2 1
1 1
1 2
1 1
1 1
1 1
2 1
2 1
2 2
1 2
1 1
1 1
2 1
1 1
1 1
2 2
2 1
1 2
1 2
2 2
1 2
2 1
2 2
1 2
2 2
1 2
1 2
2 2
2 2
2 1
2 1
2 2
2 2
1 2
2 1
2 2
2 1
1 2
2 1
1 2
2 1
2 1
1 2
2 2
2 2
2 1
2 1
2 1
2 1
2 1
2 2
1 1
1 1
2 1
2 1
2 1
1 2
2 1
1 1
2 2
2 2
2 2
2 1
2 2
2 2
1 1
2 2
1 2
1 1
2 2
1 1
2 2
1 1
2 2
1 2
2 2
2 2
1 1
2 1
2 1
2 1
2 1
1 1
1 1
2 1
1 2
2 2
1 1
1 1
2 1
2 2
2 1
1 1
1 1
2 2
1 1
2 1
2 1
2 2
1 1
2 1
2 1
1 2
2 2
2 1
2 1
1 1
2 2
2 1
1 2
2 2
2 1
1 1
1 1
1 1
1 2
2 1
1 2
1 2
1 1
2 1
1 1
1 1
1 2
1 1
1 1
2 1
1 1
2 1
1 1
2 2
2 1
2 1
2 1
1 1
1 2
2 1
1 1
1 1
1 2
1 2
1 1
2 2
1 2
1 1
1 2
2 1
2 2
2 1
2 2
1 2
2 1
2 1
1 2
1 1
2 2
1 2
1 2
2 2
1 1
2 1
1 2
1 1
2 1
1 1
2 2
2 2
2 1
2 1
2 1
2 2
1 2
2 2
1 2
1 1
2 2
2 2
1 1
1 2
2 1
2 2
1 2
1 2
2 2
2 2
1 2
2 2
1 1
2 1
2 1
1 2
1 1
1 2
1 1
1 2
1 1
2 1
1 1
1 1
2 1
1 1
1 2
1 1
1 2
1 2
2 1
1 2
2 1
1 2
1 2
1 2
1 1
1 2
1 2
1 2
1 1
2 1
2 2
2 2
1 2
2 1
2 2
1 1
2 1
2 2
1 2
2 2
2 1
2 2
2 2
1 2
1 1
2 1
1 1
1 2
1 2
2 2
2 2
1 2
1 1
2 1
1 1
1 2
1 1
1 2
1 1
1 2
1 1
1 2
1 2
1 2
2 1
1 1
2 1
1 2
1 1
1 1
1 1
2 1
1 1
1 2
1 2
2 2
2 2
1 1
2 1
1 1
1 1
2 1
1 2
1 1
2 1
1 1
2 2
2 2
2 1
1 2
1 2
1 1
1 1
1 2
2 2
2 1
1 1
1 2
2 2
2 2
1 1
2 1
1 2
2 1
1 1
1 2
1 2
2 1
2 1
1 1
2 1
2 2
1 2
1 2
1 1
2 1
2 2
1 2
1 2
2 1
2 2
2 1
2 1
1 1
2 2
2 2
1 1
1 2
2 1
1 1
2 1
2 1
2 1
1 1
2 2
1 1
1 1
2 2
2 1
1 1
2 2
2 1
2 2
1 1
1 1
1 2
1 2
1 2
1 1
1 1
1 1
1 1
2 1
2 1
2 1
2 1
1 2
1 2
1 1
1 2
1 1
1 1
2 2
2 1
2 2
1 1
1 1
2 1
2 1
2 2
1 2
1 1
1 2
2 1
2 2
1 2
1 2
2 2
2 2
1 2
2 2
2 1
2 2
1 2
2 2
2 2
2 2
1 2
1 1
1 2
1 2
2 1
2 1
1 2
1 1
2 2
2 1
1 2
2 2
2 2
2 1
1 1
1 2
1 1
2 2
2 1
1 2
2 1
2 1
1 1
2 1
1 1
2 1
1 1
1 1
1 1
2 2
1 2
1 2
2 2
1 2
2 2
1 2
1 2
1 1
1 2
1 2
1 1
2 2
2 1
2 2
2 2
1 1
2 2
2 2
2 1
2 2
2 2
2 2
1 2
1 1
2 2
2 2
2 1
1 2
2 1
1 1
1 1
1 1
2 2
2 1
2 1
2 2
2 2
2 1
1 2
1 2
2 1
1 1
2 1
2 2
1 1
1 1
1 2
2 2
1 1
2 1
1 2
1 2
1 2
2 2
2 2
2 1
1 2
1 2
2 1
1 1
1 2
1 2
2 1
2 1
2 2
1 1
2 1
2 1
2 2
2 2
1 1
2 1
2 2
2 1
2 1
1 1
2 1
2 1
2 2
1 2
2 2
1 2
2 2
2 1
1 2
1 2
1 2
1 2
1 1
1 2
2 1
2 2
2 2
2 1
2 2
1 2
2 2
2 2
2 1
1 2
1 1
2 2
2 1
2 1
2 2
2 2
1 1
2 2
2 1
2 2
1 1
1 1
1 2
2 2
2 1
1 2
2 1
1 1
1 1
2 1
1 2
1 2
1 1
1 2
2 2
1 1
1 1
2 2
2 2
2 1
2 1
2 1
1 2
1 2
2 1
2 2
1 1
2 2
1 1
2 2
2 1
2 2
2 2
1 2
1 1
2 1
1 2
2 1
2 2
1 1
2 2
1 2
1 1
1 2
1 2
1 2
1 2
2 1
2 2
1 2
1 2
2 1
1 2
2 1
2 2
1 1
1 2
2 2
2 2
1 1
1 2
1 1
2 1
2 2
2 1
1 1
2 1
2 2
2 2
2 1
2 2
1 1
1 2
2 1
1 2
2 1
1 2
2 1
2 1
1 1
1 2
1 2
1 2
2 1
2 1
1 2
2 2
2 2
2 1
1 1
2 1
1 1
2 1
2 2
2 2
1 1
2 2
2 1
2 2
2 2
1 2
2 2
2 1
1 1
1 2
2 1
1 1
2 1
1 2
1 2
1 1
1 1
1 1
2 1
2 2
1 1
2 2
1 1
2 1
2 1
2 1
2 2
2 1
1 2
1 2
2 2
1 1
1 2
1 2
2 1
2 1
1 1
1 1
1 1
2 1
2 1
2 1
2 2
2 2
2 1
1 1
1 2
2 2
1 1
2 1
2 2
1 2
2 1
1 1
2 1
2 2
2 2
1 2
1 2
1 2
2 1
2 1
1 2
1 2
1 1
1 2
2 2
1 2
2 2
1 2
1 1
1 1
2 1
2 1
1 2
2 2
1 1
2 1
1 2
2 2
2 2
1 1
2 2
2 2
1 2
2 1
1 1
1 2
2 2
2 1
2 2
1 1
2 2
2 2
1 1
1 2
1 1
1 2
2 1
1 1
1 1
2 2
1 1
1 1
1 2
2 1
1 1
2 1
1 1
2 2
2 2
1 2
2 2
1 1
1 1
1 1
2 2
2 2
1 2
2 2
1 1
2 2
2 1
1 1
2 2
1 1
2 1
2 1
1 2
1 2
1 2
2 2
1 1
1 2
1 2
1 1
2 1
2 1
2 2
1 2
1 1
2 2
2 2
2 1
2 2
1 1
2 2
2 2
2 2
2 2
2 1
2 2
2 1
1 1
2 2
1 2
1 2
1 1
1 1
2 2
1 2
1 2
1 1
2 2
2 1
2 2
1 1
1 2
2 2
1 1
2 2
2 2
2 1
2 2
1 1
2 1
1 1
1 2
2 2
2 1
2 1
2 2
2 1
2 2
2 1
1 2
2 2
1 2
2 2
2 1
2 2
1 2
1 2
2 1
2 2
2 1
1 1
1 2
1 2
2 1
2 2
1 2
1 2
1 2
2 2
1 1
1 2
1 1
2 1
1 2
1 2
1 1
2 1
1 2
1 2
2 1
1 2
2 2
1 1
1 2
1 2
1 1
1 1
1 2
2 1
2 2
2 1
2 2
1 1
1 2
1 1
1 2
2 2
2 2
2 2
2 1
2 2
1 1
2 1
2 1
2 1
1 1
1 2
2 1
2 1
2 2
2 1
2 1
2 1
2 1
2 1
2 1
1 2
1 1
1 2
1 1
1 2
2 2
1 2
2 1
1 2
1 2
2 2
2 2
1 1
2 2
2 1
1 1
2 2
1 1
1 1
2 2
2 1
1 2
1 2
2 1
2 2
2 2
2 1
1 2
2 1
1 1
2 2
1 1
1 2
1 1
2 2
2 2
1 1
2 1
1 2
1 1
1 1
1 1
1 2
2 2
2 1
1 1
2 2
1 2
2 2
2 2
1 2
1 2
2 2
1 2
2 2
1 1
1 1
1 1
1 2
1 2
1 1
1 1
1 1
1 2
2 1
2 1
2 1
2 1
1 2
1 2
1 1
2 2
2 2
2 1
1 1
2 2
2 1
2 2
1 1
2 1
2 1
2 2
2 1
2 1
1 1
1 1
2 1
2 2
2 2
2 2
1 2
1 2
2 2
1 1
1 1
2 1
2 2
1 2
1 1
2 1
1 2
1 2
2 1
2 1
1 1
1 2
2 2
2 2
2 2
2 2
2 1
1 2
2 2
1 1
1 2
2 2
1 1
1 2
1 1
1 1
1 1
1 1
2 2
2 1
2 1
1 2
2 2
1 2
1 2
2 1
2 1
2 2
1 1
2 2
1 1
1 1
2 1
1 2
1 2
1 1
2 2
2 2
1 2
1 2
2 1
2 1
2 2
2 2
2 1
2 1
1 2
2 1
1 2
2 2
1 2
1 1
2 2
1 2
1 2
2 2
1 2
1 2
1 1
1 1
2 1
2 2
2 1
1 1
1 1
2 2
1 2
1 2
2 2
1 1
1 1
1 2
2 2
1 1
2 2
2 1
1 2
1 2
1 2
2 1
2 1
1 2
2 2
1 1
2 2
2 2
2 2
2 2
2 1
1 1
1 1
1 1
2 1
2 2
1 1
1 1
1 1
2 1
2 1
2 2
1 1
1 2
2 1
1 1
1 2
2 1
2 2
2 1
2 2
1 2
1 1
1 2
1 1
2 2
2 2
2 1
1 2
2 1
1 1
1 2
1 1
2 1
2 1
2 1
2 1
1 1
2 2
2 2
2 2
2 2
2 1
1 2
2 1
2 1
2 2
2 1
1 2
1 1
2 2
2 1
1 2
1 2
1 1
2 1
2 1
2 2
2 1
1 2
2 1
1 2
1 2
2 2
2 2
2 1
2 2
2 1
2 2
1 2
1 2
1 2
1 2
1 2
1 2
1 1
1 2
2 2
2 2
2 1
2 2
1 1
1 2
1 2
1 1
2 1
1 2
1 2
1 2
2 2
1 2
2 2
1 2
2 2
1 2
2 2
1 1
1 1
2 1
1 1
1 1
2 1
2 2
1 1
2 2
1 2
2 1
2 1
1 2
1 1
2 1
1 1
1 1
2 2
1 1
2 2
1 1
1 2
2 2
2 1
1 1
1 1
2 1
1 1
1 1
1 1
1 2
2 1
1 2
2 2
2 1
2 1
2 1
1 1
1 1
1 2
1 2
2 1
1 2
1 1
1 2
2 1
2 1
1 1
1 2
1 2
1 2
1 1
2 1
1 2
1 1
2 2
2 2
1 2
2 2
2 1
2 2
2 2
2 1
2 2
2 2
2 1
1 1
2 1
2 1
1 1
2 2
2 1
2 1
2 1
1 2
2 2
1 2
1 2
1 1
2 2
1 1
2 2
2 1
2 1
2 1
2 2
2 2
1 2
1 1
1 2
1 2
2 2
2 1
1 2
2 2
1 2
1 1
2 2
1 2
1 2
2 2
1 1
2 2
2 2
1 1
1 2
2 1
2 1
1 2
1 2
2 1
2 1
2 1
1 2
2 2
1 1
2 1
1 1
2 2
1 2
1 2
1 1
2 2
1 2
2 1
2 1
1 2
2 1
1 2
1 2
1 2
1 2
2 2
2 1
1 2
2 2
2 2
2 2
1 2
2 2
2 1
1 1
2 2
2 2
1 2
1 1
2 1
2 1
2 2
2 1
2 2
1 1
1 1
2 2
1 2
1 1
2 2
2 2
1 2
2 2
1 2
1 2
2 2
1 1
1 2
1 2
2 2
2 1
2 2
1 1
2 2
1 1
1 2
1 2
2 1
1 1
1 1
2 2
1 1
2 1
2 1
2 1
2 1
1 2
2 2
1 2
2 1
1 2
1 2
1 1
1 1
1 2
2 1
1 1
1 2
1 2
1 2
1 2
2 1
1 2
1 2
1 1
2 1
2 1
2 1
1 2
2 1
1 1
2 1
2 2
2 1
1 2
1 1
2 1
2 2
2 2
1 1
2 2
2 2
2 1
2 1
1 2
2 1
2 2
1 2
1 1
2 1
1 1
1 2
1 1
2 2
1 1
1 2
2 2
2 2
2 2
2 2
2 2
1 2
2 2
2 1
2 1
1 2
1 2
1 1
2 2
2 2
2 2
2 1
2 2
2 1
1 2
2 1
1 1
1 1
2 1
2 1
2 1
1 1
2 2
1 2
1 1
2 2
2 1
1 1
2 2
2 1
1 1
1 2
1 1
1 2
2 1
1 1
2 1
1 2
1 1
1 1
2 1
2 2
2 1
2 1
2 1
2 2
2 2
1 2
2 1
2 1
1 1
2 2
1 1
1 1
1 1
2 2
1 1
1 1
2 2
1 2
2 2
1 1
2 2
1 2
2 1
1 2
1 2
1 1
1 2
1 2
1 1
1 1
1 1
1 1
2 2
1 1
2 2
2 1
2 2
2 2
2 2
1 2
2 2
1 2
2 2
1 1
2 2
2 2
2 1
1 1
2 2
2 1
1 2
1 2
2 1
1 2
2 1
1 2
2 1
1 1
2 2
1 2
1 1
2 2
1 2
1 2
1 2
2 2
1 1
1 1
2 1
1 1
2 2
2 2
2 1
1 1
1 2
1 1
1 1
2 1
1 1
2 2
2 2
1 1
2 2
1 1
2 1
2 2
1 1
1 1
2 1
1 2
1 1
2 2
1 2
2 2
2 2
2 1
1 2
2 2
2 2
2 2
1 1
1 2
1 2
2 2
1 1
2 1
2 2
2 1
2 2
2 1
2 1
1 2
2 1
2 1
2 2
1 1
1 1
1 2
2 1
1 2
2 1
1 2
2 1
2 1
2 2
2 1
1 1
1 2
2 1
2 1
1 1
2 2
1 2
2 1
1 1
2 1
1 2
2 1
2 2
2 2
2 2
1 1
1 1
1 1
1 1
2 1
2 2
1 1
2 2
1 1
2 1
2 1
1 2
1 2
1 1
2 1
1 2
1 1
2 1
2 2
2 1
2 1
2 1
2 2
1 1
1 2
2 1
1 2
2 2
2 2
1 2
2 2
2 2
1 1
1 2
2 1
1 1
1 1
1 1
1 1
2 2
2 2
2 1
2 1
1 2
2 1
1 1
2 2
2 2
2 2
1 2
1 2
1 1
1 1
2 1
2 2
2 2
2 1
1 1
1 2
2 2
1 2
2 1
1 2
1 2
2 1
2 1
1 2
1 1
2 1
2 1
2 1
1 2
2 1
1 1
2 2
1 2
1 2
2 1
1 1
1 1
1 1
1 1
1 1
1 2
2 1
2 2
2 1
2 1
1 1
1 2
2 2
2 1
2 1
2 2
2 1
1 1
1 1
1 1
1 2
2 2
2 1
1 2
1 1
1 1
1 2
1 2
2 2
2 2
2 2
1 1
1 1
2 1
1 1
1 1
1 1
1 2
2 1
1 1
1 2
1 2
2 2
1 1
1 1
1 1
1 2
1 1
1 1
2 2
2 2
2 2
2 2
1 1
1 1
1 1
1 1
2 2
2 2
2 2
2 2
1 2
1 1
2 1
1 1
2 1
2 2
2 2
1 2
1 1
2 1
2 1
1 1
1 1
1 2
2 2
1 2
2 1
1 1
2 1
1 1
1 1
2 1
1 2
1 2
1 2
2 1
1 2
1 1
1 2
1 2
2 1
2 2
1 2
2 2
2 2
1 1
1 1
1 2
1 1
1 2
2 2
1 2
2 2
2 1
2 1
2 1
2 2
1 2
2 2
1 2
2 2
1 2
1 1
1 2
2 2
1 1
2 1
2 1
1 2
1 2
1 1
2 2
1 2
1 2
2 2
2 1
2 2
1 2
2 1
2 2
1 1
2 2
1 2
2 1
1 2
2 1
1 1
2 2
2 1
2 1
2 1
2 1
2 1
2 2
1 2
1 2
1 1
2 2
1 2
1 1
1 1
1 1
2 2
1 2
1 2
2 2
1 1
1 1
2 1
2 1
2 2
1 1
2 2
1 1
2 1
2 1
2 1
2 1
2 1
1 2
2 2
1 1
1 2
2 2
1 2
1 2
1 2
2 1
1 2
2 1
1 1
2 2
1 2
2 2
2 2
2 1
1 2
2 2
1 1
1 2
2 1
1 1
1 1
1 1
1 2
1 2
1 1
2 1
1 2
2 1
2 2
2 2
2 2
1 2
1 1
2 1
2 2
1 2
2 1
1 1
2 2
2 2
2 2
1 1
2 2
1 1
1 1
1 2
1 1
2 1
2 2
2 1
2 2
1 1
1 1
2 2
2 1
1 1
1 2
2 2
1 1
1 2
1 2
1 1
1 2
1 1
2 1
1 2
1 2
2 2
1 2
2 1
1 2
1 1
1 1
2 2
2 2
1 1
1 1
2 1
2 2
1 1
1 1
2 1
1 2
1 1
1 2
2 1
2 2
2 2
1 2
2 1
2 1
1 2
1 2
2 1
2 2
1 1
2 1
2 1
1 1
1 2
2 1
1 1
1 1
2 2
1 2
1 1
1 1
2 2
2 1
2 2
2 2
2 2
1 1
2 1
1 2
1 2
1 1
1 1
2 2
2 2
1 1
2 1
1 1
1 1
2 1
2 1
2 2
2 1
1 1
1 1
2 1
2 2
2 1
1 2
1 1
1 2
1 1
1 2
2 1
1 1
1 2
1 2
2 2
2 2
2 1
2 1
1 1
1 2
1 2
2 2
2 2
2 2
1 2
1 1
2 2
1 1
2 2
1 1
1 1
1 1
1 1
2 1
2 2
2 2
2 2
1 1
1 2
1 1
2 1
2 2
1 2
1 2
1 1
1 2
1 1
2 2
1 1
2 2
2 1
2 2
2 1
2 1
1 2
2 2
1 2
2 1
1 1
1 2
1 1
2 1
1 1
1 2
2 2
1 2
1 2
1 2
1 2
1 1
2 2
1 1
1 2
2 2
2 2
1 2
2 2
1 2
2 2
1 1
2 2
2 2
2 2
2 1
2 1
1 2
2 2
1 2
1 2
2 2
2 2
1 2
1 1
1 1
2 1
2 1
1 2
2 1
1 1
2 2
1 2
2 1
1 1
1 2
1 1
1 1
1 1
1 1
2 2
1 2
2 1
1 2
1 1
2 2
1 2
1 2
2 2
2 1
1 1
1 1
2 2
2 1
2 1
1 1
2 1
2 1
1 2
1 1
1 1
1 1
1 1
1 2
1 1
2 1
1 2
2 1
2 2
1 1
2 1
1 2
2 1
2 1
1 1
2 2
2 1
1 2
1 2
1 1
1 2
2 2
1 1
1 1
1 2
2 2
2 1
1 2
1 1
2 1
2 1
1 2
2 2
1 1
2 2
2 2
2 1
2 2
1 2
1 2
2 2
1 2
2 1
1 2
1 2
1 1
2 2
2 1
2 2
1 1
2 2
1 2
2 1
1 1
1 2
2 1
1 1
2 2
1 2
2 2
1 2
2 2
1 1
1 2
2 1
1 1
1 1
1 2
2 2
2 2
2 1
2 2
2 2
1 2
1 1
2 2
1 2
2 1
1 1
2 2
1 1
2 2
2 2
2 2
2 2
1 2
1 2
1 2
2 1
1 1
1 2
1 1
1 1
1 2
1 1
2 2
2 1
1 2
2 2
1 1
2 1
1 2
1 1
2 1
2 2
1 2
1 1
2 1
1 2
2 1
2 1
2 2
1 1
2 2
1 1
1 1
1 1
2 2
1 1
1 2
2 2
2 1
2 1
2 1
1 2
1 1
2 2
2 1
1 2
1 1
2 1
2 2
2 1
2 2
2 2
2 2
2 1
2 2
1 2
1 2
2 2
2 1
1 2
2 2
2 2
2 2
2 2
1 2
1 1
1 1
1 1
2 1
2 2
1 2
2 2
2 1
2 2
1 1
1 2
1 1
2 2
2 2
2 1
2 2
2 1
2 1
2 1
1 2
1 1
2 2
1 1
2 1
2 1
1 1
2 1
1 2
2 1
2 2
2 2
1 1
1 2
2 2
2 1
1 1
1 2
2 2
1 1
1 2
2 2
2 1
1 1
1 2
1 2
1 1
2 2
2 1
2 2
1 2
2 2
1 1
1 2
2 1
2 2
1 1
2 1
2 2
1 2
1 2
2 2
2 2
1 2
1 1
2 2
1 1
1 2
2 2
1 1
1 1
2 2
1 1
1 1
1 2
1 1
1 2
2 1
1 2
1 2
1 2
2 2
1 2
1 2
2 2
2 2
1 2
2 2
1 2
2 1
2 1
1 2
1 1
2 1
2 2
1 1
1 2
2 1
1 1
1 2
1 2
2 2
2 2
2 1
1 1
2 2
1 2
1 2
2 2
1 1
1 2
1 1
2 1
1 1
1 2
1 1
2 2
2 2
2 1
1 2
1 2
2 1
1 1
1 2
2 1
1 2
1 2
1 2
1 2
2 2
1 1
1 1
2 1
2 2
2 1
1 1
1 1
2 2
1 1
2 1
2 1
1 1
1 2
2 2
2 2
2 2
2 2
1 1
2 1
1 2
2 2
2 1
1 2
1 1
2 2
1 2
1 1
1 2
2 2
1 2
2 2
1 1
1 1
1 1
1 1
1 2
1 2
1 1
1 2
1 2
1 2
2 2
2 1
2 2
1 2
2 1
1 2
2 2
2 1
1 1
2 2
1 2
1 2
2 1
1 1
1 2
1 1
2 1
2 2
2 2
2 2
1 1
2 2
2 1
1 1
1 2
1 1
2 2
2 1
2 1
2 1
2 2
1 1
1 1
2 1
2 2
2 2
2 2
2 1
1 1
1 1
2 1
2 2
2 1
1 1
1 2
1 2
1 2
2 2
2 1
1 1
1 1
1 2
2 2
1 1
2 1
1 1
2 1
2 1
2 2
1 1
1 2
2 2
1 2
1 1
1 1
2 2
2 1
2 1
2 2
2 2
2 2
1 2
1 2
2 1
1 2
2 1
1 1
1 2
1 2
1 2
2 2
2 2
2 1
2 1
2 2
1 1
1 2
1 2
2 1
1 1
1 2
1 1
2 1
2 1
1 1
1 1
1 2
1 1
1 2
2 2
2 1
1 2
1 1
2 1
2 1
1 1
2 1
1 1
2 2
1 2
1 1
2 1
2 1
1 2
2 2
2 1
2 2
1 1
2 1
2 1
2 2
2 1
2 1
1 2
2 1
2 2
1 2
2 2
2 2
2 1
2 1
2 1
2 2
1 1
1 1
1 2
1 1
2 2
1 2
1 2
1 1
1 1
2 1
1 2
2 1
2 1
2 1
2 2
1 1
1 2
2 1
2 2
1 2
1 2
1 1
1 2
2 1
1 2
2 1
2 1
2 2
2 1
1 1
1 1
2 2
1 2
1 1
2 1
2 1
2 2
2 1
2 2
1 2
1 1
1 2
2 1
2 2
2 2
1 1
1 1
2 2
1 2
2 1
2 2
2 2
1 2
2 2
2 1
2 2
2 1
2 2
1 2
2 1
2 2
1 2
2 2
1 1
2 1
1 1
2 2
2 1
1 2
2 1
1 1
2 1
1 1
2 1
1 1
2 1
1 2
1 1
1 1
2 2
1 2
1 2
2 1
2 1
2 1
2 2
2 1
2 2
1 1
2 2
2 2
2 1
1 1
1 2
2 2
2 2
2 2
1 1
1 1
2 1
2 2
1 1
2 2
2 1
1 2
2 1
1 1
1 2
2 1
2 2
2 2
2 1
2 1
2 1
1 2
1 2
2 1
1 1
1 2
1 2
1 2
1 2
2 2
1 1
1 2
2 2
1 2
1 1
2 1
2 2
1 2
1 1
1 2
1 1
2 2
2 2
1 1
1 2
2 2
2 2
1 1
1 2
2 2
2 1
2 2
1 1
2 1
1 1
2 1
1 2
2 1
1 1
1 1
1 2
2 2
2 1
2 2
2 1
1 2
1 1
1 1
2 2
1 1
1 1
2 2
2 1
1 2
1 2
2 1
2 1
2 2
1 1
1 1
1 1
2 1
2 1
2 2
1 2
2 1
1 1
2 1
2 1
2 1
1 2
1 1
2 2
2 1
1 2
1 1
1 1
2 1
1 2
2 2
1 1
2 1
1 1
2 1
1 2
2 1
1 2
2 1
1 1
1 1
2 2
1 1
1 1
1 1
2 1
2 2
2 2
2 2
2 1
1 2
1 1
1 2
2 2
1 2
1 1
1 2
1 2
2 2
1 1
1 2
2 2
1 2
1 1
2 1
2 2
1 2
1 1
1 2
2 1
1 1
1 2
2 2
1 1
2 2
2 2
1 1
1 2
1 2
2 1
1 1
1 2
2 2
2 2
2 1
2 2
2 1
1 1
2 1
1 1
2 1
2 1
2 1
1 1
1 1
2 1
1 1
2 2
1 1
2 2
1 1
2 2
1 1
1 2
1 1
1 2
1 1
2 1
1 2
2 1
2 1
1 1
1 2
2 1
2 2
2 2
1 1
2 1
1 1
2 2
1 2
2 1
2 1
2 1
2 1
2 2
2 2
2 2
1 1
1 2
1 2
1 1
2 2
1 1
1 2
1 2
2 2
1 2
2 2
2 1
1 2
2 2
2 1
2 1
1 2
1 1
1 1
1 2
2 2
1 1
1 2
2 2
2 2
1 2
2 1
1 1
2 1
2 2
2 2
1 1
2 2
2 1
1 2
2 2
1 2
2 2
1 1
2 1
2 2
1 1
2 1
2 1
1 1
2 1
1 1
2 2
1 1
2 2
1 1
1 1
1 2
2 1
2 2
1 2
2 1
2 2
2 1
1 2
1 1
2 2
1 1
2 2
1 2
2 1
1 2
2 1
2 2
2 1
2 2
1 1
1 2
2 2
2 2
2 1
1 2
1 2
1 2
1 2
1 1
1 1
1 1
1 2
1 2
2 1
1 1
2 1
2 2
2 2
1 2
2 2
2 1
1 2
2 2
1 1
2 1
2 1
1 1
1 1
2 2
1 2
2 2
1 2
1 2
1 1
1 1
2 2
2 2
1 1
1 1
1 2
2 2
1 1
2 1
2 2
2 2
1 2
1 2
2 1
2 1
2 2
2 1
2 1
2 1
2 2
1 1
1 1
2 2
1 1
1 1
1 2
2 1
1 2
1 2
2 2
1 2
1 2
1 1
1 1
2 1
1 2
1 2
2 1
1 1
1 1
1 2
2 2
2 2
2 2
1 2
1 1
1 1
2 2
2 2
1 2
2 2
1 1
2 2
1 1
2 2
1 2
2 2
1 1
2 1
1 1
1 2
2 1
1 1
1 2
1 2
1 1
2 2
1 2
2 1
2 2
1 2
1 1
1 2
1 1
1 2
2 1
1 1
2 1
1 2
1 2
2 2
1 1
2 2
1 1
1 1
2 1
1 2
2 1
1 1
2 1
1 1
2 2
1 1
1 2
1 1
2 1
2 2
1 2
2 2
1 2
2 1
1 1
2 1
1 1
2 2
1 2
1 1
2 1
2 2
1 1
1 2
1 1
2 2
1 1
1 1
2 2
1 2
1 2
2 1
2 1
1 1
1 1
1 2
2 1
1 2
1 1
2 1
2 2
1 1
1 1
1 2
1 1
1 2
1 2
2 2
2 2
1 1
1 1
2 1
2 2
1 1
2 1
1 2
2 1
1 2
1 2
2 1
1 2
2 1
2 1
1 2
2 1
1 1
2 2
2 2
2 1
2 2
1 2
1 2
1 1
2 1
1 1
2 2
2 1
1 2
1 1
1 2
1 1
2 2
2 2
1 1
1 2
2 2
2 2
1 2
1 1
2 2
1 2
1 1
2 1
2 1
1 2
2 2
2 1
1 1
1 1
1 2
2 1
1 1
2 1
1 1
1 1
2 1
1 1
2 2
1 2
2 1
1 1
1 2
2 2
1 1
1 1
1 2
1 1
1 2
1 1
1 2
2 2
1 2
1 2
1 1
2 2
2 1
2 2
2 1
2 1
1 2
2 1
1 1
1 2
2 1
1 1
2 1
1 1
1 2
2 1
1 1
1 2
1 2
1 2
2 1
2 2
1 2
1 2
1 1
1 1
2 1
2 2
1 1
2 2
2 1
2 2
1 1
1 2
1 1
1 2
1 1
1 2
1 1
2 2
1 1
2 2
2 2
2 1
2 2
1 1
2 1
2 2
1 1
2 1
1 2
1 2
1 1
1 1
1 2
1 2
2 2
1 1
2 2
1 2
2 1
2 2
1 2
1 2
2 1
1 2
1 1
2 1
2 2
1 2
2 2
1 2
1 1
1 1
2 1
1 1
2 2
2 2
2 1
1 1
2 1
1 2
1 1
2 1
1 1
2 1
2 2
1 1
1 1
1 1
2 1
2 2
2 2
2 1
1 1
2 2
2 1
1 1
1 2
2 2
2 1
1 1
1 1
2 1
2 1
1 2
2 1
1 1
1 1
1 2
1 1
2 2
2 1
1 1
1 2
1 2
1 1
1 2
2 2
1 2
1 1
1 2
2 2
2 2
2 1
1 1
2 2
2 2
1 1
2 1
1 1
1 2
2 1
2 1
2 1
2 1
1 2
1 2
2 1
1 2
1 1
2 2
2 2
1 2
2 2
2 2
1 1
2 1
2 1
1 1
2 2
1 1
1 2
2 2
2 1
2 2
1 2
1 1
1 2
2 1
1 2
2 2
2 1
1 2
2 2
2 1
1 2
1 2
1 1
1 2
2 2
2 1
1 2
1 2
2 1
2 2
2 1
2 1
1 1
1 2
1 1
1 2
1 2
2 1
1 1
2 2
2 2
1 1
2 2
2 1
1 2
2 1
1 2
1 1
2 2
2 2
2 1
1 2
1 2
1 2
2 1
1 2
2 2
1 2
1 1
1 2
1 2
2 1
1 2
2 2
2 2
1 1
2 2
2 1
2 1
2 1
2 1
2 2
1 2
1 1
2 1
1 2
1 1
2 1
1 1
1 2
2 2
2 1
1 1
1 1
2 2
2 1
1 1
2 1
1 1
2 1
2 2
2 2
1 1
1 2
1 2
2 1
1 2
2 1
1 2
2 2
1 2
1 2
1 1
2 2
2 1
2 1
1 2
2 2
1 2
1 1
2 1
2 2
1 2
1 1
2 1
2 2
2 2
2 1
2 2
2 1
2 2
2 2
2 2
2 1
1 1
2 2
1 2
1 1
1 2
1 1
2 1
2 2
1 2
2 1
2 1
2 1
2 1
2 1
2 2
2 2
1 2
2 2
2 2
1 1
2 2
1 2
1 2
1 1
2 2
1 2
2 2
2 2
2 2
2 2
2 1
2 1
2 1
1 2
2 2
2 1
1 1
1 1
1 1
2 2
2 2
1 2
1 2
2 1
1 1
1 1
1 2
1 2
1 2
2 1
2 2
1 1
1 2
2 2
1 2
1 1
1 2
1 2
2 2
2 2
1 2
2 2
1 2
1 1
1 2
2 1
2 2
1 2
2 2
2 2
2 1
2 1
1 2
1 2
1 2
2 1
2 2
1 1
1 2
1 2
1 1
2 2
2 1
2 1
2 1
1 1
1 1
1 1
1 1
1 1
2 2
1 1
2 2
2 1
1 1
2 2
1 1
1 1
1 2
2 2
1 1
1 1
2 2
1 1
2 1
2 2
2 2
2 2
1 2
1 2
1 1
2 1
2 2
1 1
1 2
2 2
1 1
1 2
2 1
1 1
1 2
1 2
1 2
2 2
1 1
1 2
2 1
1 2
1 1
2 2
1 2
2 2
2 2
1 1
2 2
2 2
2 2
1 1
2 1
1 2
2 2
1 2
1 1
2 1
1 1
2 1
1 2
2 1
1 2
2 2
1 1
2 2
1 2
1 1
2 1
2 1
2 1
1 1
1 2
1 1
1 1
2 1
1 2
2 1
1 1
2 1
1 2
1 2
2 2
1 1
1 1
2 2
1 2
2 1
2 1
1 2
2 1
2 1
1 2
2 2
1 2
2 1
2 2
2 1
2 2
2 2
1 1
1 1
2 2
2 2
2 1
1 1
2 2
2 1
1 1
1 2
1 2
1 1
1 2
2 2
1 1
2 2
1 2
2 1
2 2
1 1
2 2
1 1
1 1
1 2
2 2
2 1
1 2
1 1
1 1
2 2
1 2
2 2
1 1
1 2
1 1
1 1
2 1
2 2
2 1
1 1
1 1
2 2
2 2
2 1
2 1
1 2
2 2
1 2
1 2
2 2
1 2
1 2
1 2
1 1
1 2
2 1
2 1
1 1
2 1
2 2
2 1
2 2
1 2
1 1
1 2
2 1
1 2
1 1
1 1
1 1
1 2
2 2
2 1
2 2
1 2
1 2
2 1
2 2
2 2
2 1
1 1
2 1
2 2
2 1
2 2
2 2
1 2
2 2
2 2
2 1
1 2
2 1
2 1
1 1
1 1
1 1
1 2
1 1
2 1
2 1
1 2
1 2
2 1
2 2
2 1
1 2
1 1
1 1
2 2
1 1
2 1
1 2
1 1
1 1
2 1
1 2
2 1
2 2
2 2
2 2
1 2
1 1
2 2
2 2
2 1
1 1
1 1
1 1
2 2
2 1
2 2
2 1
1 2
1 2
1 1
1 2
1 1
2 1
1 2
1 1
1 2
1 1
2 1
2 1
1 1
2 2
1 2
2 1
2 2
2 1
2 2
1 1
2 2
2 1
2 1
1 2
2 2
1 2
2 2
1 1
2 1
2 1
1 1
2 2
2 1
1 2
2 1
1 1
2 2
1 1
2 2
1 2
1 2
1 2
1 1
1 1
1 2
1 1
2 1
2 1
1 1
2 1
1 2
2 2
1 2
1 1
2 2
1 2
2 2
1 1
2 2
1 2
2 1
1 1
1 1
2 2
1 2
1 1
1 1
2 1
1 1
1 1
1 2
2 2
1 2
1 1
1 1
1 2
2 1
2 1
2 2
2 2
2 1
1 1
2 2
2 2
2 1
2 2
2 1
1 2
1 1
2 1
2 2
1 2
1 2
1 1
1 2
1 1
1 1
2 2
1 2
2 1
1 2
1 2
2 2
2 1
2 1
2 2
1 2
1 1
2 1
1 2
2 1
1 2
2 1
1 1
1 2
2 2
2 1
1 2
2 2
2 1
2 1
1 1
2 1
2 2
2 1
1 1
1 1
2 2
2 1
1 2
1 1
2 2
1 1
2 1
2 1
1 1
2 2
2 2
2 1
2 1
1 1
2 2
2 1
1 2
1 1
1 1
1 1
2 2
1 2
1 2
2 1
1 1
2 1
2 2
2 1
1 2
1 1
2 2
2 2
2 1
2 2
1 2
2 2
1 1
2 2
1 1
2 1
1 2
2 2
2 1
1 1
1 2
1 2
1 2
2 2
2 1
2 1
1 2
1 2
1 1
1 2
1 1
1 1
1 1
2 2
1 2
2 1
2 1
2 1
1 2
2 1
2 2
1 2
1 2
1 1
2 1
2 1
2 1
2 1
2 1
1 2
1 2
1 2
1 1
2 2
2 2
2 1
1 2
2 1
2 2
2 2
1 1
1 2
2 2
1 2
2 1
1 1
1 2
2 1
2 2
2 1
2 2
1 2
1 2
1 1
2 2
1 2
1 1
1 2
2 1
2 1
1 2
1 2
1 2
2 2
2 2
2 1
1 1
1 2
2 1
1 1
2 1
2 1
1 1
2 1
2 1
1 1
2 2
2 1
1 1
2 2
1 1
1 2
2 2
1 1
1 2
1 2
1 2
2 1
1 2
1 1
2 1
1 1
1 2
1 2
1 1
2 1
1 1
1 2
1 1
1 2
2 1
1 2
1 1
2 1
1 1
2 2
1 1
1 2
2 1
1 1
2 1
1 1
2 2
2 1
2 1
2 2
1 2
1 1
1 2
1 2
1 1
2 2
1 1
1 1
1 2
2 1
2 2
1 1
2 2
2 2
2 1
2 2
1 1
2 1
2 2
1 1
1 1
1 2
1 2
1 2
1 2
2 2
1 1
1 2
1 1
2 1
2 2
2 2
2 1
1 1
1 2
2 1
2 1
2 2
1 1
1 2
2 1
2 1
1 2
1 1
2 1
2 2
2 1
2 1
2 1
1 2
1 2
1 1
1 2
2 2
2 2
2 1
1 1
2 1
1 2
2 1
2 1
1 1
2 1
2 2
2 1
1 2
1 1
1 2
2 1
2 2
1 2
2 2
2 1
2 1
2 1
2 1
2 2
1 1
1 2
1 2
2 2
1 2
1 2
1 2
1 1
1 2
2 1
2 1
1 1
2 1
2 2
2 2
1 1
2 2
2 2
1 1
1 1
1 2
2 2
2 2
1 2
2 2
2 2
1 2
1 2
1 1
2 1
1 1
1 2
2 1
2 1
2 1
1 2
2 2
1 1
1 1
1 1
1 1
2 2
1 2
1 1
1 2
2 2
2 2
1 1
2 2
1 1
1 1
1 1
2 1
1 2
1 1
1 1
2 2
2 2
2 1
2 2
1 1
1 1
1 1
1 2
1 1
2 2
2 2
2 1
2 2
2 1
2 1
2 2
1 2
2 2
1 2
1 1
2 1
2 2
2 1
1 2
2 2
1 2
1 1
1 1
2 2
1 2
1 2
1 2
2 1
2 2
2 2
1 2
1 2
1 2
2 1
2 1
2 1
1 1
2 1
1 2
1 2
1 2
2 2
2 1
2 2
1 1
2 2
1 2
1 2
1 1
2 1
2 1
1 2
2 1
2 1
1 1
2 1
2 2
1 2
1 1
1 2
1 1
1 1
1 1
1 2
1 2
1 1
1 2
1 1
1 2
1 2
1 2
2 1
1 1
1 1
1 2
2 2
2 2
1 1
1 1
1 2
2 2
2 2
2 2
2 1
2 1
2 2
1 1
2 1
2 1
2 2
2 2
1 2
1 2
1 1
2 1
1 1
2 1
2 1
2 1
2 2
2 2
2 1
1 1
2 1
2 2
2 1
1 2
2 2
2 2
1 2
1 2
2 2
2 2
1 2
1 1
1 1
1 1
1 2
1 1
1 2
2 2
2 2
2 2
1 1
1 1
2 1
1 2
2 1
2 2
2 1
2 2
2 1
2 2
1 1
2 2
1 2
1 1
1 1
2 2
2 1
1 2
1 1
2 2
2 1
2 2
2 1
2 2
1 1
1 2
2 1
1 1
1 1
2 1
2 1
1 1
2 1
2 2
1 2
2 1
1 2
1 1
1 1
2 1
1 1
2 1
2 1
1 1
1 2
1 2
2 2
2 1
1 2
1 1
2 2
2 2
2 1
1 2
1 1
2 2
2 1
1 1
1 2
2 2
1 2
1 1
1 1
1 2
2 1
2 2
1 1
1 2
2 2
2 1
1 1
1 1
1 1
2 2
1 2
2 2
1 2
2 1
1 1
1 1
1 2
2 2
2 1
1 2
1 1
2 1
1 1
1 2
2 1
1 2
1 1
1 1
2 1
1 1
1 1
1 1
1 1
2 1
2 2
1 1
2 2
1 2
2 2
1 1
2 2
2 2
2 1
2 2
2 1
1 1
1 1
1 2
1 1
2 1
1 1
1 2
2 2
2 2
1 1
1 1
1 2
2 2
2 2
1 2
2 2
1 2
1 1
1 2
2 2
1 2
2 1
1 2
2 1
2 1
2 1
2 1
2 1
1 1
2 1
2 2
1 1
2 2
2 2
2 1
2 2
2 2
1 1
1 2
1 1
2 2
1 1
2 2
2 2
1 2
2 1
1 2
1 1
2 1
1 2
1 2
1 2
1 1
1 1
2 1
1 1
2 1
1 2
1 1
1 2
1 1
2 2
2 1
1 1
2 1
1 2
1 2
2 1
1 2
2 1
2 1
1 1
1 2
2 1
2 1
1 1
2 1
1 1
1 1
2 2
1 2
1 1
2 1
2 1
2 2
2 2
1 1
1 2
2 1
1 2
1 1
2 1
1 1
1 2
1 2
1 1
2 2
1 1
1 1
2 1
2 2
2 1
1 2
1 2
1 2
2 2
1 2
1 2
2 2
1 2
1 1
2 1
2 2
1 2
1 1
2 1
2 2
1 2
2 2
1 2
2 1
1 1
1 1
2 1
1 2
2 2
2 2
1 1
1 2
2 1
1 2
2 2
2 1
1 2
2 1
2 1
2 1
2 1
2 1
1 1
2 2
2 2
2 2
1 1
1 1
2 2
1 1
2 1
2 2
2 2
2 2
1 2
2 1
2 1
1 1
2 2
2 2
2 2
2 2
2 2
2 1
2 2
1 2
2 2
1 2
2 2
2 1
2 2
2 1
2 2
1 2
1 2
2 2
1 1
1 1
1 1
2 1
2 2
2 1
2 2
2 2
2 1
1 1
2 2
1 1
1 1
1 2
1 1
1 1
1 1
2 2
2 2
2 2
1 2
1 2
2 2
1 1
1 1
2 2
2 2
1 2
2 2
2 2
1 1
2 2
2 2
2 1
1 2
2 1
2 1
2 1
1 2
1 1
2 1
2 1
1 1
2 2
1 2
1 1
2 1
2 1
1 1
2 1
2 2
2 2
2 2
1 2
2 2
1 2
1 1
1 1
2 1
2 1
1 1
2 1
1 2
2 1
2 1
2 2
1 1
2 2
2 1
2 1
2 1
2 1
2 2
1 2
1 2
2 1
2 1
2 2
2 1
2 1
1 2
1 1
2 2
1 2
2 2
2 2
2 1
2 1
1 2
1 1
2 1
1 2
1 1
2 2
1 1
2 1
2 2
1 2
1 1
2 2
1 1
1 1
2 2
1 1
1 2
1 2
2 2
2 2
2 1
1 1
2 1
1 1
1 1
1 1
1 2
2 1
1 1
2 2
1 2
1 2
2 2
2 1
1 1
1 1
1 2
1 1
2 2
1 2
1 1
1 2
2 1
1 2
2 1
2 1
1 1
2 2
2 1
1 2
1 1
1 2
1 2
1 2
2 1
2 2
1 2
1 1
2 2
2 1
2 1
1 2
2 1
1 1
1 1
1 2
1 2
1 1
2 1
1 2
2 2
1 1
2 1
1 2
1 2
2 2
2 1
2 2
2 1
1 2
2 1
1 2
1 2
1 2
1 2
1 2
1 1
1 2
2 2
2 1
1 2
1 1
2 1
2 1
2 1
1 1
1 2
1 1
2 2
2 2
1 1
2 2
2 1
2 2
2 1
1 1
1 1
2 2
1 2
1 1
2 1
2 1
1 2
2 2
2 2
1 2
2 1
1 1
1 2
2 2
1 2
2 2
2 1
1 1
2 1
2 1
2 1
1 1
1 1
1 2
2 1
2 1
1 2
1 2
2 2
1 1
2 2
1 2
1 1
2 1
2 2
2 2
1 1
2 1
1 1
2 2
1 1
1 2
1 1
1 2
2 2
1 2
2 1
2 2
1 1
2 2
2 2
2 2
1 1
2 2
1 2
2 1
2 2
2 2
2 1
1 1
2 2
2 2
1 2
1 1
2 2
1 1
2 2
1 2
1 2
1 2
2 2
2 1
2 1
2 2
1 2
2 1
2 2
2 1
2 2
1 1
1 2
1 2
2 2
2 1
1 1
2 1
2 2
2 1
2 1
2 1
1 2
1 2
1 2
2 2
2 2
2 2
2 2
2 2
1 2
2 2
2 2
1 2
2 2
1 1
2 2
2 2
2 2
1 1
1 1
1 1
1 2
1 2
1 2
1 1
1 2
2 2
2 1
1 1
1 2
1 1
1 2
2 1
1 1
1 1
2 1
2 2
2 1
2 2
2 2
2 2
2 2
1 1
2 2
2 1
1 1
2 1
1 1
2 2
1 1
2 2
1 1
2 2
2 2
2 2
1 2
1 1
1 2
1 1
2 2
1 2
2 2
1 2
2 1
1 2
1 2
2 2
2 2
2 1
2 2
2 2
2 2
1 1
2 1
2 2
2 2
2 2
1 1
2 2
2 2
1 2
2 2
2 1
1 2
2 2
2 1
2 1
1 1
2 1
2 2
1 1
1 2
2 1
1 2
1 1
1 1
2 1
2 2
2 1
1 1
2 2
2 1
1 2
1 1
2 2
2 1
1 2
1 2
1 1
2 2
1 2
2 1
2 2
2 1
2 1
1 1
1 2
2 2
2 2
1 1
2 2
2 1
2 1
2 2
2 2
1 2
1 1
2 1
2 2
2 2
1 2
2 1
2 2
1 1
2 2
2 2
2 2
1 2
2 2
2 1
2 2
1 2
2 2
1 1
2 1
1 1
1 1
2 1
1 1
2 2
1 1
1 1
2 2
2 2
2 1
1 1
2 2
2 2
2 1
1 2
1 1
1 1
1 1
1 1
1 2
1 2
2 2
2 2
1 1
2 2
2 1
2 1
2 1
1 1
1 2
1 1
2 2
2 2
2 1
2 1
1 2
2 2
2 2
2 1
1 1
1 1
1 2
1 1
1 2
1 1
1 2
2 1
1 1
2 2
1 2
1 2
2 1
2 2
1 1
2 2
2 1
2 2
2 1
1 2
1 1
1 1
1 2
2 2
2 2
2 2
2 1
2 2
1 2
2 2
1 2
2 2
1 1
1 2
1 2
2 2
2 1
1 1
2 1
1 2
2 2
1 2
2 1
2 2
2 2
2 2
2 1
2 1
2 2
1 1
2 2
2 1
1 1
2 2
2 1
1 1
2 2
2 2
2 1
1 1
2 1
2 2
2 1
1 2
2 2
1 2
2 1
1 1
1 2
1 2
2 2
1 1
2 1
2 1
1 1
2 1
2 2
2 1
2 2
2 1
2 1
2 1
2 1
2 2
2 1
1 2
2 2
2 2
1 2
1 1
1 1
2 2
1 1
1 1
1 2
2 1
1 1
2 1
2 2
1 2
2 2
1 1
2 1
2 1
1 2
2 2
1 1
2 2
1 1
1 2
1 1
1 2
2 2
1 1
2 2
2 1
2 1
1 2
1 2
2 1
2 2
1 1
1 1
1 1
1 2
1 1
2 1
2 2
2 1
2 1
2 2
2 2
1 2
1 2
1 2
2 2
1 2
2 1
1 1
2 2
2 1
2 2
1 1
1 2
1 1
2 1
2 1
1 1
1 1
2 1
2 1
2 1
1 2
2 2
1 2
1 1
2 1
2 2
1 2
1 2
2 1
2 1
1 2
1 1
1 1
1 1
1 1
1 2
1 1
2 2
2 2
1 2
2 2
1 1
2 2
2 2
2 2
1 2
1 1
2 1
2 1
2 2
2 2
1 1
1 1
2 1
2 2
2 2
2 1
2 2
2 2
1 2
1 1
2 2
1 2
1 2
2 1
2 2
2 1
2 1
1 1
1 1
1 2
1 2
2 2
2 1
2 2
1 2
1 1
1 2
2 1
1 1
1 2
1 2
2 2
2 2
1 2
1 2
1 2
1 2
2 2
1 2
2 1
2 1
1 1
2 1
1 1
2 2
1 2
2 1
2 2
2 1
1 2
1 1
2 2
1 2
2 2
2 2
1 1
2 2
1 1
2 1
2 1
1 2
2 2
2 1
2 2
1 2
1 1
2 2
1 2
1 2
1 1
1 2
1 1
2 1
2 1
1 1
1 2
2 1
2 2
1 2
2 1
1 2
2 1
2 1
1 1
1 2
2 2
1 1
1 2
1 2
1 2
1 1
2 1
1 1
1 1
1 1
2 2
1 2
2 2
1 2
2 2
2 1
2 1
1 2
2 1
2 2
2 2
2 1
2 2
2 1
2 1
2 2
1 2
2 2
2 2
1 1
2 1
1 2
2 2
1 2
1 1
2 1
2 2
2 1
1 2
1 2
2 2
2 1
1 2
2 2
1 1
2 2
1 1
2 2
1 2
1 1
2 2
1 2
1 2
2 2
1 1
1 1
1 2
2 1
1 1
1 1
1 1
2 2
2 1
1 1
1 1
1 2
1 2
2 1
1 1
1 1
1 1
1 2
2 2
1 2
1 2
2 2
1 1
1 1
2 1
1 1
1 1
1 2
1 1
2 2
1 2
2 1
1 2
2 1
2 1
1 1
2 2
1 1
1 2
1 2
2 1
1 1
1 2
2 2
2 2
1 2
1 2
2 1
2 1
2 1
2 1
2 1
1 2
1 1
1 1
2 2
2 1
1 1
2 1
1 1
2 2
1 1
1 1
1 2
1 1
2 1
1 1
1 2
1 2
1 1
1 2
2 2
2 1
2 1
1 2
2 1
1 1
1 2
1 1
1 1
1 2
2 2
2 1
2 2
1 2
2 1
2 1
1 1
1 1
2 1
1 1
2 1
1 2
2 2
2 1
2 1
1 1
1 2
2 2
1 2
2 1
2 2
2 1
1 1
1 1
1 1
2 1
1 1
1 1
2 2
1 1
1 2
1 1
1 2
2 1
1 2
1 1
2 2
1 1
2 1
1 1
1 1
2 2
1 1
2 2
2 2
2 1
2 1
2 2
2 2
1 1
2 2
2 1
2 1
2 1
1 2
2 1
2 2
2 1
2 2
2 1
1 1
2 1
2 2
2 2
2 2
1 2
1 1
1 2
2 2
1 2
1 2
2 2
1 2
1 2
2 2
1 2
1 1
2 1
2 1
2 2
1 2
2 1
1 1
1 1
1 1
1 2
2 1
2 2
2 2
1 1
1 2
2 1
1 2
2 1
2 2
2 2
2 2
2 1
2 2
1 2
1 2
1 1
1 2
2 2
1 2
2 1
1 2
2 2
1 2
1 2
1 1
2 1
1 2
2 2
1 1
1 1
1 2
2 2
2 1
1 1
2 1
1 1
2 1
2 1
2 1
1 1
2 1
2 1
1 2
1 2
2 1
2 2
1 1
1 1
1 1
2 2
1 2
2 2
2 1
2 1
2 1
2 1
1 2
1 2
2 1
2 1
1 2
1 1
2 2
2 1
1 2
1 1
2 1
2 2
1 2
1 2
2 2
2 2
2 1
1 1
2 1
2 1
1 1
2 1
1 2
2 1
2 1
1 2
1 2
1 1
1 2
1 1
1 1
2 2
2 1
2 1
2 2
2 1
1 1
1 1
1 1
1 2
1 2
2 1
1 1
2 2
1 1
1 1
2 2
1 2
1 2
2 1
2 2
2 2
2 1
1 1
2 2
1 1
2 1
1 2
2 2
1 2
2 2
1 1
2 2
1 2
1 1
2 1
1 1
1 1
2 1
1 1
2 1
1 1
1 2
2 1
2 1
1 1
2 2
2 2
2 1
2 2
2 1
2 2
2 2
2 1
2 2
2 1
2 1
1 1
1 2
1 1
2 1
2 2
1 1
2 2
2 1
1 1
2 2
1 2
2 2
1 1
1 2
2 1
1 2
1 1
1 2
1 1
2 1
2 2
2 1
2 1
2 2
2 2
1 2
2 1
1 1
2 2
1 1
2 2
1 1
2 1
1 1
1 2
2 1
2 2
2 2
1 1
1 1
1 2
2 2
2 1
2 2
1 1
2 2
1 1
2 1
2 1
2 1
2 1
1 1
2 1
1 1
1 1
2 1
1 2
1 1
1 1
2 1
1 1
1 2
2 2
2 1
2 2
1 1
1 1
1 1
2 1
1 2
2 1
2 2
1 1
1 2
2 1
2 1
1 2
2 2
1 2
1 2
2 2
2 2
2 1
1 2
2 1
2 2
1 2
1 2
1 2
1 1
1 2
2 1
1 1
2 2
1 2
1 1
2 2
1 2
1 2
1 1
1 1
1 1
1 2
2 1
2 1
1 2
1 2
1 2
1 1
2 2
1 1
2 2
1 2
2 2
2 2
2 1
2 1
1 2
2 2
1 2
2 2
2 2
1 1
2 1
1 1
2 2
1 2
1 1
1 1
2 1
2 2
2 1
1 2
2 1
1 1
2 1
1 2
1 2
1 1
1 1
2 1
2 2
1 1
1 1
1 1
1 2
1 2
2 2
2 1
2 1
2 1
2 2
1 2
2 1
1 1
2 2
2 1
1 1
1 1
1 1
1 1
2 2
1 1
1 1
1 2
1 2
2 2
2 2
2 2
2 2
2 2
2 1
1 2
1 2
2 2
1 2
1 2
2 2
2 1
2 1
2 2
1 1
2 1
1 2
1 2
1 1
1 2
2 1
2 2
2 2
2 2
2 1
1 1
1 1
1 1
2 2
2 2
2 1
1 1
2 1
1 2
2 1
1 2
2 1
1 1
2 1
2 2
2 2
2 2
1 2
1 2
1 2
1 1
1 1
1 2
1 1
1 1
1 1
1 2
1 2
2 1
2 1
1 1
1 1
2 1
2 2
1 2
2 1
2 2
1 1
2 1
1 1
1 1
2 2
1 1
1 1
1 2
2 2
2 2
2 1
2 1
2 1
1 2
2 1
2 2
2 1
1 1
1 1
1 1
1 2
2 2
2 1
1 1
2 1
2 2
1 1
1 2
1 2
2 2
2 1
1 1
2 2
1 2
1 2
1 1
1 2
2 1
1 1
1 1
2 1
2 2
2 1
2 2
1 1
1 2
2 1
2 1
1 1
1 2
1 1
2 1
1 1
1 1
1 2
1 1
2 1
2 1
2 1
1 2
2 1
1 2
1 1
1 1
1 2
2 1
1 1
1 2
1 2
2 1
2 1
1 1
1 2
2 1
2 1
1 2
1 1
2 2
2 2
2 1
1 2
1 2
1 2
1 2
1 2
1 1
2 2
1 2
2 1
1 2
1 2
1 1
1 2
1 2
2 1
2 2
1 2
2 2
2 1
2 2
1 1
2 2
2 1
2 2
2 1
1 2
2 1
2 1
2 2
1 1
1 2
1 1
1 2
1 2
1 2
1 1
1 2
2 2
1 1
1 2
1 1
1 1
1 2
2 1
1 1
2 1
2 1
1 2
1 1
2 2
1 2
2 2
1 2
2 1
1 2
1 2
1 2
2 1
1 2
1 2
1 2
1 2
1 2
2 1
2 1
1 2
2 1
1 2
2 1
2 1
1 1
2 2
1 1
2 1
1 1
1 1
1 1
2 1
2 2
2 1
2 2
2 2
2 1
1 1
2 1
1 1
2 2
2 1
2 1
2 2
1 2
1 1
2 2
2 1
1 1
1 2
1 2
1 2
2 1
2 2
1 2
2 1
2 1
1 1
2 2
1 1
1 1
1 2
2 2
2 2
2 2
1 1
1 1
2 2
2 2
2 2
2 1
1 2
2 2
1 2
1 1
2 2
2 1
2 2
1 2
1 2
1 1
2 2
1 2
1 1
1 2
2 2
1 2
1 2
1 1
1 2
2 2
1 2
2 2
1 1
1 1
1 1
2 1
2 1
2 1
2 2
2 2
2 1
2 1
2 1
2 2
1 1
1 2
2 2
1 2
1 2
2 1
2 1
1 2
2 1
1 1
2 1
1 1
2 1
2 2
1 1
1 2
1 1
1 1
1 2
1 2
1 1
2 1
1 1
2 1
2 1
2 1
2 1
1 1
1 1
2 2
2 2
1 2
1 2
2 2
2 2
2 2
2 2
1 1
1 2
2 1
1 2
1 1
1 2
1 1
1 1
1 2
1 1
2 1
1 1
1 1
2 1
2 1
1 1
1 2
2 1
2 2
2 1
2 2
1 1
1 2
2 2
1 2
1 2
2 2
2 2
2 1
2 2
2 2
1 1
2 1
1 2
1 2
2 1
2 2
1 2
2 1
1 1
1 1
1 1
1 1
1 2
1 2
2 1
2 1
1 2
2 1
2 2
1 2
2 2
2 1
2 2
2 2
1 2
1 1
1 2
2 1
1 1
2 2
1 1
1 1
1 2
1 1
1 1
1 1
2 2
2 1
2 2
1 1
1 2
1 2
2 2
2 1
2 1
2 2
1 2
1 2
2 2
1 1
2 2
2 1
2 1
2 2
2 1
2 2
1 2
1 2
2 1
1 1
2 2
1 2
2 2
1 1
1 1
1 2
2 2
2 2
2 2
2 1
1 1
1 2
2 2
1 2
1 1
2 2
1 2
1 2
2 1
1 2
2 1
2 1
2 2
1 1
1 1
2 2
2 2
1 2
1 2
1 2
1 1
2 1
2 1
1 2
1 2
2 2
1 1
1 1
1 2
1 1
2 2
1 1
2 1
1 2
1 1
2 2
2 2
2 2
2 1
1 1
2 2
1 1
1 2
1 1
2 1
2 2
2 2
1 1
1 1
2 2
2 1
1 2
2 1
2 1
2 2
2 2
2 1
1 2
1 2
2 1
2 2
1 2
2 2
2 2
2 1
2 1
1 1
1 1
2 1
2 2
1 2
2 1
1 1
1 1
2 1
1 1
1 1
2 1
1 2
1 2
1 1
2 1
2 1
1 1
1 1
2 2
1 2
1 1
1 2
2 2
2 1
1 2
2 2
2 2
1 1
2 2
1 2
2 1
1 2
2 2
2 1
1 1
1 2
2 2
1 1
1 1
1 1
2 2
1 1
1 2
2 2
2 1
2 2
1 1
1 1
1 1
2 2
2 2
2 1
1 2
1 1
2 1
1 1
2 2
1 2
2 2
2 1
1 2
2 2
1 2
1 1
1 2
2 2
2 1
2 1
1 2
2 1
2 2
1 1
1 1
1 1
1 1
1 2
1 1
2 1
2 1
2 2
2 1
1 2
2 1
2 1
2 2
1 1
2 1
1 2
2 2
1 2
1 2
1 1
1 2
1 1
1 1
2 2
1 2
2 1
1 2
2 2
2 2
2 2
2 2
2 2
2 2
1 2
2 1
1 1
1 2
1 1
1 1
1 2
1 1
2 1
2 2
1 1
2 1
2 2
1 2
2 2
1 1
2 2
2 2
2 2
1 2
1 1
1 1
2 1
1 2
2 1
2 1
1 2
2 2
1 1
1 1
2 1
1 2
2 2
2 1
2 2
2 2
1 2
2 2
1 2
2 1
1 2
1 2
2 2
1 2
1 2
2 2
2 2
1 1
1 2
1 1
1 1
1 2
1 1
2 1
2 1
2 2
2 2
1 1
1 1
2 2
2 2
2 1
2 1
1 2
1 1
2 2
2 2
2 1
1 1
2 2
1 1
2 1
2 1
2 1
1 1
2 1
2 2
2 1
2 1
2 2
1 1
1 2
2 2
1 2
2 2
2 1
1 2
1 2
1 1
1 2
2 1
1 1
1 1
2 2
2 2
2 2
1 1
1 1
2 1
2 1
2 2
2 1
1 2
2 1
1 1
2 2
1 1
2 1
2 2
2 2
2 1
2 2
2 1
2 1
2 2
1 2
2 2
2 2
2 2
1 1
2 2
1 2
2 1
2 1
1 1
2 1
1 2
2 1
1 1
2 2
2 2
2 1
2 1
1 1
2 2
2 1
2 1
1 1
2 1
1 2
1 2
1 1
2 2
1 1
2 1
1 2
1 1
1 2
1 1
1 1
2 1
2 2
1 2
2 2
1 1
2 1
2 1
2 2
2 1
1 1
2 2
2 2
2 2
2 2
1 1
1 1
1 1
1 1
2 1
2 2
2 2
2 1
1 2
1 1
2 1
2 2
2 1
2 2
2 2
1 2
2 1
2 2
2 1
1 2
2 2
2 1
2 1
1 2
2 1
1 2
1 1
1 1
2 1
1 2
2 2
1 2
1 1
1 2
1 1
2 1
2 1
2 1
1 1
1 1
1 2
1 2
2 1
1 1
1 1
1 2
1 2
2 2
1 2
1 1
2 2
1 2
1 2
2 1
1 1
1 1
2 1
2 2
1 1
1 1
2 2
2 2
1 2
2 1
1 2
1 2
1 1
2 1
2 1
1 1
1 1
2 2
2 2
1 2
1 2
1 1
2 1
2 1
2 2
1 2
2 2
2 2
1 1
1 2
1 2
1 1
2 2
1 2
2 2
1 1
1 2
1 2
1 2
2 2
1 2
1 2
2 2
1 1
1 1
1 1
2 1
1 2
1 1
1 2
2 2
2 1
2 2
1 1
2 1
2 1
2 2
1 2
1 2
1 2
2 2
2 1
1 1
2 2
2 2
1 2
1 1
1 1
2 1
2 2
1 2
2 1
1 1
1 1
2 1
2 1
2 2
2 2
2 1
1 2
1 1
1 2
1 2
1 2
1 1
1 1
2 1
2 1
2 1
2 1
2 2
2 2
1 1
2 1
1 1
1 2
2 2
2 1
1 2
2 2
1 2
2 1
1 1
1 2
1 2
2 2
2 1
2 2
1 2
1 1
1 1
1 1
1 2
2 1
1 2
2 1
1 1
1 2
1 1
2 2
2 2
1 2
2 1
2 1
2 2
1 2
2 1
1 1
2 2
2 2
2 1
2 1
1 1
2 2
1 1
1 1
2 1
2 2
1 2
2 2
1 1
2 1
1 2
1 1
2 1
1 2
2 2
1 1
1 1
2 1
1 1
1 2
2 2
2 1
1 2
1 1
1 1
1 1
1 2
1 1
2 2
1 2
1 2
1 2
2 2
2 1
2 1
1 2
1 2
1 1
2 1
2 2
1 1
2 1
1 1
1 1
1 2
2 1
2 1
1 1
1 1
1 2
1 1
1 2
2 1
1 1
1 1
1 1
2 2
2 1
1 2
1 1
2 2
1 2
1 2
2 2
1 2
1 2
1 2
2 2
2 2
1 2
2 2
2 2
2 1
2 2
1 2
1 1
2 1
1 1
2 2
2 2
2 2
2 1
2 1
2 2
2 2
2 1
2 1
2 1
2 1
1 1
1 1
1 1
2 2
1 1
2 1
1 1
2 2
1 2
2 2
2 1
2 2
2 1
2 2
1 1
1 2
2 1
2 2
1 2
1 2
2 1
1 2
2 1
2 1
1 1
2 2
1 1
1 1
1 2
2 2
1 2
2 1
2 1
2 2
1 2
1 1
2 2
2 1
1 2
1 2
2 1
1 2
1 1
1 1
2 1
2 2
1 2
1 1
1 2
1 2
1 2
2 2
2 1
2 2
1 1
2 1
2 1
2 1
2 2
2 1
1 1
2 1
2 2
2 2
1 2
1 1
1 2
1 1
2 1
2 2
1 2
2 1
2 2
1 2
1 1
1 2
1 2
1 1
2 1
2 2
2 2
2 2
1 1
1 1
1 2
1 2
1 2
2 1
1 1
1 1
1 2
2 1
1 2
1 2
2 1
1 1
2 2
1 1
2 1
2 1
1 1
1 1
2 2
2 2
2 2
2 2
2 2
1 1
2 2
2 1
1 1
2 1
1 2
2 2
1 2
2 1
1 1
2 2
2 1
2 2
2 2
2 2
2 2
2 1
1 2
1 2
1 2
2 1
1 2
2 2
1 1
2 2
1 2
2 1
2 2
1 2
1 1
2 2
2 1
2 2
2 2
2 2
2 2
2 1
1 1
1 1
2 1
1 2
1 2
2 2
1 1
1 2
1 2
2 2
2 2
2 2
1 2
1 2
1 2
1 1
2 2
1 2
2 2
1 1
2 1
1 1
1 2
1 2
2 1
1 1
1 1
1 2
1 1
2 2
2 2
2 1
2 1
2 2
2 2
2 1
1 1
2 1
1 1
2 1
1 1
1 1
2 1
1 2
1 2
1 1
2 2
2 1
1 2
2 2
2 1
2 1
2 1
2 2
1 2
1 2
2 2
2 2
2 1
2 1
2 1
1 1
1 2
2 2
2 2
2 1
2 1
2 2
1 1
1 2
2 1
2 1
2 2
1 2
2 2
1 1
2 2
2 1
2 2
2 2
1 1
2 1
1 1
1 1
2 2
2 1
2 2
1 2
1 2
1 1
1 2
2 2
2 2
2 1
1 1
2 2
2 2
2 1
1 2
1 2
1 1
2 2
2 1
1 1
2 1
1 1
2 2
2 1
1 2
2 1
1 1
2 1
2 1
1 2
2 2
2 2
2 2
2 1
2 1
2 1
2 1
2 2
2 2
1 1
1 2
1 2
2 1
2 1
1 2
1 1
2 2
2 2
2 2
2 1
2 1
1 1
1 1
2 1
2 1
1 2
2 2
1 1
2 1
2 1
2 2
1 2
1 2
2 1
2 1
1 2
2 2
1 1
2 2
2 2
1 1
1 2
2 2
2 2
1 1
2 2
2 2
2 2
2 1
1 1
2 1
1 1
2 1
1 2
1 1
2 2
1 1
1 2
1 2
2 2
2 1
2 1
1 1
2 2
2 1
2 2
2 2
1 2
2 1
2 1
2 2
2 2
1 1
1 1
2 2
1 2
2 1
2 1
1 1
2 2
1 1
1 2
2 1
2 1
2 2
2 1
2 2
2 2
1 1
2 1
1 1
2 2
2 2
2 1
2 2
1 2
1 2
1 2
1 1
1 1
2 1
2 2
1 1
1 1
1 2
1 1
2 1
1 2
2 2
1 1
1 1
1 2
1 1
1 2
2 1
2 2
1 2
2 1
1 2
2 1
1 1
2 2
1 2
1 1
2 2
1 2
2 2
2 1
2 1
2 1
1 2
1 2
1 2
2 2
2 2
2 1
2 1
2 1
2 1
1 2
1 2
2 2
2 2
2 2
1 1
1 1
1 1
1 1
1 1
1 2
2 1
2 2
1 1
1 1
2 1
1 1
2 1
2 2
1 1
2 1
2 1
1 1
2 1
2 1
2 2
1 1
1 2
2 1
2 2
1 2
2 1
2 2
2 1
2 2
1 1
1 2
2 2
1 2
1 2
1 1
2 1
1 1
1 1
1 2
1 2
1 1
2 2
2 2
1 1
2 1
1 1
2 2
2 1
1 2
1 1
2 2
2 1
2 1
1 1
2 2
1 2
2 2
2 1
2 2
2 1
2 2
2 1
1 2
1 1
1 1
2 2
2 2
2 1
1 1
2 1
2 2
1 2
2 1
2 2
2 1
2 2
1 1
1 1
1 2
2 2
2 1
1 2
1 2
2 1
1 1
2 1
1 1
2 2
1 1
2 1
2 2
2 2
2 1
1 1
1 2
1 1
1 2
2 1
2 2
1 1
2 2
1 1
1 2
2 1
1 1
2 1
2 1
1 1
1 2
1 1
1 2
2 1
1 1
1 2
2 2
1 1
1 2
2 2
1 1
1 1
2 1
1 2
2 2
1 2
1 1
2 2
1 2
1 2
2 2
2 2
1 2
1 1
2 2
2 2
1 1
1 2
2 2
2 1
1 1
2 1
2 1
1 1
2 2
1 1
1 1
1 1
2 2
2 1
1 1
1 2
1 1
1 1
1 1
1 1
1 1
1 1
2 2
1 2
2 1
1 1
2 1
1 2
1 2
1 2
2 2
1 2
1 1
1 1
2 2
2 2
1 2
1 1
1 1
1 2
1 1
1 2
1 1
2 1
1 1
1 1
2 2
2 1
1 2
1 1
2 2
2 1
2 2
1 1
1 1
1 2
2 1
2 1
2 2
1 2
2 2
1 2
1 1
2 1
2 2
1 2
1 1
1 1
2 2
1 1
1 2
1 1
2 2
2 2
1 2
2 2
1 1
1 1
1 1
1 1
1 1
1 2
2 1
2 2
2 1
1 2
1 2
1 2
1 1
2 2
1 2
1 1
2 2
2 2
1 2
1 1
2 2
2 2
2 2
2 1
1 1
2 1
2 2
2 2
2 2
1 2
2 1
1 1
1 2
2 2
1 2
2 1
2 1
1 1
1 2
2 1
1 2
1 1
2 1
2 2
1 2
1 1
1 1
2 1
2 1
1 1
1 2
1 1
2 2
2 2
2 1
1 2
2 1
2 2
1 2
1 2
1 2
2 2
2 1
2 2
1 1
1 2
2 1
2 2
2 2
1 1
1 1
2 2
2 2
2 1
2 2
1 1
1 2
1 1
2 2
1 2
2 1
1 1
1 1
1 2
2 2
1 1
1 1
2 2
2 2
1 2
2 2
1 1
1 1
1 2
2 2
2 2
1 2
1 1
1 1
2 2
1 1
1 2
2 1
1 1
2 2
2 2
1 1
1 2
2 2
2 2
2 1
2 2
2 1
1 2
1 2
2 2
2 2
2 1
1 2
1 2
2 2
2 2
2 2
2 1
1 1
2 1
2 1
1 1
1 2
2 2
2 2
1 2
2 1
2 2
2 2
2 2
1 1
2 2
1 1
2 2
1 2
2 2
2 1
1 2
1 1
1 1
1 1
1 2
2 1
1 1
2 2
1 2
2 2
1 1
1 1
1 2
2 2
2 1
1 1
2 2
2 1
1 2
2 2
2 2
2 2
1 1
2 1
2 1
2 2
1 1
2 1
2 2
2 2
2 2
2 2
1 2
2 2
1 2
1 2
1 1
1 1
2 1
1 1
2 2
1 2
1 1
2 1
1 1
1 2
1 2
2 1
1 2
2 2
1 2
1 1
2 1
2 1
1 2
1 1
1 1
1 2
1 1
1 1
1 2
2 1
1 2
1 2
2 1
1 2
1 1
2 2
2 2
1 1
1 2
1 2
2 1
1 2
2 1
1 2
2 1
2 1
2 2
1 2
1 2
1 1
1 1
1 2
1 2
2 2
2 2
1 2
1 1
2 2
2 1
2 2
1 2
1 1
2 1
2 1
1 2
1 2
2 2
2 2
1 1
1 2
1 2
2 2
1 2
1 1
1 2
1 1
2 1
1 1
1 2
1 2
1 2
1 2
1 1
1 2
1 2
1 2
1 1
1 2
1 1
1 2
1 1
2 2
1 1
1 1
2 2
2 1
1 1
1 1
2 1
2 2
1 2
2 2
1 1
1 2
1 1
1 2
2 2
1 2
2 1
2 1
1 2
1 2
2 1
1 2
2 1
2 2
2 1
2 2
2 1
1 2
2 2
1 2
2 1
1 2
1 2
1 2
2 1
1 1
2 2
2 1
1 1
1 2
1 2
2 1
2 2
2 2
2 2
1 1
1 2
1 1
1 1
2 2
2 2
1 1
1 1
2 1
1 2
1 1
1 2
2 2
2 2
1 1
1 2
1 1
1 1
2 2
1 1
2 1
2 1
2 2
1 1
1 1
1 1
1 1
2 1
1 1
1 2
2 2
1 2
2 2
2 1
1 2
1 1
2 2
1 1
1 1
1 2
1 2
2 2
1 1
2 2
2 2
2 1
2 2
2 1
1 1
2 2
2 1
1 2
2 1
2 2
1 1
1 1
1 1
1 1
2 1
2 1
2 2
2 1
1 1
2 2
2 1
2 2
1 2
2 1
2 2
1 2
2 2
1 2
2 2
1 1
2 1
1 1
2 1
2 1
1 2
2 2
2 2
2 2
2 2
1 1
1 1
1 2
1 2
2 1
2 1
1 1
2 1
2 1
2 1
1 1
2 1
2 2
2 2
2 2
1 1
1 1
1 2
2 1
1 1
1 1
2 2
2 1
1 1
1 1
2 2
2 2
2 2
2 2
1 1
1 1
1 1
1 1
2 1
2 2
1 2
2 2
2 1
1 1
2 1
1 1
1 2
1 1
1 2
2 1
1 2
1 1
2 1
1 2
2 1
1 2
2 1
2 1
2 2
1 1
2 1
1 2
1 2
2 2
1 1
1 2
2 2
2 2
2 2
2 2
2 2
1 1
1 1
1 2
2 1
1 1
2 1
1 2
1 1
1 1
2 2
2 1
2 2
1 1
2 2
2 2
1 1
1 2
2 1
1 2
1 2
1 2
1 1
2 1
2 2
2 2
2 1
2 2
1 2
1 1
2 2
2 2
2 1
2 1
1 1
1 1
2 1
2 1
1 1
2 1
2 2
2 2
1 2
2 1
1 1
2 2
2 2
1 1
2 1
2 2
1 2
2 1
2 2
1 2
1 2
2 1
1 2
2 2
1 2
1 2
2 2
2 1
1 2
2 2
2 2
1 2
2 1
2 1
1 1
1 2
1 1
1 1
1 2
1 2
1 1
2 2
2 2
2 2
2 1
1 2
1 1
2 2
2 2
1 2
2 2
1 1
1 1
2 1
2 2
1 1
2 2
2 2
2 2
1 2
2 2
2 1
1 1
1 2
2 1
2 2
1 1
2 1
2 1
1 2
1 1
2 2
2 2
2 2
1 2
1 2
2 1
2 2
1 1
1 1
1 2
1 1
2 1
2 2
2 2
2 2
1 1
2 1
1 1
2 2
2 1
2 1
2 2
1 2
1 2
2 2
2 1
2 2
1 1
2 2
1 1
2 2
1 2
1 1
2 2
2 2
2 2
2 1
2 1
2 2
1 2
1 2
2 1
2 1
2 2
2 1
2 2
2 2
1 2
2 2
1 1
2 2
2 1
2 2
2 2
1 2
1 2
1 2
2 2
1 1
2 1
2 1
2 1
1 1
1 2
1 2
1 2
2 2
1 1
2 2
1 2
1 1
1 1
2 2
1 1
2 1
1 1
1 1
1 2
2 2
1 1
2 1
1 1
2 1
2 2
1 1
2 1
2 1
2 1
2 2
2 2
2 2
2 1
2 2
1 1
2 2
2 2
1 1
2 1
2 2
2 1
2 1
2 1
2 2
2 1
2 1
1 2
1 2
2 1
2 1
1 2
1 1
2 1
2 1
2 2
1 1
1 1
2 1
1 2
1 2
1 2
1 1
2 1
1 2
2 1
1 2
2 2
1 1
2 2
2 1
1 2
2 2
2 2
1 2
2 2
2 1
1 1
1 2
1 2
1 2
2 2
1 2
2 2
1 1
2 2
2 2
1 2
1 1
2 2
2 2
2 2
1 2
2 2
1 1
2 1
2 2
2 2
1 2
2 1
2 2
1 2
2 1
2 2
1 1
2 2
2 1
2 1
2 2
1 2
2 2
2 2
1 2
2 1
1 2
1 1
1 2
1 2
2 1
1 2
1 2
1 1
2 1
2 1
2 2
1 2
2 2
1 2
2 1
2 2
2 2
1 2
2 2
2 1
1 1
1 1
2 2
1 1
2 1
1 2
1 1
2 1
2 1
1 2
2 2
2 2
2 1
2 1
1 1
2 2
1 1
2 2
1 2
1 2
1 2
1 1
1 2
2 1
2 1
1 2
2 1
2 1
2 1
2 1
2 2
2 1
2 1
2 1
2 2
1 1
1 1
2 1
1 1
1 1
1 1
1 2
1 1
1 1
1 1
2 2
2 1
1 1
1 1
1 2
1 2
1 2
1 2
1 1
1 2
2 2
2 2
2 1
1 2
2 1
2 1
2 2
2 1
1 1
2 2
1 2
1 1
1 1
1 1
2 1
2 2
1 1
1 1
1 2
1 1
2 2
1 1
2 1
1 1
1 2
2 1
1 2
2 2
2 2
2 1
2 2
1 1
1 2
1 1
2 2
1 2
2 1
2 1
1 1
1 2
2 2
1 2
1 1
2 1
2 1
2 2
1 2
1 1
2 2
1 2
2 1
1 2
1 1
2 1
2 2
2 1
1 2
2 2
1 2
1 1
2 1
2 2
2 2
1 1
2 1
2 2
1 2
1 2
2 2
1 1
2 2
1 1
1 1
2 2
2 2
1 1
1 2
2 1
2 2
1 2
1 2
2 2
2 2
2 2
2 1
1 1
1 2
2 1
1 1
1 1
2 2
2 2
2 2
1 2
1 1
2 1
2 1
2 1
2 2
2 2
1 1
1 1
1 1
2 2
1 1
2 2
2 2
2 1
1 2
2 2
2 2
2 1
2 2
2 1
2 2
1 1
1 1
1 1
2 1
2 1
2 2
2 1
1 1
1 1
2 2
1 2
2 1
2 1
1 1
1 1
2 2
2 1
2 2
1 1
2 2
1 1
1 2
2 2
1 1
1 1
1 2
1 1
1 2
1 1
2 1
2 2
1 2
1 2
1 2
1 2
1 1
1 2
2 1
1 1
2 2
1 1
1 2
1 1
2 1
1 2
1 1
1 2
2 2
1 1
2 1
2 1
1 1
1 2
2 1
2 1
1 2
2 2
1 2
1 1
2 1
1 2
2 1
2 2
2 1
1 2
1 1
1 2
2 1
1 2
2 2
1 1
1 1
2 1
2 2
2 2
2 2
2 2
1 2
1 1
2 1
1 2
2 2
2 2
1 1
1 1
1 2
2 1
1 2
1 2
1 2
1 1
1 2
1 1
2 1
1 2
2 1
2 2
2 2
2 1
2 1
2 2
1 1
2 2
1 1
2 2
2 1
2 1
1 1
2 1
2 2
2 2
1 2
1 1
2 2
1 1
1 1
2 2
2 2
2 1
2 1
1 2
1 2
1 1
1 1
1 2
1 1
1 1
2 1
1 1
2 1
2 1
1 1
2 2
2 2
2 1
2 2
2 1
1 1
1 2
2 1
2 1
1 2
1 1
1 1
1 2
2 2
1 2
2 2
1 1
2 1
1 2
1 2
1 1
1 1
2 1
2 2
1 1
2 1
1 1
1 2
2 1
2 1
2 2
2 2
1 1
1 1
2 1
2 1
2 2
1 2
2 1
1 2
2 2
1 1
1 2
1 2
1 2
1 2
2 1
2 1
1 2
2 1
2 2
2 1
2 2
2 1
2 2
1 2
2 2
1 2
2 2
1 1
1 1
2 2
1 2
1 2
1 2
2 1
1 2
2 1
2 1
2 1
2 2
1 2
2 2
2 1
2 1
2 2
2 2
1 1
2 2
1 1
1 1
2 2
1 1
2 1
2 1
2 1
1 2
1 2
1 2
2 1
1 2
2 2
2 2
1 1
2 1
1 2
1 1
2 1
2 1
2 2
2 1
1 2
1 2
2 1
2 1
1 2
2 1
2 2
1 1
2 1
2 2
2 2
2 1
1 2
2 2
2 1
1 2
1 2
1 2
2 2
1 2
2 2
1 2
1 1
1 1
2 1
1 1
1 1
1 2
1 2
1 2
1 1
2 2
1 2
1 2
2 1
2 2
1 2
1 2
2 2
1 2
2 2
1 1
1 1
2 2
2 1
1 2
2 2
2 1
2 2
1 1
2 2
2 1
2 1
2 1
2 2
2 2
1 2
2 2
2 2
1 2
2 2
1 1
1 2
2 2
2 2
1 1
2 2
1 2
2 1
1 1
2 1
2 1
1 1
1 1
2 1
1 2
2 2
2 2
2 1
1 2
2 2
2 2
2 2
2 1
2 2
2 2
1 1
2 1
2 1
1 1
1 1
1 1
1 2
2 2
1 2
2 2
2 1
1 1
1 2
2 1
1 1
1 2
1 1
2 1
2 2
1 1
1 2
1 1
2 1
1 1
2 2
2 1
1 2
2 2
2 2
2 1
2 2
1 1
2 1
2 2
1 2
1 2
1 2
1 2
1 2
1 1
2 2
1 1
2 2
2 2
1 1
2 1
2 2
1 2
2 2
2 1
2 1
2 1
2 2
2 1
1 2
1 1
1 1
2 2
2 2
1 2
1 1
1 1
1 1
1 1
2 2
1 1
1 1
1 2
2 1
2 2
2 1
2 2
2 1
1 2
2 2
2 1
2 2
2 1
1 2
2 1
1 1
2 2
1 2
1 2
2 1
2 1
2 1
1 1
1 2
1 2
1 2
1 1
1 1
1 1
1 1
2 1
1 1
2 1
2 1
1 2
1 1
2 2
2 2
1 2
1 2
2 1
1 1
2 1
2 2
1 2
1 2
2 1
2 1
1 1
2 1
1 2
1 2
1 1
1 2
2 2
1 1
2 2
1 2
1 1
2 2
2 2
1 2
2 1
1 1
1 1
2 2
2 2
2 1
2 1
1 1
1 1
2 2
1 2
2 1
1 1
2 2
2 1
2 2
1 2
2 1
2 2
2 1
2 1
2 2
2 1
2 2
1 1
2 2
1 2
1 1
2 2
1 2
2 1
2 2
2 1
2 1
2 2
1 2
1 2
1 2
1 1
1 1
1 1
2 1
2 1
2 2
2 1
2 2
1 2
2 1
1 2
1 1
1 1
2 2
2 2
2 1
1 1
1 1
2 1
1 2
2 2
2 2
1 2
2 1
2 1
1 1
2 2
2 1
1 1
2 1
1 1
1 2
1 1
1 1
2 2
2 1
1 1
1 1
1 2
1 1
1 2
2 1
1 1
2 2
2 1
1 1
2 1
1 1
2 2
2 2
2 2
2 1
2 1
2 1
1 1
1 1
2 1
2 1
2 1
2 1
1 2
1 2
2 2
2 2
2 1
1 1
1 1
2 2
1 1
2 2
1 2
2 2
2 1
2 2
1 1
2 1
2 1
1 1
1 1
2 1
2 1
1 2
2 2
2 1
1 2
2 1
1 2
2 1
2 1
1 2
1 2
2 1
1 1
2 1
2 2
2 1
1 1
2 1
1 1
1 1
1 2
1 1
2 1
1 1
1 2
2 2
2 1
1 1
2 1
1 1
1 1
2 1
2 2
1 2
2 2
2 1
2 2
1 1
2 1
2 2
2 2
1 1
1 1
1 2
2 2
1 1
1 2
1 1
2 2
2 2
1 1
1 1
2 1
2 1
2 2
1 2
1 2
2 1
1 2
2 1
2 2
2 2
1 1
1 1
2 2
2 2
1 2
2 1
1 1
1 2
1 1
1 1
1 1
1 1
2 1
1 2
2 1
2 2
2 1
1 1
1 1
1 1
1 1
1 1
2 2
2 1
1 2
1 1
2 2
2 1
1 1
2 1
2 1
1 1
1 1
2 2
1 2
2 1
2 2
2 1
1 2
2 1
2 1
1 2
2 1
1 1
1 2
1 1
1 1
2 2
2 2
1 2
1 1
2 1
2 1
1 1
2 1
1 1
2 1
2 2
2 2
1 1
1 1
2 1
2 1
1 1
2 1
1 1
2 2
1 1
2 1
1 2
1 2
2 2
2 1
1 2
1 2
2 2
1 2
1 2
2 1
2 1
2 1
2 1
1 2
2 2
1 2
2 1
1 2
1 2
2 1
1 2
2 1
2 2
1 1
1 2
2 1
2 2
2 2
1 2
1 2
2 2
1 1
2 2
2 2
1 1
1 1
1 1
2 2
2 2
1 2
2 2
1 1
1 2
2 2
2 2
1 1
2 2
2 1
2 2
1 2
2 2
2 2
1 2
2 2
1 2
2 1
2 2
2 2
2 1
1 1
1 1
1 1
1 1
1 2
1 2
2 1
2 1
2 2
1 2
1 2
1 2
2 1
2 2
1 1
1 2
1 1
2 1
1 2
2 2
2 2
1 1
1 2
1 2
2 1
2 2
2 1
2 2
1 2
1 2
1 1
2 2
2 2
2 2
2 1
2 2
2 1
2 2
2 1
1 2
1 1
1 2
2 1
1 1
2 1
2 1
1 2
2 1
2 1
1 2
2 2
1 2
1 2
2 2
1 2
1 2
2 2
2 2
1 2
1 2
2 1
2 2
1 2
2 1
2 1
2 1
2 1
2 2
1 2
2 1
2 2
2 1
1 1
2 1
2 2
2 2
1 2
2 1
2 1
1 1
1 1
1 1
2 2
1 2
1 1
2 2
1 1
2 1
2 2
2 1
1 1
1 2
1 2
2 1
2 2
1 1
2 1
2 2
2 1
2 1
2 2
2 2
2 2
2 1
2 1
2 2
1 2
1 2
2 2
2 1
2 1
2 1
1 1
1 2
1 2
2 1
1 1
2 1
2 1
1 1
2 2
1 2
2 1
1 2
2 2
1 2
2 1
1 2
1 2
1 1
2 1
2 2
2 2
1 2
2 2
2 1
1 1
2 1
2 2
2 2
1 2
2 2
1 2
1 1
1 2
1 1
1 1
2 2
1 2
1 2
2 1
2 2
1 2
2 1
1 1
2 2
2 1
2 1
1 1
1 2
2 2
2 2
1 1
1 2
2 1
1 2
2 2
1 2
2 1
2 2
2 2
2 1
1 1
2 2
2 2
2 1
1 2
2 1
2 1
2 1
2 1
1 1
1 1
1 2
2 2
2 1
2 1
1 2
2 2
2 1
1 2
2 2
2 2
1 2
2 1
2 1
2 1
2 2
2 1
2 1
1 1
1 1
2 2
1 1
2 2
1 2
2 2
2 2
2 2
1 2
1 1
2 2
1 1
1 1
1 1
1 1
1 2
2 2
2 1
2 2
2 2
1 1
2 2
1 2
1 1
1 2
1 2
1 2
2 1
1 2
1 2
2 1
2 2
1 1
1 1
2 2
1 1
1 1
1 2
2 1
1 2
2 2
1 1
1 1
1 1
1 1
2 2
1 2
2 1
2 2
2 1
2 2
1 1
2 2
2 2
1 1
2 2
2 1
2 2
1 2
1 1
1 1
1 2
2 1
2 1
2 1
2 1
2 1
1 2
2 1
1 2
1 1
1 2
2 1
2 2
1 1
1 2
1 1
2 2
2 2
2 1
1 2
1 2
1 2
2 1
1 1
1 1
1 1
1 1
2 1
2 2
1 2
1 2
2 2
2 2
2 2
1 1
2 1
2 2
1 2
2 1
2 1
1 2
1 2
1 2
1 1
1 2
2 2
2 1
1 1
1 1
1 1
2 2
2 1
1 2
2 1
2 2
2 2
2 1
1 1
1 2
2 2
2 1
1 1
1 1
2 2
1 1
2 1
2 2
2 2
2 1
2 1
2 1
1 1
2 2
1 1
2 1
2 1
1 1
2 2
1 1
2 2
1 1
1 2
1 2
2 2
2 2
2 1
1 1
2 2
1 2
1 2
2 1
2 2
2 1
2 2
2 1
1 2
1 2
1 2
2 1
1 1
1 1
1 2
2 2
1 2
2 2
2 1
1 2
1 1
1 1
1 1
2 2
2 2
1 2
2 1
1 1
2 1
2 2
2 2
1 1
1 2
1 1
1 2
2 2
1 1
1 2
1 2
2 1
2 2
1 2
1 2
2 1
2 2
1 1
2 1
2 2
1 2
2 2
2 1
2 2
1 2
2 2
2 2
2 1
2 1
2 1
2 2
2 1
1 2
2 1
1 2
1 2
1 1
1 2
2 1
2 2
1 2
1 2
1 1
2 2
1 2
1 1
2 2
2 2
1 2
1 2
2 1
2 2
2 2
1 1
1 1
1 2
2 1
2 2
1 1
1 2
1 2
1 2
1 1
1 1
2 2
1 2
1 2
1 2
2 2
1 2
2 1
2 1
2 1
2 2
2 1
2 1
2 1
2 2
1 1
1 2
2 1
1 1
2 1
2 1
2 2
2 2
1 2
2 1
2 1
1 1
2 2
1 1
1 2
1 2
1 2
1 2
1 1
1 2
2 2
2 2
2 2
2 1
2 2
1 2
1 2
1 1
2 1
2 2
2 1
2 2
1 1
1 2
1 2
2 2
2 1
2 1
2 2
2 1
1 2
2 2
2 2
2 2
2 2
2 1
1 2
2 2
1 1
2 1
1 2
2 1
2 1
2 1
2 2
2 1
1 1
1 1
2 2
1 1
1 2
2 2
1 1
1 2
2 2
2 2
2 1
2 2
2 1
2 2
1 2
2 1
2 1
2 1
2 2
2 1
2 2
1 2
1 2
1 1
2 2
1 1
1 2
1 2
1 1
1 2
1 2
1 2
2 1
1 1
2 2
2 2
1 2
1 1
2 2
2 1
1 2
1 1
1 2
1 1
2 1
2 1
1 2
1 2
1 2
1 1
2 2
2 1
2 1
2 1
1 2
1 1
2 2
2 2
2 2
2 1
2 2
2 1
1 1
1 1
1 2
2 2
2 2
1 1
1 2
2 2
2 2
1 2
1 2
1 1
2 2
1 2
1 1
2 1
1 2
2 2
1 2
2 1
2 2
2 1
2 1
1 2
1 2
1 2
1 2
1 1
2 2
1 2
1 1
2 2
2 1
1 2
1 2
2 1
2 2
1 2
1 2
1 2
2 1
1 1
2 1
2 1
2 2
1 2
2 2
2 1
2 1
1 2
1 1
2 1
1 2
2 2
2 1
2 2
1 2
2 2
1 1
2 1
2 2
2 2
2 1
2 1
1 2
1 2
1 1
1 2
2 1
2 2
1 2
1 1
2 1
2 1
2 1
1 1
1 1
1 1
1 2
2 2
2 2
2 2
1 2
2 2
2 1
1 1
2 1
2 2
2 1
2 1
2 2
2 2
2 1
2 2
1 2
1 1
2 1
1 1
2 1
1 2
2 1
2 2
1 1
1 2
2 1
2 1
1 2
2 2
2 2
1 1
1 1
1 2
2 1
1 1
1 2
1 1
2 1
1 1
2 2
2 2
1 2
1 2
1 1
2 2
1 1
1 2
1 2
1 2
1 1
2 2
2 1
2 2
1 1
2 2
1 1
1 1
1 1
2 1
1 1
2 2
1 2
1 2
2 2
1 2
2 2
1 1
1 1
2 2
2 1
2 2
1 1
2 1
1 2
2 1
2 1
2 1
1 2
1 2
2 1
1 2
2 1
2 2
1 1
1 1
1 1
2 1
2 1
2 1
1 2
2 2
2 2
2 1
2 1
1 2
1 2
2 2
2 2
2 1
1 2
1 1
2 1
2 2
2 2
2 2
1 1
1 1
2 1
1 1
2 1
2 2
2 2
2 2
2 1
2 2
2 1
2 2
2 1
2 2
1 1
2 1
2 2
2 2
1 2
2 2
2 1
2 2
1 1
2 1
2 2
2 2
1 1
2 2
1 1
1 2
2 2
1 2
1 2
1 2
1 2
2 2
2 2
1 1
1 2
2 2
1 1
2 2
1 1
1 1
2 2
1 1
1 2
1 2
1 2
1 2
2 1
1 2
2 2
1 1
1 1
1 1
1 2
1 2
1 1
2 1
2 2
2 2
1 1
2 2
2 2
2 1
2 1
1 1
2 2
1 2
1 2
2 2
2 2
2 2
1 1
2 1
1 1
2 2
1 2
2 1
1 1
1 1
1 1
1 1
1 1
2 1
1 1
2 2
2 1
1 2
1 2
2 1
1 2
2 2
1 1
2 2
1 2
1 1
2 2
1 2
1 2
2 2
1 2
1 2
1 1
2 2
1 2
1 1
2 2
2 2
2 1
2 2
2 1
2 2
1 1
1 1
1 2
2 1
2 1
2 1
1 2
1 1
1 1
2 1
2 1
2 1
2 2
1 2
1 2
2 2
1 1
1 1
2 2
2 1
1 2
1 2
2 2
2 1
1 1
2 2
2 2
2 2
1 2
2 2
1 1
1 1
2 1
1 2
2 2
2 1
1 1
1 2
2 1
2 1
2 1
1 2
1 2
2 2
1 2
1 1
1 2
2 2
2 2
1 1
1 1
1 1
1 2
2 1
1 1
1 1
2 2
1 1
1 1
1 1
1 1
1 2
1 1
2 2
2 2
2 2
1 1
2 2
2 1
1 1
1 1
2 1
2 1
1 1
2 2
2 2
2 1
2 2
1 1
1 1
2 2
1 1
2 2
2 1
1 1
1 1
1 1
1 1
1 2
1 2
2 1
1 2
1 1
1 2
1 2
2 1
1 2
2 2
1 1
1 1
2 1
1 2
1 2
2 2
2 1
1 2
2 2
2 2
1 2
1 2
2 2
2 1
1 2
1 2
1 1
1 2
1 1
2 2
2 2
2 2
1 1
2 1
2 1
2 2
2 1
2 2
1 2
2 2
1 1
1 1
2 2
2 1
2 2
2 1
2 1
1 2
2 2
2 2
1 2
2 1
2 1
1 2
2 2
2 2
1 1
2 1
2 2
1 2
1 2
1 1
2 1
2 2
1 1
1 1
2 1
2 1
2 2
1 1
1 1
2 2
2 1
1 2
1 1
1 1
1 2
2 2
1 1
1 2
1 2
2 1
2 1
1 1
1 1
1 1
1 2
1 2
1 1
1 2
1 2
1 2
2 2
2 1
2 1
2 2
2 2
1 1
2 1
1 2
1 1
2 2
2 2
2 1
1 2
1 1
1 2
2 2
2 1
2 2
2 2
2 1
2 2
1 1
2 1
2 1
1 1
1 1
1 2
1 1
2 1
1 2
1 1
2 2
2 1
2 1
1 2
1 2
2 2
1 1
1 1
2 2
1 1
1 2
2 2
1 2
2 1
1 2
1 1
2 2
2 1
1 2
1 2
1 1
1 1
2 1
1 2
2 2
1 1
2 2
1 2
2 2
2 1
2 2
1 2
1 1
1 2
2 2
1 2
2 2
2 1
1 2
1 1
2 2
2 1
1 2
2 2
2 1
2 2
2 2
1 1
2 1
2 1
1 2
2 1
1 1
1 2
2 1
2 2
1 1
1 2
1 2
1 2
1 1
2 1
1 2
1 1
1 1
1 1
2 1
1 2
2 2
2 2
1 2
1 2
1 2
2 1
2 2
2 1
2 1
2 2
1 2
1 2
2 2
1 2
2 1
2 1
1 1
2 2
1 1
1 1
2 2
2 1
2 1
2 1
1 1
1 2
2 2
1 1
1 1
1 2
1 1
2 2
2 1
2 1
2 1
2 1
1 2
1 2
1 1
2 1
2 1
1 2
1 2
1 1
1 2
2 2
1 1
1 2
2 1
2 2
1 1
1 2
2 2
2 1
2 1
2 2
2 1
1 1
1 1
1 2
1 2
1 2
1 2
2 2
1 2
1 2
1 1
1 2
2 1
2 2
2 2
1 1
2 2
2 1
2 1
1 2
1 2
1 1
2 1
1 2
1 1
1 2
2 1
1 2
1 2
2 2
2 1
2 1
2 2
1 2
1 1
1 1
2 2
2 1
1 1
2 2
1 2
2 2
1 2
2 2
2 2
2 1
2 1
2 2
2 2
2 2
2 2
1 2
2 2
2 1
1 1
2 2
1 2
2 2
1 1
2 2
2 2
1 1
1 1
2 2
1 2
1 2
1 2
1 1
1 1
2 2
1 2
2 2
2 1
2 2
1 1
2 1
2 1
1 2
2 2
1 2
2 2
1 1
1 2
2 2
1 1
1 2
1 2
2 1
2 1
2 2
1 1
2 2
1 1
2 1
1 2
1 2
2 1
1 1
1 1
2 2
1 1
1 2
2 2
2 2
2 2
2 2
2 2
2 1
1 1
1 2
2 2
1 1
2 2
1 2
1 1
2 1
1 2
1 1
2 2
1 1
2 2
2 1
1 1
2 2
1 2
2 1
2 2
2 2
1 2
2 1
1 1
1 2
2 1
2 1
1 2
2 1
2 1
1 1
1 2
1 2
2 1
1 2
2 1
1 2
2 1
1 2
1 1
2 1
2 2
1 1
2 1
1 1
1 1
1 1
1 1
1 1
2 1
2 2
1 2
2 2
1 2
1 1
1 1
1 2
2 1
2 1
2 2
2 1
1 1
1 2
1 2
1 2
2 1
1 2
1 1
1 2
1 2
2 2
2 2
2 2
2 2
2 1
1 2
2 2
1 1
2 1
1 1
1 1
2 1
2 2
2 2
1 2
1 1
2 2
1 2
1 1
2 2
1 2
2 2
1 1
2 2
1 1
1 1
2 2
1 2
1 1
2 1
1 2
2 1
1 2
1 2
1 2
1 1
1 1
1 2
1 1
2 2
2 2
1 2
1 1
1 1
1 1
2 2
2 2
2 2
2 2
1 1
1 2
2 2
1 2
2 2
1 1
2 1
2 2
2 1
1 1
1 1
2 2
2 2
1 1
2 2
1 1
2 1
1 2
2 2
2 2
1 1
1 2
1 1
1 2
2 1
2 2
1 1
1 2
2 2
2 2
1 2
1 1
2 1
2 1
2 2
2 2
1 2
2 1
2 1
2 2
2 1
1 2
1 1
1 2
1 2
1 1
2 1
2 1
1 1
2 2
2 1
2 1
2 1
1 1
1 1
2 2
1 1
2 2
2 2
2 1
2 2
2 1
2 1
2 1
1 1
2 1
2 2
2 1
1 2
2 1
1 2
2 2
2 1
1 2
2 1
1 2
2 2
2 1
1 1
1 2
1 2
1 2
1 1
1 2
1 1
2 1
2 2
1 2
2 1
1 2
1 1
1 1
2 1
1 1
2 1
1 1
2 2
2 1
2 2
2 2
2 2
2 2
1 2
2 2
2 2
2 1
2 2
1 2
1 2
1 1
1 2
1 1
1 2
2 2
2 1
1 2
2 1
2 1
1 1
2 1
1 2
1 1
2 2
2 1
1 2
1 1
2 2
2 2
2 1
2 1
2 2
1 2
1 2
2 1
1 2
1 1
1 2
2 1
2 2
1 1
1 1
1 2
1 2
2 2
2 1
1 2
2 2
1 1
1 1
1 1
2 2
1 2
2 2
2 2
2 2
1 2
1 2
2 1
2 2
1 1
1 1
2 1
2 1
2 2
1 1
1 2
1 2
2 2
1 1
2 2
1 1
2 2
2 1
2 2
2 2
1 1
1 1
2 2
2 2
1 2
2 2
2 1
1 1
2 2
1 1
2 1
2 1
2 2
1 2
1 2
2 1
2 1
2 1
1 2
1 1
2 1
2 2
2 1
2 1
1 2
1 2
1 1
1 1
1 1
2 1
1 2
1 2
1 1
2 2
2 1
1 1
1 2
2 2
2 2
2 1
2 2
1 2
2 2
1 2
1 2
1 1
2 1
1 1
1 1
2 1
1 1
2 1
1 1
2 2
2 1
1 2
2 2
2 1
1 2
2 2
2 2
2 2
1 2
2 1
2 2
2 1
1 1
2 2
1 1
2 1
2 2
2 2
1 1
2 1
1 2
1 1
1 2
1 2
2 1
2 1
2 2
2 1
2 1
1 1
1 1
2 2
1 2
2 2
1 1
1 2
1 2
2 2
2 1
2 2
2 2
2 1
2 2
2 1
2 1
2 2
1 1
1 2
2 2
1 1
1 2
1 2
1 2
2 1
2 1
2 1
1 1
2 1
1 1
2 1
1 2
1 1
2 1
2 1
2 2
1 1
1 2
2 2
1 1
2 1
1 1
2 2
2 2
2 2
1 1
2 1
1 2
1 1
2 2
2 2
1 2
2 1
2 2
2 2
1 1
2 1
2 1
2 1
1 1
1 2
1 1
2 1
1 1
1 2
2 2
1 2
2 1
1 2
1 2
2 1
1 1
2 1
1 2
2 1
2 2
1 1
1 2
2 1
2 2
1 1
1 1
1 2
1 2
2 1
2 2
2 2
1 1
1 2
2 1
2 2
1 2
2 2
2 1
2 1
2 1
2 2
2 1
1 1
1 2
1 1
1 1
1 2
1 1
1 1
2 2
1 2
1 1
2 2
2 2
1 1
2 2
2 2
1 1
2 2
1 2
2 2
2 1
1 1
1 1
2 2
1 1
1 1
1 1
2 2
1 1
1 1
2 2
2 2
2 2
1 1
2 2
2 2
2 1
2 1
1 2
2 2
2 2
2 1
2 2
1 1
1 1
1 2
2 1
1 2
2 1
2 2
1 2
2 1
1 1
2 2
1 1
1 2
2 1
1 1
1 2
1 1
1 1
1 2
2 1
2 1
2 1
2 1
1 2
1 2
1 1
2 1
2 2
1 2
1 2
2 2
1 2
2 2
2 2
1 1
2 1
1 1
2 1
1 2
2 1
2 2
2 1
2 2
2 1
1 1
1 1
1 1
1 2
2 2
2 1
2 2
2 1
2 1
2 2
2 1
2 1
1 2
2 1
2 2
2 1
1 2
1 2
1 2
2 2
2 2
2 1
2 1
2 1
2 2
2 1
2 1
1 1
2 2
1 2
1 2
2 1
1 1
2 1
2 2
1 2
1 1
1 2
2 2
2 2
1 1
1 2
1 2
1 1
1 2
1 1
1 2
2 2
1 2
1 1
2 2
2 2
1 1
2 2
2 2
1 2
2 1
2 2
2 2
1 2
2 2
1 1
2 1
2 2
2 2
1 2
1 2
1 1
2 1
1 2
2 1
2 1
2 2
2 1
2 1
1 1
1 1
2 1
1 1
1 2
1 1
2 2
1 2
1 2
1 1
2 1
2 1
2 2
1 2
1 2
2 2
1 1
1 1
2 1
1 1
1 1
1 1
1 1
2 1
1 1
2 1
1 2
2 2
2 2
2 1
2 1
2 1
1 1
1 2
2 1
2 1
1 1
1 1
1 1
1 2
1 2
1 1
1 1
1 2
2 2
1 2
1 2
1 1
2 1
1 1
1 2
2 1
2 1
1 1
2 2
2 2
1 1
2 2
2 2
2 1
2 1
2 2
2 1
1 1
1 2
1 1
1 1
2 2
1 2
1 2
2 1
2 2
1 2
2 1
1 1
2 1
1 2
2 2
1 2
1 1
2 1
1 2
1 1
1 2
2 1
1 2
1 2
2 1
1 2
1 1
1 2
2 2
1 2
2 2
1 2
1 1
2 2
2 1
1 2
2 2
1 2
1 2
2 2
1 1
1 1
1 2
2 1
1 1
2 2
1 1
2 2
2 1
1 1
2 2
2 2
2 2
1 2
1 2
1 2
2 1
2 2
1 1
2 2
2 1
1 2
2 2
2 2
2 2
1 1
1 1
1 2
2 1
1 1
2 1
1 2
1 1
2 1
2 1
2 1
2 1
2 1
1 1
1 2
2 2
1 2
1 2
2 1
1 1
2 1
2 2
1 1
2 1
1 1
2 2
1 2
1 1
2 2
1 2
2 1
1 2
2 2
1 2
2 1
2 2
2 2
2 2
2 1
2 1
2 2
1 2
2 1
2 2
1 2
2 2
2 1
1 2
2 2
2 1
2 1
1 2
1 1
2 2
1 2
2 2
2 1
2 2
1 2
2 2
2 1
2 2
2 2
1 2
1 1
2 1
2 1
1 1
1 2
1 1
2 2
2 2
2 2
1 2
1 1
1 2
1 1
1 2
2 2
2 2
2 2
2 2
2 1
2 1
2 2
1 2
2 2
1 2
1 2
2 2
1 2
1 2
2 1
1 2
1 2
2 1
1 1
2 1
1 1
2 2
2 1
2 1
1 1
1 1
2 1
2 2
1 2
2 1
2 1
1 2
1 1
2 1
1 1
1 2
1 1
2 1
1 2
1 2
1 1
2 2
1 1
2 2
2 1
1 1
1 2
1 2
1 1
2 2
1 2
1 2
1 2
2 1
2 1
2 2
2 1
2 1
2 2
1 2
1 2
1 2
2 1
1 2
2 1
1 2
2 1
1 1
1 2
2 1
2 1
2 2
1 2
1 1
2 2
1 1
1 2
1 2
1 1
2 1
2 1
1 1
1 1
1 1
1 2
2 1
2 1
2 1
2 2
1 1
1 2
1 1
2 1
1 1
1 1
2 1
2 1
2 1
1 1
2 2
1 1
2 2
2 2
1 1
1 2
1 1
2 2
1 2
1 1
1 2
1 1
1 1
1 2
2 1
2 1
2 1
2 2
1 1
2 2
2 1
2 1
2 2
1 1
2 1
1 2
2 2
1 2
1 1
1 2
1 2
2 2
1 2
1 2
1 1
2 1
1 1
2 2
2 1
1 2
2 2
2 1
2 1
1 2
2 2
1 2
1 2
1 2
2 1
1 1
1 1
2 1
1 1
1 1
2 1
1 2
1 2
2 1
1 1
2 1
1 1
1 2
2 2
1 1
1 1
2 2
2 1
1 2
1 2
2 2
2 1
2 1
1 1
2 2
1 1
1 2
1 2
2 2
2 1
2 2
1 1
1 2
2 2
1 1
2 1
2 2
1 2
2 1
2 1
2 2
2 1
2 2
2 1
2 1
2 1
2 2
2 2
1 2
1 1
2 2
1 2
2 2
2 1
2 2
1 2
1 2
2 1
2 2
1 1
1 2
2 2
2 2
1 2
2 1
2 1
2 1
2 2
1 1
2 1
1 2
1 1
1 2
1 1
1 2
2 1
1 2
1 1
2 1
2 2
2 2
1 2
2 1
2 1
1 2
2 1
1 1
2 2
1 2
1 1
1 1
1 2
1 1
1 1
2 2
1 1
2 1
2 1
1 2
2 1
2 2
2 2
2 1
2 1
2 1
1 1
2 1
2 2
1 1
2 2
1 1
1 1
2 1
1 2
1 1
1 2
1 1
2 2
1 1
2 2
2 2
2 2
1 2
1 2
2 1
2 2
2 2
2 2
1 1
1 2
2 2
1 1
2 1
1 1
1 1
1 2
1 2
2 1
1 1
2 1
1 1
2 2
2 2
2 1
1 1
1 1
1 1
2 2
1 2
1 1
2 1
1 2
1 2
1 2
2 2
1 1
2 2
1 1
2 2
1 2
1 2
2 2
2 1
2 1
1 2
2 2
1 1
2 2
1 1
2 2
2 1
1 1
1 1
2 2
1 1
2 2
2 2
1 1
1 2
1 1
2 2
2 1
2 1
2 2
1 1
2 1
1 2
2 2
1 1
1 2
2 1
1 1
1 2
2 1
1 1
1 2
2 2
1 2
2 1
2 1
2 2
1 1
2 2
1 2
1 2
1 1
2 1
2 2
1 1
2 2
1 1
1 2
1 2
1 2
2 2
1 2
1 1
2 1
1 2
2 1
2 2
2 1
2 2
2 1
2 1
2 1
2 1
2 1
2 1
1 2
2 2
2 2
1 2
1 2
1 1
2 1
2 1
1 1
2 2
2 2
2 1
2 2
2 1
1 1
1 1
2 1
2 1
2 2
1 1
2 1
2 1
1 1
1 2
1 1
1 2
1 2
2 2
1 1
2 1
1 1
1 2
2 1
2 1
2 1
1 1
1 1
1 1
1 2
1 2
1 2
2 2
2 1
1 1
2 2
2 1
1 1
1 1
2 2
2 1
2 2
1 2
2 1
2 2
2 1
2 2
1 2
2 1
2 1
1 2
1 1
2 2
2 2
2 2
1 1
1 2
2 2
2 1
2 2
1 1
1 2
2 1
2 1
2 1
1 1
2 2
2 2
1 2
1 2
1 1
1 2
2 2
2 1
1 1
1 2
1 1
1 1
1 2
2 1
2 2
1 1
2 2
2 1
2 2
2 1
1 1
2 1
1 2
2 2
1 2
2 2
1 1
2 1
2 2
1 1
2 1
2 1
1 2
2 2
1 2
1 2
2 2
1 2
2 1
2 1
1 2
2 1
1 1
1 2
1 1
1 2
1 1
2 2
2 2
2 2
2 1
1 2
2 1
2 2
1 1
1 2
2 2
1 1
1 2
2 2
2 1
1 2
2 2
1 2
1 2
2 1
1 2
1 2
2 1
2 1
1 1
2 1
2 1
1 1
1 1
1 1
2 1
2 1
2 2
2 1
2 1
2 1
2 1
2 2
1 1
1 1
1 1
1 1
2 2
1 1
2 1
2 2
2 2
1 1
2 2
1 2
2 2
1 2
2 1
1 2
2 1
2 2
1 1
1 2
1 1
1 2
2 2
2 1
1 2
1 2
2 1
1 2
1 2
2 2
1 2
2 1
1 1
2 2
1 2
2 2
1 1
1 2
2 2
2 2
2 2
1 1
1 2
2 2
1 1
1 2
1 1
1 1
2 2
2 1
2 2
1 1
1 1
2 1
1 2
2 1
1 2
2 1
2 1
2 2
1 1
1 2
1 1
1 1
2 2
1 2
2 2
2 2
1 1
2 1
1 2
2 2
1 2
2 2
1 2
1 1
1 1
1 1
2 2
2 1
2 1
2 1
2 2
2 1
1 1
1 2
1 2
2 2
2 2
1 1
1 2
1 1
2 1
2 1
2 2
2 2
1 1
2 1
2 2
2 2
2 2
1 1
2 2
1 1
1 1
1 1
1 1
1 1
2 2
1 2
2 1
1 2
1 1
2 1
1 2
1 1
1 2
2 1
1 2
1 1
1 1
1 1
2 2
1 2
1 2
1 2
1 1
1 2
1 2
2 2
2 1
1 1
2 1
2 1
2 2
1 2
2 2
2 1
2 1
2 2
1 1
1 1
1 1
2 1
1 1
1 2
1 2
1 1
2 2
2 2
2 2
2 1
1 2
1 1
1 1
2 1
1 1
1 2
1 1
1 2
1 1
2 1
2 1
1 1
1 1
1 2
2 1
1 2
1 1
2 2
1 1
2 1
1 1
2 1
2 2
2 2
1 2
1 1
1 1
2 2
2 1
2 2
1 2
2 1
1 1
1 1
2 2
1 2
1 2
2 1
1 2
2 2
1 2
2 2
2 2
2 2
2 2
1 1
2 2
1 1
1 2
2 1
1 1
1 2
1 1
2 1
1 2
1 1
1 1
1 2
1 1
2 1
2 1
2 1
2 1
2 2
1 1
1 2
2 2
1 1
1 1
1 2
2 1
1 1
1 1
2 1
2 2
1 1
1 1
2 1
2 2
2 1
1 1
1 1
2 2
1 2
1 2
1 1
1 1
2 1
1 1
1 2
2 1
2 2
2 2
1 1
1 2
2 2
1 1
1 2
1 2
2 2
1 1
1 2
2 1
2 2
1 2
2 2
2 1
2 2
2 1
2 1
2 1
1 2
2 1
2 1
2 1
2 2
1 2
1 2
2 1
2 2
2 1
1 1
1 1
2 2
2 2
2 1
1 1
1 2
2 2
2 2
1 2
2 1
2 1
2 2
2 1
1 2
1 2
2 2
2 2
1 2
2 1
1 1
2 1
2 2
2 1
2 1
2 1
1 2
2 1
2 1
2 2
1 1
2 2
2 1
1 2
1 1
1 2
1 1
1 1
1 1
2 2
2 2
2 1
2 2
1 1
1 1
1 1
1 1
2 2
2 1
1 2
2 1
2 2
2 1
1 2
1 2
2 1
2 2
2 2
1 2
2 1
1 2
2 2
2 2
1 1
1 1
2 1
2 1
1 2
1 2
1 1
1 2
1 2
1 2
1 1
1 1
1 2
1 2
2 2
1 2
2 1
1 2
2 2
2 1
2 1
1 2
1 2
2 2
1 1
1 1
2 1
1 1
1 2
1 2
1 1
1 1
2 1
2 1
2 1
1 2
1 2
1 2
2 2
2 2
1 1
1 1
1 2
1 2
2 2
1 1
1 1
1 1
1 2
1 1
2 2
1 1
2 1
1 2
1 1
2 2
1 2
2 1
2 1
2 2
1 2
1 2
2 2
2 2
2 1
1 1
1 1
2 2
1 2
2 2
1 1
2 2
1 1
1 2
1 1
1 2
2 1
2 1
1 1
2 2
2 1
1 1
1 1
2 1
1 2
2 1
1 2
2 2
1 2
2 1
1 2
2 2
2 2
1 2
1 1
1 1
2 2
2 1
1 2
1 2
1 2
2 2
2 2
2 1
2 2
2 1
2 2
2 1
1 2
2 1
1 2
2 1
2 1
1 1
2 2
2 1
2 1
2 2
2 2
2 1
2 1
2 1
2 1
1 1
2 1
1 2
1 2
1 1
1 1
2 2
2 1
1 2
2 2
2 1
1 2
1 2
2 2
1 2
2 2
2 2
2 1
2 2
2 1
1 2
1 1
1 1
1 2
2 1
1 1
1 1
1 1
2 2
2 2
2 2
1 2
1 1
1 1
1 2
2 1
1 2
2 1
1 1
1 1
2 2
1 1
2 2
2 1
2 1
1 2
2 1
2 2
1 1
1 1
2 1
2 2
1 2
2 2
2 2
2 1
2 2
1 2
2 2
1 2
2 1
2 1
2 1
2 1
1 2
2 1
1 1
2 1
2 2
1 1
2 2
2 1
2 2
2 2
2 2
2 1
1 1
1 1
1 2
1 1
1 2
2 1
1 2
2 2
1 1
2 1
2 2
2 2
2 1
1 2
1 1
1 2
1 2
1 2
2 2
2 2
2 1
1 1
1 2
2 2
1 1
1 2
2 2
2 1
1 2
2 1
2 2
2 1
1 2
1 1
2 1
1 1
1 2
1 2
2 2
1 1
1 2
1 1
1 1
1 2
1 1
2 1
1 2
2 2
2 2
2 2
2 2
2 1
1 2
1 2
2 1
1 1
1 2
1 1
1 1
1 2
1 1
1 1
1 2
1 2
1 1
1 1
1 1
1 1
2 1
2 2
1 1
1 1
1 1
1 2
2 2
1 2
2 2
1 1
2 2
2 2
2 1
2 1
1 1
1 1
2 1
1 1
2 2
2 1
1 1
2 2
2 1
1 2
1 1
1 1
1 1
1 1
1 1
2 2
2 1
2 1
1 1
2 2
1 2
2 1
2 1
1 1
1 1
1 1
2 1
1 1
2 1
1 2
2 2
2 2
1 2
1 1
2 2
2 1
2 2
2 1
1 1
1 1
2 2
1 1
2 1
1 2
1 2
1 1
2 2
2 2
1 1
2 1
2 2
2 2
1 2
2 2
2 1
2 2
1 1
1 1
2 2
1 2
2 1
2 2
2 2
2 1
2 1
1 2
1 2
1 2
2 1
1 2
1 2
2 2
1 2
2 2
2 1
2 1
1 2
2 2
1 1
1 2
2 2
2 1
2 1
1 2
1 1
2 2
2 1
2 2
1 2
1 2
1 2
2 1
1 1
2 1
1 1
1 1
1 2
1 2
2 2
2 1
2 1
1 1
2 1
1 1
2 1
2 2
1 1
2 1
1 1
1 2
1 1
2 2
2 2
2 2
2 2
1 1
2 2
1 1
2 1
2 1
2 2
2 1
1 1
1 1
1 1
2 1
1 2
2 2
1 1
2 1
2 2
1 1
1 2
1 1
1 1
2 2
2 1
1 2
1 1
1 2
1 2
2 2
2 2
2 2
1 1
1 2
2 2
1 2
1 1
1 2
1 1
1 2
2 1
1 1
1 1
1 2
1 2
1 2
2 2
2 1
2 2
2 2
2 1
2 1
1 1
2 2
2 1
2 1
2 2
1 1
1 1
1 1
1 1
1 2
1 2
2 1
2 2
1 1
1 1
2 2
2 1
1 1
2 1
2 2
2 2
2 1
2 1
2 1
2 1
2 2
2 1
2 2
2 1
2 1
1 2
2 1
2 1
2 1
1 1
2 2
2 2
2 2
1 2
1 1
2 1
1 2
1 1
2 2
2 2
2 2
2 1
1 1
2 2
2 1
1 2
2 2
2 2
1 1
2 2
2 1
2 2
2 1
2 1
1 2
1 1
1 1
2 1
2 1
2 2
1 1
2 2
2 2
2 2
1 1
1 2
2 1
2 1
1 2
1 2
2 1
1 1
2 2
2 2
2 1
2 1
1 2
2 2
2 1
2 1
2 1
1 2
2 1
1 1
1 2
1 1
2 1
2 1
1 2
1 2
1 1
1 1
2 2
2 1
1 2
1 1
2 2
2 1
1 2
2 2
2 2
1 1
2 2
1 1
2 2
1 1
2 1
1 2
2 1
1 2
1 1
2 1
1 2
2 1
2 1
2 1
1 1
1 2
2 1
1 1
1 1
1 1
2 1
1 1
2 1
2 1
1 2
2 2
1 2
1 1
2 1
1 2
1 2
1 1
2 1
2 1
2 1
1 1
1 1
2 1
1 2
2 1
1 1
1 1
2 1
2 2
2 2
2 2
2 1
1 1
1 1
1 1
1 1
2 1
2 1
2 2
2 1
2 2
1 1
1 1
2 2
2 2
1 2
2 2
1 2
2 2
2 2
2 2
2 2
2 2
2 1
1 1
2 2
2 1
2 1
1 1
1 1
1 2
1 1
1 2
1 2
1 1
2 2
1 1
2 1
2 1
2 2
1 2
1 1
1 1
2 1
2 2
1 2
2 1
1 1
2 2
1 2
2 1
1 1
1 1
1 1
2 1
2 2
1 1
2 2
1 2
2 2
1 2
2 2
2 2
2 1
1 2
1 1
1 2
1 1
1 2
1 2
1 2
2 1
2 2
2 1
1 2
1 2
1 1
2 1
2 2
2 2
2 1
2 1
1 2
2 2
2 2
2 1
1 1
2 2
1 2
2 2
1 2
1 1
2 2
2 2
1 1
1 1
1 2
1 2
1 2
2 1
2 2
1 1
1 2
1 2
2 1
2 2
1 2
2 1
1 1
2 2
2 1
1 2
2 2
1 1
1 1
2 1
2 1
1 2
1 1
1 2
2 2
1 2
1 1
2 1
2 2
1 2
2 1
2 2
1 2
1 2
1 2
2 2
2 2
2 2
2 1
2 1
2 1
2 1
2 2
1 2
1 2
1 2
2 1
2 1
2 1
2 1
1 2
1 2
2 2
2 1
2 2
1 2
1 1
1 1
2 2
1 1
2 2
1 1
1 1
2 1
1 2
1 2
2 1
1 2
2 2
1 1
2 1
2 2
1 2
2 2
1 1
2 1
1 2
2 1
1 1
2 1
1 2
2 2
1 1
2 2
1 2
1 1
2 1
1 1
2 1
1 1
2 2
1 1
2 1
1 1
1 2
1 2
1 2
1 2
2 1
1 1
1 1
1 1
2 2
2 1
1 1
1 1
2 2
1 2
2 2
2 1
2 1
2 1
2 1
2 2
1 2
2 1
2 2
2 1
2 1
1 1
2 1
2 2
1 2
2 1
2 2
1 2
2 1
2 2
2 2
1 1
2 1
1 2
2 2
1 2
1 1
1 2
1 1
2 2
2 1
1 1
2 1
2 1
2 2
2 2
1 1
1 1
2 1
1 1
1 2
2 2
1 2
1 1
1 1
2 2
2 2
1 1
1 2
2 2
2 2
1 2
2 1
1 1
2 1
2 1
1 2
1 1
1 2
1 2
1 1
1 1
1 1
2 2
2 1
2 1
1 1
1 2
1 2
2 1
2 1
2 1
1 1
1 1
1 1
1 1
2 1
1 2
1 1
1 1
1 1
1 1
1 1
1 1
1 2
1 2
2 1
2 1
1 2
2 1
1 1
2 1
1 2
1 1
2 1
2 1
1 1
1 2
2 1
2 2
1 2
2 1
1 2
2 1
2 1
1 1
1 2
1 2
2 2
1 1
2 2
1 1
1 1
1 1
2 2
2 2
1 2
2 1
2 1
1 2
2 2
2 1
1 1
2 1
1 1
2 2
2 2
1 1
2 1
1 2
2 1
2 1
2 2
2 1
2 1
1 1
2 1
1 2
1 2
1 1
2 1
2 1
1 2
1 2
1 2
1 1
2 2
1 2
1 1
2 1
2 1
2 2
1 1
1 2
2 1
2 2
2 1
2 1
2 2
2 1
2 2
2 2
2 1
2 2
2 2
2 1
2 1
1 2
1 2
2 2
1 1
1 1
1 1
1 1
2 1
1 2
1 2
2 1
1 2
1 1
1 1
2 2
1 2
2 1
1 2
2 2
1 1
1 1
1 2
1 1
2 2
1 1
1 1
1 2
1 2
2 1
2 1
2 1
2 2
1 2
2 1
2 1
2 1
2 1
2 2
1 2
2 2
1 1
2 2
2 1
1 2
2 2
2 1
2 1
2 1
1 2
2 2
2 2
1 1
1 1
1 1
2 2
1 1
1 2
2 2
2 1
1 2
1 2
2 2
2 1
2 2
2 1
1 1
1 2
1 2
1 1
1 1
1 1
2 1
2 2
2 2
1 1
1 2
1 2
1 1
1 2
2 1
1 1
1 1
2 1
2 2
2 1
2 2
1 1
1 1
1 1
1 2
2 1
2 2
2 2
2 2
1 1
1 1
1 1
2 2
2 1
2 1
1 1
1 1
2 2
2 2
1 1
2 2
2 1
2 1
2 1
2 1
1 1
1 1
1 1
2 1
2 1
1 1
1 2
2 2
2 2
1 1
2 2
2 1
2 2
2 2
1 1
2 1
2 1
2 2
1 1
2 1
1 2
1 2
2 1
1 1
1 1
1 2
2 2
2 2
1 2
2 2
1 1
1 2
2 2
2 1
1 2
2 2
2 2
2 2
2 1
1 1
2 1
2 2
1 2
1 1
2 2
2 1
1 1
1 2
2 2
2 1
1 1
2 1
2 1
1 2
2 2
2 1
2 1
1 1
1 2
2 1
1 1
2 1
1 1
1 2
2 2
1 2
2 2
1 1
1 2
1 2
2 1
2 1
2 1
2 1
1 1
2 1
2 1
2 2
1 2
2 2
2 2
2 1
1 1
2 2
2 2
1 2
1 1
1 1
2 1
2 2
1 1
2 1
1 2
1 1
2 1
1 1
1 1
2 1
2 2
1 1
1 2
1 2
1 2
1 2
1 1
1 2
2 2
2 1
2 1
1 2
1 2
2 1
1 1
2 2
2 1
1 1
1 1
1 1
1 2
2 2
1 1
2 2
2 2
2 2
2 2
2 1
1 1
2 2
1 2
2 2
1 2
2 1
1 1
1 1
2 2
2 1
2 2
2 1
2 2
1 1
1 1
2 2
2 1
2 1
1 2
2 2
1 2
1 1
1 1
1 1
2 1
1 1
1 2
2 1
2 2
1 2
1 1
2 1
2 2
2 1
1 1
2 1
2 2
2 1
2 2
2 2
2 1
1 1
1 1
1 2
2 2
2 2
1 1
2 1
2 2
1 2
2 2
2 1
1 2
1 2
1 2
2 2
2 1
2 2
1 2
2 1
1 1
2 2
1 2
1 2
2 2
2 2
2 2
2 1
2 2
2 2
1 1
2 2
1 1
2 2
1 1
2 2
2 1
2 2
2 1
2 1
2 1
1 2
1 1
1 2
2 1
2 1
1 1
1 2
1 1
2 1
2 2
1 1
2 1
2 1
1 2
1 2
1 2
2 2
1 2
2 1
2 1
2 1
2 1
2 2
2 2
1 2
1 1
1 2
1 2
1 2
1 2
2 2
1 1
1 2
2 1
1 1
1 1
1 1
1 1
2 2
2 1
1 1
1 1
1 2
1 1
1 1
2 2
1 1
1 1
1 2
2 2
1 1
2 1
1 2
2 2
1 1
1 2
1 2
2 2
2 2
1 1
2 1
2 1
2 1
1 2
2 2
2 1
2 2
2 1
1 2
2 1
1 2
1 1
1 2
1 1
2 1
2 2
1 1
1 1
1 2
1 2
2 2
2 2
1 1
1 1
2 2
1 1
1 1
2 2
2 2
1 2
2 2
2 1
1 2
2 1
2 1
2 1
1 2
2 1
2 1
2 2
2 1
1 1
1 2
2 1
2 1
2 2
1 1
1 1
2 1
1 2
1 2
1 2
1 1
1 2
2 1
2 1
1 1
1 2
1 1
1 1
2 1
1 2
2 1
1 1
1 1
1 2
2 2
2 2
1 2
1 1
2 1
2 1
1 1
2 2
1 2
1 2
1 1
1 1
1 1
1 1
2 1
1 1
1 1
1 1
1 2
2 2
2 1
1 2
1 2
2 2
1 1
2 1
1 1
2 2
2 2
1 1
2 2
1 1
2 2
2 1
2 1
1 2
2 1
1 2
1 2
2 1
1 1
1 1
2 1
1 2
1 1
1 1
1 2
2 2
1 2
1 2
1 2
1 1
2 2
2 1
1 1
1 2
2 2
1 1
2 1
2 2
1 1
1 1
1 1
2 2
1 1
1 1
2 1
1 1
1 1
2 2
1 1
2 1
1 1
1 1
2 2
1 1
1 2
1 2
1 1
2 2
1 1
1 2
1 1
2 1
1 2
1 2
2 1
2 1
2 1
2 1
1 1
2 2
1 1
2 1
1 1
1 1
2 1
1 2
1 1
1 1
1 1
2 2
2 2
1 2
1 2
1 1
2 1
1 2
2 2
2 1
1 2
1 1
2 2
2 2
2 1
1 1
2 2
1 1
2 1
1 1
1 2
1 1
2 2
1 2
2 2
2 1
2 2
2 1
2 1
1 2
1 2
1 2
2 1
1 1
1 1
2 2
2 1
1 2
1 2
1 1
2 1
1 1
2 2
1 1
2 2
1 1
1 2
1 2
2 2
1 1
1 2
2 1
1 2
2 2
2 2
1 2
1 1
2 1
2 2
1 2
1 1
1 2
1 1
2 1
1 1
2 1
1 1
1 2
1 2
1 2
2 1
2 2
1 1
2 2
2 1
1 1
2 1
1 2
1 1
2 2
2 1
1 2
1 1
1 2
1 2
1 2
2 2
2 1
1 1
1 1
1 2
1 2
2 1
1 2
1 2
2 2
2 2
1 2
1 1
2 2
1 1
2 1
1 1
1 2
2 2
1 2
1 1
2 2
1 1
2 2
2 2
1 2
2 2
1 2
2 1
1 1
2 2
1 2
1 2
1 2
1 2
1 1
2 2
1 1
2 1
2 1
1 2
2 2
1 1
1 1
2 1
1 1
2 2
1 2
2 2
1 2
2 1
2 1
1 2
1 1
2 1
2 1
1 1
1 2
1 1
2 1
2 1
2 1
1 2
2 1
1 1
2 1
2 1
2 2
2 1
2 1
2 1
2 1
1 1
1 2
1 1
1 2
2 1
1 1
1 2
2 1
1 2
1 1
2 1
2 1
2 2
2 2
1 1
2 2
2 1
2 1
2 2
1 1
1 1
1 2
2 1
2 1
2 2
2 2
1 1
1 2
1 2
2 1
2 1
2 1
2 2
2 2
2 1
2 2
2 1
1 2
1 1
2 1
2 1
2 2
1 2
2 1
2 2
1 2
1 1
1 2
1 1
2 2
2 2
1 2
1 2
1 2
2 2
2 1
2 2
2 2
1 1
2 1
1 1
2 2
1 2
1 2
1 1
1 2
1 2
1 2
1 2
2 1
1 2
1 2
2 1
1 1
2 2
2 2
2 2
2 1
1 1
2 1
1 2
2 2
1 2
2 1
2 1
2 2
1 1
2 2
2 2
1 2
1 1
2 2
2 2
1 2
1 2
1 1
1 1
1 1
2 1
1 1
1 2
1 2
2 2
2 2
2 2
2 1
2 1
1 1
2 2
1 1
2 1
1 2
2 1
1 2
1 1
2 1
2 2
1 1
2 2
1 2
1 1
2 1
1 2
2 2
1 2
2 2
2 2
1 1
2 2
1 2
1 1
2 1
1 2
2 1
1 1
1 2
1 2
2 1
2 1
2 1
2 1
2 1
2 1
1 2
2 2
2 2
1 1
2 2
1 2
2 2
1 1
2 2
2 2
2 2
2 1
1 2
1 1
2 2
2 1
1 1
1 1
2 2
1 1
2 2
2 2
1 1
2 2
1 2
2 2
1 1
2 2
2 1
2 1
1 1
2 2
1 1
2 2
1 2
2 1
2 2
2 2
1 2
2 1
2 1
2 1
2 1
2 2
2 1
2 2
1 1
2 1
1 2
1 1
1 1
1 1
1 2
1 1
2 1
1 2
2 2
2 2
1 2
1 1
2 1
2 2
1 2
1 2
1 1
1 2
2 2
2 2
2 2
1 2
1 1
1 2
1 1
2 2
2 2
2 2
1 1
2 2
2 1
2 2
1 2
1 1
2 2
1 1
1 2
2 1
2 1
2 1
2 2
2 1
2 2
2 2
2 2
2 1
1 2
2 1
2 1
2 2
2 2
2 2
2 2
2 2
2 2
2 2
2 1
2 2
2 1
2 1
1 1
2 1
1 2
1 1
1 1
1 2
1 1
2 2
1 2
1 2
2 1
1 1
2 1
1 1
1 1
2 2
2 2
2 2
2 1
2 2
2 2
1 2
2 1
1 1
1 1
1 2
2 2
1 2
1 1
2 2
2 2
2 2
2 2
2 1
1 2
1 2
1 2
1 2
2 2
2 1
1 1
2 1
2 1
1 2
1 1
2 1
1 1
1 1
2 1
1 1
2 1
2 1
2 1
2 2
2 2
1 1
2 2
1 1
2 2
2 1
1 1
2 2
1 2
2 2
1 2
2 2
1 2
2 1
2 1
2 1
2 1
2 1
2 2
1 2
1 1
1 1
2 1
2 2
2 2
2 2
1 2
1 1
2 1
1 1
2 2
2 2
2 1
1 2
1 1
1 2
1 2
1 1
2 2
1 1
1 2
2 2
2 2
1 1
2 1
2 2
1 2
1 2
1 2
2 1
2 2
1 2
1 1
2 2
1 1
1 1
1 1
2 1
2 1
1 2
1 1
1 2
2 2
2 1
2 2
1 2
1 2
2 2
1 1
2 1
1 2
2 2
1 2
2 1
2 1
1 2
1 2
1 1
1 2
2 2
1 1
1 1
2 2
2 1
2 1
1 2
1 1
1 1
1 1
1 1
2 1
2 1
2 2
1 1
1 1
2 1
1 2
2 2
1 2
2 1
1 2
1 2
1 1
1 1
2 2
2 1
2 2
2 1
1 2
2 2
1 1
1 1
2 1
1 1
2 2
1 1
2 1
1 1
1 2
1 2
1 1
2 2
1 1
2 2
1 2
1 1
1 1
2 2
2 1
1 1
1 1
1 1
2 1
1 2
2 2
1 2
2 1
2 1
1 1
1 1
1 1
1 2
1 2
2 2
2 1
1 1
2 2
1 1
1 2
2 1
1 1
1 1
2 1
1 1
1 1
1 1
1 2
1 1
2 1
1 1
1 2
1 2
2 2
2 1
2 1
1 2
2 1
2 1
2 1
1 1
2 1
1 2
1 1
1 2
2 2
2 2
2 1
1 1
1 2
1 2
1 1
2 1
2 2
1 1
2 2
2 1
1 2
1 1
2 1
1 2
1 2
1 1
2 2
1 1
1 1
2 2
2 2
1 1
1 2
2 2
2 2
2 1
1 2
2 2
2 1
2 2
1 1
1 2
1 1
2 1
1 2
2 1
1 1
2 1
1 1
1 1
2 1
2 1
2 1
2 1
2 1
2 1
2 1
2 1
1 1
1 2
1 2
1 2
1 1
2 2
1 1
2 2
1 2
1 2
1 1
2 2
1 1
2 1
1 2
1 2
2 2
1 1
2 2
1 2
2 1
2 2
2 2
2 1
1 2
2 2
1 2
1 1
1 2
1 2
2 2
2 2
1 2
1 2
2 2
1 2
1 1
1 2
2 1
1 2
1 2
1 2
1 2
1 2
1 2
2 2
2 2
2 1
2 1
1 1
2 1
1 1
2 1
2 2
2 1
2 2
2 1
2 1
1 2
1 1
2 2
1 1
1 2
2 2
1 2
2 1
1 2
2 2
1 1
1 2
1 2
1 2
2 2
2 1
2 2
1 1
1 2
1 2
2 1
2 2
2 1
2 2
1 1
1 2
1 2
2 1
2 1
2 2
1 1
2 2
1 1
1 2
1 2
2 1
2 1
2 1
1 2
1 1
2 2
1 2
2 1
2 1
2 1
1 1
1 2
1 2
1 1
1 1
2 1
2 2
2 1
1 1
2 2
2 2
2 1
1 1
2 2
1 1
2 1
1 1
2 1
2 1
2 1
1 1
2 2
1 2
2 1
2 2
1 2
2 1
2 1
1 2
1 1
2 2
2 1
2 1
1 2
1 2
2 1
1 1
1 2
1 2
2 2
1 2
1 1
1 1
2 1
1 2
2 1
2 1
2 2
1 2
1 1
2 2
2 2
2 2
1 1
2 1
2 2
1 2
1 2
1 2
1 2
2 2
2 2
2 1
2 1
1 2
2 1
1 2
2 2
1 2
2 2
1 2
1 2
1 1
2 1
1 1
2 2
2 2
2 2
1 1
1 2
1 1
1 1
1 1
1 1
1 2
2 2
1 1
1 2
2 1
2 1
1 1
2 1
1 1
2 1
1 2
2 2
2 1
2 2
1 1
1 1
2 2
2 1
2 2
1 1
2 2
1 1
1 1
1 1
2 1
1 2
1 2
2 1
1 1
1 2
2 1
2 1
1 1
1 2
1 2
2 1
2 1
1 1
1 1
2 2
2 1
2 2
1 2
2 1
2 2
1 1
2 1
1 1
1 1
2 2
2 2
1 1
1 2
2 2
2 2
1 1
2 2
1 2
1 2
2 2
2 2
2 1
2 2
1 1
1 2
1 2
1 1
2 1
1 1
2 1
2 2
1 2
2 1
2 1
1 2
2 1
1 2
1 1
2 1
1 1
1 2
2 2
2 1
1 2
1 1
2 2
1 2
2 2
2 1
1 2
1 1
2 2
2 1
1 2
1 2
1 2
1 1
1 1
2 1
2 1
1 1
2 1
2 2
2 2
2 1
1 1
2 2
2 2
2 1
1 2
2 2
1 2
2 2
1 2
1 2
2 1
2 2
2 1
2 2
2 1
2 2
2 1
1 1
2 2
2 2
1 1
2 1
1 1
2 1
1 2
2 1
1 1
1 2
2 1
1 2
1 1
1 2
2 1
2 1
1 2
2 2
1 2
2 1
1 2
2 1
1 1
2 1
1 2
2 2
2 1
1 1
1 2
2 2
2 2
1 2
1 1
2 1
2 2
2 2
1 2
2 2
2 2
1 1
1 1
1 2
1 2
2 2
2 1
2 1
1 2
1 2
2 1
1 1
1 1
2 1
1 1
2 1
1 1
1 1
2 2
1 1
1 2
2 2
1 2
2 2
1 1
1 1
2 2
1 2
1 2
2 2
1 1
2 2
2 2
1 1
2 1
2 2
2 2
2 2
1 2
1 2
1 1
1 2
2 2
1 1
2 1
1 2
2 1
2 1
2 2
2 1
1 2
2 2
2 2
2 2
2 1
2 2
1 1
1 2
2 2
2 2
1 1
1 1
2 1
2 2
2 1
2 2
2 2
1 2
1 2
2 1
1 2
2 2
2 2
2 1
1 2
1 2
2 2
2 1
1 1
1 1
1 1
2 2
1 1
1 2
2 1
1 2
1 1
1 2
1 1
1 1
2 2
2 2
1 2
1 2
2 2
1 2
2 1
1 2
2 1
2 1
1 2
1 2
2 2
2 1
1 1
2 1
1 2
1 2
1 1
1 1
2 1
2 1
2 1
1 2
1 2
1 2
2 2
2 2
2 2
1 1
2 2
2 1
1 1
1 2
1 1
1 2
1 1
1 2
1 2
2 1
1 1
1 1
2 1
2 2
1 1
2 1
2 2
2 1
2 1
2 1
2 2
2 1
1 1
1 2
2 1
1 1
1 2
1 2
2 2
2 2
2 1
2 1
1 1
1 2
2 1
2 1
2 2
1 1
2 2
1 1
2 2
1 2
1 2
2 2
2 2
1 1
1 2
2 1
1 2
2 1
1 2
2 2
1 2
2 2
2 1
2 1
1 2
2 1
2 2
2 2
1 2
1 1
2 1
1 1
1 2
1 1
1 1
1 1
1 2
1 2
1 1
1 2
1 2
2 2
2 1
2 1
1 1
1 2
2 1
1 2
1 2
1 1
1 2
1 1
1 2
2 1
1 2
2 1
2 2
2 2
1 1
2 1
1 1
2 2
1 1
2 2
2 2
1 2
2 2
1 1
2 1
1 1
2 1
2 1
2 1
2 2
1 2
2 1
1 1
1 1
2 1
1 2
1 2
1 2
1 2
2 1
2 1
2 2
2 2
2 1
2 1
2 1
2 1
2 2
1 1
1 1
1 1
2 2
1 1
1 2
2 1
2 2
2 2
2 1
2 2
1 1
1 2
1 1
1 2
2 1
2 1
1 2
2 1
1 1
1 1
1 1
1 1
1 2
1 2
1 1
2 1
2 2
1 2
1 1
1 1
2 1
2 1
2 1
1 2
2 1
1 2
1 2
2 2
1 1
2 1
1 2
2 2
1 1
1 2
2 1
1 2
2 1
1 2
1 1
2 1
2 2
2 2
1 1
1 1
1 2
1 1
1 1
2 2
2 2
1 2
1 1
1 2
1 1
1 1
1 1
2 1
2 1
1 1
1 1
2 2
2 2
1 1
2 1
2 1
2 1
2 2
2 2
1 2
1 2
2 2
2 1
2 1
1 1
2 2
2 2
2 2
2 1
2 1
2 1
2 1
2 2
1 1
1 2
2 1
1 2
1 2
2 1
1 2
1 2
1 1
2 2
1 2
1 1
1 1
1 2
1 1
1 2
2 2
2 1
1 2
1 1
1 1
1 1
1 1
1 1
2 1
1 2
1 1
1 2
2 1
1 1
2 2
1 1
1 2
1 2
1 1
2 1
1 1
1 1
1 1
1 1
2 2
2 2
1 1
2 1
2 1
1 2
1 2
1 1
1 1
1 2
2 2
1 1
1 2
2 1
1 1
2 1
1 1
2 1
1 1
2 2
1 2
1 2
1 2
1 1
1 1
2 1
2 2
2 1
1 1
2 2
1 1
1 1
2 1
2 2
1 2
2 2
2 1
1 1
2 2
2 2
2 1
1 1
2 1
1 1
2 1
1 2
2 2
2 1
2 1
1 2
1 1
2 1
2 2
1 1
1 2
1 1
2 2
1 1
1 1
1 1
2 1
1 2
2 1
1 2
1 2
1 2
1 2
2 2
2 2
1 1
1 2
2 1
1 1
1 2
1 2
1 1
1 2
1 2
2 2
1 1
1 2
2 1
2 1
1 1
2 1
1 2
2 1
2 2
2 2
1 2
2 1
2 2
1 1
1 1
1 2
2 2
1 2
2 1
2 1
1 2
2 1
1 2
2 1
2 2
1 1
2 2
1 1
1 1
2 2
2 2
1 2
2 2
2 2
1 2
2 2
1 1
2 1
2 2
1 1
2 2
1 1
1 1
2 1
1 2
1 1
1 1
1 1
2 1
1 1
2 2
1 1
2 2
2 2
1 2
2 2
1 2
2 2
1 2
2 2
1 1
1 2
2 1
2 1
1 1
2 2
2 1
1 2
2 2
1 2
2 1
1 1
1 2
1 1
2 2
2 1
1 1
1 1
2 1
1 2
2 1
1 1
1 2
1 2
1 2
2 2
2 2
2 1
2 2
2 2
1 2
1 1
2 1
1 1
2 1
2 2
2 2
2 1
1 1
1 1
1 2
1 1
2 1
2 2
1 1
1 1
1 2
2 1
2 1
2 2
1 2
2 2
1 2
2 2
2 2
1 1
1 1
2 2
1 1
2 2
1 2
1 2
2 1
1 2
1 1
1 2
1 1
1 2
1 1
2 1
1 2
1 2
2 2
1 2
2 1
2 1
2 2
2 2
2 2
2 1
2 2
1 1
1 1
2 2
1 2
2 1
2 2
1 2
1 2
2 1
1 1
1 2
1 1
2 1
1 2
2 1
1 2
1 2
1 1
2 2
1 2
2 2
1 1
2 1
2 1
1 2
1 2
1 2
2 2
1 1
1 2
1 1
1 2
1 1
2 1
2 1
2 1
2 1
1 2
2 1
2 1
1 1
1 2
2 1
1 1
1 1
2 1
1 1
2 2
2 2
2 2
2 2
2 1
2 2
2 2
1 2
2 2
2 2
2 1
2 1
2 1
1 1
2 1
2 2
1 1
1 2
2 1
2 2
2 1
2 1
1 1
1 2
2 1
2 1
2 1
1 1
1 1
1 2
1 2
2 1
2 1
1 1
2 2
2 1
1 2
2 2
1 2
1 2
1 2
1 1
2 1
2 2
2 1
2 1
1 2
1 2
2 2
2 2
1 2
2 1
2 1
1 2
1 1
1 2
1 2
1 1
2 1
1 2
2 2
2 1
1 2
2 1
1 1
1 1
1 1
2 2
1 2
1 1
1 1
2 2
2 2
2 1
1 2
2 2
2 2
2 2
1 2
2 1
1 2
2 2
2 2
2 1
2 1
1 1
2 1
2 1
1 2
2 1
1 1
1 1
1 1
1 2
2 2
2 1
1 2
2 2
2 2
2 2
1 1
2 1
1 1
2 1
1 2
2 2
2 1
2 1
1 2
2 1
1 1
1 1
2 2
2 2
1 1
1 1
1 1
2 1
1 1
1 1
1 1
1 1
2 1
1 2
2 2
2 2
1 2
1 1
2 1
2 2
1 2
2 2
1 2
1 2
1 1
2 1
2 2
2 1
2 1
1 2
2 2
1 1
1 2
2 2
2 2
2 2
1 2
1 2
2 2
2 2
1 2
1 1
2 2
1 2
2 2
1 1
1 1
1 1
1 2
1 2
1 1
2 2
1 2
1 1
1 2
2 2
2 1
1 2
2 1
1 2
1 1
2 1
1 1
2 2
2 1
1 1
1 2
1 2
1 2
1 2
1 1
2 1
1 2
2 1
1 1
2 2
1 1
1 1
1 1
1 1
2 1
2 1
2 2
1 2
1 1
2 1
1 2
2 2
1 1
1 2
1 2
1 2
2 2
1 2
1 2
2 2
2 2
2 1
1 1
2 2
1 2
1 1
2 2
2 1
1 2
1 1
1 1
2 2
1 2
1 1
1 2
2 2
2 2
1 1
1 2
1 1
2 2
2 2
1 1
2 2
2 1
1 2
2 1
1 1
1 1
1 2
1 1
2 2
2 2
2 1
2 1
2 1
2 1
2 1
1 2
1 1
2 1
1 1
2 2
2 1
1 1
1 1
1 2
2 1
2 2
2 1
2 1
2 2
1 2
2 2
2 1
2 1
2 1
2 1
1 1
1 2
1 1
2 1
1 2
2 2
2 2
1 1
2 2
2 2
2 1
2 1
1 1
1 1
2 1
2 2
2 2
1 1
1 2
1 2
2 2
1 2
1 1
2 2
1 2
2 2
2 2
1 1
2 2
2 2
1 2
2 2
1 2
2 2
1 1
1 1
2 1
2 1
2 2
1 2
1 1
2 1
2 1
1 2
1 1
1 1
1 2
2 2
1 2
1 2
2 2
1 1
1 1
2 2
1 1
1 1
2 2
1 2
2 2
2 2
1 2
2 2
1 2
1 1
1 2
2 2
2 1
2 2
1 2
1 2
1 1
1 2
2 1
1 2
1 2
2 1
1 1
1 1
2 2
1 1
1 1
1 1
2 1
1 1
2 2
2 1
1 1
2 2
1 1
2 2
2 1
2 2
1 1
1 1
1 2
2 2
2 1
2 1
2 2
2 2
1 2
1 1
2 1
1 1
2 2
1 1
2 1
1 1
1 2
2 1
1 1
1 1
1 2
1 2
1 2
1 2
2 1
1 1
1 1
1 2
1 1
2 2
1 1
1 2
2 2
1 1
1 2
1 2
2 1
1 1
1 2
2 2
1 1
2 2
1 2
2 2
1 1
1 1
1 2
1 2
1 1
1 1
2 2
2 2
2 1
1 1
1 2
2 2
2 2
2 1
1 1
2 1
1 1
1 2
2 2
1 2
2 1
1 1
1 2
2 1
2 2
2 2
1 1
1 1
2 2
1 2
1 2
1 2
2 2
2 2
1 2
2 2
1 1
1 1
2 2
2 1
1 2
2 2
1 1
1 2
1 2
1 1
2 2
2 1
2 1
2 2
1 1
2 2
2 1
2 1
1 2
1 2
2 1
2 1
1 2
2 2
2 2
2 2
1 2
2 1
2 2
1 1
1 1
2 1
1 2
1 2
2 2
1 1
2 1
2 2
1 2
2 1
2 1
1 2
1 2
2 1
2 1
2 2
1 1
1 2
2 1
1 1
1 1
2 1
1 2
2 2
2 1
2 2
2 1
1 1
1 2
1 2
2 1
2 1
2 2
1 1
2 1
1 2
1 1
1 2
2 2
1 1
2 2
1 2
2 1
2 2
1 1
1 1
2 1
2 1
2 1
1 1
1 2
1 2
1 2
2 1
1 2
1 1
2 1
2 1
2 2
1 2
2 2
1 1
2 2
1 1
2 1
1 2
2 1
1 1
1 1
2 2
1 1
1 2
1 1
1 1
2 1
1 1
1 2
1 1
2 2
1 1
1 1
2 1
2 2
1 1
2 1
2 2
2 2
2 1
1 2
2 2
1 2
1 1
2 2
1 1
1 1
2 1
2 1
2 2
1 1
2 1
2 1
2 2
2 2
1 1
1 1
2 2
2 2
1 2
1 1
2 2
2 2
2 2
2 1
2 2
2 2
2 2
2 1
2 1
2 2
1 1
2 2
1 2
1 2
2 2
1 1
2 1
1 1
2 2
2 2
1 1
1 2
2 1
2 1
2 2
2 1
1 1
2 1
1 1
1 2
2 1
1 2
2 2
1 1
1 2
1 1
1 2
2 2
1 2
2 2
2 2
2 1
2 2
2 2
1 1
2 2
2 1
2 1
2 1
1 1
1 2
2 2
2 1
1 1
2 1
1 2
2 1
1 1
2 2
1 1
1 1
1 1
2 1
2 1
1 2
1 2
2 1
2 1
2 2
1 2
2 1
2 1
2 2
2 2
2 2
1 2
2 1
1 1
1 1
2 1
2 1
1 1
2 2
2 2
2 2
2 1
1 1
2 1
2 1
2 1
2 2
2 1
2 1
2 2
2 1
1 2
1 1
1 2
1 1
2 1
2 2
1 2
2 2
2 2
1 2
2 2
1 1
1 1
1 1
1 1
1 2
2 2
2 1
2 1
2 2
1 1
2 2
2 1
1 1
2 1
1 1
2 1
1 2
2 1
2 2
2 2
1 1
1 1
2 2
2 1
1 2
2 1
2 1
1 1
1 1
2 2
1 2
1 1
2 1
1 2
1 2
2 2
1 2
1 2
1 1
1 2
1 2
2 2
1 2
2 2
1 2
1 1
2 2
2 1
2 2
1 2
1 2
1 1
1 1
2 2
2 1
2 1
2 2
2 1
1 2
2 1
2 1
2 2
2 1
2 2
1 1
2 1
2 1
2 2
2 1
1 2
2 1
1 2
1 1
2 1
2 2
1 2
1 2
2 1
2 2
1 2
1 1
2 2
1 1
2 2
2 2
1 1
1 2
1 2
1 2
1 1
1 1
2 1
1 1
1 1
2 2
1 1
2 1
1 2
1 1
1 2
2 2
1 1
2 1
1 1
1 2
1 2
1 2
1 1
1 1
2 1
1 1
2 2
1 2
1 2
2 1
1 2
1 1
1 1
2 2
1 2
1 1
1 2
1 2
2 2
2 1
2 2
2 1
2 1
2 1
2 2
2 1
2 1
1 1
2 2
1 1
1 1
1 2
1 1
2 1
2 1
2 1
2 2
2 2
2 1
2 2
2 2
1 2
1 1
2 1
2 2
1 1
1 2
1 1
1 1
2 2
1 2
1 2
1 1
2 1
1 2
1 2
2 1
2 2
2 1
1 2
2 2
2 1
1 2
2 2
2 2
2 1
2 2
1 1
2 1
1 1
2 1
2 2
1 2
2 1
1 1
2 2
1 2
2 1
1 2
2 1
1 1
2 2
1 2
2 1
2 1
1 1
1 1
1 1
1 2
2 1
2 1
1 2
2 2
1 1
1 2
2 2
1 1
2 1
1 1
1 2
1 2
1 1
1 2
2 2
2 1
1 1
2 2
2 1
1 2
1 2
2 2
1 1
2 1
1 1
1 2
2 1
1 1
1 1
2 1
2 1
1 2
2 1
1 1
1 2
1 1
2 2
2 2
1 2
2 1
2 1
1 1
1 1
2 1
1 2
1 1
1 1
1 2
1 2
1 2
1 2
2 1
2 2
1 2
1 2
1 1
2 2
2 2
2 2
1 1
1 1
2 1
2 1
2 2
1 1
1 1
1 1
2 2
2 1
2 1
1 1
1 1
1 2
1 1
1 1
1 2
2 2
2 2
2 2
1 1
2 2
2 2
1 2
2 2
2 1
1 2
2 2
1 2
1 2
2 2
2 2
2 1
1 2
1 2
2 2
2 1
2 2
1 2
2 2
1 1
2 2
1 1
2 1
1 2
1 2
1 2
2 2
2 1
2 1
1 2
1 1
2 2
2 1
2 2
2 2
1 2
1 1
2 1
2 1
2 1
1 1
2 2
1 1
2 1
2 1
2 1
1 1
1 2
1 2
1 1
1 2
2 1
2 2
1 2
2 1
1 1
1 1
1 1
1 2
1 2
1 1
1 2
1 2
1 2
1 1
1 2
2 1
1 1
1 2
2 1
1 2
2 2
2 2
2 2
2 1
2 2
2 1
1 2
2 1
2 2
2 1
1 1
1 1
1 1
1 1
1 2
2 1
1 1
1 2
1 2
2 2
1 2
1 1
1 2
2 2
2 2
2 2
2 2
2 2
1 2
2 2
2 1
2 1
2 2
2 1
1 2
1 2
2 1
1 1
2 1
1 2
2 2
1 2
1 2
1 2
2 2
1 2
2 1
1 2
2 1
2 2
2 2
1 1
1 2
1 1
1 2
2 1
1 2
1 2
2 1
1 1
1 1
2 2
2 1
1 1
2 1
1 2
2 2
2 1
1 2
2 1
2 2
2 1
2 1
2 1
2 1
1 1
2 1
1 2
1 1
1 1
2 1
2 1
1 1
1 2
2 2
2 1
1 2
2 1
2 1
2 1
2 1
1 1
1 1
1 1
1 2
1 2
1 2
2 2
1 2
1 1
1 2
1 1
2 1
1 1
2 1
1 1
2 2
2 1
1 2
1 2
1 1
1 2
2 1
1 2
2 1
2 1
2 1
1 2
2 1
1 1
1 1
2 1
2 2
1 1
2 2
2 1
2 2
1 1
2 1
1 2
2 1
2 1
1 1
1 1
2 1
1 2
2 1
2 2
1 1
2 1
1 2
2 1
2 1
2 2
2 1
1 2
2 2
2 1
2 2
1 2
1 2
1 1
1 1
1 2
2 2
2 2
1 2
2 1
2 1
1 2
2 1
1 2
1 1
2 2
2 2
1 1
1 1
1 2
1 2
2 1
1 2
2 1
1 2
1 2
2 1
1 2
1 1
1 1
2 2
2 2
2 2
1 2
1 2
1 1
1 1
2 1
1 2
1 1
2 2
1 2
1 1
1 1
1 1
2 2
1 1
1 2
1 2
2 2
2 2
1 1
1 1
1 1
1 2
1 2
1 2
2 1
1 1
1 2
1 2
1 1
1 1
1 2
1 1
2 2
1 1
2 1
2 1
1 2
2 2
1 2
1 1
2 1
1 2
2 1
2 2
2 2
1 1
2 1
1 1
1 1
2 2
1 1
1 1
1 1
2 1
1 1
1 1
1 1
1 2
2 2
2 1
2 2
2 2
1 1
1 1
2 2
2 1
1 2
1 1
2 1
2 1
1 2
1 1
2 1
2 1
1 2
1 2
1 2
1 2
2 2
1 2
2 2
2 2
1 2
2 1
2 2
1 1
2 1
2 2
2 1
1 2
2 2
1 2
2 2
1 2
2 2
1 1
2 2
1 2
1 1
2 2
1 1
2 1
1 1
1 1
2 2
2 1
1 2
2 2
2 1
1 2
2 1
2 1
1 1
2 2
1 1
1 2
2 2
1 1
2 2
1 1
1 1
1 1
2 2
2 1
1 1
1 2
2 1
1 2
1 1
2 1
2 2
2 2
1 1
2 1
2 1
1 2
1 1
2 1
1 1
1 1
2 1
2 1
1 2
2 1
2 1
1 1
2 1
2 2
1 1
1 1
2 1
1 2
2 1
1 1
2 2
2 2
2 1
2 1
2 2
1 2
2 1
1 2
2 2
2 1
1 1
2 1
1 2
1 1
1 2
1 1
1 2
1 1
1 2
2 1
2 1
2 1
2 1
2 2
2 1
1 2
1 2
1 2
1 2
2 2
2 1
1 1
2 2
1 1
1 1
2 2
1 2
2 2
2 2
2 2
1 2
1 2
1 1
2 2
2 2
1 2
1 1
1 1
2 2
2 1
1 1
1 2
2 1
1 2
2 1
1 1
1 1
1 1
1 2
1 1
1 2
2 1
1 1
1 2
1 2
2 2
1 2
1 2
2 2
2 2
2 1
1 1
1 1
2 1
1 2
1 2
2 1
2 1
1 1
2 2
2 1
2 2
2 1
1 2
1 1
2 2
1 1
1 1
2 1
1 2
2 2
2 1
1 1
2 2
2 1
2 2
1 1
2 1
2 1
2 1
2 2
1 1
1 1
1 2
1 2
1 2
1 2
2 1
2 2
2 1
1 2
1 1
2 1
1 1
2 2
2 2
2 2
1 1
1 1
1 1
2 2
2 2
1 1
2 2
2 2
1 1
2 2
2 2
1 1
2 1
2 2
1 2
2 2
2 2
1 1
1 1
2 2
2 2
2 2
2 2
2 2
1 2
2 1
1 2
2 1
2 2
1 2
1 1
1 1
2 1
2 2
1 2
2 2
2 1
1 2
1 1
1 1
2 1
2 2
2 1
2 2
1 1
1 2
2 2
2 2
1 1
1 2
1 2
2 2
2 2
1 2
1 2
2 1
1 1
2 2
1 1
1 2
1 1
2 1
2 2
1 2
2 2
2 2
2 1
1 1
2 1
1 2
2 1
2 2
1 2
2 2
2 2
1 1
1 2
1 1
1 2
1 1
1 1
2 1
1 1
1 2
2 2
1 1
1 2
2 1
1 1
1 2
1 1
1 1
1 2
1 2
2 2
1 1
2 2
2 2
2 1
1 2
1 1
1 2
2 2
1 2
2 2
2 1
1 1
1 1
2 1
1 2
2 2
2 1
2 1
2 2
1 2
1 1
1 1
2 2
2 1
2 1
2 1
1 2
2 2
2 2
1 2
2 2
1 2
2 2
1 2
2 2
1 2
1 2
1 2
1 2
2 2
1 1
2 1
1 1
1 2
1 2
1 2
1 1
1 2
1 1
2 1
2 2
2 1
2 2
1 2
2 1
2 1
1 2
1 1
1 2
1 2
2 1
2 1
1 2
1 2
2 1
1 1
1 2
1 1
1 2
1 1
2 1
1 1
2 1
1 2
2 2
1 2
2 1
2 2
1 1
2 1
2 2
1 2
1 2
2 1
1 2
1 1
2 1
1 1
2 1
2 2
2 2
2 1
2 1
1 1
1 2
1 2
2 1
1 1
1 1
1 1
1 2
1 2
2 2
2 2
2 2
1 2
2 2
1 2
1 1
2 1
2 2
2 1
1 1
2 2
2 2
1 1
2 1
2 2
2 1
2 1
1 2
1 1
1 1
1 2
2 1
1 2
1 1
2 2
1 1
2 2
2 2
2 2
1 1
1 1
1 1
2 2
2 1
1 1
2 2
2 1
2 1
2 1
1 1
1 1
2 2
2 1
2 1
2 2
2 1
1 1
1 2
1 1
1 2
2 1
1 2
2 1
1 2
1 2
2 1
1 1
1 2
1 1
1 1
2 1
2 1
1 1
1 2
1 2
1 1
1 2
2 2
1 2
2 1
1 2
1 2
1 2
1 1
1 1
2 1
1 2
1 1
2 1
2 1
1 1
1 1
1 1
1 2
1 2
1 1
1 1
2 1
2 2
1 2
2 1
1 2
2 1
2 2
1 1
1 1
1 2
2 1
2 1
1 1
1 1
1 2
1 1
2 2
2 1
1 1
1 1
1 2
2 2
1 2
2 1
1 1
1 2
1 2
2 1
1 1
1 2
1 2
1 1
1 1
1 1
2 1
1 2
1 1
1 1
1 2
2 1
2 2
1 1
2 2
2 1
1 1
1 2
2 2
1 1
2 2
2 2
1 1
2 1
1 1
1 1
2 1
1 2
1 2
2 2
1 1
2 1
2 2
1 1
2 1
2 1
1 2
1 2
2 2
2 2
2 1
1 2
1 2
2 2
2 2
2 1
1 2
1 1
1 2
1 2
1 2
1 1
2 1
2 1
1 2
1 2
1 1
1 2
2 1
1 2
1 2
1 1
2 1
1 2
1 1
1 2
2 1
2 2
1 1
1 1
2 1
2 2
1 2
1 1
1 2
1 1
1 1
1 1
1 2
1 1
1 1
1 2
2 2
2 1
2 2
2 1
2 2
2 2
2 1
2 2
2 1
2 1
2 1
2 1
1 2
1 1
2 1
1 2
1 2
1 2
1 1
1 2
2 1
2 2
2 2
1 2
2 2
1 2
2 2
2 2
2 1
1 2
1 1
1 1
2 1
2 1
1 2
1 1
2 1
1 1
2 2
2 1
1 2
2 1
1 1
2 2
2 1
2 2
1 2
1 1
1 1
2 1
2 2
2 2
2 1
1 2
2 1
2 1
2 2
2 2
2 2
1 1
2 1
1 2
2 1
1 1
1 1
2 1
1 1
2 1
2 2
1 1
1 1
1 1
2 2
2 2
2 2
2 1
1 2
2 2
2 1
1 2
2 1
1 2
2 2
1 1
1 2
1 1
1 1
1 1
2 2
1 2
2 2
2 2
1 1
1 1
1 1
1 1
1 2
1 1
2 2
1 1
1 1
2 2
2 1
2 1
2 1
2 2
2 1
2 2
2 1
1 1
2 2
2 2
2 2
1 2
1 2
2 1
1 1
2 2
2 1
1 2
1 1
2 2
1 1
1 1
1 1
1 2
2 2
1 1
2 1
1 2
1 1
2 1
2 1
2 1
2 1
2 1
1 2
1 2
1 1
2 1
2 2
1 1
2 1
1 1
2 1
2 2
1 2
1 1
1 1
1 2
2 2
2 2
2 1
2 1
2 1
2 1
2 2
1 1
2 2
1 2
1 1
2 2
2 1
2 2
2 1
1 2
2 2
1 2
1 2
2 2
1 1
1 1
1 2
1 2
1 2
2 1
2 2
2 2
2 1
2 1
1 2
1 1
2 1
2 2
2 2
2 2
2 2
1 1
1 2
2 2
1 2
2 1
1 1
2 2
1 2
1 1
2 2
2 1
2 1
2 1
1 1
2 1
1 2
2 1
2 2
2 2
1 2
2 2
1 1
2 1
1 2
2 2
1 2
2 1
1 1
1 2
2 2
2 2
1 2
1 2
1 1
2 1
2 1
1 2
2 2
1 1
2 1
2 1
2 1
1 2
1 1
2 1
2 1
1 2
2 1
1 2
2 1
2 2
1 2
1 2
1 2
1 1
1 1
1 2
2 2
2 2
1 1
2 1
1 1
2 2
2 2
2 1
1 1
2 2
2 2
2 2
2 2
1 2
1 2
1 2
1 1
1 1
1 1
1 1
1 2
2 2
1 1
1 1
2 1
2 1
2 2
2 2
2 2
2 2
1 1
2 2
2 2
1 2
1 2
1 1
1 1
1 2
2 2
2 1
2 2
2 1
2 1
2 1
2 2
2 1
1 2
1 1
1 1
1 2
1 1
2 2
2 1
1 1
1 2
2 2
2 1
2 1
1 2
1 2
1 1
2 2
1 2
1 2
2 1
1 1
2 2
1 2
2 2
1 1
2 2
1 1
1 2
1 2
2 2
2 2
1 2
1 2
1 1
2 2
1 2
2 2
2 2
1 2
1 2
1 1
2 1
1 2
2 2
1 2
2 1
2 2
2 1
1 2
2 1
1 2
1 1
2 1
1 1
1 1
2 2
1 1
2 1
1 1
1 1
1 2
1 1
1 2
1 2
2 2
1 1
2 2
2 2
1 1
2 1
2 1
2 1
1 2
2 2
1 1
1 1
1 2
1 2
1 2
2 1
2 2
2 1
2 1
2 2
2 2
1 1
1 1
1 2
1 1
2 2
1 1
2 2
2 2
1 2
1 2
1 1
2 1
1 1
1 1
2 2
2 1
1 2
1 2
1 1
2 2
1 1
1 1
2 2
1 2
2 2
1 1
1 2
2 2
2 1
1 1
1 1
1 2
1 2
2 2
2 2
2 2
1 2
1 1
1 2
2 2
2 1
1 2
2 1
2 2
2 2
1 1
2 1
2 1
1 2
2 2
1 1
1 1
2 1
2 2
2 2
1 1
1 1
2 1
1 2
2 1
2 2
2 1
1 2
2 1
1 1
2 2
2 1
2 1
1 2
1 2
1 1
2 2
2 2
2 2
1 2
2 2
1 2
2 2
2 2
1 1
1 2
2 1
2 2
2 2
1 2
2 2
1 2
1 2
2 1
2 1
1 1
1 1
1 1
1 2
1 2
1 1
2 2
2 1
1 1
1 2
2 2
2 1
2 1
1 2
2 1
2 2
2 2
2 1
1 1
1 2
2 2
2 1
2 2
1 1
2 2
2 1
1 1
1 1
1 1
2 2
1 2
2 2
2 2
2 1
2 1
1 2
2 2
1 1
2 2
1 2
1 1
1 1
2 1
2 1
1 1
1 1
1 1
2 1
1 1
1 1
1 1
1 2
1 1
2 2
1 2
2 1
1 2
2 2
1 1
1 2
1 2
1 1
2 1
1 1
1 2
1 1
2 2
2 2
2 2
1 2
1 2
1 1
1 1
1 2
1 2
1 2
1 1
1 2
1 1
2 1
2 1
2 1
1 1
2 1
2 2
2 2
1 1
2 1
2 1
2 1
1 2
1 1
2 1
1 1
2 1
2 1
1 2
1 2
1 2
2 1
2 2
1 2
2 1
1 2
2 2
1 2
1 1
1 1
1 1
1 1
2 1
2 1
1 1
2 2
2 2
2 1
2 1
2 1
1 1
1 1
1 2
2 1
1 1
2 2
1 1
2 2
1 1
1 2
1 2
2 2
2 1
1 1
2 1
1 1
1 2
1 2
2 1
2 1
1 1
2 1
1 1
2 1
2 2
2 2
1 2
2 2
2 1
2 1
2 1
2 1
1 2
2 1
1 2
2 1
2 1
1 2
2 2
2 2
2 1
1 2
2 2
2 2
1 1
2 2
1 2
2 1
1 1
2 2
1 1
2 2
2 1
1 1
2 1
1 2
2 1
1 1
2 2
1 1
2 2
1 2
1 2
2 1
1 2
2 1
1 1
1 1
1 1
1 2
2 2
2 1
1 2
1 1
1 2
2 2
1 1
2 1
2 2
1 2
2 2
2 2
1 1
1 1
1 1
1 1
1 2
2 2
1 2
1 1
1 1
2 1
2 2
2 2
1 2
1 1
1 1
2 2
2 2
1 1
1 2
2 1
2 1
1 1
1 2
2 2
1 1
2 1
2 1
1 2
1 1
1 1
1 2
1 2
2 2
2 2
2 1
2 2
1 1
2 2
1 1
2 2
1 2
1 1
2 1
2 1
2 2
2 2
2 1
2 1
1 1
1 2
1 2
1 1
1 1
2 1
2 2
2 1
2 2
1 1
1 2
2 2
2 2
2 2
2 1
1 1
1 2
2 1
1 1
2 1
1 2
1 1
1 2
1 1
2 1
1 2
2 2
1 2
1 2
1 2
1 2
2 2
1 1
1 1
2 1
2 1
1 1
2 2
1 2
1 1
2 1
1 1
1 1
2 2
1 1
2 1
1 1
2 2
1 1
2 2
2 2
1 2
1 2
2 1
2 2
2 2
2 2
2 2
2 2
2 1
2 1
1 2
2 2
2 2
2 1
1 2
2 1
1 1
1 2
1 2
1 1
2 2
1 1
2 2
2 2
1 2
1 1
2 1
2 1
1 2
2 2
1 1
1 2
1 2
1 1
2 2
2 1
1 1
2 1
2 1
2 2
2 1
2 2
1 2
2 1
2 1
2 2
2 1
1 1
1 2
2 2
2 1
2 1
2 1
1 1
1 2
2 1
2 2
1 1
2 2
2 2
1 2
2 1
2 2
2 1
1 2
1 1
1 2
2 1
1 2
1 2
2 1
1 1
1 2
1 2
2 2
2 2
1 2
2 2
2 1
1 2
2 2
2 2
2 1
2 1
1 1
2 2
2 1
1 1
2 1
1 2
2 1
2 2
2 2
2 1
2 2
2 1
2 1
2 2
1 1
1 2
2 2
2 2
1 1
1 1
1 2
1 1
2 1
2 2
2 1
2 2
2 2
1 2
2 1
1 2
2 2
2 2
2 2
1 1
1 1
2 2
1 2
1 1
2 2
1 1
2 2
2 1
1 2
1 2
2 2
1 2
2 2
2 1
1 1
1 1
1 1
1 2
2 2
2 2
1 2
1 2
2 1
1 1
2 1
1 2
1 1
1 2
2 2
2 1
1 1
2 2
2 1
2 2
2 2
2 1
2 2
2 1
1 2
2 2
1 1
1 2
2 1
2 1
1 2
2 2
1 2
2 2
2 1
1 1
2 1
1 2
2 2
2 1
2 2
2 1
1 1
1 1
2 2
1 1
2 1
2 2
1 2
1 2
2 2
2 1
2 2
2 2
1 1
1 1
2 2
1 1
2 1
2 1
2 2
1 2
2 2
1 1
2 1
1 2
1 1
2 2
2 1
1 2
1 2
1 2
1 1
2 2
1 2
2 1
2 2
1 1
1 2
1 2
2 2
2 2
1 2
1 1
1 1
2 2
1 1
1 1
2 2
2 2
1 1
1 1
1 2
1 2
2 2
1 1
2 1
2 2
1 1
1 1
2 1
1 1
1 1
2 2
2 1
2 1
1 2
2 1
2 2
2 2
1 2
1 1
1 1
2 1
2 2
1 2
1 2
2 2
2 2
1 2
2 1
1 1
2 2
2 2
1 1
2 2
1 1
1 2
2 2
1 1
2 2
2 2
1 2
2 1
2 1
2 1
1 2
1 1
2 1
1 2
2 1
2 2
1 1
2 1
2 1
2 1
1 2
1 2
1 1
1 2
2 2
1 1
1 2
1 1
1 2
2 1
1 2
1 1
2 2
1 1
1 1
1 1
1 1
1 2
1 2
2 2
1 2
1 1
1 2
1 2
1 1
2 1
1 1
1 2
1 1
2 1
1 1
1 1
2 2
1 1
2 2
2 1
2 1
1 2
2 1
1 2
1 2
2 1
1 2
1 1
1 1
2 2
1 2
2 1
1 2
1 1
2 1
1 1
2 1
1 2
1 1
1 1
1 1
1 2
2 2
1 2
1 1
1 1
1 2
1 1
2 2
1 2
2 1
2 2
1 1
2 2
2 1
1 1
2 2
1 2
2 1
1 2
1 2
2 2
2 2
1 2
2 2
1 1
2 1
2 2
2 2
1 2
1 1
2 2
1 2
2 2
2 1
2 1
2 2
2 2
2 2
1 1
1 1
2 2
1 1
1 1
1 2
2 2
1 2
1 2
1 1
2 1
1 1
1 1
2 1
1 1
2 2
2 1
2 2
1 2
2 1
1 2
2 1
2 2
1 2
1 2
2 2
1 2
1 2
2 2
2 1
2 2
2 2
1 1
1 1
2 1
2 2
1 1
1 2
1 2
2 2
2 2
2 2
2 1
1 1
2 2
1 2
2 1
1 1
1 2
2 2
2 1
2 1
1 2
1 1
1 2
1 2
2 1
2 1
2 1
2 2
2 1
2 1
2 2
1 2
2 1
1 2
1 1
2 1
2 1
1 1
1 1
1 2
2 2
1 1
1 2
1 1
1 2
1 1
1 1
1 2
2 1
2 2
2 1
1 2
2 1
1 1
2 1
1 1
1 2
2 2
2 1
2 2
1 1
1 2
1 2
1 1
2 1
1 1
2 2
1 2
1 2
2 2
2 1
2 2
2 1
1 1
1 1
2 1
2 1
1 2
1 1
2 2
2 2
2 1
1 2
1 2
2 1
1 2
2 1
2 2
2 2
1 2
1 1
1 2
1 1
1 1
1 2
2 1
1 1
1 1
1 1
2 2
1 2
1 2
1 2
2 1
2 2
1 2
1 1
2 2
1 1
1 1
2 2
2 1
2 1
1 2
2 2
1 2
1 1
2 1
1 1
1 2
1 1
2 2
2 1
2 1
2 2
1 1
1 1
2 2
1 2
1 1
2 2
2 1
2 1
1 1
1 1
1 1
2 1
1 1
2 1
1 2
1 2
2 1
2 2
1 1
1 2
2 2
1 1
2 2
2 2
2 2
2 1
1 1
2 1
2 1
2 2
2 1
2 2
2 1
1 1
2 1
2 1
1 2
1 1
1 2
2 1
2 1
1 2
1 1
2 2
1 2
1 2
1 1
1 2
2 2
2 1
2 2
2 1
1 2
2 2
2 1
1 1
2 1
2 2
2 2
1 1
2 1
2 1
1 1
2 2
2 2
1 1
1 1
1 2
2 2
2 1
1 1
2 2
2 2
1 1
1 1
1 2
1 2
1 1
1 2
1 1
2 1
2 1
1 1
2 2
1 2
2 1
1 1
1 1
2 1
2 1
2 2
1 2
2 1
2 2
2 2
2 2
1 2
2 2
2 1
1 2
1 1
1 2
1 2
1 1
1 1
2 1
1 1
1 1
1 2
1 1
1 2
1 1
2 1
1 1
1 2
2 1
1 2
1 1
2 1
1 2
2 2
2 1
2 1
1 1
1 1
2 1
1 2
2 1
2 1
1 2
2 2
1 2
2 2
1 1
2 1
2 1
2 1
1 1
2 1
1 2
2 1
1 2
1 2
2 2
2 2
1 1
2 2
1 1
2 2
1 2
2 1
2 1
1 2
2 2
2 1
1 2
1 2
1 1
2 2
2 2
2 2
2 1
2 1
1 1
1 1
2 2
1 1
1 1
2 1
1 1
2 1
2 1
2 2
2 2
2 2
2 1
1 2
1 2
2 1
2 2
1 2
2 2
1 2
1 1
1 2
1 2
1 1
2 2
1 2
2 1
2 1
2 1
2 2
1 1
1 1
1 1
1 1
2 1
1 2
2 1
1 1
1 1
1 2
2 1
1 2
2 2
2 1
2 2
1 2
1 2
1 2
1 1
1 2
2 2
1 2
2 1
1 1
1 1
1 1
1 2
2 2
2 2
2 1
2 1
2 1
1 2
1 1
1 2
2 2
2 1
1 1
1 1
2 2
2 2
1 2
1 2
2 1
1 1
2 1
1 1
2 2
2 2
2 1
2 1
2 2
1 2
2 1
2 2
1 1
2 2
1 1
2 2
1 1
2 2
2 2
2 2
2 1
1 2
1 2
1 2
2 1
1 2
2 1
2 1
1 2
2 1
2 2
1 2
2 2
2 1
2 1
1 2
1 1
1 2
2 1
2 2
2 1
1 2
1 2
1 1
1 1
1 1
2 2
1 2
1 1
2 2
1 2
2 1
1 2
2 2
1 1
1 2
1 1
2 2
1 2
1 2
2 1
2 1
2 1
2 1
1 1
1 2
1 1
1 2
2 1
2 2
1 1
1 2
1 1
1 2
1 1
1 1
1 2
1 1
1 2
2 1
2 1
2 1
2 2
2 2
1 2
1 1
2 1
1 2
2 1
2 1
2 1
1 1
2 1
2 2
1 2
2 2
1 1
1 2
1 1
1 2
2 2
2 1
1 2
1 1
2 1
2 1
1 2
1 2
1 1
2 2
1 1
2 2
2 1
2 2
1 1
2 2
2 2
2 1
1 1
2 2
1 1
1 1
2 2
2 1
2 2
1 2
2 1
1 2
1 1
2 2
1 1
2 1
1 1
1 1
2 2
1 1
2 2
1 1
2 2
1 1
1 1
2 1
2 2
1 2
2 2
2 1
1 1
1 1
1 2
2 2
2 1
2 2
2 2
1 2
2 1
1 1
1 2
1 2
1 2
2 1
2 1
2 2
2 1
1 2
2 1
2 2
2 1
1 1
1 2
1 1
2 2
2 2
2 1
1 2
2 1
1 2
1 1
1 1
1 1
1 1
1 2
1 2
2 2
2 2
1 2
2 1
2 2
1 2
2 1
1 2
2 2
1 2
1 2
2 2
1 2
2 1
2 2
2 1
2 1
2 2
1 2
1 2
1 2
2 2
1 2
1 1
2 2
2 1
1 2
1 2
1 1
2 2
2 1
2 2
1 2
2 1
1 2
2 1
2 2
1 1
2 2
1 1
2 2
1 2
2 1
2 1
2 2
2 2
1 2
2 2
1 2
1 1
2 1
1 2
2 1
2 1
2 2
1 2
2 2
1 2
1 2
2 2
2 1
2 1
1 1
1 2
2 2
2 1
2 1
2 2
1 1
2 1
1 2
1 1
2 2
1 1
1 2
1 2
2 1
1 1
2 1
1 1
2 2
1 2
1 2
1 2
1 2
2 2
1 2
2 2
1 2
2 2
2 1
2 1
2 1
2 2
2 1
2 1
1 2
1 1
2 1
1 1
1 2
1 2
2 2
1 2
2 1
1 2
2 1
2 1
2 1
1 1
2 1
1 2
1 2
1 1
2 2
2 2
2 1
2 1
2 2
2 2
2 2
1 2
1 2
2 1
1 1
1 1
1 1
2 1
2 1
2 1
1 1
2 2
1 2
2 2
2 1
2 1
1 1
1 1
1 1
2 1
1 1
2 1
2 1
2 2
2 1
2 2
2 1
1 2
1 1
1 1
1 1
2 2
2 1
2 2
2 2
2 1
1 2
1 2
2 1
1 1
2 1
2 1
2 1
1 2
1 1
1 1
2 2
2 1
1 1
1 1
1 1
2 1
1 2
2 2
1 1
1 2
1 2
1 1
1 2
2 2
1 2
1 1
2 2
1 1
1 1
1 2
2 2
1 2
1 2
1 2
2 1
2 2
1 2
2 2
1 2
1 2
2 1
2 2
2 1
2 1
1 2
1 2
1 1
2 1
2 1
1 2
2 2
2 2
2 1
2 1
1 1
1 2
2 2
1 1
2 1
2 2
2 1
1 2
2 1
2 1
2 1
2 2
1 2
2 2
2 1
1 2
2 1
1 2
2 2
1 2
2 2
2 2
2 2
1 1
2 2
2 1
1 2
2 1
1 1
2 1
2 2
2 1
1 2
1 2
2 1
1 1
1 1
1 2
1 1
1 1
2 2
2 1
1 2
1 2
1 1
1 1
1 1
1 1
1 1
1 1
1 2
1 1
2 1
2 2
2 1
2 1
2 1
1 1
1 1
1 2
1 2
1 2
2 1
2 2
1 1
1 2
2 2
1 1
1 2
1 2
1 2
1 2
1 1
1 1
2 1
2 2
2 2
1 1
1 2
1 1
2 2
2 1
2 1
1 1
2 1
2 2
2 1
1 2
2 2
2 2
1 2
1 2
2 2
2 2
2 1
2 1
2 2
1 2
2 2
1 2
1 1
2 2
1 1
2 2
2 1
1 1
2 2
1 1
2 1
2 2
1 2
1 2
2 1
2 1
2 1
1 2
1 2
1 2
2 1
2 2
2 2
2 1
2 1
1 2
1 1
2 1
1 2
2 1
2 2
1 1
2 2
2 1
2 2
1 1
2 1
1 1
1 2
2 2
1 2
1 1
1 2
2 1
1 2
1 2
2 2
1 1
1 2
2 1
2 2
1 2
1 2
2 1
2 2
2 2
2 1
1 2
2 1
1 2
1 2
1 1
1 2
1 1
2 1
1 2
2 2
1 2
2 1
2 1
1 1
2 2
1 1
2 2
2 2
2 1
1 2
2 1
2 1
1 1
2 1
2 2
1 2
2 2
1 1
2 1
2 1
1 1
1 2
1 2
2 2
2 1
2 1
1 2
1 1
2 2
2 1
2 1
2 1
1 1
2 1
2 2
1 1
2 1
2 1
1 2
2 1
1 1
2 2
2 1
1 2
2 2
1 2
1 2
2 1
1 1
2 1
1 1
2 2
2 1
1 1
2 2
1 1
2 2
1 2
2 1
1 2
2 1
2 2
1 2
2 2
1 2
1 1
1 2
1 2
1 1
2 2
2 1
2 2
1 1
2 2
2 2
2 2
2 2
1 1
1 1
1 1
1 1
2 2
1 1
1 1
2 2
1 2
1 2
2 2
2 2
1 1
1 2
1 2
2 1
1 1
2 2
1 1
2 2
2 1
2 1
2 1
2 1
2 2
2 1
2 2
2 1
1 1
2 2
2 1
2 1
2 2
1 2
2 2
2 2
1 2
2 2
2 1
2 2
2 1
2 2
2 1
1 2
1 1
2 2
2 2
1 2
2 1
1 2
1 1
2 1
1 2
2 1
2 2
1 1
1 2
1 1
2 2
1 1
2 1
1 1
1 1
1 1
2 2
2 2
2 1
2 1
2 2
2 2
2 2
2 1
2 2
1 1
1 1
2 2
2 2
2 2
2 2
2 1
2 2
2 2
1 1
2 2
1 2
2 1
1 2
2 1
2 2
1 2
2 2
1 2
1 1
2 1
1 1
2 1
2 2
2 2
2 1
1 2
1 1
1 1
2 2
2 1
2 2
2 1
2 2
1 2
2 2
2 1
2 1
2 1
1 1
2 1
1 1
1 2
2 2
1 1
2 2
1 2
1 2
1 1
2 2
2 1
1 2
2 2
1 1
2 2
2 2
2 1
1 1
1 2
2 2
2 2
2 2
2 2
1 1
1 2
2 2
2 2
1 2
1 1
2 1
2 1
2 2
1 2
1 2
2 1
2 1
1 1
1 1
2 1
2 1
1 1
1 2
1 2
2 2
2 2
1 1
2 2
2 2
2 2
2 1
1 1
2 1
1 1
1 2
2 1
1 1
2 2
1 1
1 2
1 1
1 1
1 2
1 2
2 2
2 1
2 1
2 2
2 2
2 2
1 1
2 2
2 2
2 2
1 2
1 2
1 1
2 1
2 2
1 2
1 1
1 1
2 1
2 1
1 2
1 2
1 2
1 1
1 1
1 2
1 1
1 1
2 2
1 1
1 2
1 1
1 1
1 1
1 2
2 2
1 1
2 1
2 2
2 2
2 2
1 1
1 2
1 2
1 2
1 1
2 2
1 2
2 2
2 1
1 1
2 1
2 2
1 2
1 2
2 2
1 2
2 2
1 2
2 1
2 1
1 1
2 2
1 1
2 1
1 1
2 1
2 2
1 2
2 1
2 2
1 1
2 1
2 1
1 1
2 1
1 2
2 1
1 1
1 2
1 1
1 2
2 1
1 2
2 2
1 1
2 1
2 1
1 1
2 1
1 2
1 1
1 2
2 1
2 2
2 2
1 1
2 1
2 1
1 1
2 1
2 2
1 2
1 1
2 1
1 1
2 1
1 2
1 1
1 1
1 2
1 1
2 2
2 2
2 1
1 2
2 1
1 2
1 2
1 1
2 1
1 2
1 2
2 1
2 2
2 1
2 2
1 2
1 1
2 1
2 1
2 2
1 1
2 1
1 1
2 1
2 2
2 2
2 2
2 2
2 2
1 1
1 1
2 1
1 1
2 1
2 2
2 1
2 2
1 2
2 1
2 1
2 1
1 2
2 2
2 2
1 1
1 2
2 2
1 2
2 1
1 1
1 2
1 2
2 1
1 1
1 1
1 1
2 1
1 1
2 2
2 2
2 1
2 1
1 2
2 2
2 1
1 2
2 1
1 2
2 2
1 1
1 2
2 1
2 1
2 2
1 1
1 2
2 1
1 1
2 2
2 1
2 2
1 2
1 2
1 1
1 1
2 2
1 2
1 2
1 2
1 2
2 2
2 1
1 2
1 2
1 2
1 2
2 1
1 2
1 2
1 1
1 1
2 1
1 1
2 1
2 2
1 1
1 2
1 1
1 2
2 1
1 2
2 2
2 2
1 1
2 2
2 2
1 2
2 2
2 2
2 2
2 2
2 1
1 2
1 1
1 2
2 2
1 1
1 2
1 2
2 2
2 2
1 1
2 2
2 1
2 2
1 1
2 2
2 1
2 2
1 2
2 2
2 2
1 2
1 1
2 2
1 1
1 2
2 2
1 1
1 2
1 1
1 1
2 2
1 1
2 2
1 1
2 1
1 2
2 1
1 2
1 1
2 1
2 1
1 2
2 2
1 1
2 2
2 2
2 1
1 2
2 1
1 2
1 1
2 2
1 2
1 2
1 2
1 1
2 1
1 1
1 1
1 2
1 1
2 2
1 2
1 2
2 2
2 1
1 2
2 2
2 1
1 2
1 2
1 2
1 1
1 2
1 2
2 2
2 1
2 2
1 2
2 2
1 1
2 1
2 1
2 1
2 1
1 2
1 2
2 2
2 1
1 2
1 2
2 1
2 1
2 1
1 1
1 1
1 2
2 2
1 2
1 1
1 2
1 1
2 2
2 1
1 2
2 2
2 2
2 2
2 1
1 2
1 2
2 1
2 1
1 1
2 2
1 1
2 2
1 2
2 2
1 2
1 2
2 2
1 1
1 1
1 2
2 2
1 2
2 2
1 2
1 1
1 1
2 1
1 1
1 2
2 2
1 2
2 2
1 2
1 1
2 1
1 2
2 2
1 2
2 1
1 1
2 2
2 1
2 2
1 1
2 2
1 1
2 1
1 2
2 1
2 2
1 2
2 1
2 2
2 1
2 2
1 2
2 2
2 1
1 2
2 2
2 1
1 1
2 2
1 2
1 2
2 1
2 1
1 1
1 1
2 1
2 2
1 1
2 1
2 1
1 1
1 2
2 1
1 1
2 2
2 2
2 2
1 1
2 1
2 1
1 2
1 1
1 2
2 2
1 1
1 1
2 1
1 1
2 2
2 1
2 2
1 1
2 1
2 2
2 1
1 2
2 2
2 1
1 2
2 2
2 2
2 1
2 1
2 1
1 2
2 2
2 2
1 2
1 2
1 1
1 1
2 1
2 1
1 1
2 1
1 2
2 1
2 2
1 2
1 1
2 1
1 1
1 2
1 1
1 2
2 2
2 1
1 2
1 1
1 1
1 2
2 1
2 1
1 2
2 2
2 2
2 1
1 1
1 2
1 1
2 1
2 2
2 1
1 1
1 2
2 1
2 2
1 2
2 1
1 2
1 1
2 1
2 1
2 2
2 1
1 1
2 1
1 1
2 2
1 1
1 1
2 1
2 1
2 2
2 1
2 1
1 2
1 2
1 1
2 1
1 1
2 1
1 2
2 1
2 2
1 2
1 1
1 2
1 2
2 2
1 2
2 2
2 1
1 2
1 1
1 1
2 2
1 2
2 2
2 1
2 1
2 2
2 2
1 1
2 1
2 1
2 2
2 2
1 1
2 2
1 1
1 2
2 2
2 2
2 2
2 2
2 2
2 1
1 2
1 1
1 1
1 2
2 2
2 1
1 2
2 1
2 1
1 1
2 1
1 2
2 1
1 2
1 1
2 2
2 1
1 2
1 1
1 2
1 2
2 1
1 2
1 2
1 2
2 1
1 2
2 1
2 2
2 2
1 2
2 1
1 1
2 1
2 2
2 2
1 1
2 2
2 2
2 2
2 1
1 1
2 1
1 2
2 2
1 1
1 1
2 1
2 2
1 1
1 2
2 2
2 1
2 2
2 1
2 2
1 2
2 1
1 2
1 2
1 2
1 2
1 1
2 1
1 1
1 2
2 1
1 1
1 1
2 2
1 1
2 1
1 2
1 1
1 1
2 1
2 2
2 2
1 2
1 2
1 2
2 1
1 1
1 1
2 2
2 1
1 1
2 1
1 1
2 1
1 2
1 2
1 1
1 1
1 1
2 1
1 1
1 1
2 1
1 2
2 2
2 1
1 1
2 1
1 1
1 1
2 2
1 2
1 2
2 2
2 2
2 2
2 2
1 2
1 2
2 2
1 1
2 1
1 2
1 1
2 2
2 2
1 2
1 1
1 1
1 1
2 2
2 2
2 2
1 1
2 1
2 2
1 2
2 2
2 1
2 2
1 2
1 2
1 2
1 2
2 1
1 1
1 1
2 2
1 1
1 2
2 1
1 2
2 2
1 1
1 2
1 2
2 1
2 1
2 1
2 2
1 2
2 1
1 2
2 1
1 1
1 2
1 2
2 1
1 2
1 1
2 2
1 1
2 2
1 2
1 2
1 2
2 1
2 1
2 2
2 1
2 1
2 1
1 1
1 2
2 2
2 1
1 1
1 2
2 2
2 1
2 2
1 2
2 2
1 2
2 1
1 2
1 2
2 2
1 2
1 1
1 1
2 2
1 2
1 1
1 2
2 1
1 2
1 2
1 2
2 2
1 1
1 1
1 2
2 1
1 1
1 1
2 2
1 1
1 2
2 1
2 1
1 2
1 2
1 2
2 1
2 2
1 1
2 1
1 2
2 2
1 1
1 1
1 1
2 1
2 1
1 2
2 2
2 1
2 2
2 2
1 2
2 1
1 2
1 1
1 2
1 1
2 2
1 1
1 1
1 1
1 2
1 1
1 2
1 1
1 1
1 1
2 2
2 2
1 1
1 1
1 1
1 1
1 1
1 2
2 2
1 2
2 1
2 2
1 2
1 1
1 1
1 2
1 2
2 1
1 2
2 2
2 1
2 1
2 1
2 2
2 2
2 1
1 2
1 1
1 2
2 2
1 2
2 2
1 2
1 1
2 2
2 2
2 1
2 1
1 1
2 1
2 1
1 2
2 1
1 1
1 1
2 2
2 2
1 1
1 1
1 1
1 1
1 2
2 1
2 2
1 1
2 1
2 1
1 2
1 1
2 2
1 1
2 2
1 1
1 1
1 2
2 2
2 2
1 1
2 2
2 2
2 2
2 1
1 2
2 2
2 2
1 2
1 1
1 2
1 1
1 2
1 1
2 2
2 2
2 1
2 1
1 2
2 2
1 1
1 1
2 2
2 1
2 1
1 1
2 2
2 1
2 2
2 1
1 2
2 1
1 2
2 1
2 1
1 1
2 2
1 2
1 1
2 2
2 1
2 1
1 2
1 1
2 2
1 1
2 2
1 1
1 2
2 1
2 2
2 1
1 1
2 1
1 2
2 1
1 1
1 2
1 2
1 2
1 1
1 1
2 1
2 1
2 2
2 2
2 1
1 2
2 1
2 2
1 1
1 1
2 2
2 1
2 1
1 1
1 2
1 2
1 2
1 2
2 2
1 1
1 2
2 2
1 2
2 2
1 1
1 1
2 2
1 2
2 1
2 1
1 2
2 1
1 1
1 2
2 1
1 1
2 1
1 2
1 2
1 2
2 2
2 1
1 2
2 2
2 2
1 2
2 1
1 2
2 2
1 2
2 2
2 2
2 1
1 2
1 2
1 1
2 1
2 1
1 1
2 2
2 1
2 2
1 2
2 2
2 2
2 2
1 1
2 2
1 1
2 2
2 2
2 1
1 1
2 1
2 2
2 1
1 2
2 2
1 2
1 2
2 2
2 1
1 1
1 2
1 1
2 1
2 1
1 1
2 2
2 1
1 1
2 2
2 1
2 1
1 2
1 1
1 2
2 1
1 2
2 2
2 1
1 1
1 1
1 1
2 2
1 1
1 1
2 1
1 2
2 1
1 1
1 2
2 1
2 1
1 1
2 2
1 2
1 1
1 2
1 1
2 2
2 2
2 2
2 2
2 1
2 2
1 1
2 2
2 1
2 1
1 1
1 1
1 2
2 2
1 1
2 1
1 2
2 2
1 1
2 2
1 2
2 1
2 1
1 1
2 2
2 2
1 2
1 1
1 1
2 2
1 1
2 2
1 1
2 2
2 1
2 2
1 2
2 2
2 1
2 2
1 2
1 1
1 1
1 2
2 2
2 2
2 1
1 1
2 1
1 1
2 1
2 2
1 2
1 2
1 2
2 2
1 2
2 1
2 2
2 2
1 1
2 1
1 1
2 1
1 1
1 1
2 2
2 1
1 1
2 1
1 2
1 1
2 1
2 1
2 1
2 1
1 2
1 2
2 1
1 1
2 2
2 2
1 1
2 2
2 2
2 1
2 1
1 2
1 2
2 2
1 2
1 2
2 1
1 1
1 2
2 1
2 2
2 2
1 2
2 1
2 1
1 2
1 1
2 1
2 1
2 2
2 2
2 2
2 1
1 2
1 2
1 2
2 1
1 2
2 2
1 1
2 2
2 2
2 2
2 1
2 1
2 2
1 2
1 1
2 2
1 2
1 1
1 2
1 2
2 1
1 1
1 2
1 1
1 2
2 2
1 2
1 2
2 1
2 1
1 1
1 1
2 2
1 1
2 1
1 2
2 1
2 1
2 2
2 1
1 1
1 1
1 1
2 1
1 2
1 1
2 1
1 2
2 2
1 2
1 1
2 2
2 2
2 1
1 1
1 1
2 1
1 1
1 1
2 1
2 2
2 1
2 2
1 2
2 1
1 2
1 1
1 2
2 1
1 2
1 1
1 1
1 2
2 1
2 1
2 1
2 1
1 2
1 1
1 2
1 1
2 2
2 1
1 2
2 2
2 2
2 2
1 2
2 2
1 1
1 1
2 1
1 1
2 1
1 2
2 1
2 1
1 2
1 1
1 1
2 2
1 1
2 2
2 2
1 2
1 1
2 2
1 2
1 2
1 2
1 2
2 1
1 2
2 1
1 2
2 1
1 2
1 2
1 1
1 2
2 2
1 2
2 1
1 2
1 1
1 2
1 2
1 2
2 1
2 2
2 2
2 2
2 2
1 2
1 2
1 1
1 2
1 1
2 1
2 1
2 2
1 2
2 1
2 2
1 1
2 2
1 2
2 2
2 2
1 1
2 1
1 2
1 2
1 1
1 2
2 2
1 1
1 2
1 1
1 2
1 1
1 1
1 1
2 2
1 2
2 1
2 1
2 2
1 2
2 1
1 2
2 2
1 2
1 1
2 1
2 1
2 2
1 1
1 1
1 2
1 1
1 2
1 1
2 1
2 1
1 1
2 1
1 1
2 2
1 2
1 1
2 1
1 2
2 1
1 1
2 2
2 1
2 1
2 2
2 2
1 1
2 2
1 1
2 2
1 1
2 2
1 2
2 2
2 2
1 1
1 1
2 2
2 1
2 2
1 1
2 1
1 2
1 2
1 2
2 1
1 2
2 2
1 2
2 2
1 2
1 2
2 1
2 1
2 2
1 2
2 2
2 1
2 1
1 2
1 2
1 1
1 1
2 1
2 2
1 2
2 2
1 2
1 2
1 2
2 2
2 2
1 2
2 2
2 1
1 2
2 2
1 2
2 2
2 1
2 1
2 2
2 2
1 1
2 1
1 1
2 1
1 2
2 2
2 2
2 1
1 1
2 2
1 2
2 2
2 1
2 2
1 1
2 2
1 2
1 2
2 1
2 2
2 1
1 1
1 1
2 2
1 1
1 1
2 1
1 2
1 1
1 2
1 2
1 2
1 2
2 1
1 2
2 1
2 1
1 1
2 2
2 1
2 2
1 2
1 1
2 1
2 2
2 2
1 1
2 1
1 2
2 2
2 1
2 2
1 2
2 2
1 2
2 2
2 1
1 1
1 1
2 2
2 1
1 2
2 2
1 1
2 1
1 1
2 2
2 2
1 2
1 1
1 1
1 2
1 1
2 2
1 1
2 2
1 2
2 2
2 2
1 2
2 2
2 2
1 1
1 1
2 2
2 2
1 1
1 1
1 2
1 2
2 2
2 2
1 2
1 2
2 1
1 1
1 2
2 1
2 2
1 2
1 2
2 2
2 2
2 2
1 2
1 2
2 1
1 2
2 1
1 2
1 2
1 1
2 2
2 2
2 1
2 1
2 2
2 2
1 1
1 2
1 2
2 1
2 1
2 1
1 2
2 1
2 2
2 1
1 2
2 1
1 1
2 1
1 2
2 1
2 2
1 1
2 1
2 1
2 2
1 2
2 1
1 2
2 1
1 2
2 1
2 2
2 2
1 1
2 1
1 2
2 2
2 1
2 1
2 2
1 2
2 2
1 1
2 2
1 2
1 2
1 1
2 1
1 2
1 2
1 1
1 2
1 2
1 1
2 2
2 1
2 2
2 2
2 1
2 1
1 2
1 2
1 2
1 2
1 2
1 1
2 1
2 1
2 2
2 2
1 2
1 1
2 1
1 1
1 2
2 2
1 1
2 2
2 2
1 1
2 2
2 2
2 1
2 1
2 2
1 2
2 1
2 2
1 1
1 2
2 2
2 2
1 1
1 2
1 2
1 1
2 2
1 2
1 2
1 2
2 2
1 1
2 1
1 1
2 2
1 2
2 1
2 1
2 1
1 2
1 1
2 2
1 2
2 2
1 1
1 2
1 2
1 1
2 1
1 2
2 2
2 1
1 2
1 2
2 2
2 1
2 1
1 2
1 2
1 1
1 2
1 1
2 1
2 2
1 1
1 1
1 2
1 2
2 1
1 2
2 1
1 2
2 2
1 2
2 2
1 2
2 2
2 2
1 2
1 1
1 1
1 1
2 1
1 1
2 2
2 2
2 2
2 1
2 2
2 2
2 2
1 1
2 2
1 1
1 1
1 2
1 2
2 2
2 2
2 1
2 2
2 2
1 1
2 1
2 2
1 1
2 2
1 2
2 2
1 1
1 2
1 1
2 2
2 1
2 1
2 1
1 2
2 2
1 1
1 2
2 1
2 1
2 2
1 2
1 1
2 2
2 2
1 1
2 2
2 1
1 2
2 1
1 2
1 2
1 2
1 1
2 2
1 2
2 1
1 1
2 1
2 2
2 2
2 1
2 1
2 2
2 2
2 1
2 1
2 2
1 2
1 1
1 2
2 2
2 1
1 1
2 1
1 2
2 1
2 2
1 1
2 2
2 1
2 1
2 2
1 2
2 1
2 2
1 1
2 2
2 1
1 1
2 1
2 2
2 2
1 2
2 1
1 2
1 1
2 2
1 2
1 2
1 2
1 2
2 1
1 2
1 2
2 1
2 1
1 1
2 1
1 2
2 2
1 1
2 1
1 1
1 2
1 2
1 1
1 1
1 1
1 1
1 1
2 1
1 1
1 2
1 1
2 2
1 1
2 2
1 2
2 2
1 1
2 1
1 2
2 2
1 1
2 2
2 2
2 2
1 1
1 1
1 1
1 1
2 1
2 2
2 1
2 2
2 2
1 1
2 1
2 2
1 2
2 1
2 2
2 1
2 1
2 2
1 1
1 1
1 1
2 2
1 2
1 1
1 1
1 1
2 1
2 1
2 1
2 1
2 2
1 1
2 2
2 2
1 2
1 1
1 2
2 2
1 2
1 1
1 1
1 2
1 1
2 1
2 1
1 2
2 2
2 1
2 2
2 1
1 2
1 2
1 2
1 2
2 1
2 1
1 1
2 2
1 1
1 2
1 2
2 2
1 2
2 2
2 2
1 1
1 1
1 1
2 2
2 2
2 2
2 1
2 2
2 2
1 2
2 2
2 1
1 1
2 1
1 1
1 2
2 2
2 1
2 2
2 1
2 1
1 1
1 2
1 1
1 2
1 1
1 2
2 1
2 1
1 1
1 1
1 1
2 1
2 1
1 1
1 2
1 2
2 1
2 2
1 1
1 1
2 2
1 1
1 1
1 1
2 1
1 1
1 2
1 1
2 1
1 1
1 2
2 2
1 1
2 1
1 1
1 2
2 2
1 1
1 2
2 2
2 1
2 1
1 2
2 1
1 1
2 2
1 1
2 2
1 2
2 1
2 1
1 2
2 1
2 1
2 1
2 2
2 2
2 2
2 2
1 2
1 2
2 2
1 1
2 1
1 1
2 1
1 2
1 1
2 1
1 2
2 1
2 2
2 1
2 2
1 1
2 2
1 2
2 1
2 1
1 1
1 1
2 1
1 2
1 2
2 1
1 2
1 2
1 2
2 1
1 1
2 2
2 2
2 1
2 2
2 1
2 2
1 1
2 1
1 2
1 1
1 1
2 2
1 1
1 1
2 2
1 1
1 1
1 2
1 1
2 2
2 1
2 2
1 2
1 1
2 2
1 2
2 1
1 2
1 2
2 1
1 2
1 2
2 1
1 2
1 2
2 1
1 1
2 2
1 2
1 2
1 2
1 2
2 2
1 1
2 2
2 1
2 2
2 1
1 2
1 1
1 1
1 1
2 2
2 2
2 2
2 2
2 1
1 2
2 1
1 1
2 1
2 1
1 1
1 1
2 2
2 1
2 1
2 2
2 2
2 1
1 1
2 1
2 2
2 1
1 1
1 2
1 2
2 2
2 2
2 1
1 1
1 2
2 2
1 1
1 2
1 1
1 2
2 1
1 2
2 1
2 1
1 1
2 1
1 1
2 1
1 1
2 2
2 1
2 1
2 1
2 1
1 2
2 1
2 1
1 2
1 1
2 2
1 2
1 1
1 1
1 2
1 1
2 1
1 1
1 1
1 2
1 2
2 2
1 2
1 1
2 1
2 1
2 1
1 1
1 2
1 2
2 1
2 1
2 2
2 1
2 1
2 2
2 2
1 2
2 1
2 1
2 2
1 2
1 1
1 2
2 2
1 2
1 1
1 1
2 2
2 2
2 2
1 1
2 2
1 2
1 1
2 2
2 2
2 1
1 1
1 2
2 2
1 1
2 1
1 2
2 2
2 2
2 1
1 2
1 2
1 2
1 2
2 2
1 2
2 1
2 2
1 1
2 1
1 1
2 2
2 2
2 2
1 1
2 2
2 2
2 1
2 1
2 1
2 1
1 2
1 2
1 2
1 2
2 2
2 1
1 2
1 2
1 2
1 1
2 1
1 2
2 2
1 1
2 2
1 1
1 1
1 1
2 2
2 1
2 1
1 1
2 1
1 1
1 2
2 1
2 2
2 2
1 2
2 2
1 1
2 1
1 1
1 1
2 2
1 2
1 1
2 2
1 1
1 1
2 1
1 2
1 1
2 2
1 1
2 2
2 2
1 1
2 2
2 1
2 1
1 2
2 2
2 1
2 1
2 1
1 2
2 2
1 1
1 2
2 2
2 1
2 1
1 2
2 2
1 2
1 2
1 1
2 1
1 1
2 1
2 1
1 1
2 1
1 2
2 2
2 1
1 2
1 2
2 2
2 2
2 1
2 1
2 1
1 1
1 2
1 1
1 2
1 1
2 2
1 1
2 1
2 2
2 1
1 1
2 1
2 2
1 1
2 1
2 1
2 2
1 2
1 2
1 1
2 1
1 2
2 2
1 1
2 1
1 1
1 2
1 2
2 1
1 2
2 1
2 2
1 2
1 1
1 1
1 2
2 1
2 1
2 2
1 2
1 1
2 2
2 2
2 2
1 1
2 1
2 1
1 2
2 1
1 2
1 1
2 2
2 2
1 2
1 1
1 2
1 1
1 1
2 1
1 1
1 2
1 1
2 1
2 2
1 2
2 2
2 1
1 1
2 2
2 2
2 2
2 2
1 2
2 1
2 1
2 1
2 1
1 1
1 2
1 1
1 1
1 1
2 1
1 1
2 1
1 1
2 1
1 2
1 2
2 1
2 2
2 2
2 1
2 2
1 2
1 1
1 2
1 1
1 2
1 1
1 1
2 1
1 1
1 1
1 2
2 2
1 1
1 2
2 2
1 2
1 2
2 1
2 2
2 2
2 2
2 2
2 2
1 2
1 1
1 1
2 1
1 2
2 1
1 1
1 2
1 2
1 2
2 1
1 1
1 2
2 1
1 1
2 2
2 2
2 1
1 1
1 2
1 2
2 1
2 1
1 1
2 2
1 2
1 2
2 1
2 1
2 2
1 1
2 1
2 2
1 2
2 2
1 1
1 2
2 2
1 2
1 2
2 1
2 1
2 1
2 2
2 1
2 1
1 2
1 2
1 2
1 2
2 2
1 2
1 2
1 1
2 2
2 1
1 1
1 1
1 1
2 2
1 1
2 2
2 2
2 1
1 2
2 2
2 2
2 1
1 2
2 1
2 2
1 2
2 1
1 2
2 1
2 1
2 2
1 1
1 2
2 1
2 2
2 1
2 2
2 1
1 1
1 1
2 2
2 1
2 2
2 1
1 1
2 2
2 1
2 1
1 2
2 2
2 1
1 1
2 2
1 1
2 1
2 2
1 2
1 2
2 1
1 2
2 2
1 1
1 2
1 1
1 1
1 1
2 1
1 2
2 2
1 1
2 2
2 1
2 1
1 2
1 1
1 1
1 1
2 2
2 2
2 1
2 2
2 1
2 1
1 1
2 2
1 2
1 1
1 1
2 1
1 1
2 1
1 2
1 2
1 1
1 1
2 1
1 1
2 1
2 2
2 2
2 2
1 1
2 2
1 2
2 2
2 2
2 2
2 2
1 2
1 1
1 1
1 1
2 2
1 2
1 2
1 1
1 2
2 2
2 1
1 2
1 1
1 1
2 2
1 2
2 1
2 2
1 1
2 2
2 2
2 2
1 1
2 1
1 2
1 2
1 2
2 1
1 2
2 1
1 1
2 1
1 2
2 1
1 1
1 1
1 2
2 2
2 2
1 2
2 1
1 1
1 2
1 1
1 1
1 2
1 1
1 2
2 2
1 2
1 1
2 1
1 2
1 2
1 2
2 2
1 1
1 2
1 1
1 1
2 1
1 2
1 2
1 2
2 2
1 1
2 1
2 1
2 2
1 2
2 2
2 1
1 1
2 1
1 1
1 2
1 2
2 2
2 1
1 1
2 1
2 2
1 2
1 1
1 2
2 1
1 1
1 1
1 2
1 1
1 2
2 2
1 1
1 2
1 1
2 1
2 2
2 2
1 1
1 1
1 1
1 2
2 2
1 2
1 1
2 1
2 2
1 1
2 1
2 2
2 1
1 1
2 1
1 2
1 1
1 1
2 2
2 1
1 1
2 1
2 2
2 1
2 1
1 2
1 2
1 1
2 2
2 2
1 2
2 2
2 1
1 2
1 1
1 1
2 2
1 1
1 2
1 1
1 2
2 2
1 2
2 1
1 2
1 1
1 1
2 2
2 1
2 1
2 1
1 1
1 1
1 1
1 2
1 2
2 2
2 2
2 1
1 2
1 1
1 1
2 2
1 2
2 2
2 2
2 2
2 2
1 2
2 1
1 2
2 1
2 1
2 2
1 1
1 2
2 2
2 2
1 1
2 2
1 1
1 1
1 1
2 1
2 2
1 2
1 1
2 1
2 2
2 1
2 1
1 2
2 1
1 2
2 2
1 1
1 1
2 2
2 2
2 1
1 2
1 2
2 2
2 1
1 2
1 2
2 2
2 1
1 2
1 1
1 1
1 1
2 1
1 2
2 1
1 1
1 1
2 1
1 2
2 2
2 2
1 2
1 2
1 1
2 2
1 2
1 2
2 2
1 1
2 1
2 1
1 1
1 2
1 2
2 1
1 1
2 2
1 1
2 1
2 2
2 1
2 1
1 1
2 2
1 1
2 2
2 1
2 2
1 2
2 1
2 1
2 1
2 1
2 1
1 2
2 1
1 2
2 2
1 2
1 1
1 1
2 1
1 2
1 1
2 2
2 1
2 2
2 1
2 2
2 2
2 2
2 1
1 1
1 1
2 2
2 1
2 1
1 2
1 1
2 2
2 2
1 2
1 2
1 1
1 2
2 2
1 2
2 1
1 2
1 2
1 1
1 2
2 2
2 1
1 2
1 1
1 1
2 2
1 1
1 2
1 2
2 1
1 1
2 1
2 2
1 1
2 2
2 2
2 1
1 1
2 2
1 1
1 1
2 1
1 2
1 1
2 2
2 1
1 1
1 1
1 2
2 2
1 2
2 1
1 2
2 1
2 2
1 2
2 2
2 1
1 2
1 1
1 2
2 2
2 2
2 2
2 2
2 1
1 2
1 1
1 1
2 2
1 1
2 2
2 2
2 1
1 2
2 2
2 1
1 1
1 1
1 2
1 1
2 2
2 1
1 2
2 1
2 2
2 1
1 1
2 2
2 2
1 2
2 2
2 2
2 2
1 1
2 2
1 2
2 2
2 1
2 1
2 1
2 1
2 1
1 1
2 1
2 2
2 2
1 2
1 2
1 1
2 2
2 1
1 2
1 2
2 2
2 2
1 1
2 2
1 2
1 2
2 1
2 2
1 2
1 2
2 2
2 2
2 2
1 1
1 1
1 2
1 1
2 2
1 2
2 2
1 2
1 2
1 1
2 2
1 1
1 2
1 1
1 1
2 1
2 2
1 2
1 1
2 1
2 1
2 2
2 1
2 2
1 2
1 2
2 2
1 1
1 1
2 1
2 2
2 2
2 1
2 1
1 2
2 2
1 2
2 2
2 1
1 1
2 1
1 2
1 1
2 2
1 2
2 2
2 2
1 1
1 1
1 1
1 2
2 1
2 1
1 1
1 2
1 2
2 2
2 2
1 1
2 1
2 2
2 2
2 1
1 2
1 1
2 1
1 2
1 1
2 1
1 1
1 1
1 2
1 1
1 2
1 1
1 1
2 1
2 1
1 2
2 2
2 1
1 2
2 1
2 2
2 2
2 2
2 1
2 1
2 2
2 1
2 1
2 1
1 1
1 1
2 1
1 2
2 1
1 2
1 2
2 2
1 2
1 1
2 1
2 1
1 2
1 2
1 1
1 1
2 2
2 2
2 1
1 2
1 1
1 2
2 2
2 1
1 1
1 2
2 2
2 2
2 2
1 2
2 2
2 2
1 2
2 2
2 1
2 1
1 1
2 2
1 2
1 1
1 1
1 1
1 2
1 1
1 2
2 2
2 1
2 2
1 2
2 1
2 2
1 1
1 2
1 1
1 1
2 1
2 2
1 2
2 1
2 2
2 2
2 2
1 1
1 2
2 1
1 2
2 1
1 1
1 2
1 2
2 2
2 1
2 1
2 1
1 1
1 1
1 2
2 1
2 2
2 2
1 1
2 1
2 2
2 1
2 1
2 1
2 1
2 2
1 1
1 1
1 2
1 2
1 2
2 2
2 2
1 2
1 2
1 2
2 1
2 2
1 2
1 2
2 2
1 1
2 1
1 1
2 1
1 1
2 1
1 1
2 2
2 2
2 1
1 1
2 1
1 1
1 2
1 2
2 1
1 2
2 1
1 2
1 2
1 2
2 2
2 1
1 2
2 2
2 2
1 2
2 2
2 2
1 1
2 1
2 2
2 2
2 2
1 1
2 1
1 2
2 1
1 1
1 2
1 2
1 1
2 1
1 1
2 1
2 1
2 1
1 1
1 1
1 2
2 2
2 2
1 1
2 1
2 2
1 1
2 1
1 2
1 2
1 1
1 1
1 1
1 2
1 1
2 1
1 2
1 2
2 1
2 2
1 1
2 2
2 2
1 1
2 1
1 2
2 2
1 1
2 2
2 1
2 2
1 2
1 2
2 2
2 2
2 2
1 1
1 2
1 1
2 1
2 2
2 1
2 1
1 2
2 2
2 2
1 1
1 2
2 1
1 2
2 1
1 2
1 1
1 2
1 2
1 1
2 1
1 2
1 2
2 2
2 1
1 2
2 1
1 1
2 1
1 2
2 1
2 1
1 1
2 2
1 1
2 2
1 2
1 1
2 2
2 1
2 2
1 2
1 1
1 2
2 1
2 2
1 1
1 1
2 1
1 1
2 2
2 2
1 1
1 1
2 2
1 2
2 1
2 1
2 2
2 2
2 1
2 1
1 1
2 2
1 1
2 1
1 2
2 2
2 1
1 1
1 2
2 2
2 2
1 1
1 2
1 1
1 1
1 1
2 1
2 1
2 2
1 1
1 2
2 2
1 2
1 1
2 2
2 2
1 1
2 1
2 2
1 2
2 2
2 1
2 1
1 1
1 2
1 1
2 2
2 1
1 1
2 1
1 1
1 1
1 1
1 2
1 2
1 1
1 2
1 2
2 1
2 1
1 1
2 2
1 1
2 2
1 2
2 2
1 2
2 1
1 2
2 2
2 2
2 1
2 2
1 2
1 2
1 2
1 2
1 1
1 2
1 2
1 1
1 2
1 2
2 1
2 2
1 1
2 1
2 2
1 1
2 1
2 2
1 1
1 2
2 1
2 2
2 1
2 2
1 1
1 1
1 1
1 2
2 1
2 1
1 1
2 2
1 2
2 1
1 1
2 2
1 2
1 1
1 1
2 1
2 2
1 2
1 2
1 1
1 1
1 2
2 1
1 2
2 1
1 2
1 2
1 1
2 2
2 2
2 1
1 2
1 1
1 2
2 2
2 1
1 2
2 1
1 2
2 1
1 1
1 2
2 2
1 2
1 1
2 1
1 1
1 1
1 2
2 2
1 1
1 1
2 1
1 2
2 1
1 2
1 1
1 1
2 2
2 1
2 1
2 2
1 1
2 1
1 1
1 1
2 1
2 2
2 2
2 1
2 1
1 2
2 1
1 1
1 1
1 1
1 1
1 2
1 1
2 1
1 2
1 2
2 2
2 1
2 2
2 1
1 1
2 1
1 2
1 2
2 2
2 1
1 1
1 2
2 2
1 1
1 1
2 1
1 2
2 2
2 2
1 2
2 2
1 2
1 2
1 1
2 1
2 2
2 1
1 1
1 2
1 2
1 2
1 1
1 2
1 1
1 2
2 1
2 2
1 1
1 1
2 1
2 1
1 2
2 2
2 1
1 1
1 1
1 2
2 1
1 2
1 2
1 1
1 2
1 1
2 2
2 1
2 1
1 2
1 2
2 2
1 1
2 2
2 1
2 1
1 2
2 2
2 2
1 2
2 1
1 2
1 2
2 1
2 1
2 2
2 2
1 2
2 1
1 2
2 1
1 2
1 1
2 2
2 1
2 1
1 2
1 1
1 2
1 1
2 2
2 1
2 1
2 1
2 1
1 1
2 1
1 1
1 1
2 2
1 2
2 2
2 1
2 1
2 1
2 2
1 2
1 2
2 2
2 1
1 2
2 2
2 2
1 1
2 1
2 2
1 1
1 1
2 1
1 2
2 2
2 1
2 1
1 2
1 2
2 2
1 1
2 2
1 1
1 1
1 1
1 2
1 2
2 2
1 2
1 2
2 2
1 1
1 1
1 1
1 2
2 2
2 1
2 1
2 1
1 2
1 2
1 1
1 1
1 2
1 2
2 1
1 1
1 1
1 2
1 2
1 2
1 2
1 1
1 1
1 1
1 1
1 2
1 1
1 2
1 1
1 1
1 2
1 2
2 2
2 2
2 2
1 2
1 1
2 2
1 2
2 1
1 1
2 1
1 2
1 1
2 2
2 1
2 1
1 1
2 2
1 2
1 2
2 1
2 1
1 1
1 2
2 1
1 2
1 2
1 1
2 1
2 1
1 2
2 2
2 1
1 2
2 1
2 2
1 2
2 2
2 2
2 1
1 2
1 2
2 1
2 2
1 2
1 1
2 1
1 1
1 1
2 1
2 2
1 2
1 1
1 2
1 1
1 2
1 2
1 1
1 2
2 2
1 2
2 1
1 1
1 1
1 1
1 2
2 2
2 1
1 2
1 2
2 2
2 1
2 1
1 1
1 1
1 1
2 2
2 2
2 2
2 1
1 2
2 2
2 1
1 2
1 2
2 1
1 1
2 2
2 2
2 1
1 1
1 1
1 2
1 1
2 2
1 1
1 2
2 1
1 2
2 1
1 2
1 1
1 1
2 1
2 2
2 1
2 1
1 2
2 1
1 1
1 2
2 1
2 1
1 2
1 1
2 2
2 1
2 1
1 1
1 2
2 2
2 1
2 1
1 2
1 1
1 1
2 1
1 2
2 1
2 1
2 2
1 2
2 2
2 1
2 1
1 1
1 2
2 1
1 1
1 2
1 1
1 1
1 1
1 1
2 2
2 2
1 2
1 1
1 2
1 2
2 2
1 1
2 2
2 2
2 2
1 1
2 1
1 2
1 2
2 2
1 1
1 2
1 1
2 1
1 2
1 2
1 2
1 1
2 2
2 1
2 1
2 2
2 2
1 1
1 1
2 2
1 2
1 1
1 1
2 1
2 1
1 2
2 2
2 2
2 1
2 1
2 2
2 2
1 1
1 2
2 2
2 2
1 2
1 2
2 1
1 2
1 2
2 2
1 1
1 2
1 2
2 2
2 2
2 1
1 1
2 1
2 1
2 2
1 1
1 1
1 2
2 2
1 2
1 1
1 2
1 1
1 1
1 1
1 2
1 2
1 2
2 1
1 2
1 2
2 1
2 1
2 2
1 2
1 1
1 1
1 2
2 2
1 1
1 2
1 1
2 2
2 2
1 1
2 2
1 1
1 1
1 2
1 2
2 1
2 1
2 2
2 1
2 1
1 2
2 1
2 1
1 1
2 1
2 2
1 2
1 2
2 2
1 2
2 2
2 2
1 2
1 1
2 2
1 1
1 2
1 2
1 1
2 2
1 2
1 2
1 2
2 1
1 2
2 2
1 1
1 2
2 2
1 2
1 2
2 1
1 2
1 1
1 1
2 1
2 2
1 1
1 2
2 1
2 1
1 1
2 2
2 1
1 2
2 2
2 2
2 1
2 1
2 2
2 2
2 2
2 2
2 1
2 2
1 1
2 2
1 2
2 2
1 2
1 1
1 1
1 2
2 2
2 2
2 1
2 2
2 2
2 1
1 2
1 2
2 1
1 1
2 1
2 2
1 2
1 1
1 1
2 2
1 2
1 1
1 2
2 1
2 2
2 1
1 2
2 2
1 1
1 1
2 2
1 1
2 2
1 1
2 1
2 1
2 1
1 1
1 1
2 2
2 1
2 1
2 2
1 1
2 1
2 2
2 1
1 2
1 1
2 1
2 1
2 2
2 2
2 1
1 2
2 2
2 2
1 2
2 1
1 2
2 2
1 1
1 1
2 2
2 1
1 1
1 2
2 2
2 1
2 2
1 1
1 2
2 2
1 1
2 1
1 2
1 2
2 1
2 1
2 2
1 1
1 2
2 1
1 2
2 1
1 1
1 2
2 1
2 1
2 1
1 1
2 1
1 1
2 2
2 2
1 2
1 2
1 2
1 1
2 1
2 2
1 1
1 2
1 2
2 2
1 1
1 2
1 2
2 2
1 1
1 1
2 2
2 1
2 2
2 2
2 2
2 2
1 2
1 2
2 2
2 1
1 2
2 2
2 2
2 1
1 2
1 1
2 1
1 2
2 1
2 1
1 1
2 2
1 2
2 2
2 1
2 2
1 2
1 2
2 2
2 1
2 2
1 1
2 2
2 1
2 1
2 2
2 1
1 2
1 2
1 1
1 1
2 2
1 1
2 1
2 2
1 2
2 1
2 1
2 2
1 1
2 2
1 1
2 2
2 1
1 1
1 1
2 1
1 2
1 2
2 1
1 1
1 2
2 1
2 2
1 1
2 1
1 2
1 2
1 1
2 1
1 2
2 1
2 1
2 1
1 2
2 2
2 1
1 2
2 2
1 1
1 2
2 2
2 1
2 2
1 2
1 1
1 1
2 1
1 1
1 1
1 1
1 2
1 1
1 1
1 1
2 1
1 2
2 2
1 1
2 1
1 2
2 1
2 2
1 2
2 2
1 1
1 2
1 2
1 1
1 2
2 2
1 1
2 2
1 1
1 2
1 1
1 1
2 2
2 2
1 2
2 2
1 1
1 2
1 1
1 2
2 1
1 2
1 1
2 1
2 2
2 2
2 1
1 2
1 2
1 1
2 1
1 2
1 1
1 1
1 1
1 2
1 1
1 1
1 1
2 1
2 2
1 2
2 1
1 1
2 1
1 1
1 2
1 2
2 2
2 2
2 1
1 2
2 2
2 1
1 2
2 1
2 1
1 2
2 2
2 2
1 1
2 1
1 1
2 2
2 1
2 1
1 2
1 2
2 1
1 1
1 2
1 2
1 1
2 2
2 2
2 2
2 1
2 2
1 2
1 1
1 2
2 2
2 2
1 2
2 2
2 1
1 1
2 2
2 1
1 2
1 1
2 2
1 2
1 1
2 2
2 1
2 1
1 1
1 1
1 2
2 1
1 2
2 1
1 1
2 2
2 1
1 2
2 2
2 1
1 2
2 2
2 1
2 1
2 2
2 1
2 2
2 2
1 1
1 2
1 1
2 2
2 2
2 2
1 2
2 1
1 1
2 2
1 2
1 2
1 2
2 1
1 2
2 1
2 1
2 2
1 2
1 2
1 2
1 1
2 1
1 1
1 1
1 1
2 1
1 1
2 2
2 1
2 1
2 2
2 1
1 1
2 2
2 1
1 2
2 2
1 2
2 1
1 2
1 1
1 2
2 1
2 2
1 2
2 2
1 2
1 1
2 2
2 2
1 2
1 2
2 2
2 1
1 2
2 2
1 2
1 1
1 2
2 2
2 2
1 2
1 2
1 1
2 2
2 2
2 2
1 2
2 1
2 1
1 1
2 2
2 2
2 2
2 1
2 1
2 1
1 2
2 1
1 2
1 1
1 1
2 2
1 1
2 2
1 2
1 2
1 1
1 1
1 2
2 1
2 1
2 2
2 2
2 2
1 1
1 2
1 1
2 2
2 1
1 2
2 2
2 1
2 1
1 1
2 1
2 1
2 1
1 1
1 2
1 1
2 2
1 2
1 1
2 2
1 1
1 2
1 1
2 1
1 2
1 1
1 2
2 1
1 1
1 2
2 1
2 2
2 2
1 1
1 2
1 2
1 2
2 2
2 2
1 2
2 1
2 2
2 2
1 2
1 1
2 2
1 1
2 2
2 1
2 1
2 1
1 2
1 1
2 2
2 2
2 2
2 1
2 1
1 2
2 1
1 2
2 2
1 1
2 2
2 1
1 2
1 2
2 2
2 1
1 1
1 1
1 1
2 2
2 2
2 1
2 1
1 2
1 1
2 1
2 2
1 2
2 2
2 2
1 1
1 1
2 1
2 2
2 1
2 2
1 1
1 2
2 2
1 2
2 1
1 1
1 2
2 1
2 1
2 1
2 1
2 2
1 1
2 2
2 2
1 2
1 2
1 1
2 1
2 1
2 2
2 1
1 2
2 1
1 2
2 2
1 2
1 1
2 2
2 1
1 2
2 1
2 2
1 2
1 2
2 1
2 1
1 2
1 1
2 2
2 2
2 1
1 2
2 1
1 1
2 1
2 2
1 1
1 1
2 1
1 1
1 2
1 2
2 2
1 2
1 1
1 1
2 2
1 2
2 2
2 1
1 2
2 1
1 1
1 2
1 2
2 2
2 2
2 1
2 2
2 2
2 2
1 2
2 2
2 2
1 1
1 2
2 1
2 2
2 2
2 2
2 2
1 1
2 1
1 1
2 2
2 1
2 2
1 2
2 1
2 2
1 2
2 2
1 2
1 2
1 2
1 1
2 2
2 1
2 1
1 1
1 2
2 1
2 2
1 1
1 2
2 2
1 1
2 1
2 2
2 1
1 1
1 2
1 1
2 1
1 2
1 2
2 1
1 2
1 1
2 1
2 1
1 1
2 1
1 2
2 1
1 2
2 1
1 1
2 1
2 1
1 1
1 2
1 1
1 1
1 1
2 1
1 1
2 1
2 2
2 2
1 2
2 1
1 1
1 1
2 1
1 1
2 2
1 2
1 2
2 2
2 1
2 2
2 1
2 2
1 1
1 2
1 1
1 1
1 1
1 1
1 2
2 2
1 1
2 2
1 1
2 2
2 2
1 2
1 2
1 2
1 2
1 1
2 2
1 1
2 1
1 1
2 1
1 2
2 2
2 1
1 2
1 2
2 1
1 1
2 1
1 2
2 1
2 1
2 1
2 1
1 2
2 2
2 2
1 2
1 2
1 2
2 2
1 1
2 2
1 1
1 1
1 1
1 2
2 2
2 1
1 1
2 2
1 2
2 1
2 1
2 2
1 1
1 1
1 1
2 1
2 1
1 1
2 2
1 2
1 1
1 2
1 2
2 2
1 1
2 1
2 2
1 1
1 2
1 1
2 1
1 1
1 1
1 2
2 1
2 1
2 1
1 1
2 1
1 1
2 1
1 2
1 2
2 1
1 2
1 1
2 2
2 1
1 1
2 2
1 2
1 1
2 2
2 2
2 2
2 2
2 2
1 1
1 1
1 2
1 1
2 1
1 1
2 1
2 2
1 2
2 2
1 2
2 2
1 1
2 2
2 2
1 2
1 1
1 1
2 1
1 2
2 1
2 2
1 2
1 1
2 2
2 2
2 2
1 2
1 1
1 1
1 1
2 2
1 1
2 1
1 1
2 1
1 2
1 1
2 2
2 2
2 2
1 1
1 1
1 2
2 1
1 1
2 2
1 1
1 2
1 2
2 1
2 1
2 1
2 2
2 1
2 1
2 1
1 1
2 1
1 1
2 2
2 1
2 1
2 1
1 2
2 2
2 2
1 1
2 2
1 2
1 1
2 1
2 1
2 2
1 2
2 1
2 1
2 1
2 2
1 2
2 2
1 2
2 1
1 1
2 2
2 1
2 1
1 2
2 2
2 2
2 1
1 2
2 2
1 2
1 1
2 2
2 1
1 1
2 1
2 1
1 1
1 2
1 2
2 1
1 2
2 1
2 2
1 1
1 2
2 1
1 2
2 1
1 2
2 1
2 2
1 2
1 1
2 1
1 1
1 1
1 1
2 1
2 2
2 1
2 1
1 2
2 1
1 2
2 1
2 2
2 1
2 2
2 1
2 2
2 2
2 1
1 2
1 2
1 2
1 1
2 2
1 1
2 2
2 2
2 1
2 1
1 1
1 2
1 2
2 1
2 1
2 1
1 2
1 1
2 2
2 2
2 1
2 2
1 2
2 2
2 2
1 2
1 2
2 2
2 1
2 1
2 2
2 2
1 1
1 1
1 2
2 1
2 2
1 1
2 1
2 2
1 1
2 1
2 2
1 1
2 1
1 2
2 2
2 2
2 2
1 1
2 1
2 1
2 1
1 2
1 1
1 1
1 2
1 1
1 1
1 1
2 2
2 2
1 1
1 1
1 1
2 1
2 2
1 1
1 2
2 1
2 2
1 2
1 1
1 1
1 2
1 1
1 2
1 2
1 2
2 2
2 1
1 2
1 1
2 2
2 1
2 2
1 1
1 1
1 2
2 1
1 2
1 1
2 1
2 2
2 1
1 2
2 1
2 2
1 1
2 1
1 2
2 2
1 2
2 2
2 2
1 2
2 1
2 2
1 1
1 2
1 2
2 2
2 2
2 2
2 1
2 2
1 2
2 1
2 1
1 1
2 1
2 1
1 2
2 1
1 1
1 1
1 1
1 1
2 1
1 1
2 1
1 1
1 1
2 1
1 1
1 1
2 1
2 2
2 1
2 1
1 1
2 1
1 2
2 2
1 1
2 2
1 1
2 1
2 2
2 1
2 1
2 2
1 1
1 2
1 2
1 1
2 1
1 2
2 1
2 2
2 1
2 2
2 2
2 2
2 2
1 1
1 1
2 2
2 1
1 2
2 2
2 1
1 1
2 2
1 2
2 1
1 1
1 1
2 1
1 2
1 2
2 2
2 1
2 2
1 1
2 2
1 2
1 2
2 1
2 1
2 1
1 2
2 2
1 2
2 1
2 2
2 2
2 1
2 2
2 1
1 1
1 2
1 2
2 2
2 2
1 1
1 2
1 2
2 1
1 1
2 1
2 2
2 2
2 1
2 1
2 1
2 2
2 2
2 2
2 2
2 2
1 2
1 2
1 2
1 2
1 1
1 1
1 2
2 1
1 2
1 2
2 1
2 1
2 1
2 1
2 1
2 2
2 1
1 1
1 1
1 2
2 1
2 2
1 2
2 1
2 2
2 2
2 2
1 2
2 1
2 2
1 1
1 1
1 2
2 1
2 1
2 1
2 1
2 1
1 1
2 1
1 1
2 2
2 2
2 1
1 1
2 2
1 2
1 2
2 2
1 1
2 2
2 2
2 1
1 2
2 2
2 1
2 1
2 2
2 2
1 1
2 2
1 2
2 1
2 1
1 2
2 2
2 2
1 2
1 1
2 2
2 2
2 2
2 2
2 2
1 2
1 2
2 2
1 1
2 1
2 2
2 1
1 1
1 2
1 2
1 1
2 1
1 2
1 2
1 2
2 1
2 2
2 2
2 2
2 1
2 2
1 1
2 2
2 1
1 1
2 1
1 2
1 1
1 1
2 2
2 2
1 1
1 1
1 1
2 2
1 1
2 1
1 2
1 1
1 2
1 1
1 2
2 1
2 2
2 2
1 1
2 1
2 1
1 1
1 1
1 2
1 1
2 2
2 2
1 1
1 1
2 1
1 2
1 2
1 2
1 1
1 2
2 2
2 2
2 2
2 2
2 2
2 1
2 1
1 1
2 2
2 2
1 2
1 2
1 1
2 2
1 1
2 2
1 2
2 2
1 1
2 1
2 1
2 1
2 2
2 1
1 1
2 1
1 2
1 2
2 2
2 1
2 2
2 2
2 2
2 1
2 1
1 1
2 1
1 2
2 1
1 1
2 1
2 2
2 2
2 2
1 1
1 1
1 1
1 2
1 2
1 1
2 2
2 1
1 2
2 2
2 1
2 2
2 1
1 2
1 1
1 1
2 2
2 2
2 1
2 2
2 2
2 1
1 1
1 1
1 1
2 2
2 2
2 1
1 2
2 1
1 2
2 1
2 2
1 1
2 1
2 2
1 2
1 1
2 2
1 1
1 2
2 1
2 1
2 1
1 1
1 1
1 2
2 1
1 1
1 2
1 1
2 2
1 1
1 2
2 1
1 2
2 2
1 1
2 2
1 1
1 2
2 2
2 1
1 1
2 1
2 1
1 1
1 1
2 2
1 1
2 1
1 2
2 2
2 2
1 2
2 1
1 2
2 2
2 2
1 1
2 1
1 1
2 1
1 1
2 1
1 1
1 1
1 2
2 2
1 1
2 1
1 2
2 1
2 2
2 1
2 2
2 2
1 1
2 2
2 1
2 1
2 1
2 1
2 1
2 2
2 1
2 2
1 1
1 1
2 1
2 2
2 2
2 1
1 2
2 2
2 2
2 2
1 1
2 2
2 1
1 2
2 2
2 2
2 1
1 1
1 2
1 2
1 2
1 1
2 1
1 2
2 2
1 1
1 1
1 1
2 2
1 1
1 1
2 1
2 2
1 2
1 1
1 1
1 1
2 1
1 1
1 1
2 1
2 1
1 2
1 1
2 2
1 2
2 1
1 2
1 2
2 2
1 1
2 2
1 1
2 1
2 1
1 2
2 1
2 2
2 2
1 2
1 1
1 1
2 1
2 1
2 1
1 2
1 1
2 2
1 2
1 1
1 2
2 1
2 2
1 2
2 1
2 1
2 1
2 1
2 1
2 1
1 1
2 1
1 2
2 2
2 2
1 2
1 2
2 2
2 1
1 2
1 1
2 2
2 1
2 1
1 2
2 2
1 1
1 1
2 2
1 1
2 1
1 2
2 2
2 2
2 2
2 2
2 1
1 2
2 1
1 2
2 2
1 1
1 2
2 1
2 1
1 1
1 2
1 2
1 2
1 1
1 1
2 2
1 1
1 2
2 1
1 1
1 2
1 2
1 2
2 1
1 1
2 2
2 1
2 1
1 1
2 2
2 1
2 2
2 1
1 1
2 1
1 1
1 1
2 1
2 1
2 1
1 1
1 2
2 1
1 1
1 2
2 2
2 2
2 2
1 2
1 1
2 1
2 1
1 1
1 1
2 2
1 1
2 1
1 2
1 1
2 1
2 2
1 1
2 1
2 2
1 1
2 2
1 1
2 2
1 1
1 1
1 1
2 1
1 1
1 2
2 2
1 2
2 1
2 2
1 1
1 2
2 2
1 1
1 1
1 2
2 1
2 1
2 1
2 2
1 1
1 2
1 1
2 2
2 1
2 2
2 1
2 2
1 1
1 2
1 1
2 1
1 1
2 2
1 2
1 1
1 2
1 1
2 1
2 1
2 2
1 2
2 2
1 1
1 2
2 1
2 1
2 1
1 1
2 2
1 2
2 2
1 1
2 1
1 1
1 2
1 2
1 1
2 1
1 1
2 1
2 2
2 1
2 1
1 1
1 2
2 2
2 2
1 2
1 2
2 1
2 1
2 2
1 2
1 1
1 2
2 2
1 2
2 2
2 1
1 1
1 1
2 1
1 2
2 2
2 2
2 1
1 1
1 1
1 1
1 1
2 1
2 2
2 2
2 1
1 2
1 1
1 2
1 2
1 2
2 1
1 2
1 2
1 1
1 2
1 2
1 1
1 1
1 1
2 1
1 2
2 2
1 2
2 2
1 2
2 2
2 1
1 2
2 2
2 2
1 2
2 2
1 1
1 1
2 1
2 2
1 1
1 1
2 1
1 1
1 2
1 2
2 2
1 1
1 2
2 1
1 2
1 2
1 2
1 1
1 1
1 1
2 1
2 1
2 1
1 2
1 1
1 2
2 2
1 2
2 1
1 1
2 2
1 1
2 1
1 2
2 1
2 2
2 1
1 1
1 1
1 1
2 2
1 2
2 1
2 1
1 2
2 2
1 2
1 1
2 2
2 2
1 1
1 1
1 1
2 2
1 1
1 2
1 1
2 2
2 1
2 2
1 1
2 2
2 2
2 1
2 2
1 1
2 2
1 1
1 1
1 2
1 1
1 1
1 1
1 1
1 1
1 1
2 2
2 1
1 2
1 2
2 1
2 2
2 2
1 1
2 2
1 1
1 2
1 2
1 1
2 2
1 2
2 2
1 2
2 2
1 2
2 1
2 2
1 1
1 1
2 2
2 2
1 2
1 1
1 1
2 1
2 2
2 1
2 1
1 2
1 2
2 1
1 2
1 2
2 2
1 2
2 2
1 2
1 2
1 1
2 1
2 2
1 1
1 1
2 2
1 2
2 1
1 1
1 1
1 1
1 1
2 2
2 1
2 2
2 1
1 2
1 2
2 1
1 1
1 1
1 2
1 1
2 2
1 2
1 1
1 2
1 1
2 1
2 2
2 1
2 2
1 2
2 1
1 1
1 2
2 1
1 2
2 1
2 1
2 1
2 1
2 1
1 1
2 2
1 2
1 1
2 2
1 2
2 2
1 2
1 1
1 1
2 1
2 2
1 1
1 2
1 2
1 1
2 1
2 1
2 1
1 1
2 2
1 2
1 1
2 2
1 2
2 1
1 1
2 1
2 2
2 1
1 1
1 2
2 1
2 1
1 1
1 1
1 2
1 1
2 1
2 2
1 2
2 1
1 1
2 2
2 2
2 1
1 1
2 2
1 1
2 2
1 2
2 1
2 1
1 2
1 2
2 2
1 2
2 2
2 2
1 2
1 2
1 1
2 2
1 2
2 1
1 1
2 1
2 2
2 1
2 2
1 2
2 2
1 1
1 2
1 2
2 1
2 2
2 1
1 2
2 1
2 1
2 1
2 1
1 2
1 1
2 2
2 2
2 2
1 2
1 2
2 2
1 2
2 1
1 2
1 2
2 2
2 2
2 2
2 2
2 1
1 1
2 2
2 2
2 1
2 2
1 2
1 2
1 2
1 1
1 1
1 1
2 2
1 2
1 2
1 1
2 1
1 1
2 1
1 2
1 1
1 1
1 1
2 1
1 2
2 2
2 1
2 1
1 2
1 2
2 1
1 1
2 2
1 2
2 2
1 2
2 1
2 1
1 1
2 1
1 2
1 1
1 1
1 1
1 2
2 1
1 2
2 1
2 2
1 2
1 2
2 1
2 2
2 1
2 1
1 2
2 1
2 1
2 2
2 1
2 2
2 2
1 1
2 2
1 1
2 1
2 2
1 1
2 2
1 1
1 1
2 1
2 1
1 2
1 1
1 1
1 2
2 1
1 2
1 1
1 1
1 2
2 1
2 1
1 1
1 1
1 2
2 1
1 1
1 1
2 2
1 1
2 1
2 1
1 2
1 1
2 1
2 2
2 1
1 2
2 2
2 1
2 1
1 1
2 1
2 1
1 2
1 1
2 2
2 2
2 1
2 2
2 2
2 1
2 1
2 1
1 2
1 1
1 1
2 1
2 2
2 2
1 1
2 2
2 2
1 1
1 1
2 1
1 1
2 1
1 2
1 1
1 2
2 2
1 2
1 1
1 1
2 2
1 1
2 1
2 1
2 1
2 1
2 1
2 1
1 2
1 2
2 1
1 1
2 2
2 2
1 2
2 1
2 2
1 2
2 1
2 2
2 2
1 1
2 2
2 2
2 2
2 2
1 2
1 2
2 1
2 1
1 1
2 2
2 2
1 1
1 1
2 2
1 2
1 1
1 2
2 2
2 2
1 1
1 2
2 1
1 2
2 1
2 1
2 1
2 2
1 2
2 1
2 2
2 1
1 2
1 2
2 2
2 1
2 2
1 2
2 2
2 2
1 2
2 1
1 2
1 2
2 2
1 2
2 1
2 1
2 1
2 1
2 1
2 1
1 2
1 2
1 2
2 2
2 2
2 2
1 1
2 2
1 2
2 1
1 1
1 1
1 2
2 1
2 1
1 2
1 2
2 1
1 2
2 2
1 1
1 1
2 1
1 2
1 2
2 1
2 1
2 1
2 1
1 2
2 2
2 2
1 2
1 1
2 1
2 1
2 2
2 2
1 2
2 2
1 2
2 2
1 1
1 2
2 1
1 2
2 1
2 2
2 2
1 2
1 1
2 1
2 1
1 1
1 2
2 2
2 1
2 2
1 1
1 2
2 2
1 2
1 1
1 1
1 2
2 1
1 2
2 1
2 2
2 2
2 2
2 1
2 2
2 2
1 1
1 2
1 2
2 1
2 1
2 1
1 1
1 1
2 2
1 1
2 1
1 2
1 2
1 1
2 1
1 2
2 2
1 1
1 2
1 2
1 1
2 2
2 1
2 1
1 2
2 2
1 1
1 2
1 1
1 1
2 1
1 1
1 2
1 1
1 2
1 2
2 2
1 1
1 2
1 2
1 2
2 1
1 2
2 1
1 2
2 2
2 1
2 2
2 2
1 1
1 2
2 1
2 1
1 1
1 2
2 2
2 1
2 2
2 1
2 2
2 2
1 1
1 1
2 1
1 2
1 2
1 1
2 2
2 1
2 1
1 2
1 2
2 2
1 2
1 2
1 1
2 1
1 1
1 2
1 1
1 2
2 2
1 1
2 2
1 1
2 1
2 1
2 2
1 1
1 1
2 1
1 2
1 2
2 1
2 1
1 1
1 1
2 1
2 1
2 2
2 1
1 1
1 1
2 1
1 1
2 2
2 1
1 1
1 2
2 2
1 2
1 1
2 2
1 2
2 1
1 2
2 1
2 2
2 2
2 2
1 1
2 1
2 1
2 1
1 2
2 1
1 2
1 2
1 1
1 2
2 1
1 1
1 1
1 1
2 1
1 1
1 1
1 2
1 1
1 2
1 2
1 2
1 1
1 1
1 2
1 2
2 1
1 2
2 1
1 2
1 1
1 2
2 2
2 2
2 2
2 2
2 1
1 1
1 1
2 1
2 1
1 1
2 1
2 2
2 2
2 2
1 2
1 2
2 1
1 2
1 2
1 1
2 1
2 1
1 2
1 2
1 1
2 2
2 2
1 2
2 1
2 2
2 1
2 2
2 1
2 1
1 1
1 1
2 1
1 2
2 2
1 2
1 1
1 1
2 1
2 2
1 2
2 2
2 1
1 2
1 2
1 1
2 2
1 1
1 1
2 1
1 2
1 2
1 1
1 1
2 1
1 2
1 1
1 1
1 1
1 1
2 1
2 1
1 2
1 2
1 1
2 2
2 2
1 2
2 2
1 2
1 2
1 2
1 2
2 2
1 1
1 1
1 1
1 2
1 1
1 2
1 1
2 2
1 1
2 1
2 2
2 1
2 1
1 1
2 1
2 1
2 2
1 1
1 2
1 2
2 1
1 1
1 1
1 2
1 1
2 2
1 1
1 1
2 1
1 2
1 1
1 2
2 2
1 2
1 2
2 2
1 2
1 2
2 2
1 1
1 2
2 2
1 1
1 2
1 1
2 1
2 1
1 2
2 2
1 2
1 2
1 1
1 2
2 1
1 2
1 1
1 2
2 1
2 2
2 2
1 1
2 2
1 1
1 2
1 1
1 2
1 1
2 2
2 2
1 1
2 1
2 1
1 2
2 1
1 2
2 2
1 2
1 1
2 2
2 2
2 2
1 2
1 2
1 2
2 2
2 2
2 2
2 2
1 1
2 2
2 2
1 2
2 1
2 1
1 1
1 2
1 1
1 1
2 2
2 2
2 1
2 2
2 1
1 2
2 1
2 2
1 1
2 2
2 2
2 2
1 1
1 1
1 1
2 2
1 2
1 1
1 1
1 1
1 1
2 1
2 2
1 2
2 1
2 1
2 2
2 1
2 1
2 1
1 1
1 2
2 1
1 2
2 2
1 1
1 2
1 1
1 2
1 1
1 2
1 1
1 1
2 2
1 1
1 1
1 2
1 2
1 1
2 2
1 2
2 2
1 1
2 1
2 2
1 2
1 2
2 1
2 2
1 1
1 2
1 2
1 2
1 2
2 2
1 2
2 1
2 2
1 1
1 1
1 1
1 1
1 1
2 2
2 2
2 1
2 2
1 2
2 2
1 2
2 1
1 1
2 2
1 1
1 1
2 1
1 2
2 2
2 1
1 2
1 1
1 1
1 2
2 2
2 2
1 2
2 1
2 2
1 1
1 2
2 2
2 1
2 2
1 1
2 1
2 2
1 1
1 2
2 2
2 2
1 1
2 1
1 2
1 2
1 1
1 1
1 2
2 2
1 1
1 2
2 1
1 1
1 1
1 1
2 1
2 2
2 1
2 2
1 2
2 2
2 1
1 2
1 2
2 1
2 1
2 1
1 2
1 1
2 1
2 2
2 1
1 2
2 1
2 1
1 1
2 2
1 1
1 2
2 1
1 2
2 1
2 1
2 1
1 1
1 2
2 2
2 1
1 2
2 2
1 1
2 1
1 2
1 2
2 1
2 1
1 1
1 2
2 2
1 1
1 2
1 1
1 1
1 1
2 1
2 1
2 2
2 1
1 1
1 1
1 1
2 1
2 2
1 1
1 2
1 2
2 2
2 1
1 2
1 1
2 1
1 2
2 1
1 1
2 1
1 2
1 1
2 1
2 2
1 1
1 2
2 1
2 2
2 2
2 2
1 2
2 2
2 1
2 2
1 2
1 2
2 2
1 2
2 1
1 2
2 1
2 2
2 2
1 1
1 1
2 2
2 2
2 2
2 2
1 2
2 1
2 2
2 2
2 2
1 2
2 2
2 2
1 2
1 2
2 2
2 2
2 1
2 1
2 2
1 2
1 2
2 2
2 2
2 2
2 2
1 2
2 2
1 1
2 2
2 2
2 1
1 1
2 1
1 2
1 2
1 1
2 1
2 1
2 1
2 2
2 2
1 2
2 1
1 1
2 2
2 2
1 2
2 1
2 2
1 1
2 2
1 1
2 2
2 1
1 1
1 1
2 2
1 1
2 2
1 2
2 2
2 1
2 1
1 1
2 2
2 1
1 2
2 2
2 1
1 2
2 2
1 2
1 1
1 2
2 1
1 2
1 2
2 1
1 2
1 1
2 2
2 2
2 2
2 2
1 2
2 1
2 1
2 1
2 2
2 1
1 2
2 2
2 2
2 1
2 2
2 1
1 1
2 2
2 1
1 2
2 1
1 1
2 2
2 2
1 1
2 2
2 1
2 2
2 2
1 1
2 1
1 2
1 2
1 1
2 1
2 2
1 1
2 2
2 1
2 2
2 1
2 1
2 2
1 2
2 1
2 1
1 1
1 2
1 2
2 2
2 1
1 2
2 2
1 2
1 2
2 2
2 1
1 2
1 2
1 1
1 2
2 1
1 1
2 2
1 1
1 1
1 1
2 2
1 2
1 1
1 2
2 2
2 1
1 1
2 1
2 2
2 1
1 2
1 2
2 1
2 2
1 1
1 2
1 2
2 2
2 1
2 1
2 2
1 1
1 2
2 2
2 2
2 2
2 2
2 1
2 1
2 1
1 1
1 2
2 1
2 1
1 2
1 2
2 1
2 1
1 2
2 1
2 2
1 1
1 2
1 2
1 1
1 1
1 2
2 2
1 2
2 2
1 1
2 1
2 2
2 1
1 2
1 2
1 2
2 1
2 2
2 2
1 1
2 1
2 1
1 2
2 2
2 2
2 2
2 1
2 2
1 2
2 1
2 2
1 1
2 1
1 2
1 2
1 2
2 2
1 2
2 2
1 1
2 1
1 2
2 2
1 2
2 1
2 1
1 2
2 1
1 2
2 2
2 2
2 1
2 1
2 1
2 2
1 1
1 2
1 1
1 1
1 1
2 1
2 1
1 2
2 1
1 2
2 2
2 2
1 1
2 2
2 1
1 1
2 2
1 2
1 1
2 1
1 1
2 1
2 2
2 2
2 2
2 1
2 1
1 1
1 1
2 2
2 2
2 2
1 2
1 2
1 2
1 2
1 1
1 1
2 1
1 1
2 1
1 1
2 2
2 2
1 1
2 1
2 2
1 2
2 2
2 1
2 2
1 2
1 1
2 2
1 1
1 1
2 1
1 1
1 1
2 2
1 1
2 2
2 1
2 2
1 1
1 1
2 1
2 2
2 2
2 2
2 2
1 2
2 1
2 1
1 2
2 2
2 2
2 1
1 2
1 2
2 2
2 2
1 2
1 1
2 2
2 2
1 1
2 1
1 2
1 2
2 2
1 2
2 1
1 1
1 2
1 1
1 2
1 2
1 1
1 1
1 2
1 2
2 2
1 2
1 2
2 1
1 2
1 1
1 2
2 2
2 2
2 1
1 2
2 2
1 2
1 2
2 2
1 2
1 2
1 1
2 1
1 2
2 1
2 2
1 1
1 1
1 1
2 2
1 2
1 2
1 2
1 1
1 1
1 1
2 1
1 2
1 2
1 2
1 2
1 2
1 2
1 2
1 1
2 1
2 2
1 2
1 1
2 1
2 1
1 2
2 2
1 1
2 1
2 1
2 1
1 1
2 1
1 1
2 2
1 1
2 1
1 1
1 2
2 2
1 1
2 1
2 2
2 2
2 1
1 2
1 1
1 2
1 2
2 2
2 2
1 2
2 2
2 1
1 2
2 1
1 1
1 2
1 1
1 2
1 1
1 1
2 2
1 1
2 2
2 2
2 1
2 1
2 2
2 2
1 2
2 1
2 1
1 1
2 1
1 2
2 1
2 2
2 2
1 1
2 1
2 1
1 1
2 2
2 2
1 2
1 1
2 2
2 2
2 1
2 1
1 1
2 2
1 1
2 1
1 1
2 2
2 1
2 2
2 1
2 2
1 1
2 1
2 1
2 1
1 1
1 2
2 1
2 2
1 2
2 2
2 2
2 1
1 2
2 2
2 1
1 1
2 1
2 2
2 1
1 2
2 1
2 1
1 1
1 1
2 1
1 2
1 2
1 1
1 1
2 1
2 1
2 2
1 1
1 2
1 1
1 2
2 1
1 2
1 1
2 1
2 1
1 2
2 2
1 1
2 1
2 2
1 1
1 1
2 2
1 1
1 1
1 1
1 2
2 2
1 1
2 1
2 1
1 2
1 1
2 1
2 1
2 2
2 1
1 2
2 2
1 2
1 2
2 1
2 2
1 1
2 2
1 1
2 1
1 2
2 2
1 2
1 1
2 1
1 1
2 1
2 1
1 2
2 1
1 2
1 2
1 2
1 2
1 2
1 2
1 1
1 2
1 2
1 1
2 1
2 1
1 1
1 2
2 1
2 1
1 2
2 2
2 2
1 2
1 1
2 1
1 2
1 2
2 2
1 2
1 2
2 2
2 1
2 1
2 2
1 2
2 2
1 1
1 2
1 1
1 2
1 1
1 2
2 1
2 1
2 2
2 1
1 1
2 2
1 2
1 2
2 2
2 1
1 2
2 2
1 1
1 2
1 2
1 1
1 1
1 2
2 1
2 1
2 2
2 1
1 1
1 1
1 2
1 2
1 1
1 1
2 2
1 2
1 2
1 1
2 1
2 1
1 2
1 2
1 1
2 1
1 1
2 1
2 2
2 2
1 2
2 1
1 1
2 1
2 1
2 2
2 1
1 1
2 1
2 1
1 1
1 2
2 1
2 1
2 2
2 2
2 1
2 1
2 1
2 2
1 1
1 1
1 1
1 2
1 1
1 2
2 1
1 1
1 2
1 2
2 1
2 2
2 2
2 1
1 2
1 1
2 1
1 1
2 1
2 1
1 2
1 2
1 2
2 2
2 1
1 2
2 1
1 1
1 2
2 2
1 2
2 2
1 1
1 1
1 1
2 1
2 2
2 1
1 1
2 1
2 1
2 2
1 1
2 2
2 1
1 2
1 2
2 1
2 1
2 1
1 2
1 2
2 1
2 2
1 1
2 2
2 1
2 1
1 1
2 1
1 2
2 2
2 2
2 1
1 2
1 2
2 1
2 1
1 2
1 1
1 2
2 2
2 2
1 1
1 1
1 1
1 2
2 2
2 1
2 1
1 1
2 2
1 2
1 1
1 1
2 2
1 2
2 2
2 2
2 1
2 2
1 2
2 2
2 2
2 2
1 2
2 2
1 1
1 2
2 2
2 2
1 2
1 2
1 2
2 2
1 1
1 2
2 1
1 2
1 1
2 1
2 2
1 1
1 1
2 1
2 2
2 1
1 2
1 2
2 2
1 2
1 1
1 1
1 1
2 2
2 1
2 1
1 2
1 2
1 2
1 1
1 1
2 2
2 2
2 2
1 2
1 2
2 1
2 1
1 1
2 2
2 2
1 2
1 1
1 1
2 2
2 2
1 1
2 2
1 2
2 1
2 2
2 1
2 2
2 2
1 1
1 2
2 1
2 1
1 2
2 1
2 1
2 1
2 1
2 2
2 1
2 2
2 1
1 1
2 2
2 2
2 2
2 2
1 2
1 1
2 2
1 2
1 1
2 2
1 1
1 2
1 1
1 1
1 2
2 1
2 2
2 2
2 1
1 1
1 1
2 2
1 1
2 2
2 1
2 2
1 1
2 1
2 2
1 2
2 2
1 1
1 1
2 2
1 2
2 2
1 2
2 1
1 2
1 2
1 2
1 2
1 1
1 1
2 2
2 1
2 1
1 2
1 2
1 1
1 1
2 2
2 1
2 2
2 1
1 2
2 2
2 2
2 2
1 1
1 2
2 2
1 2
1 2
1 1
2 2
1 1
1 2
2 2
1 2
1 2
2 1
1 1
2 2
1 1
1 1
2 1
2 2
1 1
1 2
1 2
1 1
2 2
1 2
1 1
2 1
2 1
2 1
1 2
2 1
2 2
2 1
2 2
1 2
1 1
2 2
1 1
2 2
1 1
1 1
2 1
1 2
2 2
2 2
2 2
1 2
1 2
2 2
1 2
1 2
2 2
1 1
1 2
2 1
2 1
1 1
2 2
2 1
1 1
2 1
2 2
1 2
1 2
1 2
1 1
2 2
2 2
1 1
2 2
1 1
2 1
2 1
2 2
1 2
2 2
2 2
2 1
2 2
2 1
2 1
1 1
1 2
1 1
2 2
2 1
2 2
1 1
1 1
2 1
1 1
2 2
1 2
2 1
1 1
1 2
1 1
1 1
2 1
2 1
2 1
1 2
1 1
2 1
1 2
1 1
1 2
1 2
1 2
1 1
1 2
2 2
1 2
1 2
2 1
2 1
1 1
1 2
1 1
2 1
1 2
1 1
1 1
1 1
2 2
2 2
1 2
2 1
1 2
1 2
2 1
2 1
2 1
2 1
1 1
1 1
1 1
2 1
2 1
2 1
2 1
1 2
2 1
1 2
2 2
1 1
1 1
2 2
1 1
2 1
2 2
1 1
1 1
1 2
2 1
1 2
1 2
2 2
1 2
2 2
2 1
2 1
1 1
2 1
2 2
2 1
2 2
2 2
2 1
2 2
1 1
2 2
1 1
1 1
1 1
1 1
1 2
1 1
1 1
2 2
1 2
2 2
1 2
1 1
2 2
2 1
1 2
2 1
1 2
1 2
1 2
1 2
1 2
2 2
2 2
2 2
1 1
1 1
2 2
1 1
1 2
1 1
2 1
2 2
1 1
1 1
2 2
2 2
1 2
1 2
2 1
1 2
1 2
1 1
1 2
1 1
2 1
2 1
2 2
2 2
1 2
1 2
1 1
1 2
1 1
2 1
1 1
2 1
2 1
2 1
1 1
2 2
2 1
1 2
1 1
1 2
2 1
1 2
2 1
1 2
1 2
2 1
1 1
1 2
1 2
2 1
2 2
2 1
2 1
1 2
2 2
2 1
2 2
1 2
2 2
1 1
2 1
2 1
2 2
1 2
1 2
2 2
1 1
1 1
2 2
1 1
1 2
2 1
2 2
1 1
1 1
2 1
1 2
2 1
1 1
2 2
1 1
2 2
1 2
1 1
1 1
2 2
1 1
1 2
2 2
1 1
1 1
2 2
1 2
1 2
2 1
1 2
1 2
2 1
2 1
2 2
2 2
1 2
2 1
1 2
1 2
2 2
1 2
1 2
1 1
2 2
2 2
1 2
1 1
1 1
2 2
1 2
1 2
1 1
1 2
2 2
1 2
2 2
2 1
1 1
2 2
2 2
1 1
2 2
1 2
1 2
1 1
2 1
2 1
1 1
2 2
2 2
1 1
2 1
2 2
1 1
1 2
2 2
2 2
2 1
1 2
2 1
2 1
2 2
1 1
2 2
1 1
1 2
2 2
1 2
1 2
1 1
2 2
2 1
1 2
1 2
2 2
2 2
1 1
1 2
1 1
1 1
1 2
1 2
2 2
1 1
1 1
2 2
1 1
2 1
1 2
2 1
2 1
1 1
2 1
2 2
1 2
1 2
2 1
1 1
2 2
2 1
1 1
2 1
2 1
2 1
2 2
1 1
1 2
2 2
1 2
2 1
1 1
1 2
2 1
2 2
1 1
2 2
2 1
1 2
1 2
1 2
1 2
2 2
1 1
2 2
2 1
1 1
1 1
2 2
2 1
2 2
2 1
2 1
1 1
1 2
2 1
1 1
1 1
2 1
1 2
2 1
2 1
2 1
1 2
1 1
2 1
2 2
2 2
1 1
2 2
2 1
2 1
2 1
1 2
1 2
1 1
1 2
1 1
1 1
2 2
2 1
2 2
1 1
2 1
2 2
2 1
2 2
1 1
1 1
1 2
2 1
1 1
1 1
2 2
2 2
1 1
1 2
1 1
2 2
2 2
2 2
1 1
2 1
2 2
1 1
2 2
2 2
1 1
2 1
2 1
1 1
1 1
2 1
1 1
1 1
2 2
1 2
1 1
2 1
2 2
2 1
2 2
1 2
2 2
2 1
1 2
1 2
1 2
1 1
2 2
2 2
2 2
2 2
1 1
2 2
2 1
1 2
2 2
1 2
2 1
2 2
2 1
2 2
1 2
2 2
2 2
2 1
2 2
1 2
2 2
2 1
2 1
1 1
1 2
1 1
1 1
2 1
1 1
1 1
1 2
1 2
2 1
1 1
2 2
1 2
1 2
2 1
1 2
1 2
2 2
1 1
1 1
2 2
1 1
1 2
1 1
2 2
1 1
1 2
1 1
1 1
1 1
1 2
1 2
1 2
1 1
2 1
2 2
1 2
2 1
2 2
2 2
2 1
1 2
2 1
2 1
2 2
2 1
2 1
1 1
1 2
2 1
2 2
1 2
1 2
1 1
1 2
1 1
2 2
1 1
1 1
1 2
2 1
1 2
2 1
2 2
2 1
2 1
1 1
1 1
1 2
2 1
1 2
2 1
1 1
2 2
1 2
1 2
1 2
1 2
1 2
2 1
1 2
2 2
1 1
2 2
2 2
1 1
2 2
1 1
1 2
2 1
2 2
1 2
1 2
1 1
2 1
1 2
1 2
2 2
1 1
1 2
2 2
2 2
1 1
2 2
2 2
1 2
2 1
2 2
2 1
1 2
1 1
2 1
1 2
1 1
1 1
1 1
1 1
1 2
2 2
1 1
2 2
1 2
2 2
1 1
1 1
2 2
1 2
2 2
2 2
1 2
1 2
2 1
1 2
2 1
2 1
1 2
2 1
1 1
2 1
1 2
1 1
1 2
1 2
2 2
1 2
1 2
1 2
2 1
2 1
1 1
1 1
1 1
1 2
1 2
1 1
1 1
2 2
2 1
1 1
2 1
1 1
1 1
2 1
2 1
1 2
2 1
2 1
1 1
1 1
2 1
2 1
2 2
1 2
1 1
2 2
2 1
1 2
1 2
2 1
1 2
1 2
2 1
1 2
2 1
1 1
1 2
1 1
2 1
2 2
2 1
2 1
2 2
1 2
2 1
1 2
1 2
1 2
2 2
2 2
2 2
1 2
1 2
2 1
2 1
1 2
2 2
1 2
1 2
2 2
1 2
1 2
2 1
1 2
2 1
1 2
2 2
2 2
2 1
2 2
2 2
2 2
1 2
2 2
2 2
1 1
2 1
2 1
1 1
2 1
1 2
1 2
1 1
2 2
2 2
2 2
2 1
2 2
2 2
1 2
2 1
2 2
1 2
1 1
1 2
2 2
1 1
1 2
1 2
1 2
2 1
2 1
1 2
1 2
1 1
1 2
2 2
1 2
2 2
2 2
2 1
2 1
1 2
1 1
1 1
1 1
2 1
2 1
1 1
2 1
1 2
2 1
1 1
1 2
2 2
1 1
2 1
1 2
2 1
2 2
1 1
2 2
2 2
2 2
1 1
2 2
2 2
2 2
1 1
1 1
1 1
2 2
2 2
2 1
2 1
1 2
2 2
1 2
1 2
1 2
2 1
1 1
1 2
1 2
2 2
2 1
1 2
2 2
1 2
1 2
1 2
2 1
2 1
2 2
1 1
2 2
2 2
1 2
1 1
2 2
2 1
1 1
2 1
1 2
1 2
2 2
1 2
2 1
2 2
1 1
2 2
1 1
1 1
1 1
2 1
2 2
2 2
1 2
2 2
2 1
1 2
1 1
1 2
2 1
1 1
1 1
2 2
1 1
1 1
1 2
1 1
2 2
2 1
1 1
1 2
2 1
1 1
1 2
1 1
2 1
2 2
1 2
2 2
1 2
1 1
2 2
2 1
1 1
2 2
1 1
1 2
1 2
1 1
1 2
1 2
1 2
1 1
2 2
2 2
2 2
1 1
1 2
1 2
1 1
2 1
2 1
1 1
2 1
2 2
2 1
2 2
1 1
2 2
2 2
1 2
1 2
2 1
1 1
2 2
2 2
2 2
2 2
1 1
1 2
1 2
1 2
2 1
1 2
1 2
2 2
1 2
1 2
2 2
1 2
1 2
1 2
1 1
2 2
2 2
2 2
1 1
2 1
1 1
2 2
2 2
1 2
1 1
2 1
2 2
2 1
1 2
1 1
1 2
2 2
2 2
1 2
1 1
2 2
2 1
1 2
1 1
1 1
1 1
1 2
2 1
1 2
1 1
2 1
2 1
1 1
1 2
1 1
1 1
1 2
2 1
2 2
2 1
1 2
2 1
2 2
2 2
2 1
2 2
2 2
1 2
2 2
1 1
1 1
2 2
2 1
2 2
2 2
2 1
2 2
1 1
2 1
1 2
1 1
1 2
2 1
1 1
2 2
2 1
1 2
1 2
2 2
1 2
1 2
2 2
1 2
2 2
2 1
1 1
1 1
2 1
2 1
2 1
2 2
1 1
1 1
2 1
1 2
1 2
2 1
2 1
1 1
2 1
2 1
1 1
2 1
2 1
1 1
1 2
1 1
2 1
1 1
1 2
1 2
1 2
2 2
2 2
1 1
2 1
1 2
2 2
1 2
2 1
2 2
2 2
1 1
2 1
2 2
1 1
2 2
2 1
1 1
2 1
2 1
1 1
1 1
1 2
2 2
1 2
2 2
2 2
2 1
2 2
1 2
2 1
1 2
2 2
1 2
2 1
1 1
1 2
2 1
1 2
1 1
1 2
1 2
2 2
1 1
2 2
2 1
1 2
1 1
2 1
2 1
1 1
1 1
2 1
2 2
1 1
2 2
2 2
2 2
1 1
1 2
2 1
2 1
2 2
2 1
2 1
1 2
2 2
1 1
2 1
1 1
1 1
1 2
2 1
2 1
2 1
2 1
2 2
1 2
1 1
1 1
2 2
2 2
2 1
2 1
1 2
1 1
2 1
1 2
2 2
1 1
2 2
2 2
2 2
2 1
2 1
1 2
2 2
1 1
1 2
1 2
2 1
2 1
1 2
2 2
2 1
1 2
1 2
1 1
1 2
2 1
2 2
2 1
2 1
2 2
2 1
1 1
1 2
2 2
1 2
1 2
1 2
1 1
1 2
1 1
1 1
2 1
2 1
2 1
2 1
2 1
1 2
2 1
1 2
1 2
1 1
1 1
1 2
2 1
1 1
2 1
2 1
2 1
1 1
2 1
1 2
2 2
2 1
1 1
2 1
2 2
1 2
2 2
1 1
1 2
2 2
2 1
2 2
2 2
1 2
1 2
1 1
2 2
1 1
1 1
1 2
1 2
1 2
2 1
1 2
2 2
2 1
1 1
1 2
2 1
1 2
1 2
1 1
1 2
2 1
1 1
1 1
2 1
2 2
2 1
2 2
1 1
2 1
2 1
1 1
2 1
1 1
2 1
1 1
1 2
1 2
1 1
2 1
1 2
2 1
1 1
2 2
1 1
1 1
1 2
2 2
2 2
2 1
1 2
1 1
1 2
1 2
1 2
1 2
1 2
2 1
2 1
1 2
1 2
2 1
2 1
2 2
1 2
1 1
2 2
2 2
2 2
2 2
1 2
1 2
2 2
1 1
1 2
1 2
1 1
1 1
2 2
2 1
2 1
2 1
2 2
1 2
1 2
1 2
2 2
2 1
1 1
1 1
2 2
2 2
1 1
2 2
1 1
1 1
1 2
1 1
2 1
2 2
1 2
1 2
2 1
2 1
2 1
2 2
2 1
1 2
1 2
2 2
2 1
2 1
2 2
1 1
1 2
1 1
2 2
2 1
1 2
2 1
1 1
2 2
1 2
2 2
2 1
2 1
2 2
1 1
1 1
2 1
2 1
2 2
1 1
1 2
1 1
2 2
2 2
1 1
1 1
2 1
2 1
1 1
1 1
2 2
1 2
2 2
2 1
2 2
2 2
1 1
2 2
2 1
2 2
1 2
1 2
2 1
1 2
2 2
1 2
1 1
1 1
2 1
2 1
1 1
2 1
2 1
1 2
2 2
2 1
2 2
1 1
2 2
2 1
2 1
1 1
1 1
2 1
1 1
2 2
1 1
2 1
1 1
2 2
1 1
2 1
2 1
2 2
1 2
1 1
2 1
1 1
1 1
2 2
1 1
1 1
2 1
1 1
1 2
2 1
1 1
2 2
2 2
2 2
1 1
2 2
1 1
1 1
2 2
1 1
2 2
2 1
1 1
1 2
1 1
1 2
1 1
1 1
1 2
2 2
2 2
2 1
1 2
2 2
1 1
1 1
1 2
2 2
1 2
1 2
2 1
1 2
2 2
1 1
2 1
1 2
2 1
1 2
2 1
1 1
2 2
1 2
1 2
2 2
2 1
1 2
1 1
1 1
2 1
1 2
2 1
1 2
1 1
1 2
2 1
1 1
1 2
2 2
1 2
1 1
1 1
2 1
2 2
1 2
2 1
1 1
2 1
1 2
2 2
2 1
1 1
2 1
2 2
1 2
1 1
2 2
2 2
2 2
1 2
2 1
2 2
2 1
2 1
1 2
2 1
1 2
2 2
1 1
1 1
2 1
2 2
2 1
1 2
1 1
2 1
2 2
1 2
2 2
1 1
1 1
1 2
2 2
1 1
1 1
2 2
1 2
1 2
2 1
2 1
1 2
1 2
2 1
2 1
2 2
2 1
1 1
2 2
2 1
2 2
1 2
2 2
2 2
2 1
1 1
1 2
2 2
2 1
1 1
1 2
2 1
1 2
2 1
1 2
1 2
1 1
2 2
1 2
1 2
2 2
1 1
1 1
1 1
2 1
2 1
2 2
1 2
1 1
1 2
2 2
2 2
2 2
1 1
1 2
2 1
1 2
2 1
1 2
1 2
2 1
2 2
1 1
2 1
1 1
1 2
1 2
2 1
1 1
1 1
2 1
2 2
1 1
2 1
2 2
2 2
1 1
2 2
1 2
2 2
1 2
2 2
1 1
1 2
2 1
1 1
1 2
2 2
1 1
2 2
2 2
1 2
2 1
1 2
1 2
2 1
2 1
2 1
1 2
1 2
1 2
2 2
2 2
2 1
1 1
1 2
1 2
1 1
1 2
2 2
2 1
2 1
2 1
2 1
2 2
2 1
1 2
2 2
2 1
2 1
2 1
1 1
2 2
1 1
2 2
1 1
2 2
1 2
2 2
1 1
2 2
1 2
1 1
1 1
1 1
2 1
2 1
2 1
1 2
2 1
1 1
2 1
2 1
1 2
1 1
2 2
2 1
2 2
2 1
1 1
2 1
2 2
1 1
1 2
2 2
2 2
1 1
1 1
1 2
2 1
1 2
2 1
2 1
1 2
2 2
2 2
1 2
1 1
2 2
1 1
2 2
1 1
2 1
2 1
2 1
2 2
1 2
2 1
2 1
1 1
1 1
1 1
2 2
2 2
1 2
1 1
1 1
2 2
2 1
1 1
2 2
2 2
1 2
1 2
1 2
2 1
2 1
2 2
1 2
2 2
1 2
2 1
1 2
2 1
2 2
2 1
1 1
2 1
1 2
2 2
2 1
1 1
1 2
1 1
1 2
2 2
1 2
2 2
1 1
1 1
2 2
2 1
1 1
1 2
2 1
2 1
2 1
1 2
2 1
2 2
1 2
2 2
1 2
2 1
1 1
2 1
1 1
1 2
1 2
1 2
1 2
1 2
2 1
2 1
2 1
1 2
2 2
2 2
1 1
1 1
2 1
2 2
2 1
2 1
1 2
2 1
2 2
2 1
1 1
2 2
2 2
2 2
1 2
1 2
1 2
2 2
2 2
1 2
1 1
1 2
2 2
2 2
1 1
1 2
2 1
2 2
1 2
1 1
2 2
1 1
1 2
1 2
2 1
1 1
2 2
2 1
2 1
2 2
1 2
1 1
2 1
2 2
2 1
2 2
1 2
2 1
2 1
1 1
1 2
2 2
2 2
1 1
2 2
2 1
2 2
2 2
1 1
1 2
1 1
2 2
1 1
2 2
1 2
2 1
1 1
1 2
2 1
2 2
2 1
2 2
2 1
1 1
2 1
1 1
2 2
1 1
1 2
2 2
2 1
1 2
1 2
1 1
2 1
2 1
2 2
2 1
1 2
2 2
1 1
2 2
2 1
1 1
1 2
2 1
2 2
1 1
1 2
1 1
1 2
1 2
1 1
1 2
1 2
1 2
2 1
2 2
1 2
2 2
1 1
1 1
1 2
2 1
1 2
2 1
2 2
1 1
1 1
2 2
2 2
2 1
1 1
2 1
1 1
2 2
2 1
2 1
1 2
2 2
2 2
2 1
1 1
1 1
2 2
1 2
1 2
1 1
2 2
1 1
1 1
1 2
1 1
1 1
1 1
1 1
2 2
2 2
1 1
1 1
1 1
2 1
1 2
2 1
2 1
2 2
2 1
1 1
2 2
2 1
1 2
1 1
1 2
1 1
1 1
1 2
1 2
2 1
1 1
2 2
1 2
2 1
1 2
1 1
2 1
1 1
2 1
2 2
2 2
1 2
1 2
1 2
1 1
2 2
2 2
1 1
1 2
1 1
1 1
2 1
2 1
2 1
1 1
1 1
1 2
2 1
2 1
1 2
1 2
2 2
2 1
2 2
2 2
1 2
1 1
1 2
2 1
2 1
1 1
1 1
1 1
1 1
2 1
1 1
1 1
2 2
1 2
1 1
1 1
2 2
2 2
2 1
1 2
1 1
2 2
1 2
2 2
1 2
1 1
1 2
1 2
1 1
1 2
1 2
2 2
2 1
1 1
1 2
2 2
1 1
1 1
1 1
1 1
2 1
1 1
2 2
1 1
2 1
1 1
2 1
2 2
2 2
2 1
1 2
2 2
2 1
2 1
2 1
1 1
1 2
2 2
1 2
2 2
1 1
1 2
2 2
2 2
2 1
2 2
2 1
1 2
1 1
2 1
2 2
1 2
1 1
2 2
1 2
2 2
2 2
1 1
1 1
2 1
1 2
1 2
1 1
2 1
1 2
1 2
2 1
2 1
1 2
1 2
1 1
2 1
1 2
2 2
2 1
1 2
1 2
2 2
2 1
2 2
1 2
1 1
2 1
2 2
2 2
1 2
1 1
2 2
1 2
1 2
2 1
2 2
2 1
1 2
2 1
1 2
1 2
1 2
2 1
1 1
1 1
2 2
2 2
1 1
1 2
1 2
1 2
1 1
2 1
1 1
1 1
1 1
2 1
2 2
1 1
1 2
1 1
2 1
2 1
2 1
1 2
1 2
2 1
2 2
2 2
1 1
2 1
1 2
1 1
2 2
1 2
2 2
2 1
2 2
2 1
1 2
2 1
2 2
2 2
2 1
1 1
1 2
2 1
1 1
2 1
2 2
1 1
2 2
2 1
2 2
2 2
1 1
1 2
1 1
1 2
1 1
2 1
1 1
1 2
1 1
1 2
1 1
1 2
2 1
1 1
2 1
1 2
2 1
1 2
2 2
2 2
2 1
1 2
1 2
1 1
2 1
2 1
1 2
1 1
1 2
2 2
1 1
1 2
1 1
1 2
1 1
1 1
2 2
2 2
2 1
1 2
1 1
1 1
2 1
2 1
2 2
1 1
1 1
1 2
2 2
2 2
2 2
1 2
1 2
1 2
1 1
2 1
1 1
1 1
1 2
2 1
1 1
2 1
1 2
2 1
1 2
2 1
1 1
1 2
1 1
2 1
1 1
2 1
2 2
1 1
2 1
2 2
2 1
2 2
1 1
1 1
1 2
2 2
2 1
2 1
2 1
2 2
1 2
2 2
2 1
1 2
2 2
1 2
2 2
2 2
2 2
1 1
1 1
1 2
1 2
1 2
1 1
2 2
1 1
1 2
2 1
1 1
1 1
2 1
1 1
2 1
1 2
2 1
1 1
1 2
1 1
1 2
1 2
2 2
1 1
1 1
1 1
2 2
1 1
2 2
2 1
1 1
1 1
2 2
2 1
2 2
2 2
2 2
2 2
1 1
2 1
2 2
1 1
1 1
1 1
1 1
2 1
2 2
2 2
2 1
2 2
2 2
1 2
2 1
2 1
1 1
1 1
1 1
2 1
2 1
1 1
1 1
1 2
2 1
1 1
1 2
1 2
2 1
2 2
2 2
1 1
2 1
1 2
2 2
2 1
1 1
2 2
2 2
1 2
1 2
1 1
2 1
1 1
2 2
2 1
1 2
2 1
2 2
2 2
1 2
1 1
1 1
2 2
2 1
2 1
2 1
2 2
2 2
1 1
2 1
2 1
1 1
1 2
2 1
2 1
2 1
2 1
1 1
2 1
1 2
2 2
1 2
1 2
2 1
1 1
1 2
1 1
1 2
2 1
2 2
2 2
1 2
1 1
1 2
2 2
2 2
1 2
1 1
1 2
2 1
2 1
1 2
1 2
2 2
2 2
1 2
1 2
1 2
1 1
2 1
2 1
1 1
1 2
2 2
2 2
2 1
1 1
1 2
2 2
2 1
2 2
2 1
2 2
2 1
1 2
1 2
1 1
1 1
1 2
1 2
2 1
2 1
1 2
1 1
2 1
2 1
1 2
2 1
1 2
2 1
1 2
2 1
2 1
1 1
1 2
2 2
1 2
1 2
1 2
2 1
1 1
1 2
1 2
1 2
1 1
2 2
1 2
1 2
1 1
1 1
2 2
1 1
1 1
2 1
2 1
2 2
2 2
2 2
1 2
2 2
2 2
2 1
2 1
1 2
1 1
2 1
2 1
1 1
1 1
1 1
1 2
2 2
2 2
1 1
1 1
1 1
1 1
1 2
2 2
1 1
2 2
1 2
1 1
1 1
2 2
1 2
2 1
2 2
2 2
1 2
2 2
2 1
2 1
2 1
1 2
2 1
1 1
1 1
1 1
1 1
1 2
1 1
1 1
1 1
1 1
2 2
1 2
1 2
1 1
1 2
1 2
2 2
2 2
1 2
1 2
2 1
2 1
1 1
1 1
2 2
1 2
1 1
2 1
2 1
1 2
2 2
1 1
2 1
1 2
2 1
2 1
2 2
1 2
2 1
1 1
1 2
2 2
2 1
1 1
1 2
1 2
2 1
2 1
2 2
2 2
2 2
2 1
1 2
1 1
2 2
2 2
2 2
2 1
1 2
1 2
1 1
1 1
1 2
2 2
2 1
2 1
2 2
1 1
2 1
1 2
2 1
2 1
2 1
1 1
2 1
1 1
1 2
1 1
2 2
2 1
1 2
2 1
2 2
1 2
1 2
1 1
2 2
2 1
2 2
1 2
2 2
1 2
1 1
1 2
2 1
2 1
2 1
1 2
2 2
1 2
1 2
2 1
2 2
2 1
2 1
2 2
2 2
2 1
2 2
1 2
2 2
1 2
2 2
1 2
2 1
1 2
1 1
2 2
1 1
1 1
2 1
1 1
1 1
2 1
2 2
2 1
2 2
2 1
1 2
1 2
2 1
1 1
2 2
2 2
1 1
2 1
2 2
1 2
1 1
2 1
1 1
1 2
1 2
1 2
1 1
1 2
2 1
2 2
1 1
2 1
1 1
2 1
1 1
2 1
2 1
2 1
1 2
1 2
2 1
1 1
1 1
1 2
1 2
1 2
2 2
2 2
1 2
2 2
2 1
1 1
2 2
1 1
2 1
1 1
1 2
2 1
1 2
1 1
1 1
1 2
2 1
1 1
2 1
1 2
2 1
1 2
1 2
2 2
2 2
2 1
1 1
2 2
1 1
1 2
2 2
1 2
1 2
2 1
2 2
2 1
1 1
2 1
2 2
1 2
1 2
2 2
1 1
1 2
1 2
2 2
1 1
1 1
2 2
1 1
1 1
1 1
1 1
1 2
2 1
2 1
1 1
1 1
2 2
1 2
1 2
2 1
1 2
1 1
1 1
2 2
2 1
2 1
1 2
1 1
1 2
2 1
1 2
2 1
2 2
2 2
1 1
2 2
2 1
2 1
2 1
1 1
1 1
2 2
1 2
2 2
2 2
1 2
1 2
1 1
1 1
2 1
1 1
2 1
1 2
1 2
1 2
1 1
2 2
1 1
1 2
1 1
2 1
2 2
2 1
1 2
1 1
2 2
2 1
1 2
2 2
2 2
1 1
1 1
1 1
2 2
1 1
1 1
2 1
1 2
1 2
1 2
2 2
2 2
2 1
1 1
1 2
2 2
2 1
1 2
2 2
2 2
2 1
2 2
1 2
1 2
2 2
2 1
2 2
1 2
2 2
2 2
2 1
2 2
2 1
2 2
2 1
1 1
2 2
1 2
1 1
1 1
1 1
2 1
2 1
1 1
1 1
2 1
2 2
2 1
2 2
2 2
1 2
2 2
2 1
1 1
1 2
1 1
1 1
2 2
1 2
1 1
2 2
2 2
2 2
1 2
2 1
1 1
1 1
1 2
1 1
2 2
1 1
2 2
1 2
2 1
1 1
1 1
1 1
2 1
1 1
2 1
2 2
1 2
1 1
1 1
1 2
2 1
2 2
2 1
1 1
1 1
1 2
2 2
1 2
2 1
1 2
2 2
2 1
2 1
1 2
2 2
2 1
2 1
2 1
1 2
1 1
1 2
1 2
2 2
2 1
1 1
1 1
2 2
2 1
2 1
1 2
1 2
2 2
2 2
2 2
2 2
1 1
1 1
1 1
2 2
1 2
2 2
2 1
1 2
2 1
1 2
1 2
2 2
2 2
1 1
2 1
2 1
2 1
2 2
2 2
1 2
1 1
2 2
1 2
1 1
2 2
2 2
1 1
2 1
1 2
1 2
2 2
2 1
2 2
1 1
2 1
2 2
2 2
2 2
1 2
1 1
2 2
2 1
2 1
2 1
1 2
2 1
2 1
1 2
1 2
1 2
2 1
2 2
1 1
1 1
1 1
1 1
1 1
1 1
2 1
2 1
2 1
1 2
2 2
1 2
1 2
1 1
1 2
1 2
1 2
2 2
1 1
2 1
1 2
2 2
2 2
2 1
2 1
1 1
2 2
2 2
2 2
2 1
1 2
1 1
1 2
2 1
2 1
1 1
1 2
1 2
2 2
1 2
2 1
1 2
2 2
2 1
2 1
2 2
2 2
2 1
1 2
2 2
2 1
1 1
1 2
2 1
1 1
2 2
1 1
1 2
2 2
2 2
1 2
1 1
2 2
2 1
1 2
2 1
1 1
2 2
2 2
2 1
1 2
1 1
2 1
2 2
2 1
1 2
1 2
1 2
2 2
2 2
2 1
1 2
1 2
2 2
1 1
2 1
1 1
2 2
2 1
2 2
2 1
1 2
1 2
2 2
1 2
1 1
1 1
2 1
2 1
2 2
2 1
1 2
2 2
1 2
1 2
2 1
2 2
1 1
1 2
1 2
2 2
1 1
2 2
1 1
2 1
2 2
2 1
1 2
2 2
2 1
2 1
1 1
2 1
1 2
2 1
2 2
1 1
1 2
2 1
1 1
2 1
2 2
1 2
1 2
2 2
1 1
1 1
1 1
2 2
2 1
1 1
2 2
2 2
2 2
2 2
2 2
1 1
1 2
2 2
2 2
1 2
1 2
1 2
2 1
1 2
1 2
2 1
1 1
1 2
1 2
1 1
2 2
1 1
1 2
2 1
1 2
2 2
1 1
2 2
1 1
1 1
2 1
1 1
1 2
1 2
2 2
1 1
1 1
1 1
2 1
2 1
2 2
2 2
2 1
1 2
1 2
1 1
2 2
1 1
2 1
1 2
1 2
2 2
2 2
2 1
2 1
1 1
2 2
1 1
2 1
2 2
1 2
2 1
1 1
2 2
2 2
1 2
1 2
1 1
2 2
1 2
2 2
2 1
1 2
1 1
1 1
2 2
2 1
1 1
2 2
2 1
1 2
2 2
1 2
2 1
1 1
1 2
2 2
1 1
1 2
1 1
1 1
1 1
1 2
1 1
2 1
1 2
1 2
1 2
1 2
2 2
2 2
1 1
1 1
2 1
1 1
1 2
1 2
2 2
1 2
2 1
2 2
2 2
1 2
2 2
2 1
2 2
2 2
1 2
2 1
2 2
1 2
1 1
1 1
1 1
1 2
2 2
1 2
1 1
1 1
2 2
2 2
2 2
2 2
2 2
1 1
2 2
1 2
2 1
2 2
1 2
1 2
2 1
2 1
2 1
2 2
1 2
2 2
2 1
2 1
1 2
2 1
1 1
1 2
1 1
1 2
2 1
2 2
2 1
1 1
2 1
2 2
2 1
2 2
1 1
2 2
2 1
1 2
1 2
1 1
2 1
2 2
2 1
2 1
1 2
1 1
1 1
1 2
1 2
2 2
2 2
1 1
2 2
2 1
1 2
1 2
2 2
1 2
2 2
1 2
2 2
1 1
1 1
1 2
1 2
1 2
2 2
2 2
1 1
1 2
1 2
2 2
1 1
2 1
2 2
1 2
1 2
1 1
1 1
2 1
1 2
2 2
1 1
2 1
1 2
2 2
2 1
2 1
1 1
2 2
1 1
2 1
2 2
1 2
1 1
2 1
2 2
1 1
1 1
1 1
1 1
2 1
2 2
2 2
2 2
2 1
1 2
1 1
2 2
2 1
1 2
1 2
1 2
1 2
1 2
1 2
2 2
2 1
2 2
1 1
1 2
1 2
1 2
2 2
2 1
1 2
2 1
1 2
1 1
1 2
1 2
1 1
1 1
2 1
2 1
1 2
1 2
2 1
2 2
1 1
1 2
1 2
2 2
2 2
1 1
1 2
1 2
1 2
1 1
1 1
2 2
2 1
1 1
1 2
1 1
2 1
2 2
1 1
1 2
1 2
2 2
2 2
2 2
2 1
2 2
1 1
2 2
1 1
2 1
2 1
2 1
2 2
1 2
2 2
2 1
1 1
1 2
1 1
2 1
2 1
2 2
1 1
1 1
1 2
2 1
2 1
1 2
1 1
1 2
1 2
1 2
1 1
1 2
1 2
1 1
2 1
1 2
1 1
1 1
1 2
1 1
1 1
1 2
2 1
1 2
1 1
2 1
1 1
2 2
2 2
2 1
2 2
1 2
2 2
2 2
1 1
1 1
1 1
1 1
1 1
2 1
2 1
2 2
1 2
2 1
2 2
1 2
2 1
2 1
2 1
1 2
1 2
2 1
2 1
1 1
1 2
1 2
2 1
2 2
2 1
1 2
2 2
1 2
2 2
2 2
1 1
2 1
1 2
2 1
2 1
2 2
1 2
2 1
2 2
2 1
2 2
2 1
1 2
2 1
2 2
1 1
1 2
1 2
1 2
1 2
1 2
1 2
2 1
1 1
1 1
1 2
2 2
1 1
1 1
1 2
2 2
2 2
2 1
2 1
1 1
1 1
1 1
2 1
1 2
2 1
2 1
1 1
2 2
1 1
2 2
1 1
1 1
1 2
1 2
2 1
1 2
2 2
2 2
1 2
2 2
1 1
1 1
1 2
2 1
2 1
1 2
1 1
2 1
2 2
1 2
2 2
2 1
2 2
1 2
1 1
1 2
1 2
1 2
1 2
1 1
1 1
2 2
1 2
2 2
2 1
1 1
1 1
2 1
1 1
2 1
2 2
2 2
2 1
1 2
1 2
2 2
1 1
1 1
2 2
2 1
1 2
1 2
2 2
1 1
2 1
1 2
1 2
2 2
2 1
1 1
1 1
1 1
2 1
1 1
1 2
2 1
1 1
1 1
2 2
1 1
1 1
1 2
1 2
2 1
2 2
2 1
1 1
2 2
2 2
1 1
2 1
1 2
2 1
2 1
1 2
2 2
1 1
2 2
1 1
1 2
2 2
2 1
2 2
2 2
2 1
2 2
2 1
2 2
1 2
1 1
2 2
2 2
2 2
2 2
2 2
1 1
1 1
2 2
2 1
1 2
2 2
2 1
2 2
2 1
2 2
2 1
1 1
2 2
1 1
1 1
2 1
2 2
1 1
2 1
1 2
1 2
2 1
1 2
2 1
1 2
2 2
1 2
2 2
1 2
2 2
1 2
1 2
1 1
2 2
2 2
1 2
1 2
1 1
1 2
2 1
2 2
1 2
1 1
1 1
2 1
1 2
1 2
1 1
1 1
2 2
1 2
2 2
2 1
1 2
2 2
2 1
1 1
1 2
1 2
2 2
1 2
1 1
2 2
1 2
1 1
1 1
1 1
1 2
2 1
1 2
1 2
2 2
2 2
2 2
1 2
1 1
2 2
1 1
2 1
1 2
2 1
2 2
2 2
2 1
2 1
1 1
2 1
2 1
1 2
2 1
2 2
2 2
1 1
1 1
2 1
2 1
2 1
2 1
2 2
1 1
2 1
1 1
2 2
2 1
2 1
1 1
1 2
1 1
1 2
2 2
2 2
2 1
2 1
1 2
1 2
2 2
1 1
2 2
1 2
2 1
1 2
2 1
2 2
2 2
2 1
1 2
2 2
1 1
2 1
1 2
1 2
2 2
2 2
2 1
2 1
1 2
2 2
1 1
1 2
1 1
2 1
2 1
2 2
1 1
2 2
2 2
2 1
2 1
2 1
2 1
2 2
2 1
2 2
1 1
2 2
2 2
1 2
1 1
1 2
2 1
2 1
1 2
1 1
1 1
1 1
1 2
2 1
2 1
1 2
1 2
2 2
2 1
1 1
1 1
2 1
2 1
2 2
1 2
2 2
2 2
1 1
2 1
1 2
2 1
2 2
2 2
1 2
1 1
1 1
2 1
2 1
1 2
1 2
1 2
1 2
2 1
2 2
1 1
1 2
1 1
1 1
1 2
2 1
1 2
1 1
1 1
2 2
1 2
1 2
1 1
2 2
2 1
2 1
2 2
2 1
2 2
1 1
1 1
1 2
1 2
1 2
1 2
2 1
2 1
1 2
2 2
2 1
2 1
1 2
1 2
2 2
1 1
2 1
1 1
2 2
2 2
2 2
2 1
2 2
2 2
2 2
2 1
2 2
2 2
2 1
2 1
2 2
1 2
1 1
1 1
1 1
1 1
2 1
1 1
1 1
2 2
2 2
1 1
2 1
2 2
1 1
1 1
1 2
1 2
2 2
2 2
1 2
1 1
2 2
1 1
2 1
1 1
2 1
1 1
2 1
1 1
2 1
2 1
2 2
2 1
2 1
2 1
2 2
1 1
1 1
2 2
2 1
2 1
1 1
1 2
2 1
2 1
1 2
2 2
2 1
1 1
2 2
2 2
2 1
2 1
1 2
2 1
1 1
2 2
2 1
2 1
2 2
1 1
1 1
1 1
1 1
1 1
1 2
2 2
2 2
1 1
2 2
2 2
2 2
2 2
2 2
1 2
2 2
2 2
2 1
2 1
1 2
1 2
1 2
1 1
1 2
2 2
1 1
1 1
2 1
2 2
2 2
1 1
2 2
1 2
2 1
2 1
1 2
1 1
2 1
2 2
1 1
1 2
2 1
1 1
1 1
2 1
1 1
2 1
1 2
1 1
1 1
2 1
1 2
2 2
2 1
1 2
1 2
2 2
1 2
2 2
1 1
1 1
1 2
2 1
2 1
1 1
2 1
1 2
2 1
1 1
2 2
2 2
2 2
1 1
1 1
2 2
2 1
2 2
2 2
2 1
2 1
2 1
2 2
2 2
2 2
1 2
1 2
1 1
2 2
1 2
2 1
1 1
1 2
2 1
1 1
2 2
2 2
2 2
1 1
1 1
1 2
2 2
1 1
1 1
1 2
2 2
1 2
2 2
1 2
2 1
2 2
2 2
2 1
2 2
2 2
1 2
1 1
2 2
1 2
1 2
1 2
2 2
1 1
2 1
1 2
2 1
1 2
1 2
2 1
1 2
2 2
2 2
1 2
1 2
1 1
2 1
1 2
1 2
2 2
1 1
2 2
1 1
1 1
2 2
2 2
2 2
1 1
1 1
2 2
2 2
1 1
1 2
2 1
1 1
1 2
2 2
1 1
2 2
1 1
2 2
2 2
2 2
1 2
2 1
1 2
2 1
1 1
2 2
2 2
2 2
1 2
2 1
2 2
1 2
1 2
1 1
1 2
1 1
2 1
2 2
2 2
2 1
2 2
1 1
1 1
1 1
2 2
2 1
2 1
1 1
1 1
1 2
2 2
1 2
2 2
2 2
2 2
1 2
1 2
1 2
2 2
1 2
2 1
2 1
2 1
1 2
2 2
2 1
2 1
2 2
2 2
2 2
2 1
1 1
1 2
2 1
2 1
1 1
1 1
2 1
2 1
2 2
2 2
1 2
2 2
1 1
1 2
1 2
2 1
1 2
1 1
1 1
2 2
1 1
1 1
1 2
1 2
1 2
2 1
2 1
2 1
2 2
2 2
1 1
1 2
2 1
2 1
1 2
2 2
1 1
2 1
2 2
2 2
1 1
2 2
1 2
2 2
2 1
1 2
2 2
2 2
1 2
2 1
2 1
1 1
2 2
2 1
2 1
1 1
1 1
1 2
1 1
2 2
1 1
2 2
2 2
2 1
1 1
1 2
1 1
1 1
1 2
1 2
1 1
1 2
2 2
2 2
1 2
2 1
1 2
2 2
2 1
2 2
2 2
2 2
1 1
1 1
1 1
2 2
2 1
2 1
1 2
1 1
2 1
1 1
1 1
1 1
1 1
2 1
2 2
1 2
2 2
2 2
2 1
2 2
1 1
2 1
1 1
1 2
2 1
2 2
1 1
2 2
1 1
1 2
1 1
2 2
1 2
1 1
2 2
2 1
1 1
1 1
2 2
1 2
2 1
2 2
2 2
1 2
1 2
2 2
1 2
2 1
2 1
1 1
1 1
1 2
1 2
1 1
1 2
2 1
2 2
2 2
2 2
2 2
2 1
2 2
1 1
2 2
2 2
2 2
1 1
2 1
2 1
1 2
2 1
2 2
2 2
1 2
1 2
1 1
2 2
1 1
1 1
1 1
1 1
1 1
1 1
2 1
1 2
1 1
2 1
2 1
2 2
1 1
1 2
1 2
1 1
2 2
2 2
2 1
1 2
1 1
2 1
1 1
2 2
1 2
2 1
1 2
2 2
1 2
2 2
2 2
1 2
1 1
1 1
2 1
1 2
1 1
1 2
2 2
1 2
1 1
2 1
1 2
1 1
1 1
1 2
2 2
2 2
1 1
1 2
2 2
2 1
2 1
2 2
1 2
2 1
1 1
1 1
2 2
2 1
1 1
2 2
2 2
1 2
2 2
2 2
2 2
1 2
2 1
1 2
2 2
1 2
1 2
2 1
1 1
1 1
1 2
1 1
2 2
1 1
2 2
2 1
2 2
1 1
2 2
1 2
1 1
2 2
2 2
2 2
1 1
2 2
2 1
2 1
2 1
1 2
1 2
2 1
2 1
2 2
1 1
2 2
1 1
1 2
2 2
1 2
2 2
1 2
1 1
1 1
2 2
1 2
1 2
2 1
2 2
1 2
2 2
1 1
2 2
1 2
1 1
1 1
2 1
1 1
1 1
1 2
2 1
1 2
2 2
1 2
1 2
2 1
1 2
2 2
1 2
1 1
2 1
1 2
2 2
2 1
2 2
1 2
1 2
1 1
2 1
1 1
1 1
1 1
1 2
1 1
2 1
2 1
1 1
2 2
1 1
1 2
2 2
2 2
2 2
1 1
1 2
2 2
2 1
1 2
2 2
1 2
1 1
1 1
1 2
1 2
2 1
1 1
2 1
1 1
2 2
1 2
2 2
2 1
2 1
1 2
1 1
2 1
1 2
2 2
1 2
1 2
1 2
1 2
1 1
1 1
1 2
1 1
1 2
2 1
2 2
1 1
2 1
2 2
2 1
1 2
2 1
1 1
1 2
2 1
2 1
1 1
2 2
2 2
1 1
2 2
2 2
2 2
2 1
1 1
1 2
1 1
2 1
2 2
1 1
2 2
1 2
1 1
2 1
1 2
1 2
1 1
1 1
1 2
2 2
1 1
2 1
1 2
2 2
1 1
1 2
2 1
2 1
1 1
1 1
1 1
2 2
2 2
1 1
1 1
2 2
1 1
2 1
1 1
2 1
1 1
1 2
2 2
1 2
1 2
1 1
1 2
1 2
2 1
1 2
1 2
2 1
1 1
2 1
1 2
1 2
2 1
1 1
1 1
2 2
2 1
2 2
2 1
1 1
1 2
1 1
2 2
2 2
2 1
1 2
1 2
1 1
2 2
1 2
1 1
1 1
1 2
2 1
2 1
2 2
2 1
1 1
1 1
1 2
2 2
1 2
1 1
2 1
2 2
2 2
1 2
2 1
1 1
2 2
1 1
1 2
1 1
1 1
2 2
1 2
1 1
1 2
1 1
1 2
1 2
1 1
1 2
1 2
1 2
1 2
1 2
1 2
1 1
1 1
2 1
2 1
1 1
2 1
2 2
2 2
1 1
1 1
2 2
1 1
1 2
2 1
1 1
2 1
1 2
1 2
2 1
2 2
2 2
1 2
1 2
2 1
2 2
2 1
2 2
2 2
2 2
1 1
1 2
1 2
2 1
2 1
1 1
2 1
2 1
1 1
1 1
2 2
1 2
2 2
1 1
2 1
1 2
1 1
1 1
1 1
2 2
1 1
2 1
1 1
1 2
2 1
2 1
1 1
2 1
2 1
2 1
1 1
2 2
2 1
1 1
2 1
2 2
1 2
2 2
2 1
1 2
1 1
2 2
1 1
2 1
2 2
2 2
1 1
2 2
1 2
2 2
2 1
2 1
2 1
1 1
2 1
2 1
1 2
2 1
1 1
2 2
2 2
2 2
2 1
1 2
1 1
2 2
2 2
2 2
2 2
1 1
1 1
1 2
2 1
1 1
1 1
1 2
2 1
2 1
1 2
2 1
2 1
1 2
1 2
2 1
1 2
1 1
1 1
2 1
1 1
2 2
2 2
2 2
1 2
1 2
2 2
2 2
2 2
2 2
2 1
1 2
1 1
2 2
1 1
2 2
1 1
2 1
2 1
1 1
1 1
2 2
2 1
1 2
2 2
2 2
1 2
2 1
1 2
2 1
1 1
2 2
2 2
1 1
1 1
1 1
1 1
1 2
2 1
1 2
2 2
1 2
1 2
2 2
1 2
2 1
2 1
1 2
2 2
1 2
1 2
2 1
2 1
2 1
1 1
1 1
2 2
2 1
1 1
2 2
1 2
1 2
2 1
1 2
2 1
1 1
2 2
2 2
1 2
2 2
1 2
2 2
2 2
2 2
2 2
2 1
1 1
2 1
1 1
2 2
1 1
2 1
1 2
2 2
2 1
1 2
1 1
1 2
2 1
1 1
2 1
1 2
2 1
2 2
2 1
2 1
2 1
2 2
1 1
2 2
1 2
1 1
1 2
1 1
2 1
2 2
2 1
1 2
1 1
2 2
1 2
2 2
1 1
2 2
2 1
1 2
1 1
2 2
2 1
1 1
2 1
2 1
2 2
1 1
1 1
2 2
1 1
1 1
2 2
2 2
2 2
2 1
1 2
1 1
1 2
2 2
2 1
1 2
1 1
2 2
1 1
2 2
1 2
1 1
1 1
1 1
2 2
2 2
1 1
2 1
1 2
1 1
1 1
1 1
1 2
2 2
1 1
2 1
2 1
2 2
2 2
2 1
1 1
1 2
2 1
1 1
1 1
1 1
1 1
2 2
2 1
2 1
1 2
2 1
2 2
1 1
2 2
1 1
1 2
2 2
1 1
2 2
1 1
1 2
2 2
1 1
2 1
2 1
1 2
1 1
2 2
1 1
1 1
2 2
1 2
1 2
1 1
2 1
1 2
1 2
1 1
1 2
1 2
2 1
1 2
2 2
1 2
1 1
1 1
2 1
1 1
1 2
2 2
1 2
1 2
2 1
2 1
2 1
2 2
2 2
1 1
2 1
1 2
1 1
2 2
1 1
2 1
2 1
2 2
2 2
1 1
2 1
2 2
2 1
1 2
2 2
2 1
1 1
1 1
2 1
1 2
2 2
1 1
2 1
2 2
1 2
2 2
1 2
2 1
1 1
1 2
2 2
2 2
2 1
1 1
1 1
2 2
2 1
2 2
1 1
2 2
1 1
2 2
2 2
1 1
2 1
2 1
2 1
2 2
1 2
2 2
2 1
2 1
2 1
1 1
2 2
2 1
2 2
2 1
2 1
1 1
2 2
2 1
2 2
1 2
1 1
1 1
2 2
1 1
1 1
2 1
1 1
1 1
2 2
1 2
2 1
1 1
1 2
2 2
2 2
1 1
2 2
2 1
1 1
1 1
1 2
1 2
2 2
2 2
1 1
2 2
2 2
1 1
2 2
2 2
2 2
2 1
1 2
1 1
1 1
2 1
1 2
2 2
1 1
1 1
1 1
1 1
1 1
2 1
2 1
1 1
1 2
2 1
1 2
1 2
2 2
1 1
2 2
2 1
1 2
2 1
2 2
2 2
2 2
1 1
2 2
1 2
2 2
2 1
2 1
2 1
2 1
1 2
2 1
1 2
2 1
2 1
1 2
2 1
2 2
2 2
2 1
1 2
1 2
2 2
1 1
2 1
2 2
2 1
2 2
1 2
2 2
1 1
1 1
1 2
1 2
1 2
2 1
2 2
1 1
1 1
2 2
2 2
1 2
1 1
2 1
2 2
1 2
1 2
2 2
1 2
1 1
1 2
1 1
2 1
2 2
2 1
1 1
2 2
1 1
1 1
2 1
1 2
1 2
1 1
1 1
1 2
2 2
2 2
2 2
1 2
1 2
2 2
1 1
1 2
1 2
1 2
2 1
1 1
1 2
2 2
2 1
1 1
2 2
2 1
2 2
2 1
1 2
1 1
2 2
2 2
2 1
2 1
1 1
1 2
1 2
1 1
2 1
2 1
1 2
1 2
2 2
2 2
1 1
1 1
1 1
2 2
2 1
1 2
2 2
1 1
2 2
2 1
2 1
2 2
1 1
2 1
2 2
2 1
2 1
1 1
2 2
2 2
1 2
1 1
2 1
1 2
2 2
2 1
2 2
2 1
1 1
2 1
2 1
2 2
1 1
1 1
2 2
1 1
2 1
2 1
2 2
1 1
2 1
2 2
2 2
2 1
2 1
2 1
2 2
2 2
2 1
2 2
2 1
2 1
1 1
2 1
2 2
2 2
1 2
2 1
1 2
1 1
2 1
2 2
1 1
1 2
2 1
2 1
2 2
2 2
1 1
1 2
2 1
2 2
1 2
2 1
1 2
2 1
2 1
2 1
1 2
2 1
1 2
1 2
2 2
2 1
2 1
1 1
1 2
1 2
1 1
2 1
2 1
1 1
2 2
1 1
1 1
2 2
1 1
1 1
2 2
1 1
2 2
1 2
2 2
1 2
2 1
2 2
2 1
1 1
1 2
2 1
1 1
2 2
1 1
1 1
2 1
2 2
2 1
1 2
2 2
2 1
2 2
2 1
2 2
1 1
1 1
2 2
2 2
2 1
2 2
2 2
1 1
2 1
2 2
1 2
1 1
2 2
1 1
2 2
1 1
2 1
1 1
1 2
2 2
2 1
1 2
1 1
2 2
1 2
2 1
1 1
1 2
2 1
1 2
1 1
2 1
1 1
2 1
1 1
1 1
1 2
1 1
1 1
1 1
1 1
1 2
1 2
1 1
2 1
1 1
1 1
2 2
2 2
1 1
1 2
1 1
1 1
2 2
2 2
2 1
1 1
1 1
2 1
2 2
1 1
2 1
1 1
2 1
2 1
2 2
1 2
1 1
2 2
1 1
1 1
1 1
2 2
2 2
1 1
2 2
2 2
1 1
1 1
2 1
1 1
2 2
1 1
2 2
2 1
2 2
2 1
2 1
2 2
1 2
1 2
2 2
1 2
2 2
1 1
2 2
1 2
2 2
1 2
2 1
2 1
2 1
1 1
1 1
2 2
1 2
1 1
2 1
1 1
2 2
1 1
2 1
2 2
1 1
1 2
1 2
2 1
1 1
2 2
1 1
1 2
1 1
2 2
1 1
1 2
1 1
2 1
1 1
2 2
2 1
1 1
1 1
2 2
2 2
1 1
2 1
2 2
2 2
1 2
2 1
1 2
1 1
1 2
2 1
1 2
1 1
2 2
2 1
1 2
1 1
2 2
1 2
2 1
2 2
1 1
1 1
1 2
1 1
2 1
1 2
1 2
1 1
1 2
1 2
2 2
1 2
2 2
1 1
2 2
2 1
2 1
1 1
2 1
1 1
1 2
1 2
1 2
2 1
2 2
2 2
1 2
1 2
2 1
2 2
1 1
2 1
1 2
1 1
1 1
2 1
1 1
1 2
2 1
1 2
2 1
1 1
2 2
1 1
1 1
1 1
1 2
2 1
2 1
1 2
2 2
1 1
1 1
2 1
1 2
1 2
1 1
2 2
2 1
1 2
1 2
2 1
1 1
1 1
2 2
1 2
1 2
2 2
1 1
1 1
1 2
2 1
2 1
1 2
2 1
2 1
2 2
1 1
1 2
2 1
1 1
2 2
2 1
1 1
1 1
2 1
2 2
2 1
1 2
2 1
1 1
1 2
1 2
1 1
1 1
2 1
2 2
1 2
2 2
1 1
2 2
1 2
2 1
2 2
2 1
2 1
1 1
2 2
2 2
1 1
2 2
2 2
2 2
2 2
1 2
2 1
1 2
1 1
2 2
2 2
2 2
2 2
1 1
2 2
2 1
1 1
1 1
2 1
2 2
2 2
2 2
1 2
2 2
1 2
2 2
1 2
1 2
2 2
2 1
2 2
1 2
2 2
1 2
2 1
2 2
2 1
1 1
1 2
2 2
1 1
1 1
2 2
1 2
2 2
1 1
1 2
2 2
1 2
1 1
2 2
2 1
1 1
2 2
2 2
2 2
1 2
1 1
1 2
2 1
1 2
2 2
2 2
2 2
1 1
2 2
1 2
1 2
2 1
2 2
1 1
2 2
2 2
1 2
1 2
2 2
1 2
2 1
1 1
2 2
1 2
1 1
2 1
1 2
2 1
2 2
2 1
2 2
1 2
2 1
1 2
2 2
1 2
2 1
1 2
2 2
1 1
2 1
1 2
1 2
1 2
1 2
1 2
2 2
1 2
1 2
1 2
2 1
2 1
1 1
2 2
2 1
2 2
2 1
1 2
2 2
2 2
2 1
2 1
1 2
2 1
1 1
1 1
1 1
1 1
1 2
2 2
1 2
2 1
2 2
2 2
1 1
2 1
2 2
2 1
2 2
2 1
2 1
1 1
1 1
2 2
1 2
2 2
1 1
1 1
2 1
2 1
1 2
1 1
1 1
1 1
2 1
1 2
1 2
1 1
2 1
1 2
2 1
1 1
1 2
1 2
1 2
2 2
1 1
1 2
2 1
2 2
2 2
2 1
2 2
1 1
2 2
2 2
2 1
2 2
1 2
2 1
1 1
1 1
1 2
2 1
1 1
1 1
1 1
1 1
1 2
2 2
2 2
1 1
2 2
1 1
2 1
2 2
2 1
2 1
1 1
1 1
1 1
2 2
2 2
1 2
2 1
1 2
2 2
1 2
1 1
1 1
1 2
2 1
1 2
1 1
2 2
1 1
1 2
1 1
1 2
1 2
2 1
2 1
2 2
1 1
1 2
1 1
2 1
1 1
1 2
2 1
1 1
1 2
2 2
1 1
1 2
2 2
2 2
2 1
2 1
2 1
2 1
2 2
2 1
2 2
1 2
1 2
1 1
2 1
1 2
1 2
2 1
2 2
2 1
2 2
2 1
1 1
2 2
2 1
2 2
1 1
1 1
2 2
1 1
2 1
2 1
1 1
1 2
1 1
1 1
2 1
2 1
1 1
2 1
2 1
2 2
2 1
1 2
1 2
2 1
1 1
2 2
1 1
1 1
1 1
1 2
1 1
2 2
2 1
2 2
2 1
2 1
2 1
2 2
2 2
2 2
1 1
1 1
2 2
2 2
1 1
2 1
2 1
2 2
2 2
2 2
2 2
1 1
2 2
2 1
1 1
1 2
1 2
1 1
1 1
1 1
2 1
2 1
2 1
1 2
1 1
1 1
2 1
1 2
2 1
2 1
2 1
1 2
2 2
2 2
2 1
1 2
1 2
2 2
1 1
2 1
2 1
1 1
1 1
2 2
2 2
2 2
1 1
1 2
2 1
2 2
1 1
2 2
1 1
2 1
2 1
1 2
1 1
2 1
1 1
1 2
1 2
1 2
2 2
1 2
2 1
2 1
2 2
1 1
1 2
2 1
1 1
1 2
2 1
1 2
2 2
1 1
1 2
2 2
1 1
1 2
2 2
1 1
1 2
1 2
2 1
2 2
1 2
1 2
2 1
2 2
1 2
1 2
2 2
1 1
2 1
1 2
2 1
2 2
1 2
1 1
1 2
2 2
2 2
2 1
2 1
2 2
1 1
2 1
1 1
1 2
1 2
1 2
2 2
1 1
1 2
1 1
2 1
2 2
1 1
2 2
2 1
1 2
2 2
2 2
2 1
2 2
2 1
2 2
2 2
2 2
2 2
2 2
2 2
2 1
1 1
2 2
1 2
1 1
1 2
1 1
1 1
1 1
2 1
2 1
2 1
2 1
1 1
1 2
2 1
1 2
2 2
1 1
1 1
1 2
2 1
1 1
1 1
2 2
2 2
1 2
1 2
2 1
2 1
1 1
2 2
2 2
2 1
1 2
1 2
2 2
1 2
1 1
1 2
2 2
1 2
1 1
1 2
2 1
1 1
2 1
2 2
1 1
2 2
1 1
2 2
1 1
1 1
1 2
1 1
1 2
2 2
1 1
2 1
2 1
2 1
1 2
1 2
1 2
1 1
2 2
1 1
2 2
2 1
1 1
2 2
2 2
1 1
1 1
2 1
2 1
2 2
1 1
1 2
1 1
2 2
2 2
2 1
2 1
2 1
1 2
2 1
1 1
2 1
1 1
2 1
1 1
2 2
1 2
1 2
2 2
2 1
2 2
1 2
2 1
2 1
1 1
2 1
2 1
1 2
1 1
1 1
1 2
2 1
2 2
1 1
2 1
2 1
1 1
2 1
2 1
2 1
1 1
2 1
2 1
2 1
2 1
1 1
2 2
1 2
2 1
1 1
2 1
1 2
2 2
2 1
2 1
2 1
2 1
1 2
1 2
1 1
1 1
1 1
2 1
1 2
2 1
1 1
1 2
1 1
2 2
1 1
2 2
1 1
2 2
1 2
1 2
1 2
2 2
2 2
2 1
1 2
2 2
1 2
2 2
2 2
1 1
2 1
1 2
1 1
2 2
1 2
2 2
2 2
1 2
2 1
1 2
2 2
1 1
2 1
2 2
1 1
1 1
2 1
1 1
1 1
1 2
1 1
2 2
1 2
2 1
2 1
1 1
1 1
2 2
1 1
1 1
1 2
1 1
1 2
1 2
1 1
2 1
1 1
1 2
1 2
1 2
1 1
2 2
2 1
1 2
1 1
1 2
1 1
1 1
2 2
2 2
1 1
2 1
1 1
2 2
1 2
1 2
2 1
1 2
1 1
1 2
2 1
1 2
2 2
1 2
1 1
2 2
2 2
2 1
2 1
1 1
1 2
2 1
2 2
2 2
2 2
1 1
1 2
1 2
2 2
2 1
1 2
1 1
1 1
1 2
2 2
1 2
2 2
2 1
1 2
2 2
1 1
2 1
1 2
1 1
2 2
2 1
2 2
2 1
2 2
1 1
1 2
1 2
1 2
2 1
2 1
2 1
1 1
2 1
2 1
2 1
2 2
2 1
1 2
1 2
1 2
1 2
2 1
2 1
2 1
2 1
1 1
1 1
1 1
1 1
2 2
1 2
2 1
2 2
2 1
1 2
2 1
1 1
1 2
2 1
2 2
1 1
2 1
2 1
2 1
1 2
1 1
2 1
1 1
1 2
2 1
2 2
2 1
1 1
2 2
2 1
2 1
2 2
2 1
2 1
2 2
1 1
1 1
1 1
1 1
2 2
2 1
2 2
2 2
1 1
2 2
1 1
1 1
2 1
1 2
2 2
2 2
2 2
1 2
2 1
2 2
2 1
2 1
2 1
2 1
2 1
2 1
1 1
2 1
1 2
1 1
2 1
2 2
2 1
1 1
1 1
1 1
1 1
2 2
2 1
1 1
2 2
1 1
2 2
1 1
2 1
2 2
2 2
2 1
1 2
2 1
2 2
2 1
2 2
1 1
2 1
2 1
1 1
1 1
2 2
1 2
1 1
1 1
2 1
2 1
2 2
1 2
1 1
2 1
2 2
1 2
1 2
2 2
1 2
2 2
2 2
2 1
1 2
1 1
1 2
1 1
2 2
2 1
1 2
1 1
1 1
1 2
2 1
1 2
1 2
1 2
2 1
1 1
2 1
2 2
2 1
2 2
1 1
2 1
2 1
1 2
1 2
1 1
1 2
1 2
1 1
1 1
1 1
1 1
1 1
1 2
1 2
2 1
2 2
2 1
1 2
2 1
2 2
2 1
2 1
1 1
2 2
2 2
1 1
1 1
2 1
2 1
2 1
2 1
1 2
2 2
2 1
1 1
1 1
2 1
1 1
2 2
2 2
2 2
1 1
2 2
1 1
1 2
2 1
1 2
1 2
1 1
1 2
1 1
2 2
2 1
2 1
2 1
1 1
1 1
1 2
2 1
1 2
1 2
1 1
1 1
1 2
2 2
2 1
1 2
1 1
1 2
2 2
1 1
2 2
1 1
1 1
1 2
2 1
1 2
1 1
1 1
1 2
2 2
1 2
2 2
2 2
2 1
1 1
2 2
2 2
1 1
2 1
2 1
1 2
1 2
2 2
2 2
1 1
1 1
1 1
1 1
1 2
1 2
2 2
2 1
2 2
2 1
1 1
2 1
2 1
1 2
1 2
2 2
2 1
2 1
2 2
1 1
1 1
1 1
2 2
1 2
2 2
2 1
1 1
1 2
2 2
2 1
1 2
2 2
2 2
1 1
1 1
2 1
1 2
1 2
1 1
1 2
1 2
1 2
2 1
1 2
1 1
2 2
2 2
2 1
2 2
1 2
1 2
1 1
2 1
2 1
1 1
2 2
1 1
2 1
2 1
2 1
1 2
1 2
1 1
2 1
2 1
1 1
1 1
2 2
2 1
2 1
1 1
1 1
1 2
2 1
1 2
1 2
1 2
2 1
1 2
1 1
2 1
2 2
1 2
1 1
1 2
2 2
2 1
1 2
1 1
1 1
1 2
1 2
1 1
1 1
1 1
2 2
2 1
1 2
2 1
2 1
2 1
1 2
2 2
1 1
2 1
2 2
2 2
2 1
1 2
2 2
1 1
1 2
2 1
1 2
1 2
2 2
2 1
2 2
2 2
1 1
2 2
1 2
1 1
1 1
1 2
2 1
2 1
1 2
2 2
2 2
1 1
2 2
2 1
1 2
1 1
2 2
1 1
2 2
1 2
1 2
2 1
2 2
2 2
1 2
1 2
2 1
2 2
1 2
1 1
1 2
1 2
2 1
1 2
1 1
1 2
2 2
1 2
1 2
1 1
2 2
2 2
1 2
1 2
1 2
1 2
1 1
1 2
2 2
1 2
2 2
2 2
2 1
2 1
2 2
2 1
1 1
2 1
1 1
1 1
2 2
1 2
1 2
2 1
2 2
1 2
1 1
1 1
2 1
2 2
2 2
1 1
1 1
1 1
2 1
1 1
2 1
1 1
2 1
2 1
2 1
1 2
2 1
2 1
1 1
2 1
1 2
1 1
2 2
1 1
1 1
2 2
1 1
1 1
2 1
1 2
1 1
2 1
1 2
1 1
1 2
2 2
1 2
1 2
1 2
2 2
2 1
1 2
2 2
2 2
2 1
1 1
1 2
1 1
2 1
2 1
1 2
1 1
2 2
1 1
1 1
2 1
2 2
2 1
2 2
2 2
2 1
2 2
1 2
2 2
1 2
1 1
2 1
2 1
2 2
1 2
1 2
1 2
2 2
2 1
1 2
1 2
1 1
2 1
2 1
2 2
1 2
1 1
2 2
2 2
1 1
1 1
2 2
1 2
1 2
2 2
2 2
2 1
1 1
1 2
1 1
1 1
2 2
2 1
2 2
2 2
1 1
1 2
2 1
1 2
2 2
2 1
1 2
2 1
1 1
1 2
1 1
1 2
1 2
1 1
2 1
1 1
2 2
2 1
2 1
2 2
2 1
1 1
2 2
1 2
2 1
1 2
1 1
1 2
1 2
2 2
2 2
2 1
1 1
1 1
1 2
1 1
2 1
1 1
1 1
1 1
2 1
2 1
1 2
1 2
1 1
1 2
1 1
1 2
2 2
1 2
2 1
1 1
2 2
2 1
2 1
1 2
1 2
2 2
1 1
1 2
2 2
1 1
1 2
1 2
1 2
2 1
1 1
2 2
1 2
1 1
2 2
1 1
1 1
2 2
2 2
1 1
2 2
2 1
1 1
1 1
2 2
2 1
2 2
1 1
1 2
1 1
1 1
2 2
1 1
1 1
2 2
2 1
2 1
1 1
2 2
2 2
1 2
1 2
2 2
2 2
1 1
2 2
2 2
1 1
1 1
2 1
1 1
1 1
2 1
2 1
2 1
2 2
2 2
2 1
1 2
2 2
2 2
2 1
1 1
1 1
1 2
1 1
1 2
1 1
2 2
2 2
1 2
1 2
1 2
2 1
1 2
2 2
1 1
1 2
2 2
1 1
2 1
1 2
1 2
2 1
1 2
2 2
1 2
1 1
1 1
2 1
2 1
2 1
1 1
1 2
1 2
1 1
2 1
1 1
1 1
1 2
1 2
1 2
2 2
1 1
1 1
2 1
1 1
2 2
2 2
2 2
1 1
1 1
2 1
2 1
2 2
1 2
1 1
1 2
2 2
2 2
2 2
2 2
2 2
1 2
1 1
2 1
2 2
2 1
1 2
1 1
2 2
2 1
2 1
2 2
2 2
2 2
2 1
1 1
2 2
1 2
1 2
1 1
2 2
1 2
2 2
1 2
1 2
1 2
2 1
2 2
1 2
1 2
1 1
1 2
1 1
2 2
1 2
1 2
1 2
1 1
1 2
2 1
2 1
1 2
1 2
1 1
2 2
1 1
2 1
1 1
2 2
2 2
2 2
1 2
2 1
1 1
1 2
1 2
1 1
2 2
2 2
1 1
2 2
2 2
1 1
2 2
2 2
2 1
2 2
1 2
2 2
1 2
1 2
1 2
2 1
2 1
1 2
2 1
1 1
1 1
2 2
2 1
2 2
1 1
1 2
1 2
2 1
1 2
1 2
2 1
2 1
1 1
2 2
1 2
1 2
2 1
2 2
2 1
2 2
2 1
1 2
1 2
2 1
1 2
1 2
2 1
1 1
2 1
1 1
2 2
1 2
1 1
2 1
1 2
2 1
2 1
2 1
1 1
2 2
2 1
1 1
2 1
1 1
1 1
2 1
1 1
2 2
2 2
1 1
1 1
1 2
2 2
2 1
2 2
1 2
2 1
2 1
2 1
2 2
1 1
1 1
1 1
1 1
2 1
2 2
2 1
2 2
2 2
1 1
2 2
2 2
1 1
1 1
2 1
1 1
1 1
2 2
1 1
2 1
2 2
1 1
2 1
2 2
1 2
1 1
2 1
2 2
2 1
2 1
2 2
2 2
1 2
1 1
2 1
2 2
2 1
2 1
2 1
2 1
2 2
2 2
2 2
2 1
2 2
2 1
2 1
1 1
1 1
1 2
2 2
1 2
2 1
1 2
1 1
1 1
2 2
2 1
1 2
1 1
1 1
1 2
2 2
1 1
1 2
2 2
1 2
1 2
2 1
1 2
2 2
2 1
1 2
1 2
1 1
2 2
1 1
1 2
2 1
2 2
2 2
2 2
1 1
2 1
1 1
2 1
2 2
1 1
1 2
1 2
2 1
1 1
2 1
1 1
2 1
2 1
2 1
2 1
2 2
1 2
2 2
2 1
2 2
1 2
1 2
2 1
2 1
1 2
2 2
2 2
1 1
1 2
2 2
2 1
1 1
1 2
1 2
1 2
2 1
1 1
1 2
2 1
1 1
1 2
2 1
2 2
2 2
2 2
2 2
2 2
1 2
1 2
2 1
2 2
2 2
2 2
2 1
2 1
2 2
2 2
2 1
2 2
2 2
1 2
1 2
1 1
2 2
2 1
1 2
1 1
1 1
1 1
1 1
2 2
2 2
1 1
2 2
2 2
2 1
2 1
2 2
1 1
2 2
2 2
2 2
1 2
2 2
1 1
2 2
2 2
2 1
1 1
1 1
1 2
2 1
2 2
1 2
1 2
2 1
1 1
2 1
2 2
1 2
2 1
2 2
2 2
2 2
2 2
2 1
2 2
2 1
1 2
2 1
2 2
1 1
2 2
2 2
2 2
1 1
2 2
1 2
2 2
1 1
1 1
1 1
2 2
2 2
2 2
1 1
2 2
2 1
2 2
1 2
1 1
2 1
2 2
1 1
2 2
2 1
1 2
2 2
2 1
2 1
1 2
1 1
1 1
2 2
2 1
1 1
1 1
1 2
1 2
1 1
2 1
1 2
2 2
2 2
1 1
2 2
1 1
2 2
1 2
2 2
1 1
2 1
2 2
2 2
1 1
1 1
2 1
1 2
2 1
2 1
1 2
1 2
2 2
1 2
2 2
2 1
1 1
2 1
1 1
2 1
2 1
2 1
2 1
1 2
1 2
1 2
1 1
2 2
2 2
2 1
2 2
2 2
1 1
2 1
1 2
2 1
1 1
2 1
2 1
1 1
2 2
2 1
2 2
1 1
2 1
1 2
2 1
2 1
1 1
2 2
1 1
2 1
1 1
1 2
2 2
1 2
2 2
1 1
2 1
1 1
2 2
1 1
1 1
2 2
2 2
2 1
2 1
1 2
1 2
2 2
2 1
2 1
2 1
2 2
1 2
1 2
1 1
1 2
2 1
1 2
2 2
1 1
2 2
2 1
2 2
1 1
2 2
1 2
2 2
2 1
2 1
2 2
1 2
2 2
1 1
1 1
2 1
1 2
2 2
2 2
1 2
1 1
1 2
2 2
1 1
2 1
1 1
2 1
1 1
2 2
2 2
2 1
2 2
2 2
1 2
1 2
1 1
2 1
2 1
2 1
1 2
2 1
1 2
2 2
2 1
2 2
2 1
1 2
2 1
1 2
1 1
2 2
2 2
2 1
1 1
1 1
1 2
2 1
2 2
2 2
1 1
2 2
2 2
1 1
2 2
1 2
1 1
2 1
1 2
1 1
2 2
2 1
2 2
1 1
1 2
1 2
2 2
1 1
1 1
2 2
1 1
2 1
2 2
1 2
2 2
2 2
2 2
2 1
2 1
2 2
1 1
1 1
2 2
1 2
2 1
2 1
2 2
2 1
2 1
2 1
2 1
1 2
1 1
1 2
1 1
2 1
1 1
2 2
1 2
2 2
1 1
2 2
1 1
1 2
1 2
1 2
1 2
2 2
1 2
2 1
2 2
2 1
2 2
2 2
2 1
1 2
1 2
2 2
2 1
1 2
2 2
1 2
2 1
2 1
2 1
2 1
2 1
2 2
1 2
1 2
2 2
2 2
2 1
1 1
2 2
1 1
2 1
1 1
1 1
1 1
2 2
2 2
1 2
1 2
1 2
1 1
1 1
1 2
1 2
2 1
2 2
1 1
2 1
1 1
1 2
1 2
1 1
1 2
2 1
2 1
2 2
1 2
1 2
2 1
2 2
1 2
2 1
2 1
2 1
2 1
1 2
1 2
1 2
1 2
1 1
2 2
2 1
1 1
1 1
2 1
1 2
1 2
2 2
2 2
2 2
1 1
2 2
1 2
2 1
2 1
2 1
1 2
1 2
1 2
2 2
1 2
2 1
1 1
2 1
1 2
2 1
1 2
1 2
1 2
1 1
1 2
2 1
2 2
1 2
1 2
2 1
1 1
2 2
1 1
2 1
2 1
2 1
2 2
2 2
1 2
2 2
1 2
2 1
1 2
1 1
1 2
2 2
2 2
2 2
2 2
2 1
2 1
2 2
1 2
1 1
2 2
1 2
1 2
2 1
2 2
2 2
1 2
2 1
2 2
2 1
2 2
1 2
2 1
2 2
1 2
2 1
1 1
1 1
2 2
2 1
1 2
2 2
1 2
1 2
1 2
2 1
2 2
2 1
2 1
1 2
2 2
2 1
1 1
1 1
2 2
1 1
1 2
1 2
2 1
1 1
2 2
2 2
1 1
1 1
1 1
1 2
1 2
1 1
2 2
2 1
2 1
1 2
2 2
1 1
2 1
1 2
1 1
1 2
1 2
1 1
2 1
1 2
2 1
1 1
1 2
1 1
1 2
1 1
2 1
2 2
2 2
2 1
2 2
1 1
1 2
1 1
1 1
1 2
2 1
1 1
1 2
1 2
1 1
2 1
1 2
1 2
2 1
2 2
1 2
1 2
1 2
1 2
2 2
1 2
1 1
1 1
1 2
1 1
2 1
1 1
1 1
2 1
1 2
2 1
2 1
1 1
1 1
2 1
1 2
1 1
1 2
1 2
2 2
1 1
2 2
1 2
1 2
1 1
2 2
1 1
2 2
2 2
1 2
2 2
2 2
2 2
2 2
1 2
2 2
1 2
2 2
1 1
1 2
2 1
2 2
1 1
2 2
1 2
2 2
1 2
2 1
1 1
1 2
1 2
1 2
2 2
2 2
1 1
2 2
1 1
2 1
1 1
1 2
2 1
1 1
2 1
1 2
2 2
1 2
2 1
2 1
1 1
1 2
1 2
1 2
1 1
1 1
1 1
2 1
1 2
2 2
1 1
1 1
2 1
2 2
2 2
1 1
1 2
1 1
2 1
1 1
2 2
2 2
1 1
2 1
1 1
1 1
2 2
2 1
1 2
1 2
1 1
2 2
2 1
1 1
2 1
2 2
2 2
1 2
1 2
1 2
1 2
2 2
1 1
1 1
1 1
1 2
2 2
1 2
2 1
2 1
2 1
2 2
2 1
1 1
1 1
1 1
1 1
2 1
1 2
2 1
2 2
1 1
1 1
2 1
1 2
2 1
2 2
1 1
1 2
2 2
2 1
1 2
2 1
2 2
1 2
1 2
1 2
2 1
1 2
2 1
2 2
2 1
1 1
2 1
1 2
2 2
2 2
2 1
2 2
1 1
2 1
2 2
2 1
2 1
2 2
1 2
2 2
2 2
2 2
2 1
1 2
2 1
2 1
2 1
2 2
2 1
1 1
1 1
1 1
2 2
1 2
2 1
1 2
1 2
2 2
1 2
1 1
1 2
1 1
1 1
1 2
2 1
2 1
2 2
2 2
2 1
2 2
1 2
1 1
2 1
2 1
2 2
1 1
2 2
1 2
2 2
1 2
1 2
1 2
2 2
2 1
1 1
1 1
2 2
2 1
2 1
1 2
1 1
2 1
2 2
2 2
1 1
1 2
2 2
2 2
2 2
1 1
1 2
2 1
2 2
1 2
2 2
1 1
2 2
2 1
2 1
1 1
1 2
1 2
1 2
1 2
2 1
1 1
1 2
1 2
1 2
2 1
1 1
1 1
2 1
1 2
1 1
2 2
1 1
1 2
1 1
2 1
1 2
1 1
2 1
1 1
2 2
1 1
1 2
2 1
1 2
1 2
1 1
2 1
2 2
2 1
2 1
2 2
1 1
1 2
1 2
1 1
2 1
2 1
2 2
2 2
2 1
1 2
2 1
1 2
2 2
1 1
2 2
2 2
1 1
1 1
1 2
1 2
1 1
2 2
2 1
2 1
2 1
1 1
2 1
2 1
2 1
1 2
2 1
2 2
1 1
1 1
1 2
1 1
2 2
1 1
2 2
2 1
2 1
2 2
1 1
2 2
2 1
1 1
1 2
2 2
1 2
1 1
2 2
2 1
2 2
1 2
1 1
2 1
1 2
1 1
1 2
1 1
1 2
2 2
1 1
2 1
1 2
2 2
1 1
2 2
1 1
2 2
1 1
2 1
1 2
1 1
1 1
2 2
2 2
2 2
1 2
1 2
1 2
2 2
2 1
2 1
1 2
1 2
1 2
2 2
1 2
2 2
1 1
1 2
2 1
1 1
2 2
1 1
1 2
2 2
2 1
1 1
2 1
1 1
2 1
2 2
1 2
1 1
2 1
1 1
2 2
2 2
1 2
2 1
1 1
1 1
1 2
2 2
1 2
1 2
1 2
1 1
2 2
1 1
2 2
2 2
2 2
2 1
1 2
2 2
2 1
1 1
2 2
1 2
2 1
2 1
2 1
1 1
1 1
2 2
2 2
1 2
2 2
1 2
1 2
1 2
2 2
1 2
2 1
2 1
1 1
1 1
2 1
1 1
2 2
1 1
2 2
1 1
2 2
1 1
2 2
1 1
1 1
2 1
1 2
2 1
2 1
1 1
1 1
1 1
1 1
2 2
2 1
2 2
2 2
1 2
2 2
2 2
1 2
1 2
2 1
1 2
2 1
1 2
1 2
2 2
2 2
1 2
1 2
2 1
2 1
1 1
2 1
1 2
1 2
2 1
2 2
1 1
1 1
1 2
2 2
1 2
2 1
1 2
2 1
1 2
2 1
1 1
1 1
1 2
2 1
1 2
2 2
2 1
1 2
1 2
1 1
1 1
2 2
2 2
1 2
1 2
1 2
2 1
1 2
1 2
2 1
1 1
1 1
1 2
2 1
1 2
2 1
2 2
2 2
2 1
2 1
1 1
2 2
2 1
1 1
2 2
1 2
1 1
1 2
1 1
1 2
1 2
2 2
1 2
2 1
1 2
2 2
2 2
2 2
2 1
1 1
2 2
1 1
2 1
1 1
1 1
2 1
1 2
2 1
2 2
1 2
1 2
2 2
2 2
2 1
2 2
1 1
1 2
1 1
1 2
1 1
1 2
1 2
2 1
2 1
2 1
2 2
2 1
1 2
1 1
1 1
2 1
1 2
1 2
1 1
1 2
2 2
2 2
1 1
2 2
1 2
2 2
1 1
1 2
2 1
1 2
2 2
1 1
1 1
2 1
2 1
2 2
2 2
2 1
2 2
2 1
1 1
1 2
1 2
2 1
2 1
1 2
2 2
2 1
1 2
2 1
2 1
1 1
1 1
1 2
2 2
2 1
1 1
2 2
1 2
2 1
2 2
2 1
2 2
1 2
1 1
2 1
1 1
1 1
1 2
2 1
1 1
1 2
1 2
2 1
1 1
1 2
2 1
1 1
1 2
1 1
2 1
1 2
2 2
1 2
1 1
1 1
2 2
1 2
2 1
1 2
1 2
2 1
1 2
2 1
2 1
1 2
2 2
2 1
2 1
2 2
2 2
1 1
2 2
2 1
2 2
2 1
1 1
1 1
1 1
1 2
1 2
1 2
1 1
2 2
1 1
2 1
2 1
2 2
2 1
1 2
2 2
2 2
2 1
1 1
2 1
2 2
1 2
1 1
2 2
2 2
2 2
1 2
1 1
2 2
1 1
2 1
1 2
1 2
2 2
1 1
2 2
2 2
1 1
1 2
2 2
2 1
2 1
2 2
1 2
1 1
1 2
2 1
2 2
2 2
2 2
2 2
1 2
1 1
1 1
1 1
2 1
1 2
2 1
2 2
1 2
2 1
2 2
1 2
2 1
2 2
1 1
1 2
1 2
2 2
2 1
1 1
2 2
1 2
2 2
2 2
2 2
1 1
1 1
2 2
1 2
1 2
2 2
2 2
1 1
2 1
2 1
1 1
2 1
1 1
1 1
2 1
2 1
2 2
1 1
1 2
2 1
2 1
1 2
2 2
2 2
1 1
2 2
2 1
2 1
1 2
1 2
2 2
2 2
1 1
2 2
1 1
1 1
1 2
1 1
2 1
1 2
2 2
1 1
2 2
2 1
2 1
2 2
1 2
1 1
1 2
2 2
2 2
1 2
1 1
2 2
1 2
1 2
1 1
2 2
1 2
2 2
1 2
1 1
2 1
1 1
1 2
1 1
1 2
2 2
2 2
1 1
1 1
2 2
2 2
2 2
1 1
1 1
2 2
1 2
2 1
1 2
1 2
2 1
1 1
1 2
2 1
2 1
1 2
2 1
1 1
2 2
1 1
2 2
2 2
1 2
2 1
2 1
1 2
2 2
2 2
2 2
1 2
2 2
1 2
1 2
2 2
2 1
1 2
1 2
1 1
1 1
1 2
1 1
2 1
2 2
2 1
1 1
1 1
1 1
2 1
2 1
1 1
1 1
2 2
2 1
1 2
2 1
1 1
1 2
2 2
2 1
2 1
2 1
2 2
2 1
2 1
2 1
1 2
1 1
2 2
1 1
1 2
1 2
2 2
2 2
2 1
1 2
1 1
2 1
2 2
1 2
1 2
1 1
1 1
1 1
2 2
2 1
2 1
1 2
2 1
2 1
1 1
1 2
2 2
1 2
2 2
1 2
2 1
1 2
2 2
1 2
2 1
1 1
1 1
2 1
1 2
1 2
2 2
1 2
2 1
1 1
1 1
2 1
2 2
2 2
1 2
1 1
2 2
1 1
1 1
1 2
2 1
2 1
1 1
2 1
2 1
1 2
1 2
2 1
2 2
2 1
1 2
1 1
1 1
1 1
2 2
2 1
1 2
1 1
1 1
1 1
2 1
1 2
2 1
1 2
1 2
2 2
2 1
2 1
2 1
2 2
1 1
1 2
1 1
1 1
1 1
1 2
1 1
1 2
1 2
1 2
2 1
1 1
1 2
2 1
2 2
1 2
2 1
1 2
2 2
1 2
2 1
2 1
1 2
2 2
1 2
2 2
1 2
2 2
1 2
1 1
2 2
1 2
1 2
2 2
1 1
2 1
1 2
2 1
2 1
2 2
2 2
2 1
1 1
1 2
1 2
2 1
2 2
2 1
1 1
2 2
1 2
2 1
1 1
2 1
2 1
2 2
2 1
1 1
2 2
2 2
1 1
1 1
1 2
1 1
1 2
1 2
1 2
1 2
1 1
2 1
2 2
2 2
1 2
1 2
2 2
2 1
2 1
2 2
1 1
1 1
2 2
1 1
1 1
2 1
2 2
2 2
1 2
1 1
2 2
2 2
2 1
1 1
2 2
1 2
1 1
1 1
1 2
2 1
1 2
1 1
2 2
2 1
1 2
2 1
1 1
1 2
2 1
2 1
2 2
1 1
2 1
1 2
2 2
1 2
1 2
1 2
1 2
1 2
2 2
1 1
1 1
2 1
2 2
1 1
1 2
2 2
2 1
2 1
1 2
2 1
2 2
1 2
2 2
2 2
1 2
1 1
1 1
1 2
1 2
1 1
2 2
2 1
2 2
2 1
2 1
2 2
2 1
1 2
1 1
1 1
1 2
2 1
1 1
2 1
2 1
1 2
1 1
1 2
1 2
2 1
1 2
2 1
1 1
2 1
2 1
1 2
1 1
2 1
1 1
2 2
2 2
1 1
1 1
1 1
1 2
1 1
1 2
2 2
2 1
1 2
1 2
1 1
1 2
1 2
1 2
1 2
1 1
1 2
2 2
1 1
2 1
1 1
1 2
2 1
1 1
1 1
1 1
2 1
1 2
1 1
1 1
2 2
1 2
2 2
1 2
1 1
1 2
1 2
1 2
2 1
1 2
1 2
2 1
2 1
2 1
2 2
1 1
1 1
1 1
1 1
1 1
2 1
2 2
1 1
2 2
2 1
1 2
1 2
1 2
2 2
1 2
1 2
2 2
2 1
2 1
1 2
1 1
1 2
1 2
1 2
2 2
2 1
2 1
2 1
1 1
2 2
2 1
1 2
2 2
2 1
1 1
2 2
2 1
1 2
1 1
1 2
1 1
1 1
1 1
1 2
1 2
1 2
2 2
1 1
1 1
2 1
1 2
2 1
2 2
1 2
1 2
2 1
2 2
1 1
1 1
2 2
2 2
1 2
2 2
1 1
2 2
2 1
1 2
1 1
2 2
2 2
2 2
1 2
2 1
1 1
2 1
1 2
2 2
2 1
2 1
2 2
1 2
1 2
1 2
2 2
1 1
2 1
1 1
2 1
2 2
2 2
2 2
1 2
2 2
1 1
2 2
2 2
2 2
1 1
2 2
2 1
2 2
1 2
1 2
2 1
1 1
1 2
2 2
1 2
2 1
1 1
1 1
2 1
1 2
1 2
1 2
1 1
1 1
1 1
1 2
1 1
2 1
2 1
1 2
1 1
1 2
1 2
2 1
2 2
1 2
2 1
1 1
1 1
1 1
1 1
2 2
1 1
2 1
2 1
2 2
2 1
1 2
1 2
1 2
2 1
1 1
2 2
2 1
2 1
1 1
1 2
1 1
1 1
2 1
1 1
2 2
1 1
1 2
1 2
2 1
1 1
2 1
1 2
2 2
1 1
2 2
1 1
1 1
2 1
1 2
2 2
2 2
1 2
2 2
1 2
1 1
2 1
2 2
1 1
2 2
1 1
1 1
1 1
2 1
2 1
2 2
2 1
1 1
1 2
1 2
2 2
2 1
1 1
2 2
1 1
2 2
1 1
2 1
1 2
1 2
2 2
1 2
1 1
2 2
1 2
2 2
1 1
1 1
1 1
2 1
2 1
1 2
2 2
1 2
2 1
2 2
1 2
1 1
2 2
1 1
2 2
2 1
2 2
2 1
2 2
1 1
1 1
1 2
2 2
2 1
1 2
1 2
1 2
2 1
2 1
2 1
1 1
1 2
1 1
1 2
2 1
2 1
1 2
2 2
1 2
1 1
2 1
2 1
2 1
1 1
2 2
2 2
1 2
2 1
2 1
1 1
2 2
1 1
1 2
2 1
1 1
1 1
1 1
2 2
1 2
1 2
2 2
1 2
1 1
1 2
2 2
1 2
2 1
2 2
1 2
1 2
1 2
1 1
1 2
2 2
1 1
2 2
1 1
2 1
1 2
2 2
1 2
2 2
1 2
1 2
1 1
1 2
2 1
2 2
2 2
2 1
2 1
1 2
1 2
2 1
1 1
2 2
2 1
1 1
1 2
1 1
2 2
2 2
2 1
2 1
2 2
2 1
2 1
2 1
2 1
2 2
1 2
2 1
2 1
2 1
1 1
1 2
2 2
2 1
1 2
1 2
2 1
2 1
1 2
2 1
2 1
2 2
1 1
1 1
1 2
2 2
2 1
2 1
2 2
1 1
2 2
1 1
2 1
2 1
1 2
1 2
1 1
2 2
1 2
1 1
1 1
2 2
2 2
2 2
1 2
2 2
2 1
2 2
1 2
2 1
2 2
2 1
2 2
1 1
1 1
2 1
2 1
1 2
1 1
2 1
1 2
1 2
1 1
1 2
1 2
2 2
1 1
1 2
1 1
2 2
1 1
2 2
2 1
1 2
1 1
2 2
1 1
1 2
1 2
2 1
2 1
1 2
2 2
2 2
1 1
1 1
1 1
2 1
1 1
2 1
2 1
2 2
2 1
2 1
1 2
2 2
1 1
1 1
2 2
1 2
2 1
1 2
2 1
2 2
1 2
2 1
2 2
2 2
1 1
1 2
1 1
1 2
1 1
2 2
2 1
1 1
1 1
1 2
2 2
2 2
2 2
1 2
1 1
2 2
1 1
1 1
1 1
2 2
1 1
2 2
1 1
2 2
2 2
1 1
2 2
2 2
2 2
2 2
2 2
2 1
2 2
1 2
1 1
1 2
2 2
1 1
1 2
1 2
1 2
2 2
2 2
2 2
2 2
1 2
2 2
2 1
1 2
2 2
1 2
2 1
1 1
2 2
1 1
1 2
2 1
1 2
2 1
2 2
2 1
1 2
2 1
2 2
1 2
2 2
1 1
1 1
1 1
1 1
1 2
2 1
2 1
2 1
1 2
2 2
1 2
2 1
2 1
1 2
1 1
1 2
1 2
1 1
2 2
2 1
1 2
1 2
2 2
1 1
1 2
2 1
1 1
2 1
1 2
2 2
2 2
1 2
2 2
2 1
1 2
1 1
2 1
1 1
2 2
2 1
1 2
1 2
2 1
2 2
2 2
1 1
2 1
2 2
1 1
2 1
2 1
2 2
2 1
2 2
1 1
2 2
2 1
2 2
1 2
1 1
2 2
1 1
2 1
1 1
1 1
1 2
2 1
2 1
2 1
2 2
2 1
2 1
2 2
1 2
1 2
2 1
2 2
1 2
1 2
1 1
2 2
2 2
2 2
1 2
2 1
1 2
1 2
1 2
1 1
1 2
1 1
1 1
2 1
1 2
1 2
1 1
1 2
2 2
1 1
2 2
2 1
2 2
2 1
2 2
2 2
2 2
2 1
1 2
1 1
2 1
1 2
1 1
1 2
2 2
2 2
2 1
2 2
2 2
2 2
1 1
2 1
2 2
1 2
2 2
2 1
2 2
2 2
1 2
1 2
1 1
1 1
2 1
2 1
2 2
1 1
1 2
2 1
2 1
2 1
2 1
1 1
2 1
2 2
1 1
1 1
1 1
2 2
1 2
2 2
2 2
2 2
2 2
2 2
1 2
1 1
1 2
2 1
2 1
1 1
1 2
2 2
1 2
2 2
2 1
2 1
1 2
1 1
2 2
2 2
1 2
2 2
2 1
1 2
1 2
2 2
2 1
2 2
2 2
1 1
1 2
1 2
1 1
1 2
1 1
1 1
1 1
2 2
2 2
2 1
1 2
1 1
2 2
2 2
2 2
1 2
2 2
2 2
2 2
1 1
1 2
1 2
2 1
2 2
1 1
1 1
2 2
1 1
1 1
2 2
1 2
2 2
1 1
1 2
1 2
2 1
2 1
1 2
1 1
2 2
1 1
1 2
2 2
2 2
1 2
2 1
2 1
2 1
2 2
2 1
1 2
1 2
2 1
1 1
1 1
2 2
1 1
1 1
1 2
2 2
2 2
1 1
1 1
2 1
2 1
2 2
2 2
1 2
2 1
1 1
1 2
2 2
1 1
2 1
1 1
1 2
1 1
2 2
1 1
2 1
2 2
1 2
2 1
1 2
1 2
2 2
1 1
2 1
1 1
1 1
2 1
2 1
1 2
2 1
2 2
1 2
2 1
1 2
2 1
2 1
2 2
2 1
1 2
1 2
2 1
1 2
2 1
1 2
1 2
2 2
2 2
1 1
2 2
2 2
2 1
1 1
1 2
1 1
1 2
1 1
1 2
2 2
1 1
2 1
2 1
2 1
1 2
1 1
2 2
1 1
1 1
2 1
1 1
1 1
1 1
2 1
2 1
1 2
2 1
1 1
2 2
1 1
2 2
1 1
1 2
1 1
1 1
1 1
2 1
1 2
2 1
1 2
2 2
2 1
1 1
1 2
2 1
2 1
1 2
2 1
1 2
1 2
1 1
1 2
1 2
2 1
2 2
2 2
2 2
2 2
1 1
1 2
1 2
2 2
1 2
2 1
2 2
1 1
1 1
1 2
2 1
1 1
1 2
2 2
1 1
2 1
1 1
1 2
2 2
2 2
1 2
2 2
1 1
1 1
2 1
1 2
2 2
2 2
1 1
2 2
1 1
2 2
1 2
1 1
2 1
2 1
2 2
2 2
2 2
1 1
2 1
1 1
2 1
2 1
1 1
1 1
1 2
2 2
2 1
2 1
2 1
2 1
1 2
1 2
1 2
1 2
1 2
2 2
2 2
2 1
1 2
2 2
2 2
1 2
1 2
2 1
1 2
2 2
1 2
1 2
2 1
1 2
1 2
2 2
1 2
2 2
1 1
1 1
2 1
1 1
2 1
1 1
1 2
2 1
1 2
2 1
1 1
1 2
1 2
2 1
2 1
1 2
2 1
1 1
2 1
2 2
1 2
2 2
1 1
2 2
2 2
2 1
1 1
1 2
1 2
2 2
2 2
1 1
1 2
2 2
1 1
1 1
1 2
1 2
1 1
2 2
1 2
1 2
1 1
2 1
2 2
2 2
1 2
2 1
2 1
2 1
1 1
1 2
1 1
2 1
1 2
1 1
2 2
1 1
1 1
1 2
1 1
2 1
2 1
2 2
1 1
1 1
1 2
1 2
2 1
2 2
1 1
1 1
1 2
2 1
2 2
1 2
2 2
2 1
1 1
2 2
2 1
1 2
1 1
1 1
1 1
2 1
1 2
1 2
2 2
1 2
1 1
2 2
1 1
1 2
2 1
2 1
1 2
1 2
2 2
1 2
2 1
1 2
1 1
1 1
1 2
1 2
2 2
1 1
1 2
1 2
2 1
1 1
2 2
1 2
1 1
2 1
1 2
1 1
1 1
1 2
1 2
2 2
1 1
2 1
2 1
1 1
1 2
1 1
2 1
1 2
2 2
2 2
2 1
2 2
2 2
1 1
2 1
1 1
1 1
1 1
1 1
1 2
1 1
2 1
1 2
1 2
2 2
1 2
2 1
2 2
1 1
2 1
2 1
2 2
1 1
2 1
1 1
2 1
1 1
2 1
1 2
2 1
1 2
2 2
1 2
2 1
1 1
1 2
2 2
1 1
1 1
2 1
1 1
2 2
2 1
2 2
1 2
1 1
1 1
1 1
1 1
1 2
1 1
2 2
2 1
2 2
2 2
1 2
2 1
1 1
1 2
2 1
2 2
2 2
2 2
1 1
2 1
1 1
1 1
2 1
1 1
1 2
2 1
2 2
1 1
2 2
2 1
1 1
1 1
1 1
1 2
1 1
1 1
2 2
2 2
2 2
1 2
1 2
1 1
2 2
2 1
2 2
1 2
2 2
1 1
1 2
2 1
2 2
1 1
1 2
1 1
1 1
1 1
2 2
2 2
2 2
2 1
1 1
2 2
2 1
2 2
1 1
2 2
1 1
2 2
1 1
1 1
2 2
1 2
2 1
1 1
1 2
2 1
2 1
1 2
1 2
2 2
1 1
1 2
1 2
2 2
2 1
2 2
2 2
1 2
1 1
2 2
1 1
1 2
2 1
1 2
1 2
2 1
2 2
2 2
1 1
1 2
2 2
2 2
1 1
1 1
2 2
1 2
1 1
2 1
1 1
2 1
2 2
1 2
1 1
1 1
2 2
2 2
1 2
1 2
2 1
1 1
1 1
1 2
1 1
1 2
1 2
1 2
1 1
2 1
2 2
1 2
1 2
2 1
2 2
1 1
1 2
1 1
2 1
2 2
1 2
2 1
2 2
1 2
1 1
1 2
2 1
1 2
1 2
2 1
2 2
2 2
2 1
2 1
1 2
1 1
2 2
1 2
2 2
1 2
1 1
1 2
2 1
1 2
2 2
2 1
2 2
1 2
1 1
1 2
2 2
1 1
2 2
1 2
1 1
2 1
1 2
1 2
1 2
1 2
1 2
1 2
1 2
1 1
2 2
2 2
1 2
1 1
2 2
1 1
1 2
2 1
1 1
1 1
2 1
1 2
2 1
2 2
2 2
1 1
2 2
1 1
2 2
1 1
2 2
2 2
1 2
2 1
2 1
2 2
2 2
2 1
1 1
1 1
1 2
1 2
1 2
1 1
2 1
1 1
2 2
2 2
1 2
2 2
2 2
2 1
1 2
2 1
1 1
1 1
2 1
2 1
1 1
2 2
2 2
1 2
2 1
2 1
2 1
2 1
1 2
2 2
2 1
1 2
2 2
1 2
1 1
1 1
2 1
1 1
1 2
1 2
1 1
1 1
2 1
2 2
2 2
1 1
2 1
2 2
1 1
2 2
1 1
2 2
1 1
2 1
1 1
1 1
1 2
2 2
2 2
1 2
1 1
1 1
1 1
1 2
1 1
1 2
2 2
1 1
1 2
2 2
2 2
2 1
1 2
2 1
1 1
1 1
2 2
2 1
1 1
1 2
2 2
1 2
1 1
1 1
2 1
2 1
1 1
2 1
1 2
2 1
2 1
1 1
2 1
2 1
2 2
2 1
2 1
1 1
1 1
1 2
2 1
2 1
2 2
2 2
1 2
1 2
2 1
1 2
1 2
2 2
1 2
1 2
2 2
1 2
2 2
2 2
1 1
1 1
1 2
1 1
1 2
1 2
2 1
2 2
2 1
2 2
2 2
2 2
1 2
1 1
2 2
2 1
1 1
1 2
1 2
2 2
2 1
1 1
1 1
2 1
1 2
2 2
2 2
2 1
1 2
2 2
1 2
1 1
1 1
2 2
1 1
2 1
1 1
2 1
1 2
2 2
2 1
2 1
1 1
1 2
2 1
1 1
2 2
1 1
1 1
2 2
1 2
1 1
2 1
2 1
2 2
1 2
1 1
2 1
2 2
1 1
2 2
2 1
1 1
2 1
1 1
1 2
1 1
1 1
1 1
1 2
1 2
2 2
1 1
2 2
1 1
1 1
2 1
2 1
2 1
1 1
2 1
2 1
1 2
2 1
2 2
2 1
1 2
2 1
1 2
1 1
1 1
2 2
1 2
1 1
2 1
1 1
2 2
1 1
1 1
2 2
2 2
1 1
1 1
2 2
2 1
2 2
2 2
2 1
2 2
1 1
1 1
2 2
1 1
1 2
1 2
1 2
1 2
2 2
2 2
1 1
1 1
1 1
1 2
1 2
1 2
1 2
2 1
2 2
2 1
1 1
2 2
1 1
1 2
1 1
2 2
1 1
2 1
1 2
1 2
1 1
2 1
1 2
1 2
2 1
1 2
2 2
1 1
1 1
2 2
1 2
1 2
2 2
2 1
1 2
1 2
1 2
1 2
2 1
2 2
1 1
2 1
2 1
1 1
2 2
2 1
1 2
1 2
2 1
1 1
1 1
2 2
1 2
1 1
2 1
2 2
2 2
1 1
2 1
1 2
1 1
1 1
1 1
1 2
2 1
1 1
1 2
1 1
1 2
1 1
1 1
1 1
1 2
2 1
2 1
1 2
2 2
1 2
1 2
2 1
1 1
1 1
2 2
2 1
1 2
2 2
1 2
2 2
2 1
2 2
2 2
1 2
1 1
1 1
1 1
1 1
2 2
2 2
2 1
2 1
2 2
2 1
1 2
2 1
1 2
1 1
1 1
2 2
2 2
1 1
1 1
2 2
1 2
1 2
2 2
1 2
2 2
1 1
1 2
2 1
2 2
2 1
1 2
1 1
2 1
2 2
1 1
2 1
2 2
1 2
1 1
1 2
1 2
2 1
2 2
2 1
1 1
1 1
1 2
1 1
1 1
1 1
2 1
2 2
2 1
1 2
2 1
2 1
2 2
1 1
2 1
1 1
1 1
1 1
1 2
1 1
2 1
2 1
2 1
2 2
2 1
1 2
1 2
1 2
2 1
1 1
1 1
2 2
2 2
1 2
1 2
1 2
1 1
1 2
2 1
1 2
2 1
1 2
2 1
2 2
1 1
1 1
2 1
1 2
1 1
2 2
1 1
1 1
2 2
2 2
1 2
2 2
1 1
1 1
2 2
1 2
2 2
1 2
2 1
2 2
2 2
2 2
2 1
2 1
2 1
1 2
1 2
1 2
1 1
1 2
1 2
1 1
1 1
2 1
2 2
2 1
2 1
2 1
1 1
1 1
1 2
1 1
1 2
1 2
1 1
2 1
2 2
1 1
2 1
2 1
1 1
2 2
1 2
1 1
1 1
2 1
1 1
2 2
2 2
2 2
1 2
1 1
1 1
1 1
2 2
2 1
2 2
2 2
1 1
1 1
2 2
2 1
1 2
1 1
1 1
2 1
1 1
2 2
2 1
2 1
2 2
2 2
1 2
2 1
1 1
1 2
1 1
2 1
2 1
2 2
1 2
2 1
1 1
1 1
1 1
2 1
1 2
2 1
2 1
2 2
1 1
1 2
1 1
1 2
2 2
1 1
1 2
2 2
2 2
2 2
1 1
2 1
1 2
1 1
1 2
1 2
1 1
2 2
1 1
1 1
2 2
1 2
1 2
1 1
2 1
1 2
2 1
2 1
2 2
2 2
2 2
2 2
1 2
1 2
2 2
2 2
2 2
1 1
1 1
1 1
1 2
2 1
2 2
1 1
2 2
1 1
1 1
2 1
2 1
2 2
2 2
1 2
2 1
2 2
1 2
1 1
1 2
2 2
2 2
2 1
1 1
1 2
2 1
2 2
2 2
1 1
1 1
2 2
2 2
1 2
1 1
2 2
1 2
2 1
1 1
1 1
1 1
2 1
1 2
1 1
1 2
2 1
2 1
2 1
2 1
2 1
2 1
1 1
2 2
2 1
1 1
2 2
2 2
1 2
2 2
1 2
2 1
1 2
1 2
2 1
2 2
2 2
1 2
1 2
1 2
2 2
2 1
1 2
1 2
2 2
2 1
2 1
1 1
1 1
1 2
2 1
2 1
2 2
2 1
1 1
2 1
1 1
1 2
2 1
1 2
2 1
1 2
2 1
2 2
2 2
1 1
2 2
1 2
2 2
1 1
1 1
1 2
2 2
1 2
2 1
2 1
2 1
1 2
1 2
2 2
1 1
1 2
2 1
1 2
1 2
1 2
2 1
2 2
1 1
1 1
1 2
2 1
1 2
2 2
2 2
1 2
2 2
1 1
2 1
2 2
2 1
1 1
1 2
1 2
1 2
1 1
1 1
1 2
2 1
1 1
2 1
1 2
2 2
2 2
1 1
2 1
2 1
1 1
2 2
2 1
1 1
2 2
2 1
1 1
1 1
2 1
2 1
1 1
2 1
1 2
2 1
1 1
1 1
2 1
1 2
1 2
1 2
2 2
2 1
1 2
1 1
1 2
2 2
2 1
2 1
1 1
2 1
2 2
2 2
1 1
1 2
1 1
1 1
1 1
1 2
2 1
1 2
1 1
2 2
1 1
2 1
1 1
1 2
2 1
1 1
2 2
2 1
2 2
2 2
2 1
1 2
1 2
2 2
1 1
2 1
1 1
1 1
1 1
1 1
2 1
1 2
1 1
2 1
2 1
1 2
2 1
1 2
2 2
2 2
1 2
1 1
1 2
1 1
1 2
2 2
2 1
2 1
1 1
1 2
1 2
2 1
1 1
2 2
2 1
1 2
1 1
2 2
1 2
1 2
1 1
2 1
2 1
1 1
2 1
2 1
1 1
2 1
1 1
2 1
1 1
2 2
2 1
2 1
2 2
1 2
2 2
2 1
1 2
2 2
1 2
1 2
1 2
1 2
1 2
1 1
2 2
1 2
2 1
2 1
1 1
1 1
2 2
1 1
2 1
2 2
2 2
2 2
2 2
1 2
1 2
1 2
1 1
1 2
2 1
2 1
2 2
1 1
2 1
2 2
2 1
2 2
1 2
1 2
2 2
1 2
1 2
2 2
2 2
1 1
1 1
1 1
2 2
1 2
2 1
1 1
2 2
1 1
2 2
2 2
2 1
1 2
1 2
1 1
1 2
1 2
1 1
1 1
2 2
2 1
2 1
2 2
1 1
1 1
1 2
2 1
1 1
2 2
2 1
1 1
1 2
2 2
1 2
1 1
1 2
1 2
2 2
2 1
1 2
1 2
1 2
1 1
1 2
1 1
1 2
1 2
2 1
1 1
2 2
1 1
1 1
2 2
2 2
1 1
2 2
1 1
1 2
2 2
1 1
1 1
2 2
2 1
2 2
2 1
1 1
1 2
2 2
2 1
1 1
2 1
2 1
1 1
2 1
1 2
1 2
1 2
1 2
1 2
2 1
1 1
2 1
2 1
1 2
1 1
1 2
2 2
1 1
2 1
2 1
2 2
2 2
2 2
1 2
2 2
2 2
1 1
2 2
2 2
1 2
2 1
2 2
2 1
1 2
1 1
1 1
1 2
2 1
1 1
1 1
1 1
1 1
2 1
2 1
1 1
2 2
1 2
1 1
1 1
1 1
2 1
1 2
1 2
2 2
2 2
2 1
1 2
2 1
2 1
1 1
1 2
2 2
2 2
1 1
2 1
2 1
1 1
1 2
2 2
2 1
1 2
1 1
2 1
2 1
1 2
1 1
1 1
1 2
1 1
1 1
1 1
2 2
2 2
1 1
1 1
1 1
1 2
2 2
1 2
1 2
1 1
1 2
2 1
1 2
1 2
2 2
2 1
1 1
2 1
1 2
2 2
1 2
1 1
1 2
2 2
1 1
2 2
1 2
1 2
1 2
1 2
2 2
1 2
2 2
1 1
2 1
1 1
1 1
2 1
2 2
2 1
1 2
2 2
2 2
1 1
2 2
2 2
1 2
2 1
1 1
2 2
1 1
2 1
2 1
2 1
2 1
1 1
2 2
1 2
1 2
2 1
1 1
1 1
2 1
2 2
2 1
1 2
2 2
1 1
2 1
2 1
1 1
1 1
1 1
2 1
2 1
2 2
1 2
1 1
1 1
2 2
2 1
1 2
1 1
2 1
2 2
1 2
2 2
2 1
1 2
2 1
2 1
2 1
2 2
1 2
1 1
1 2
2 1
2 2
2 2
2 2
1 1
2 2
1 2
1 1
1 2
1 2
2 2
1 1
1 2
1 1
2 1
2 2
2 1
2 2
1 1
2 1
1 1
1 2
1 1
1 2
1 2
2 1
1 2
2 1
2 1
1 1
1 1
2 1
2 1
1 1
2 2
2 1
2 1
1 2
1 2
2 2
2 2
1 1
1 1
2 1
1 2
1 1
1 2
2 1
1 2
1 1
2 1
1 1
1 1
1 1
1 1
2 1
2 1
1 2
1 1
1 1
2 2
1 2
1 2
1 2
1 2
2 1
2 1
1 1
2 1
2 1
1 2
2 1
2 1
1 2
2 2
1 2
1 1
2 2
2 2
2 2
1 1
1 1
2 2
1 1
2 2
1 2
1 2
2 2
1 2
2 2
1 2
2 1
1 2
2 1
1 2
2 1
2 2
1 1
1 1
1 1
1 2
1 2
1 1
2 1
2 1
2 2
1 1
1 1
1 2
1 1
2 2
1 2
1 2
1 2
2 2
2 2
1 1
1 1
1 2
1 2
1 1
2 1
1 1
1 2
1 1
1 1
1 2
2 1
2 2
1 2
2 1
2 2
1 2
2 1
2 2
2 1
1 2
2 2
1 1
1 2
1 2
2 1
2 1
1 2
1 1
2 1
1 1
1 1
1 1
1 1
1 1
2 2
1 1
1 2
1 2
2 1
1 1
1 1
1 1
2 2
1 2
2 1
1 1
2 1
1 2
2 1
2 2
1 1
1 2
2 1
2 2
1 1
2 2
1 1
1 1
1 2
2 1
2 2
2 2
1 2
2 2
2 1
2 2
2 2
1 1
2 1
2 1
2 2
1 2
2 2
2 2
1 1
2 2
2 2
1 2
1 1
2 2
2 2
1 2
2 2
2 1
2 2
1 2
2 1
2 2
2 2
1 2
2 2
1 2
2 2
2 2
1 1
2 2
2 1
1 1
2 1
2 1
2 1
1 2
2 2
2 2
2 1
1 1
2 2
1 1
1 2
2 2
2 1
1 2
2 1
1 2
1 2
2 2
2 2
1 2
2 2
1 1
2 2
2 1
1 2
2 2
1 1
2 1
2 2
1 2
2 1
1 2
2 2
2 2
1 2
1 2
2 2
2 1
1 2
2 2
1 1
2 1
1 1
1 1
1 1
1 2
2 1
1 1
1 2
2 2
2 1
1 2
1 2
2 2
1 2
1 2
2 1
1 1
1 1
2 1
1 2
2 2
2 2
2 2
1 1
1 1
2 1
2 2
1 2
2 1
2 1
1 1
1 2
2 2
1 2
1 2
1 1
1 2
2 1
1 2
1 2
2 2
2 2
2 1
2 2
2 2
1 1
2 2
2 2
1 2
2 1
1 1
2 2
2 1
1 1
2 2
1 1
1 1
2 1
2 1
1 2
1 1
1 1
1 1
1 1
2 2
1 1
1 2
1 1
2 2
1 1
2 2
1 2
1 1
2 2
2 2
1 1
2 1
1 2
1 2
2 1
2 2
1 2
1 1
2 1
1 2
1 1
2 2
2 2
1 1
2 2
1 1
2 2
2 2
2 1
2 2
1 2
1 2
1 2
2 1
1 2
1 1
1 1
2 2
1 2
2 1
1 2
1 2
1 2
1 2
1 1
1 2
2 2
1 2
2 1
1 2
1 2
1 1
1 2
2 1
1 2
2 2
2 2
2 1
2 2
2 2
2 1
1 1
1 1
1 2
1 1
2 2
2 2
2 2
2 2
2 1
2 1
2 1
1 1
1 1
2 1
1 2
1 2
1 1
1 2
1 2
1 1
1 2
2 1
2 2
1 1
1 1
2 2
2 1
1 1
1 2
2 1
1 1
2 2
1 2
2 1
1 2
1 2
2 2
2 1
2 1
1 1
2 1
1 1
2 1
2 2
2 1
1 2
1 1
1 1
1 2
1 1
1 2
1 2
1 1
2 1
1 2
1 1
2 1
2 2
2 2
1 1
1 2
2 2
2 2
2 1
1 2
1 2
1 2
2 2
2 1
2 1
1 1
1 1
2 1
1 2
2 1
1 2
1 1
2 2
2 2
2 1
2 1
1 2
1 1
1 1
1 1
2 2
1 1
1 1
2 2
2 2
1 2
2 1
2 2
1 2
1 1
1 2
2 1
1 2
1 1
1 2
1 2
2 1
2 2
1 1
1 1
1 1
2 2
2 1
1 2
2 1
1 1
2 2
1 2
1 1
1 2
1 2
1 2
2 2
1 2
1 2
2 2
2 1
2 1
1 2
1 2
1 1
1 1
1 2
1 1
1 2
1 1
2 1
2 2
2 2
1 1
2 1
2 1
2 1
2 1
2 2
2 2
1 2
1 1
2 1
2 2
2 2
1 1
1 2
1 2
2 1
2 2
1 1
1 1
2 1
2 2
1 1
2 1
2 2
1 2
1 2
1 2
1 2
1 2
1 2
1 1
2 1
1 2
1 2
2 1
1 1
1 2
2 2
1 1
1 1
1 2
1 2
1 1
1 2
2 2
1 1
1 2
2 1
2 1
1 1
2 2
2 2
1 2
2 1
1 1
2 1
2 2
1 1
1 1
2 2
2 1
2 2
2 2
2 1
2 2
1 1
1 2
1 1
2 2
1 1
1 1
1 2
2 2
1 2
1 2
1 1
2 1
1 2
1 2
2 1
1 1
2 1
1 2
1 2
1 2
2 1
2 1
1 1
1 1
2 2
2 2
1 1
2 2
1 1
1 1
1 2
1 2
2 2
2 1
1 1
2 1
2 1
2 2
1 2
2 1
1 1
2 1
2 2
2 2
1 2
1 2
1 2
1 1
1 1
2 1
1 1
2 1
1 1
1 2
1 2
1 1
1 2
2 2
2 2
2 1
1 1
2 1
1 1
1 2
1 2
2 1
1 1
1 2
2 2
1 1
2 1
1 2
2 1
1 1
2 1
1 2
2 2
1 2
1 1
1 2
2 1
2 1
2 2
2 2
1 1
1 2
2 2
2 2
1 2
2 1
2 1
2 1
1 2
1 1
1 1
2 2
1 2
2 2
2 1
1 1
1 2
2 2
2 1
2 2
2 2
2 1
1 1
1 2
1 1
2 2
2 1
1 2
1 2
1 1
1 2
2 2
1 2
1 2
2 1
2 2
2 1
1 2
1 2
1 1
2 2
1 1
2 1
2 1
2 1
2 1
1 1
2 1
2 2
2 1
2 1
1 2
2 1
2 2
1 2
1 1
1 1
1 2
2 2
2 1
1 1
2 1
1 1
2 2
2 2
1 2
2 1
1 2
1 1
1 2
1 1
2 1
2 1
2 1
1 1
2 1
1 1
2 2
1 1
1 1
2 1
1 2
2 1
2 2
2 2
1 1
2 2
1 1
1 2
2 1
1 1
1 1
1 2
1 2
1 1
2 1
2 2
1 2
2 2
1 1
2 1
2 2
1 2
1 1
1 2
2 1
2 2
1 1
1 2
2 1
1 2
2 2
1 1
1 2
1 2
2 2
1 1
2 2
2 2
2 1
1 1
1 1
1 1
1 1
2 2
2 1
1 2
1 1
1 1
2 2
2 1
2 1
2 2
2 2
2 2
2 2
1 2
1 2
1 1
2 1
2 1
1 2
2 2
2 2
1 1
1 2
2 1
2 1
1 1
2 1
2 2
2 2
1 2
2 1
2 1
1 1
1 2
2 1
2 1
1 1
2 1
2 1
1 2
2 2
1 2
2 1
2 2
1 1
1 1
2 1
2 1
2 2
2 1
2 1
2 1
1 2
1 2
2 1
1 2
1 1
1 1
2 2
1 1
1 2
2 1
1 1
1 2
1 1
1 1
2 1
2 1
1 2
1 1
2 1
1 1
1 1
1 2
1 2
2 1
1 1
1 2
2 1
2 2
1 1
2 1
1 2
1 2
2 2
2 1
2 2
2 2
2 2
1 1
2 2
2 1
2 1
1 1
1 2
1 1
2 1
2 1
1 1
2 1
2 2
1 2
1 1
2 2
1 2
1 2
2 1
1 1
1 1
2 2
1 1
1 2
2 2
2 2
2 1
2 1
1 1
1 1
2 1
2 2
2 1
2 2
1 1
1 2
1 1
1 2
2 1
2 1
2 1
1 1
2 1
2 2
2 2
2 2
1 2
1 2
2 1
1 2
1 2
1 2
2 2
2 1
2 2
2 1
2 1
1 1
1 1
1 1
1 2
2 2
2 2
1 2
1 1
1 1
1 1
2 1
2 2
1 1
1 1
1 2
2 1
2 1
1 2
2 1
2 1
1 1
2 2
2 2
1 2
2 2
2 1
1 1
2 1
1 1
1 2
1 2
1 1
1 1
1 1
2 2
1 1
2 2
1 1
2 2
1 2
2 1
2 2
1 1
2 2
2 2
2 1
2 2
1 1
2 2
2 1
2 1
2 2
2 2
2 2
1 1
1 2
1 2
1 2
2 2
1 1
2 1
1 2
1 2
1 1
2 2
2 2
1 2
2 1
1 2
1 1
1 1
1 2
1 2
2 1
2 1
1 2
2 2
2 1
1 2
1 2
1 1
2 2
1 2
1 1
2 2
1 2
2 2
1 2
2 1
2 2
1 2
1 1
2 1
1 1
2 1
1 1
1 2
1 1
2 2
2 1
1 2
1 2
2 2
1 1
1 2
2 2
2 1
2 2
2 2
2 1
2 1
1 2
2 1
2 1
2 1
2 1
1 2
2 1
2 2
1 2
2 2
1 2
1 2
1 1
2 1
2 1
2 2
2 2
2 2
1 1
2 2
1 1
2 1
1 2
2 1
2 2
1 1
2 2
2 2
2 1
1 2
2 2
1 1
1 2
2 2
1 1
1 2
2 2
2 1
2 2
2 1
2 2
2 2
1 1
1 1
1 2
1 2
1 2
2 2
1 2
1 1
1 2
1 2
2 1
1 1
2 2
2 2
1 1
2 1
1 1
1 2
1 1
2 1
1 2
2 1
2 2
1 1
2 1
2 2
1 2
2 2
2 1
2 1
1 1
1 2
1 2
2 2
2 1
2 2
1 2
1 1
1 1
1 1
2 1
2 2
1 1
1 2
1 2
1 1
2 1
2 2
1 1
1 2
1 1
2 2
2 1
1 2
2 1
2 1
1 2
2 2
2 2
2 1
2 2
2 2
1 2
1 1
1 1
1 1
2 1
2 1
1 1
1 2
2 1
2 2
2 2
1 1
2 2
1 2
1 1
2 1
2 1
1 2
2 2
2 1
2 1
2 2
1 1
1 2
2 2
2 1
2 2
1 1
2 1
2 2
2 1
1 2
2 2
1 2
2 1
1 1
1 2
2 2
2 1
1 1
2 2
1 2
1 2
2 1
1 2
2 1
1 1
2 1
2 1
2 1
2 1
1 1
1 1
2 2
2 1
2 1
1 1
1 1
2 1
2 2
1 2
1 1
2 2
2 1
1 1
1 1
2 2
1 1
2 2
2 1
2 2
1 1
1 2
2 1
2 1
1 1
1 2
2 1
2 2
1 2
1 1
1 2
2 2
1 1
2 2
1 1
1 2
1 2
1 1
2 2
1 2
2 1
1 1
2 2
1 2
1 1
2 2
2 2
2 1
1 1
2 2
2 2
2 1
2 2
2 2
2 1
2 1
2 2
2 2
2 2
2 1
1 2
1 2
2 2
1 2
1 1
2 1
2 1
1 2
2 1
2 2
2 2
2 2
2 2
1 1
2 1
1 1
1 2
2 1
1 1
2 2
2 2
2 1
1 1
1 1
1 2
1 1
2 1
1 2
1 2
1 2
1 1
2 1
1 2
2 2
1 1
2 2
2 1
1 2
1 2
1 1
1 2
1 1
1 1
2 2
1 1
1 2
2 1
1 1
2 1
1 2
2 2
1 1
1 1
1 2
2 2
1 1
2 2
2 1
2 2
1 1
1 2
1 2
2 2
2 1
1 2
2 1
1 2
1 2
1 1
1 2
2 2
1 2
2 1
2 1
2 2
1 1
1 1
2 1
2 2
1 2
1 1
1 1
2 1
2 1
1 2
2 1
2 2
1 1
2 1
1 2
2 2
2 2
1 2
2 2
2 1
1 1
2 2
2 1
1 1
1 1
1 1
1 1
2 1
2 2
1 1
2 1
2 1
2 1
1 2
2 1
1 1
1 2
1 1
1 1
1 1
2 2
1 2
1 1
1 2
2 2
2 1
2 2
1 1
2 2
1 2
2 1
2 1
2 1
1 2
1 2
1 2
2 1
2 1
1 2
2 1
2 1
2 2
1 1
2 2
2 1
1 2
2 1
2 2
1 2
1 1
2 1
2 1
1 2
1 1
1 1
1 2
2 1
1 1
2 1
1 1
2 2
2 1
1 2
2 1
1 2
2 1
2 1
2 2
1 1
1 1
2 1
1 1
2 2
2 1
2 2
1 1
2 2
2 1
2 2
1 1
2 2
2 1
1 2
2 1
1 1
1 1
2 1
2 1
1 2
2 1
2 2
2 2
1 1
2 1
2 1
1 1
1 1
2 2
2 2
1 1
2 1
1 2
1 1
1 1
1 2
2 2
2 1
1 1
2 1
1 2
2 1
1 2
2 2
1 1
2 2
1 2
1 2
1 2
1 1
1 1
2 2
2 1
1 1
2 2
2 1
2 2
2 1
1 2
1 1
2 2
1 2
2 1
1 1
1 1
1 1
1 2
2 1
2 1
2 1
2 1
1 1
2 1
2 1
2 1
1 1
2 1
2 1
1 1
2 2
1 2
1 2
2 2
2 1
1 2
1 1
1 2
2 1
2 2
2 1
1 2
2 2
2 1
1 2
1 1
1 2
2 1
1 2
1 1
1 1
1 2
1 2
2 2
1 2
2 2
2 2
1 2
2 1
1 2
2 1
1 1
1 1
1 2
1 1
1 2
1 1
2 2
1 1
1 1
2 1
2 2
2 1
1 1
1 1
2 2
2 2
2 2
2 2
1 2
2 2
1 2
2 1
2 1
1 1
2 1
1 2
2 1
1 1
1 1
1 1
1 1
2 2
2 2
2 1
1 2
1 2
2 2
2 1
1 2
1 1
2 2
2 1
1 1
2 1
1 2
1 1
1 1
1 1
1 2
1 1
1 1
1 1
2 1
1 1
2 2
1 2
1 2
1 1
2 1
1 2
1 1
1 2
1 1
2 2
2 2
1 1
2 2
2 1
2 2
2 1
2 1
1 1
2 2
2 1
1 1
2 1
1 2
2 2
2 2
2 2
1 1
1 2
1 1
1 1
1 2
2 2
2 2
2 1
2 1
2 1
2 2
1 1
1 2
2 2
2 2
2 2
2 1
1 1
1 2
1 2
1 1
1 2
2 2
2 2
1 1
2 1
1 1
1 1
1 2
2 1
1 1
2 1
1 2
2 2
1 2
2 2
1 2
1 1
1 1
1 1
2 1
2 1
1 2
2 1
2 2
1 1
1 2
1 1
2 1
2 1
2 1
1 2
2 1
1 1
2 1
2 2
2 1
2 1
1 2
1 2
2 1
1 2
2 1
1 2
2 2
2 1
2 2
2 1
2 1
1 2
2 1
1 2
2 1
2 2
1 2
1 2
1 1
1 2
2 2
2 2
1 1
2 2
2 2
1 1
2 1
1 1
1 1
1 1
1 1
2 2
2 1
2 1
2 2
2 2
1 1
1 1
1 1
1 2
1 2
2 1
2 2
2 1
2 2
2 1
2 2
2 1
1 2
2 2
2 2
2 2
1 1
2 1
2 1
2 1
2 1
2 2
2 2
1 2
1 1
1 1
2 1
2 2
2 1
2 1
1 1
1 2
2 2
2 2
1 1
1 1
2 2
2 1
2 2
2 1
2 2
2 1
1 2
1 2
2 1
2 2
1 2
1 2
2 1
2 2
1 2
1 2
1 1
2 2
2 2
1 2
1 2
1 2
1 1
2 2
1 2
2 1
1 1
1 1
2 1
1 1
2 1
2 1
2 1
2 2
2 1
1 2
1 1
1 2
2 1
2 2
2 1
2 2
2 2
1 2
1 1
2 2
2 1
2 1
1 1
1 1
1 1
1 1
2 2
2 2
1 1
2 1
2 2
1 1
1 2
1 1
1 1
1 2
1 2
2 2
2 2
2 1
2 1
2 2
1 1
1 1
2 2
1 2
1 2
1 1
2 2
1 2
2 1
2 2
2 2
1 2
1 1
2 1
1 2
2 2
2 1
2 2
1 2
2 2
2 1
1 2
2 2
1 2
1 2
1 2
2 2
1 1
2 2
1 2
2 1
2 2
1 1
1 2
1 2
2 1
2 2
1 2
2 2
2 1
2 2
1 2
2 2
1 1
1 1
1 1
1 2
1 1
1 2
1 1
1 2
1 2
2 1
2 2
2 2
1 1
2 1
2 2
1 2
1 2
2 1
2 2
2 2
2 1
2 1
2 2
1 2
1 1
2 2
1 2
2 1
2 1
2 2
1 2
1 2
2 1
1 2
2 1
1 1
2 2
2 2
1 2
2 2
1 2
2 2
2 1
2 1
1 1
1 1
2 2
1 2
1 1
2 1
2 2
2 2
1 1
1 2
2 2
1 2
2 2
1 2
2 1
2 2
2 2
1 2
1 2
2 2
2 1
1 2
2 1
2 2
2 1
2 1
1 1
1 2
2 2
1 1
1 2
2 1
1 2
2 1
1 2
1 2
1 2
2 1
1 1
2 1
2 2
1 2
1 2
1 2
1 2
1 2
2 2
2 2
2 1
1 2
1 2
2 2
2 2
2 1
1 2
2 1
1 2
1 1
2 2
2 2
2 2
1 2
1 2
1 2
2 1
2 1
1 2
1 1
2 1
1 1
1 2
1 2
2 1
1 2
1 1
1 2
2 2
2 2
2 1
1 1
2 2
1 1
2 2
2 2
2 2
1 2
2 1
2 2
2 1
2 2
1 1
1 1
1 1
1 1
1 1
1 1
1 2
2 2
1 1
1 2
1 1
2 1
2 2
2 1
1 2
1 1
2 2
2 1
1 1
1 2
2 1
1 2
2 2
1 2
1 1
2 1
1 2
2 1
1 1
2 1
2 1
1 2
2 1
1 1
1 2
2 1
2 1
1 2
1 2
2 1
1 1
2 2
1 1
2 1
1 2
2 2
1 2
1 1
2 2
1 1
1 1
2 2
2 2
2 1
2 2
2 2
2 2
2 2
2 2
2 2
2 2
2 1
1 1
1 1
2 1
2 2
2 2
1 1
1 1
2 1
2 1
2 2
2 1
2 1
2 1
2 2
2 2
2 1
1 1
2 2
1 2
2 1
1 1
2 1
2 1
1 2
2 2
2 1
1 1
1 1
2 2
2 2
1 1
2 1
2 2
1 1
1 2
2 1
1 2
1 1
1 1
1 2
1 1
1 1
2 2
1 2
1 2
1 2
2 2
2 2
2 1
1 1
2 2
1 2
2 2
1 1
2 2
1 2
2 2
1 2
2 1
2 2
1 2
2 2
2 2
2 2
1 1
2 1
2 1
1 1
2 2
2 1
2 1
2 2
1 2
2 1
1 1
1 2
1 1
2 2
2 1
1 2
2 1
1 2
2 2
2 1
1 1
2 1
2 1
2 2
2 2
1 2
1 2
1 2
1 1
1 1
1 2
2 1
2 1
2 2
2 1
2 1
1 1
2 2
2 1
2 1
1 2
2 1
2 2
1 2
2 1
1 2
2 2
2 1
1 1
1 1
1 1
2 2
2 1
1 2
2 2
1 2
2 2
2 1
1 1
1 1
2 1
1 2
2 2
1 2
2 1
2 1
1 2
1 2
2 2
2 1
1 1
2 1
2 2
2 1
2 2
2 1
2 1
2 2
1 1
2 1
2 2
1 2
2 1
1 2
1 1
1 2
1 2
1 2
1 2
2 1
2 1
1 2
2 1
1 2
1 2
2 1
1 2
2 2
2 2
2 2
1 2
2 1
1 1
2 1
2 1
1 1
2 1
2 2
1 2
1 2
2 1
1 1
2 1
1 2
1 1
1 1
1 1
2 1
1 1
1 1
1 1
2 1
1 2
1 2
1 2
2 1
1 2
1 1
1 1
2 1
1 1
1 2
1 1
1 2
1 1
1 2
2 2
1 1
1 1
2 2
2 2
1 2
1 2
1 2
1 1
2 1
2 2
1 2
1 2
1 2
1 2
1 2
2 2
2 2
1 1
2 1
1 1
1 1
2 2
1 1
2 2
2 1
1 1
2 1
2 2
1 1
2 1
1 2
2 1
2 1
1 1
2 1
1 1
1 1
1 1
1 1
2 2
1 1
1 1
2 1
2 1
2 1
1 2
1 2
1 2
1 1
2 2
2 1
1 1
1 1
1 1
1 2
1 1
2 2
2 2
2 1
1 2
2 2
2 2
2 2
2 2
2 2
2 1
1 1
2 1
1 2
1 1
2 1
1 2
2 2
1 2
1 1
1 2
2 1
1 2
2 1
1 1
2 2
1 1
1 2
1 1
1 2
1 2
2 1
1 2
2 1
1 1
2 1
1 2
1 2
1 1
1 1
2 1
1 2
2 2
2 1
1 2
2 2
1 1
1 2
1 1
2 2
2 1
2 1
1 2
2 1
2 1
2 1
1 2
2 1
2 2
2 2
2 2
1 2
2 2
2 2
2 2
1 2
1 2
2 2
1 1
1 1
2 2
2 1
1 1
2 2
1 2
1 2
1 2
1 1
1 2
2 1
2 2
1 2
2 1
2 1
1 2
2 1
2 1
2 1
2 1
1 2
2 2
2 2
2 2
2 2
2 1
1 2
2 2
1 2
2 2
1 1
1 1
2 1
2 2
1 2
1 1
1 2
2 2
2 2
1 2
1 1
2 2
1 2
1 1
1 1
1 1
1 2
1 1
1 1
2 1
1 1
1 1
1 2
2 1
1 1
1 1
1 1
1 1
1 1
2 2
1 2
2 2
1 2
2 1
1 2
2 2
2 1
2 1
2 2
1 1
1 1
2 1
2 2
1 1
1 2
2 2
2 2
2 2
1 1
2 1
1 2
1 2
1 2
2 1
1 2
1 2
1 2
2 1
1 1
2 1
1 2
1 1
1 1
1 2
1 1
2 2
2 1
1 1
1 2
1 1
2 2
1 1
2 2
1 2
2 1
1 1
2 1
1 2
1 1
2 2
1 2
1 1
1 2
2 2
1 1
2 2
2 1
2 2
2 1
1 2
1 2
1 1
2 1
2 1
2 1
2 1
2 2
2 2
2 2
2 2
1 2
1 1
2 2
1 1
1 1
2 2
2 1
1 1
2 1
1 1
2 1
1 2
1 2
2 2
2 1
1 1
1 1
1 1
2 1
1 2
1 2
1 1
1 2
1 2
2 2
2 1
2 2
1 1
2 2
2 1
2 1
2 2
2 1
2 1
1 1
1 2
1 2
2 1
2 2
1 1
2 1
2 1
2 2
2 2
1 1
2 2
1 1
2 1
2 2
2 1
2 1
2 2
2 2
1 2
1 2
1 1
1 1
2 2
2 1
2 2
1 1
1 1
1 1
1 1
1 1
1 2
1 2
1 1
2 2
1 1
2 2
2 1
1 2
1 2
1 1
2 2
2 1
1 1
1 2
2 2
2 1
1 2
2 2
1 1
1 1
2 1
2 2
1 2
1 2
2 2
2 2
2 2
1 1
2 2
2 2
2 1
2 2
2 1
2 1
2 1
2 2
2 1
2 2
1 1
1 2
1 1
2 2
1 1
2 1
1 1
2 2
2 1
1 1
1 2
2 2
1 2
2 2
1 2
1 1
2 1
1 2
1 1
2 1
1 2
2 2
1 1
2 2
2 2
2 2
2 1
1 2
2 1
1 1
1 1
1 2
1 1
2 1
1 1
1 2
2 1
2 2
1 2
1 1
2 1
2 2
2 2
2 2
2 2
1 2
1 1
1 2
1 1
2 2
1 2
1 2
2 1
2 2
1 1
1 2
2 2
2 2
2 1
2 2
2 2
2 1
1 2
2 2
1 1
1 2
1 2
1 1
2 2
2 1
1 1
1 1
2 2
1 1
1 2
2 1
2 1
2 2
2 2
1 1
2 1
1 1
1 2
2 2
1 2
2 2
2 1
2 1
1 2
1 2
1 2
1 1
2 1
2 1
1 2
2 2
2 1
2 1
2 1
2 1
1 2
1 1
2 2
1 1
1 2
1 2
1 1
1 2
2 1
2 2
1 2
1 1
1 2
2 1
1 1
1 2
1 1
1 2
1 1
2 2
2 1
1 1
2 2
1 1
2 1
1 1
1 1
1 1
1 2
1 2
1 2
1 2
2 1
2 1
2 1
1 2
1 2
2 2
2 2
2 1
1 1
2 1
2 1
1 1
2 1
1 2
1 2
1 1
2 2
2 2
1 1
2 1
1 1
2 2
2 1
2 1
2 2
2 1
1 2
2 1
2 1
2 1
2 2
1 2
2 2
1 2
2 2
1 2
2 1
2 2
1 2
1 1
1 1
2 2
1 1
2 1
2 2
2 1
2 2
1 2
1 2
1 1
2 1
1 1
2 2
2 2
2 2
2 2
1 1
1 1
2 2
1 1
1 2
1 2
2 1
2 2
1 1
1 2
2 2
1 1
1 2
1 1
2 2
2 2
1 1
1 2
1 1
2 1
1 2
1 2
2 2
2 1
1 2
2 2
2 2
1 1
1 1
1 1
1 2
1 1
2 2
1 2
2 1
2 1
1 2
1 2
2 2
1 2
1 2
1 2
2 2
2 2
2 1
2 1
1 2
1 2
1 2
1 2
1 1
1 2
2 2
2 2
2 2
1 1
1 2
1 2
1 2
2 2
1 2
1 2
1 2
1 1
1 2
2 1
1 2
2 2
1 2
1 2
2 2
2 1
1 2
1 1
2 1
2 2
1 2
1 1
1 2
1 1
1 1
1 2
1 1
1 2
1 2
2 1
1 2
2 1
1 2
1 2
1 2
2 1
1 1
2 1
2 1
1 2
2 2
2 1
1 2
2 2
1 1
1 1
2 2
1 1
1 2
1 2
1 1
1 2
2 2
2 1
1 2
1 1
2 1
2 1
2 1
2 1
2 2
1 2
1 1
1 1
1 2
1 1
1 1
1 1
2 2
1 1
1 1
2 2
2 2
1 2
1 2
1 2
2 1
2 1
1 2
2 2
2 2
1 2
1 2
1 2
1 2
1 2
1 2
1 2
1 1
2 2
1 1
1 2
1 2
1 2
1 2
2 1
2 2
1 2
2 2
2 1
1 1
2 2
1 2
2 2
1 1
1 2
2 2
2 1
1 2
1 2
1 1
2 1
2 1
1 1
1 1
1 1
2 2
1 2
1 2
2 2
2 1
2 2
2 2
1 2
1 2
1 2
2 2
2 2
1 1
2 2
1 2
1 2
1 1
1 1
1 2
2 1
2 2
2 1
2 2
1 2
2 1
2 1
2 2
2 1
1 2
1 1
1 1
2 2
2 1
2 1
1 1
2 2
2 2
1 1
1 1
1 2
1 1
2 1
2 2
1 1
2 1
1 2
1 2
1 1
2 1
2 2
1 1
2 1
1 2
1 2
1 1
2 1
1 1
2 1
2 1
2 1
1 1
1 2
1 1
2 1
2 1
2 1
1 2
1 1
2 1
2 2
2 2
1 1
2 2
2 2
1 2
1 1
1 2
2 2
1 1
1 1
1 2
2 1
1 1
1 1
1 2
2 1
1 2
2 2
1 1
1 1
2 1
2 1
2 1
2 1
1 1
2 1
1 2
2 2
1 1
2 1
2 2
1 2
2 1
2 2
1 2
2 2
1 1
1 1
1 2
2 1
2 1
1 2
1 1
2 2
2 1
1 2
1 1
1 1
1 2
1 2
2 2
1 2
1 1
2 2
2 2
2 2
1 1
1 1
2 2
2 1
1 2
1 1
2 2
2 2
1 2
1 2
1 1
2 2
1 2
2 1
1 2
2 2
1 1
2 2
1 1
1 1
1 1
1 2
1 2
2 2
2 2
2 2
1 2
1 1
2 1
1 1
1 2
2 1
2 1
2 1
1 1
2 1
2 1
1 2
2 1
1 1
2 2
2 1
1 1
2 1
2 1
2 1
2 2
2 2
2 2
1 1
2 1
1 2
1 2
1 1
2 2
2 1
2 2
2 1
1 1
1 1
2 1
1 2
1 1
1 2
2 1
1 1
1 2
2 2
1 1
1 1
1 2
2 1
1 2
1 2
2 1
1 1
1 2
1 2
1 2
2 1
2 2
1 1
2 2
2 2
2 1
1 2
2 2
2 2
1 1
1 1
1 1
2 1
2 1
2 1
2 1
2 2
1 1
1 2
2 2
2 1
2 2
2 1
2 1
1 2
1 1
1 2
1 2
2 2
2 2
1 1
1 2
2 1
1 2
1 1
1 1
1 2
2 1
2 1
1 2
1 1
2 1
2 1
1 2
2 1
2 1
2 2
2 1
2 2
2 1
1 2
1 2
2 1
1 1
2 1
1 2
2 1
2 1
2 1
2 2
1 1
2 1
1 2
2 2
1 1
1 1
2 1
2 1
2 1
1 1
2 2
2 1
1 2
1 1
2 2
1 2
2 1
1 1
1 1
1 1
1 1
2 1
2 1
2 1
1 2
1 2
2 2
1 2
2 2
2 1
2 1
2 2
1 2
2 2
2 2
2 2
2 2
1 1
1 2
2 1
1 1
1 2
2 1
1 2
1 2
2 1
1 2
1 2
1 2
1 2
2 1
1 1
1 2
1 2
1 1
1 1
1 2
1 2
2 1
2 1
1 2
1 2
1 2
1 1
2 1
2 1
1 1
2 1
1 2
1 2
1 1
2 2
2 2
1 1
2 1
2 2
2 2
1 1
1 2
1 1
2 2
2 1
1 2
1 2
2 2
2 2
2 2
1 2
1 2
2 2
1 2
2 1
2 2
2 2
1 1
1 1
2 1
2 2
2 2
2 2
1 1
1 1
1 1
2 1
1 1
1 2
2 1
2 2
2 1
2 2
1 2
1 2
2 1
1 2
1 1
1 2
2 1
2 2
2 1
1 2
2 2
2 2
1 1
1 2
2 1
2 2
2 2
1 2
2 1
1 1
2 1
1 2
1 2
2 1
1 1
2 2
2 2
2 2
1 2
2 2
2 2
2 2
1 1
1 2
2 1
1 2
2 1
2 2
1 1
1 2
2 2
1 2
2 2
2 1
2 2
1 1
1 1
2 1
1 2
1 2
1 2
1 2
1 2
2 2
2 2
1 1
2 2
1 1
1 2
1 1
1 2
2 2
2 1
2 1
2 2
2 1
2 2
1 1
1 2
2 1
2 2
1 2
2 2
2 1
1 2
2 2
2 2
2 2
1 1
2 2
1 1
2 1
2 2
2 1
2 2
1 1
2 1
1 1
2 2
1 1
2 1
1 2
2 1
1 2
2 1
2 1
2 1
2 1
2 1
2 1
2 1
1 2
2 2
2 1
2 2
2 1
1 2
2 2
1 1
1 1
1 1
1 1
2 2
2 1
1 2
1 1
2 2
2 2
2 1
1 2
2 2
2 1
1 1
1 1
2 1
2 2
1 2
1 1
1 1
2 1
1 1
1 1
2 2
2 1
2 2
1 2
1 2
1 1
2 2
1 1
2 1
2 1
1 2
1 2
2 2
1 1
2 2
2 1
2 1
2 2
2 2
2 2
1 2
1 1
1 2
1 2
1 1
1 1
1 2
1 2
2 2
1 1
1 1
1 2
1 2
2 1
2 1
2 2
2 1
2 1
2 1
1 2
2 1
1 1
1 1
1 2
2 1
1 2
1 1
1 2
2 1
1 2
2 2
2 2
1 2
2 1
2 2
1 1
2 2
1 2
2 1
2 1
1 1
2 2
1 2
2 2
1 2
2 1
2 1
1 2
2 2
1 2
1 2
2 1
2 2
2 2
2 2
2 2
2 1
2 2
1 2
1 1
1 2
1 2
1 1
2 2
2 2
1 2
1 2
2 2
2 2
1 2
1 2
1 1
1 1
1 2
1 1
1 2
1 1
2 2
1 2
1 1
2 2
2 1
2 1
2 2
2 1
1 1
1 1
1 1
1 1
1 1
2 2
2 1
2 2
1 2
2 1
2 2
2 2
2 1
2 2
1 1
1 2
1 1
2 2
2 1
1 2
2 1
2 1
2 1
1 2
2 2
1 1
1 1
2 1
1 1
1 1
1 2
2 2
1 2
2 1
2 2
2 1
1 1
2 2
2 2
1 1
1 2
2 2
2 1
1 2
2 1
1 1
1 1
1 2
2 2
2 2
2 1
1 1
2 2
2 2
1 1
1 1
2 1
2 2
2 1
2 1
2 1
2 2
1 2
2 2
1 1
1 2
2 1
1 1
2 1
2 2
1 1
1 1
2 2
2 2
1 2
2 1
1 2
1 2
2 1
2 2
2 1
2 2
2 2
1 2
1 2
1 2
2 1
1 1
1 2
2 1
1 2
2 2
1 2
1 2
2 2
1 1
1 2
2 1
2 1
1 2
1 2
2 1
1 2
2 2
1 2
2 2
2 1
1 1
2 1
2 2
1 1
1 2
2 1
2 2
2 2
2 1
2 2
2 1
2 2
2 2
2 2
1 1
1 1
2 1
1 1
1 1
2 2
1 2
2 2
2 2
2 2
2 1
1 2
2 1
1 2
1 2
1 1
1 1
2 2
2 2
2 1
2 2
2 2
2 2
1 1
2 1
2 2
1 1
2 1
2 2
1 2
2 1
2 2
1 1
1 2
1 1
2 1
1 1
1 2
1 2
1 1
2 2
2 1
1 1
2 1
1 1
2 1
1 1
2 1
2 2
1 1
1 1
1 2
1 2
2 1
2 1
1 2
1 2
2 1
1 2
2 1
2 1
1 1
2 2
1 2
2 1
1 1
2 2
2 2
2 2
2 1
2 1
2 1
1 1
2 1
2 1
1 1
2 1
2 1
1 2
1 2
1 1
2 1
2 1
2 2
1 2
1 1
2 2
2 2
2 1
2 1
2 1
1 1
2 1
1 1
2 2
1 2
2 2
2 2
2 2
2 1
1 1
2 2
2 1
1 2
1 2
2 1
1 1
1 2
1 1
2 2
2 1
2 1
1 2
2 2
1 1
1 1
2 1
1 1
2 1
1 1
2 2
2 2
2 1
1 2
2 1
2 2
1 2
2 2
2 2
2 2
1 2
1 1
1 2
1 2
2 2
1 2
2 2
2 1
1 2
2 1
2 1
1 1
2 2
1 1
2 1
2 2
2 1
1 1
2 2
2 1
1 2
2 2
2 1
1 2
2 1
2 1
2 1
2 2
2 2
2 1
1 2
2 2
1 1
2 1
1 2
1 1
1 2
1 2
2 2
2 2
2 2
1 2
1 1
1 2
2 1
1 2
2 1
2 1
1 1
2 2
2 1
1 1
2 1
1 2
2 1
1 1
2 2
2 1
1 1
1 1
2 1
2 1
2 1
2 1
1 2
1 2
1 2
1 2
1 2
2 2
2 1
2 1
1 2
1 2
1 1
2 1
1 1
1 2
2 2
2 1
1 1
1 2
1 2
2 2
1 1
1 2
2 2
2 1
2 2
1 1
1 2
1 1
2 1
2 2
1 2
1 2
2 1
1 2
1 1
1 2
2 1
1 1
1 1
1 1
2 1
2 1
1 1
1 2
1 2
2 2
1 1
1 1
1 2
2 2
1 1
1 2
2 1
1 2
2 2
1 1
2 1
2 1
1 2
1 2
1 2
2 2
1 2
1 2
2 2
1 1
2 2
2 2
1 1
1 1
2 2
1 1
1 2
1 1
2 2
1 2
2 2
1 2
2 1
1 1
1 2
1 1
1 2
1 1
2 1
1 2
2 2
2 2
2 1
1 1
2 1
1 2
1 2
1 2
2 1
1 1
2 2
1 1
2 2
1 2
2 2
1 1
1 1
2 2
1 1
2 2
1 1
2 2
2 1
2 1
1 2
1 1
1 1
2 2
2 1
1 2
1 1
2 1
1 2
1 2
2 2
2 1
2 1
1 1
1 1
2 2
2 2
2 2
1 2
1 2
1 1
1 1
2 1
1 1
2 1
2 2
1 2
1 1
1 1
1 1
1 1
1 1
1 2
2 2
1 2
1 2
2 1
1 1
2 1
1 2
1 2
1 2
1 2
2 2
2 2
2 1
1 2
1 1
1 2
2 2
1 2
2 1
1 1
1 1
2 2
1 2
1 1
1 2
2 1
1 2
1 2
2 2
2 2
1 1
2 2
1 2
1 1
2 2
1 1
2 1
2 1
1 1
2 1
1 1
2 2
2 2
2 2
1 2
2 2
1 2
1 2
1 1
1 2
1 1
1 1
2 1
1 2
1 1
2 2
2 1
2 2
1 2
1 2
1 2
1 2
2 2
2 2
2 2
2 1
2 1
1 2
2 2
1 1
2 2
2 1
2 1
2 2
2 2
1 1
2 1
2 1
1 2
1 1
1 2
1 2
2 1
1 1
1 1
2 2
1 2
2 1
2 2
2 2
1 1
1 2
2 2
1 2
1 2
2 1
2 1
2 1
1 2
2 1
1 1
2 1
2 1
2 1
1 1
2 2
1 2
1 1
1 2
2 2
2 2
1 2
2 2
1 1
2 2
2 1
1 2
2 2
1 2
1 2
1 1
2 2
2 1
1 1
1 1
1 2
2 1
1 2
1 1
1 1
1 2
2 1
1 2
2 1
2 2
2 1
1 2
2 1
2 2
1 1
1 2
1 1
2 1
2 2
2 1
2 2
1 2
1 2
1 2
1 2
2 2
1 2
2 1
1 1
2 2
1 1
1 1
1 1
2 2
2 2
1 2
1 2
2 2
1 2
1 2
2 1
1 1
1 1
1 2
2 1
2 1
2 1
1 1
2 1
1 2
1 1
2 2
1 1
2 2
1 2
2 1
1 1
2 1
2 1
1 2
2 2
1 1
1 1
2 1
1 2
2 2
1 1
2 2
2 2
1 2
2 1
2 1
2 1
1 2
1 2
1 1
1 2
2 1
1 1
2 2
1 1
1 2
1 1
1 1
1 1
2 2
1 2
1 1
2 1
2 2
2 2
1 1
2 2
1 1
1 2
2 1
2 1
2 1
1 1
1 2
2 2
2 2
1 2
1 1
1 1
1 1
1 2
1 2
1 2
1 1
1 1
1 2
1 2
1 2
1 2
2 1
1 1
1 2
1 1
2 1
2 1
2 2
2 2
1 1
2 2
2 2
1 2
2 1
1 1
2 2
1 2
1 2
1 2
2 2
2 2
1 2
1 2
2 1
2 2
1 1
2 1
1 1
2 1
1 1
1 1
1 2
2 1
2 1
2 1
2 2
1 1
1 2
2 2
2 2
1 2
1 2
2 1
2 1
2 2
2 2
2 2
1 1
2 2
1 2
1 2
2 1
1 1
2 1
2 1
2 1
2 1
2 2
1 1
2 2
1 2
2 1
1 2
2 1
2 2
2 1
1 1
1 2
2 1
2 2
1 2
1 1
1 2
1 2
1 2
2 2
1 1
1 2
1 1
2 2
2 1
1 1
2 2
1 1
2 2
2 1
2 2
1 2
1 1
1 1
1 1
2 2
2 1
1 1
1 1
1 1
2 2
1 1
2 1
1 2
2 2
2 1
1 1
2 1
2 2
2 2
1 2
1 1
2 2
2 2
2 1
1 1
1 2
1 1
1 2
2 1
2 2
1 1
1 2
1 1
2 2
1 2
2 2
2 1
1 1
2 2
1 1
2 1
2 2
1 1
1 1
1 1
1 2
2 1
1 2
1 2
1 1
2 2
2 1
2 1
2 2
1 2
1 1
1 1
1 1
1 1
2 1
1 2
2 2
2 1
2 1
1 2
2 2
1 2
1 1
2 2
1 1
2 1
2 2
1 1
2 2
2 1
1 1
1 1
1 1
2 1
1 2
2 1
2 2
2 1
2 1
1 2
1 1
1 1
2 2
1 2
1 1
2 2
1 1
2 1
1 2
1 2
2 2
2 1
1 1
1 2
2 2
2 1
2 1
2 1
2 1
1 2
2 1
1 1
2 2
1 2
2 2
2 2
1 1
1 1
2 2
2 2
1 2
2 1
1 1
1 2
1 1
1 2
2 1
1 2
2 1
1 1
1 1
1 2
2 1
2 1
2 2
1 2
2 1
2 2
2 2
1 1
2 1
1 2
2 1
1 2
2 1
2 1
1 2
1 2
2 1
1 2
1 1
1 1
1 1
1 1
2 1
2 1
2 1
2 1
2 1
2 1
2 2
2 2
1 1
2 1
2 1
2 2
1 1
1 2
2 2
1 1
1 1
2 2
2 2
2 2
1 2
1 1
1 2
2 1
2 2
1 2
1 1
1 1
1 2
2 1
2 1
1 1
2 2
2 2
2 2
1 1
2 1
1 1
1 2
1 1
2 1
2 2
2 1
1 1
1 2
1 2
2 2
2 2
2 2
1 1
1 1
2 2
2 2
1 1
1 1
1 1
2 1
2 2
1 1
2 2
1 2
1 2
1 2
1 1
1 2
2 1
1 2
1 1
2 2
2 1
1 2
1 2
1 2
1 1
1 2
2 2
1 2
2 1
1 2
1 2
2 1
1 1
2 1
1 1
1 2
1 1
1 2
2 1
2 2
1 2
1 1
2 2
1 1
1 1
1 1
2 2
1 2
2 2
2 1
1 2
2 2
1 2
2 1
2 1
2 2
1 1
1 2
1 1
1 2
1 1
1 1
2 2
2 2
1 2
2 1
1 2
2 1
2 2
1 2
1 1
1 1
1 2
2 2
2 1
1 1
2 1
2 2
1 1
2 1
2 1
2 1
1 1
1 2
1 2
1 2
2 1
2 2
1 1
1 1
1 1
1 2
1 2
1 2
2 2
1 2
2 2
2 2
2 2
1 1
1 1
1 2
2 1
2 1
1 1
2 2
1 2
2 2
2 2
1 1
1 1
2 1
2 2
2 2
2 1
2 1
1 1
1 2
1 1
2 1
1 2
1 2
1 1
2 1
1 1
2 2
2 1
2 2
2 1
2 2
1 1
2 2
1 1
1 2
1 1
1 1
2 2
2 2
2 1
2 2
2 2
2 2
2 2
1 1
2 1
1 2
1 1
2 2
1 1
2 2
2 2
1 2
2 2
2 1
2 1
1 1
1 1
2 1
1 1
2 2
2 1
1 2
1 1
1 1
1 2
1 1
1 1
1 2
2 1
1 2
1 1
1 2
2 2
2 2
2 1
1 1
1 1
2 2
1 1
2 2
2 2
1 2
2 1
1 2
1 2
2 2
1 2
2 1
2 1
1 1
1 1
1 1
2 1
2 1
2 2
1 1
2 2
1 1
1 1
2 1
1 1
1 1
1 1
2 1
1 2
1 2
2 2
2 1
1 2
1 2
2 1
1 1
2 1
1 2
2 2
1 1
2 2
1 1
1 2
1 1
2 1
1 1
2 1
2 1
2 1
1 2
1 2
1 2
1 2
2 1
2 1
2 2
1 1
1 1
2 1
2 1
1 1
1 1
2 2
1 2
1 1
2 2
2 2
2 1
2 1
1 2
2 2
1 1
2 1
1 1
1 1
2 1
1 1
1 2
2 1
1 2
1 1
1 2
1 1
1 2
1 1
2 1
2 2
2 2
1 1
1 2
2 2
2 2
1 2
1 1
1 1
1 1
1 2
2 1
1 1
2 2
1 1
1 1
1 1
2 2
2 2
2 2
2 2
1 2
2 1
1 2
2 1
2 1
2 2
2 1
1 2
2 2
2 1
2 2
2 2
1 2
2 2
1 1
2 2
1 2
2 1
2 1
1 1
1 1
2 1
2 2
2 1
1 1
2 2
2 1
2 1
1 2
2 1
2 2
1 1
2 1
1 1
2 1
1 1
1 2
2 1
2 1
1 1
1 1
2 1
2 2
1 2
2 2
1 1
1 1
2 1
2 1
1 1
2 1
1 1
2 1
1 1
1 2
2 1
1 2
1 1
2 2
2 2
2 2
1 1
2 2
2 2
1 2
2 2
2 1
2 1
2 1
1 1
1 1
2 2
1 2
1 1
2 2
1 1
1 1
2 2
1 2
2 2
1 2
1 1
2 1
2 2
1 2
2 2
2 2
2 1
1 1
1 1
1 2
2 1
1 1
1 2
1 2
1 2
2 2
1 1
2 2
1 1
1 1
2 2
1 1
1 2
2 2
2 1
2 2
1 2
2 2
2 1
1 2
1 2
1 1
2 2
2 2
1 1
2 2
1 1
2 2
2 1
1 1
2 2
2 2
1 1
1 2
2 2
1 2
2 2
1 1
2 1
2 2
1 1
2 1
2 1
1 1
1 2
1 2
2 2
1 1
2 2
1 1
1 2
2 2
1 1
1 1
1 2
1 2
2 2
1 2
1 2
1 1
1 1
2 1
2 2
2 1
1 1
1 2
2 1
2 2
1 1
1 2
1 2
2 1
2 1
2 1
1 2
2 2
2 2
2 2
2 2
2 1
2 2
1 1
2 2
1 2
1 2
2 1
1 1
2 2
1 2
2 2
1 1
2 2
2 1
1 1
1 2
1 2
1 2
2 2
2 2
1 2
1 2
2 2
2 1
2 2
2 1
1 1
1 1
2 2
2 1
2 2
1 1
2 2
1 1
1 2
1 2
1 2
1 2
1 2
1 1
2 2
2 2
1 2
2 1
2 2
1 1
1 1
2 1
1 2
2 2
1 1
1 2
2 2
1 2
2 2
1 2
2 1
1 1
2 1
1 1
2 1
1 2
1 2
2 1
2 1
2 2
1 2
2 1
2 1
2 1
2 1
2 2
2 1
2 1
2 2
2 2
1 1
1 2
1 2
2 1
1 2
1 1
2 2
2 1
1 2
1 2
1 1
1 1
1 1
2 2
1 2
1 2
2 2
1 1
1 2
1 1
2 1
2 2
2 1
2 1
2 2
1 1
1 1
1 2
2 1
2 1
1 2
2 2
2 1
2 1
2 1
1 2
2 2
1 1
1 1
2 2
1 1
2 1
2 2
1 2
1 2
1 1
1 1
1 2
1 1
1 1
2 2
1 1
2 1
1 2
2 1
2 1
1 2
1 2
1 2
1 2
1 2
1 1
2 1
1 2
1 1
2 1
1 2
2 1
2 2
1 2
2 1
2 1
2 2
1 1
1 1
1 2
2 1
2 1
1 2
2 1
2 1
2 1
2 1
2 2
2 2
2 1
2 2
1 2
1 2
1 1
2 2
1 2
2 2
1 1
2 1
1 1
1 1
2 1
2 2
2 1
2 1
1 1
2 1
2 1
2 1
2 2
2 2
1 2
2 1
2 2
1 1
2 2
1 1
1 1
1 1
2 1
2 2
2 1
1 2
2 2
1 1
2 2
2 1
1 1
2 1
2 2
2 1
1 2
1 1
2 2
2 1
2 1
1 1
1 1
2 1
2 1
1 1
2 1
1 2
2 2
1 2
1 2
2 1
1 2
1 2
1 1
1 1
1 1
2 1
1 2
1 1
1 1
2 2
1 1
2 1
1 2
2 1
2 2
2 1
2 1
2 2
1 2
1 1
2 2
1 1
2 1
1 1
2 2
1 2
1 2
2 1
1 2
2 1
2 2
2 2
2 2
1 2
2 1
1 1
2 2
1 2
2 2
1 1
2 2
1 1
2 2
2 1
1 1
1 1
1 2
1 1
1 2
2 2
1 2
2 2
2 2
1 1
2 1
1 2
2 2
1 1
1 1
1 2
1 1
1 2
1 2
2 1
2 2
1 1
1 1
1 1
2 1
2 2
1 1
2 2
1 1
2 2
2 2
2 2
2 2
1 1
2 2
1 2
1 1
2 1
1 1
1 2
1 1
1 1
1 2
1 2
2 2
1 2
2 1
1 1
2 2
1 1
2 1
1 2
1 2
2 1
1 2
1 2
1 2
2 2
2 1
1 1
1 1
1 1
1 1
2 2
1 1
1 2
2 2
2 1
2 2
2 1
2 2
2 2
2 1
1 2
2 1
1 1
2 1
1 1
2 1
1 2
2 1
2 2
1 1
1 1
1 1
1 2
1 2
2 1
2 1
2 1
1 1
1 2
1 1
2 1
1 1
1 1
2 2
2 1
2 1
2 1
1 1
2 2
2 2
2 1
2 2
2 2
2 2
1 2
1 1
2 1
2 1
2 1
2 1
1 1
1 2
2 2
1 2
1 1
2 2
1 1
1 2
2 1
1 1
2 2
1 2
1 2
1 2
2 2
2 2
1 2
1 2
1 2
1 2
1 2
1 2
2 1
2 2
2 1
1 2
2 1
2 1
2 2
2 2
2 2
2 2
2 2
2 1
1 1
2 2
1 1
2 2
2 2
2 1
2 1
2 1
2 2
2 1
2 2
2 1
2 2
2 1
2 2
2 1
2 2
2 2
1 2
2 1
1 2
1 1
1 2
2 1
1 1
1 1
1 2
2 2
1 1
1 2
2 2
1 1
2 1
2 2
2 2
2 1
2 2
2 2
1 2
1 1
2 2
2 1
1 2
1 2
2 2
1 1
1 2
2 2
1 1
1 1
1 1
2 2
1 2
1 2
2 1
2 2
2 2
2 2
1 2
2 2
1 1
1 1
2 2
2 2
1 1
1 1
1 2
2 1
1 1
1 1
1 1
1 1
2 1
1 1
2 2
2 1
2 1
2 2
1 2
1 1
1 2
2 2
1 1
2 1
2 2
2 1
2 1
2 1
2 1
2 2
1 1
2 2
2 1
2 1
2 2
2 2
1 1
1 1
1 2
1 2
2 1
2 1
1 1
2 2
2 2
1 2
1 1
1 1
1 1
1 1
1 2
1 2
2 2
2 2
1 2
2 2
2 1
2 2
2 1
1 2
1 2
2 2
2 2
2 1
1 2
1 1
1 1
1 1
2 2
2 2
2 2
2 2
2 1
1 2
2 1
1 1
2 1
2 2
1 2
2 1
1 2
1 2
1 1
2 1
1 2
2 1
2 2
2 2
2 2
2 1
2 2
2 2
1 1
2 1
1 1
1 2
1 1
2 2
1 1
1 1
2 1
1 2
2 1
1 1
1 2
2 2
2 2
2 2
2 2
1 2
1 2
2 2
2 1
2 2
1 2
1 1
1 1
1 1
1 1
2 2
1 2
2 1
1 1
1 2
1 2
1 2
2 2
2 2
2 1
2 2
2 2
2 1
2 1
1 1
1 1
2 2
2 1
1 1
1 2
2 1
2 2
2 1
2 1
1 2
2 2
1 1
1 1
2 1
1 1
2 1
1 1
1 2
1 1
1 2
2 2
2 2
2 1
2 1
1 1
2 1
2 2
1 1
1 2
1 2
2 1
2 2
2 2
2 1
1 2
2 1
1 2
2 1
1 2
2 1
2 2
2 2
1 2
1 2
2 2
1 1
1 2
2 1
1 2
2 1
2 1
2 2
2 1
1 1
1 2
1 2
1 1
1 1
2 1
2 1
1 2
1 1
1 2
2 2
2 2
2 1
2 1
1 2
2 2
2 2
2 2
2 1
1 2
2 2
1 1
2 1
1 2
2 1
2 2
1 1
2 1
2 2
1 1
2 2
1 2
2 1
1 1
1 2
2 1
1 1
2 2
2 2
1 2
2 2
1 1
1 2
1 2
1 2
2 2
1 1
1 1
2 1
1 1
1 1
2 2
2 2
1 2
2 1
1 1
2 1
2 1
2 2
1 2
2 1
2 1
2 2
1 2
2 2
2 1
1 2
2 2
2 2
1 1
2 1
1 1
2 2
2 2
1 1
1 2
1 1
2 1
2 2
1 2
2 1
2 1
1 2
2 2
2 1
1 2
2 2
2 2
1 1
1 2
1 1
1 1
2 1
1 1
1 2
2 1
1 1
1 1
1 2
1 1
2 2
1 2
2 1
2 2
2 2
2 2
1 2
1 2
2 2
2 1
2 1
2 1
2 2
2 2
1 2
1 1
1 1
2 1
1 1
2 2
2 2
1 1
2 2
2 1
2 2
2 2
2 2
2 2
1 2
1 1
2 1
1 1
2 2
2 1
2 2
1 2
1 1
1 2
2 2
2 2
2 2
2 1
1 1
2 1
1 2
1 2
2 1
1 1
2 2
2 2
1 1
1 2
1 2
1 1
2 1
2 2
2 2
2 2
2 1
1 2
2 1
1 1
1 2
2 1
2 2
2 2
2 2
2 1
1 1
2 1
2 2
2 1
1 2
2 1
1 2
2 1
2 2
2 1
2 2
1 2
1 1
1 2
1 2
2 2
1 1
1 2
1 1
2 1
1 2
2 1
1 2
2 2
1 1
1 1
1 2
2 2
1 1
1 1
2 1
2 2
2 1
1 2
1 2
2 1
2 2
2 2
2 2
1 1
2 2
2 1
2 1
2 2
2 1
1 2
2 2
2 2
1 2
2 1
1 1
2 1
1 2
1 1
1 1
2 2
1 2
2 1
1 1
1 2
2 2
1 2
2 1
1 1
1 1
2 2
2 1
2 1
2 1
1 2
1 1
1 2
1 2
2 1
1 1
1 1
1 2
2 1
2 1
1 1
1 1
1 2
1 2
2 2
1 2
2 1
2 2
2 2
2 2
2 2
2 1
1 1
1 2
1 2
2 1
2 2
1 2
2 1
2 1
1 1
2 1
2 2
2 2
2 2
1 1
2 2
2 2
1 1
2 1
2 1
2 1
2 2
2 1
1 1
2 1
1 1
2 1
2 1
1 1
2 1
2 1
2 1
1 1
1 2
2 1
1 1
2 2
1 1
2 2
2 2
1 2
1 2
1 2
2 2
1 1
2 1
2 1
1 2
2 1
1 2
2 1
2 1
1 2
1 2
2 2
2 1
1 1
1 2
2 2
2 2
2 2
2 1
2 2
2 1
2 2
1 2
2 1
1 2
2 2
2 1
1 1
1 1
2 2
2 2
1 1
1 2
1 2
1 1
1 2
2 2
2 2
2 2
2 2
1 1
2 1
1 1
1 2
1 1
1 1
2 2
2 2
1 2
2 1
2 2
1 1
2 2
2 1
1 2
2 2
1 1
1 2
1 1
1 2
2 1
2 1
2 2
1 2
1 2
1 2
1 2
1 2
1 1
1 1
1 2
2 1
1 1
2 1
2 1
1 2
2 2
1 1
2 2
1 2
2 1
2 2
1 2
1 1
1 1
1 1
1 1
2 2
1 1
1 1
2 1
2 1
2 1
2 1
2 1
1 1
1 1
1 1
1 2
2 1
1 1
2 1
2 1
2 2
1 2
1 2
2 1
2 1
1 2
1 2
2 1
2 2
1 2
2 1
1 2
2 2
2 2
1 2
1 1
1 1
1 1
2 1
1 2
2 2
2 1
2 2
2 1
1 2
1 2
1 1
1 1
1 1
1 2
2 1
1 1
1 1
2 1
1 1
1 2
2 1
1 2
2 2
2 2
2 1
1 1
1 2
2 1
2 1
2 1
2 1
2 2
1 1
2 1
2 1
1 1
2 2
1 1
2 2
1 1
2 1
2 2
2 2
1 2
2 1
1 2
1 2
1 2
2 1
1 1
2 2
1 2
2 1
2 2
2 1
2 2
1 2
1 1
1 2
1 1
1 2
1 1
2 1
2 1
2 2
1 1
2 1
2 1
2 2
2 2
1 2
1 1
2 2
1 1
1 2
2 2
2 2
2 1
2 1
2 1
1 2
1 2
1 1
1 2
1 2
1 1
2 1
2 1
2 1
2 2
2 1
1 2
2 1
1 1
1 2
2 1
1 1
2 1
2 2
1 2
2 2
2 1
1 1
2 2
1 2
2 1
1 1
2 1
2 2
1 2
2 1
2 1
2 1
2 1
2 2
2 1
1 2
2 1
2 2
2 2
1 2
1 1
1 1
2 1
2 1
1 1
1 2
2 1
2 1
1 2
1 1
1 1
1 1
1 1
1 2
2 1
2 2
2 1
2 1
1 2
2 2
2 1
1 2
2 1
1 2
2 2
1 1
2 1
1 1
1 2
1 2
1 2
2 1
2 2
2 1
2 1
2 2
2 2
1 2
2 1
1 2
1 1
1 2
1 1
2 1
2 2
1 2
2 1
1 1
1 2
1 2
2 1
2 1
2 1
2 1
1 1
1 1
2 2
1 1
2 1
1 1
2 1
1 1
2 2
2 1
2 2
1 2
1 2
2 1
2 1
2 1
2 2
1 1
2 1
1 2
1 2
1 2
2 2
1 2
2 2
1 2
1 2
2 1
2 1
2 2
1 1
2 2
1 2
2 1
1 1
1 1
2 1
2 1
2 1
1 1
1 1
2 2
2 2
2 2
1 2
2 2
2 2
1 2
2 1
2 1
1 2
2 2
2 1
2 2
2 1
2 1
2 2
1 2
2 1
1 2
2 1
2 2
2 1
1 2
1 2
1 1
2 2
1 2
1 2
1 2
1 1
2 1
1 2
1 1
2 2
1 1
1 2
2 1
2 1
1 2
2 1
1 2
1 1
2 1
1 2
1 2
2 2
1 2
2 1
1 1
1 1
2 2
2 1
1 1
2 2
1 2
2 1
1 2
2 1
2 2
2 2
2 2
1 2
1 1
2 2
2 1
1 1
1 1
1 1
2 1
2 1
2 2
2 2
2 2
2 2
1 1
1 2
1 2
2 2
1 2
2 1
2 2
2 1
1 1
2 1
1 2
1 1
1 2
1 1
2 1
1 1
2 2
2 1
2 2
2 2
2 2
2 1
1 1
2 1
2 1
2 2
2 1
1 2
1 1
1 2
1 1
1 1
2 2
2 2
2 1
1 1
2 2
1 2
1 1
2 2
1 2
1 1
1 1
1 1
2 2
1 1
1 1
2 2
1 2
2 2
2 2
2 1
1 2
2 1
2 2
2 1
1 2
1 2
2 2
2 2
1 2
1 1
2 2
2 2
1 1
1 1
2 1
2 1
2 2
2 2
2 1
2 1
1 1
2 1
1 2
2 2
2 2
2 2
2 1
1 2
1 1
1 2
1 2
2 1
2 2
2 1
2 2
1 2
2 2
2 2
2 2
1 2
2 2
1 2
1 2
1 2
2 1
2 1
1 1
2 2
1 1
2 2
1 2
2 2
1 1
1 1
1 2
1 1
2 2
1 1
1 2
1 1
2 2
1 1
1 2
1 1
2 2
2 2
1 2
2 1
2 1
1 2
2 1
1 2
1 1
2 1
1 2
1 1
1 2
1 1
2 1
2 1
1 2
1 2
2 1
1 1
2 2
1 1
1 2
1 2
1 2
1 1
1 2
2 2
2 1
2 1
1 1
1 2
1 2
1 2
1 1
2 1
1 2
2 1
1 2
2 2
2 1
2 2
1 1
1 1
2 1
1 1
1 2
2 1
2 1
1 2
1 1
1 1
2 2
1 2
2 2
1 1
1 2
1 1
2 2
2 1
2 2
1 2
2 1
1 1
1 2
2 2
1 2
2 2
1 1
2 2
1 2
2 2
2 1
2 1
2 1
1 1
1 1
1 2
1 1
1 1
1 2
2 2
2 2
2 2
1 1
2 2
2 2
1 1
1 1
2 1
1 2
2 1
1 2
2 2
1 1
1 2
2 1
2 1
2 2
2 1
1 1
1 2
2 2
2 2
1 1
2 1
1 1
1 2
2 1
1 2
2 2
1 1
1 2
2 1
2 2
1 2
1 2
2 2
1 1
1 1
2 1
1 1
1 1
1 2
1 1
2 2
1 2
1 2
1 2
2 2
1 2
1 2
2 1
1 2
1 2
2 2
1 1
1 2
1 1
2 2
2 1
1 1
2 2
1 2
2 1
2 2
2 1
2 2
2 2
2 1
2 1
1 1
2 1
2 2
2 2
2 1
2 1
2 2
1 2
2 2
1 1
1 2
1 1
2 1
1 2
1 2
1 2
1 2
2 1
1 1
1 2
2 1
2 2
1 1
1 1
1 2
2 2
1 2
1 2
2 1
1 1
1 1
2 1
2 2
2 2
2 2
2 1
1 1
2 2
2 1
1 1
2 2
1 1
1 2
1 2
1 2
2 2
2 2
2 1
1 2
1 1
2 2
1 2
1 1
2 2
2 2
1 2
1 1
2 1
1 1
1 2
1 1
1 1
1 2
2 2
1 2
2 1
2 1
2 2
1 2
1 1
1 2
2 2
1 1
2 2
1 2
2 2
2 2
1 1
2 2
2 2
1 2
1 1
1 2
1 1
2 2
1 1
2 2
2 1
1 2
1 2
1 1
1 1
1 2
1 1
2 1
1 2
1 1
1 2
1 1
2 1
2 1
1 1
2 1
1 2
2 2
1 1
1 1
2 1
2 1
1 1
1 2
2 2
2 2
2 2
1 1
2 2
1 2
1 1
1 1
2 2
1 1
2 2
2 1
2 1
1 1
2 2
1 1
1 2
1 2
2 2
2 1
1 2
2 1
2 1
1 1
1 1
2 2
2 1
2 1
2 1
2 1
1 2
2 1
2 1
2 1
2 1
2 2
2 2
1 1
1 2
1 1
1 2
2 2
2 1
1 1
1 2
2 2
1 2
1 2
2 2
2 2
1 2
1 2
1 2
2 1
1 1
2 1
1 1
2 2
1 1
2 2
2 1
1 1
1 1
1 2
2 1
2 1
2 1
1 1
2 2
2 2
1 1
2 2
2 2
1 2
2 1
1 2
2 2
2 1
1 2
1 1
1 1
2 2
1 2
2 2
1 1
1 1
2 2
2 1
2 2
2 1
1 2
2 1
1 2
2 1
1 2
2 1
1 2
1 1
2 2
1 2
1 1
1 1
1 1
1 2
1 2
2 2
2 2
1 2
1 1
1 1
1 2
2 2
2 1
1 2
1 2
2 2
1 2
1 1
2 1
1 2
1 1
2 1
2 1
1 1
2 1
2 1
1 2
1 2
2 2
1 2
1 2
2 1
2 2
1 1
1 2
2 1
1 1
2 1
2 2
1 1
1 1
2 2
1 2
2 1
2 1
2 1
1 2
2 1
2 2
1 2
1 1
2 1
1 1
2 1
1 1
1 1
2 1
2 1
1 1
2 2
1 1
2 1
2 1
2 1
1 2
2 1
1 1
1 2
1 2
2 2
2 2
2 2
1 1
2 1
1 1
2 1
1 1
2 2
1 1
1 1
2 2
1 1
2 2
1 1
1 1
2 1
1 2
2 2
2 1
1 1
1 2
1 2
2 1
1 2
1 1
1 1
1 1
2 1
1 2
1 2
2 1
1 1
2 1
1 1
2 2
1 2
2 1
2 1
2 2
2 1
2 1
1 1
1 2
2 1
2 1
2 2
2 1
1 1
2 2
1 2
1 2
2 2
2 1
2 1
1 1
2 1
1 1
1 2
1 2
1 2
2 2
1 1
1 1
2 1
2 2
2 2
1 2
1 2
2 1
2 1
2 2
2 1
1 1
1 1
2 1
1 1
2 2
1 1
2 2
1 2
2 2
1 2
2 2
1 1
1 2
1 1
2 1
1 2
2 2
2 1
2 1
2 2
2 1
1 1
2 2
1 2
2 2
1 1
1 1
2 2
1 1
2 2
1 1
2 1
1 1
2 2
1 2
1 1
1 2
1 1
2 2
1 2
2 1
1 2
1 1
1 2
1 2
1 2
1 2
1 1
2 2
1 2
2 1
1 1
1 1
1 2
2 1
2 2
2 1
1 2
2 2
2 2
1 1
2 1
1 2
1 2
1 1
2 2
2 2
1 1
2 2
1 1
2 1
2 2
1 2
2 1
2 2
2 2
1 2
1 2
2 1
2 1
2 1
2 1
1 2
1 2
1 2
2 2
2 2
1 1
1 2
1 1
2 2
2 1
1 2
1 1
1 1
2 2
1 1
1 2
1 1
1 1
2 1
1 1
2 1
2 2
2 2
2 2
2 2
2 1
1 1
2 2
2 1
2 2
1 1
1 2
2 2
2 1
2 2
1 1
1 1
1 2
1 2
2 1
2 2
2 2
2 2
1 2
2 1
1 2
2 1
2 1
1 2
1 2
2 2
1 1
2 2
1 1
2 2
1 2
2 1
1 1
2 2
1 1
1 1
2 1
1 2
2 1
2 2
1 1
1 1
1 1
1 2
1 2
2 2
2 2
2 2
1 2
2 2
2 2
1 1
1 1
2 2
1 1
2 1
1 1
1 1
2 2
1 2
2 1
1 1
1 2
2 1
1 1
2 2
2 1
2 2
2 2
1 2
2 2
1 2
2 2
2 1
1 1
1 1
2 1
2 2
2 2
1 2
2 1
1 2
1 1
1 2
2 2
1 2
2 2
1 2
1 2
2 1
2 1
2 1
1 2
1 1
2 2
1 1
1 2
1 1
2 2
2 2
1 2
1 1
2 1
2 2
1 1
1 2
1 2
1 1
2 1
2 1
2 2
2 2
1 2
1 1
2 2
1 1
2 1
1 2
1 2
2 2
2 1
2 2
2 2
2 1
1 2
2 2
1 1
1 1
1 1
2 1
1 1
2 2
1 2
2 2
1 1
1 2
2 2
1 2
1 2
2 2
1 2
2 2
1 1
1 1
2 2
2 2
2 1
2 2
1 2
1 2
1 1
2 1
1 1
1 1
1 1
2 1
1 1
1 1
2 1
2 2
1 1
2 2
2 2
2 2
2 2
2 1
1 2
1 1
1 1
1 1
1 1
1 2
1 1
1 1
2 1
2 1
1 2
1 2
1 1
2 2
1 1
1 1
1 2
2 1
1 2
1 2
1 1
2 1
1 1
2 1
1 2
1 2
1 1
1 2
2 2
2 1
1 1
1 1
2 1
2 1
1 1
2 2
2 1
2 2
2 2
2 2
1 1
1 2
1 1
2 2
2 2
1 2
2 2
1 2
1 2
2 1
2 1
2 1
1 1
2 1
2 1
1 2
2 1
1 1
1 1
1 1
1 1
1 2
2 1
1 2
2 2
2 2
2 1
2 2
1 2
2 2
2 2
2 1
2 2
1 1
2 2
1 2
2 2
1 2
2 1
2 2
1 1
2 2
1 2
2 1
2 2
2 1
2 1
1 2
2 1
1 1
2 2
1 1
2 2
1 1
2 1
2 2
2 2
1 1
2 2
2 2
2 1
1 2
1 2
1 2
1 1
1 1
1 2
1 1
2 2
1 2
1 2
2 2
2 2
1 1
1 2
1 1
2 2
2 2
2 1
1 2
2 1
1 2
1 1
1 2
1 2
2 1
2 1
2 1
1 1
1 1
2 2
1 2
1 2
2 2
1 2
2 2
1 2
1 1
2 1
1 1
2 1
2 1
2 2
1 1
1 1
1 2
2 1
2 1
1 2
2 1
1 2
1 2
2 1
1 2
2 1
2 2
2 1
2 2
2 1
1 1
2 1
1 1
1 2
1 1
2 1
2 1
2 1
1 2
1 1
1 2
1 2
2 2
1 2
1 2
2 1
2 1
1 1
2 2
1 2
2 1
2 2
1 2
1 1
1 2
1 1
2 2
2 2
2 2
1 2
2 2
2 1
2 2
2 2
2 1
2 1
1 2
2 1
1 2
1 2
1 1
2 1
2 1
1 1
1 2
2 2
1 1
2 2
2 1
2 1
1 2
1 1
2 1
1 1
2 2
2 1
1 2
2 2
1 2
2 1
1 2
1 2
1 2
1 2
2 1
1 1
2 1
2 1
2 1
1 1
1 1
2 1
2 2
2 1
2 1
1 1
2 2
1 1
2 1
2 2
1 2
1 1
1 1
2 1
1 1
2 1
1 2
2 1
2 1
1 2
1 2
2 2
1 2
2 1
2 2
1 2
1 1
1 1
2 2
2 2
1 1
2 1
2 2
2 2
1 2
1 2
1 2
2 2
1 1
2 2
1 2
1 1
1 2
1 2
2 2
2 2
2 2
1 2
1 1
1 2
1 2
2 2
1 1
1 1
2 2
2 2
1 1
2 2
2 2
1 1
2 1
1 1
2 2
1 2
1 1
2 1
2 2
2 1
2 2
1 2
2 1
2 1
1 2
1 2
2 2
1 1
1 1
1 1
1 1
2 1
1 2
2 1
1 1
2 2
2 2
1 2
1 2
1 2
1 2
2 2
2 2
1 1
1 1
2 1
2 1
1 1
2 1
1 2
2 2
2 2
1 1
1 2
1 2
2 1
2 1
2 2
1 2
2 1
1 2
2 1
2 2
1 2
1 2
2 1
2 1
1 2
2 1
1 1
1 1
2 2
1 2
1 1
1 2
1 2
1 2
2 2
1 2
2 2
2 1
2 2
1 1
1 1
2 2
2 2
2 1
2 1
2 2
1 1
1 1
2 2
1 2
2 1
1 2
2 2
1 1
2 1
1 1
1 2
2 2
1 2
1 2
2 2
1 1
2 1
2 2
1 1
2 2
2 2
2 2
1 1
1 2
1 2
2 2
1 1
1 2
2 2
1 2
2 1
2 1
1 1
2 2
2 1
2 2
1 2
2 2
2 1
1 2
2 1
1 1
2 2
2 2
2 2
2 2
1 2
2 1
2 2
1 1
1 1
2 1
1 2
1 2
1 2
2 1
1 1
2 1
2 2
1 1
1 1
1 1
1 1
1 2
1 1
2 2
2 2
1 1
2 1
1 1
1 2
2 1
2 1
2 2
1 2
2 2
2 1
1 2
2 1
2 1
1 1
2 1
2 1
2 1
2 1
1 1
1 2
1 2
2 1
2 2
2 2
1 2
2 2
2 1
2 1
1 2
2 2
1 2
1 2
2 2
1 2
2 1
1 2
2 2
2 1
1 2
1 1
2 2
2 2
2 1
1 2
2 2
1 1
1 1
2 2
2 1
1 2
1 1
1 2
2 1
1 2
1 2
2 1
2 1
1 1
2 1
1 2
1 2
2 2
1 2
1 1
1 2
2 2
1 1
1 2
2 1
1 1
2 1
2 2
1 2
2 2
1 1
2 2
2 1
2 2
1 2
2 1
1 2
2 2
1 2
2 2
1 2
2 1
2 1
1 2
2 1
1 2
2 1
1 2
2 2
1 1
1 2
2 2
1 1
2 1
2 2
1 2
2 2
1 2
2 2
2 2
2 1
1 2
1 1
2 2
1 1
2 1
2 1
2 1
2 2
2 2
2 2
1 1
2 1
1 1
2 2
1 1
1 2
2 2
1 1
2 1
1 2
1 1
1 2
1 2
2 1
2 1
2 2
1 1
2 1
1 2
2 1
1 1
2 1
1 2
2 2
2 1
2 1
2 1
1 2
1 1
2 2
1 2
2 1
2 1
2 1
2 2
2 1
2 1
2 1
1 1
1 2
1 2
2 1
1 2
2 1
1 1
1 2
2 2
1 2
1 2
1 1
2 1
2 1
2 2
2 2
2 1
1 2
1 1
1 1
2 2
2 1
2 2
1 2
1 2
2 1
1 2
1 2
1 1
1 1
2 2
1 2
2 1
1 1
1 2
2 1
1 2
2 1
2 1
2 2
1 2
1 1
1 1
2 1
1 1
1 1
1 1
1 1
1 2
1 2
1 2
2 2
2 1
1 2
1 2
1 1
1 2
2 1
1 1
1 2
1 1
1 2
2 1
2 1
2 2
2 1
1 2
1 1
1 1
2 2
1 1
2 2
2 2
2 1
2 2
1 1
1 1
1 2
2 1
2 2
2 2
1 2
2 1
2 2
2 2
1 1
2 2
1 1
2 2
2 2
1 2
2 2
2 1
1 1
2 2
1 2
1 1
2 1
2 1
2 2
2 2
2 2
2 2
1 2
2 2
1 1
2 1
1 2
1 2
2 2
1 2
2 2
2 2
1 1
2 1
2 2
1 2
1 1
1 2
2 2
2 2
2 2
2 2
2 2
1 1
1 1
2 1
2 1
2 2
2 2
2 1
1 2
1 1
1 2
2 2
1 2
2 2
2 1
1 1
2 2
1 1
1 1
2 1
1 2
1 2
2 2
2 2
2 2
2 2
1 1
2 1
2 2
1 1
1 1
1 1
2 2
2 1
1 2
2 1
1 1
1 2
1 2
2 1
2 2
1 1
2 2
2 1
2 2
1 2
2 1
2 1
1 1
1 1
1 2
1 2
2 1
1 2
1 2
2 2
1 2
2 1
2 1
2 1
1 2
2 1
2 1
2 1
1 1
1 1
1 1
2 2
2 1
1 1
1 2
2 2
2 2
1 2
2 1
1 1
1 1
2 1
1 1
1 2
2 1
1 2
2 1
1 2
2 2
1 2
1 1
2 1
2 2
1 2
1 2
2 2
1 1
2 1
1 2
2 1
1 1
2 1
2 2
1 1
2 1
1 2
2 1
2 2
1 2
2 1
2 2
1 2
2 2
2 2
2 1
1 1
2 1
1 2
2 1
2 1
1 2
1 1
2 2
1 2
2 2
2 1
2 2
1 2
1 2
1 2
2 1
2 1
1 1
2 1
1 2
1 2
1 2
1 1
1 1
1 1
1 1
2 1
1 2
2 1
1 2
1 2
1 2
1 2
2 2
2 2
1 1
1 2
1 2
2 1
2 2
2 2
2 2
2 1
2 1
2 2
1 2
1 2
2 2
1 2
2 2
1 2
2 1
2 1
1 2
1 2
2 1
1 1
2 2
1 2
1 1
1 2
1 2
2 2
2 2
2 1
2 1
2 1
2 1
2 1
1 1
2 1
1 2
1 2
1 1
2 2
1 1
1 1
1 1
2 1
1 2
1 2
1 2
1 2
1 2
1 1
1 1
2 2
1 2
1 2
2 2
2 2
1 2
1 1
2 2
2 1
1 2
2 2
2 2
1 1
2 2
1 1
2 1
2 1
1 1
1 1
2 2
2 2
2 2
2 1
2 2
2 1
1 1
1 2
2 2
1 2
2 1
1 2
2 1
1 2
1 2
1 1
1 2
2 2
2 2
2 2
2 1
1 1
1 1
1 1
2 2
1 2
2 1
1 1
1 2
1 2
2 1
1 2
1 2
1 2
2 2
2 1
1 1
1 1
2 2
2 1
2 2
2 2
1 2
2 1
2 1
1 1
2 2
2 2
2 1
2 1
2 1
2 1
2 1
2 1
1 2
1 1
1 2
1 1
1 1
2 1
2 2
2 1
1 2
2 1
1 2
2 1
1 2
2 2
2 2
2 1
1 1
2 2
1 2
1 1
2 2
1 2
1 1
2 1
1 2
2 1
2 1
2 2
1 1
2 1
1 1
2 2
1 2
1 1
1 2
1 1
1 2
1 2
2 1
1 1
2 1
2 2
1 1
2 1
2 1
1 1
2 1
2 2
1 2
2 2
2 2
1 2
1 1
1 1
1 2
1 1
1 2
2 1
2 2
2 2
2 1
1 1
2 1
1 2
2 2
2 2
2 1
2 1
2 1
1 1
1 1
1 2
2 1
2 1
2 1
1 1
1 2
1 1
2 2
2 2
1 1
2 2
2 1
2 1
2 1
1 2
2 1
1 1
1 2
1 1
1 1
1 1
1 1
1 1
2 1
1 1
1 1
1 2
2 2
1 1
1 1
2 1
1 1
2 2
2 2
1 2
2 1
2 2
2 1
2 2
2 2
1 1
1 2
1 1
2 1
2 1
2 2
1 1
1 1
2 2
2 2
2 2
1 1
2 1
2 2
1 2
1 1
2 2
1 1
1 2
1 2
2 2
2 1
2 2
2 2
2 2
2 2
2 1
2 2
1 2
1 1
2 2
2 2
1 2
1 1
1 1
1 1
1 2
1 1
2 2
2 2
1 1
2 2
1 2
2 2
2 2
2 2
2 2
1 1
1 1
2 1
1 2
1 2
1 1
2 2
2 1
2 2
1 1
2 2
1 2
1 1
2 1
2 2
2 1
2 2
2 1
1 1
1 2
1 1
1 2
1 1
2 2
1 2
1 2
1 2
2 1
1 1
2 1
2 1
2 2
2 2
1 2
2 2
1 2
2 1
2 2
2 1
1 1
1 2
2 1
2 1
2 2
2 2
1 2
1 1
2 2
1 1
1 1
2 2
2 2
1 1
1 2
1 1
2 1
1 1
1 2
1 2
1 1
1 2
1 1
2 2
1 2
1 1
2 1
1 2
2 2
2 1
1 1
1 2
2 2
1 1
1 2
1 2
2 2
2 2
1 1
1 1
1 2
1 2
1 2
2 2
1 2
2 2
2 2
1 1
2 2
1 2
1 2
1 1
2 2
1 2
1 1
1 2
1 2
2 2
2 1
1 1
2 1
1 1
1 2
1 2
2 1
2 2
1 2
2 1
1 1
2 1
2 1
2 2
1 1
2 2
1 2
1 1
1 1
1 2
1 2
2 1
2 2
2 2
1 1
2 2
1 1
2 2
2 2
2 2
1 2
1 1
1 1
2 2
1 1
1 2
1 2
2 2
1 2
2 2
2 1
2 1
2 2
1 2
1 1
2 1
1 1
1 1
2 2
2 1
2 1
1 2
2 2
2 2
2 1
2 1
1 2
1 1
1 2
2 2
2 2
1 1
1 2
2 1
2 1
2 1
1 1
1 2
2 2
2 1
1 1
1 2
1 2
2 2
2 1
2 2
1 2
1 2
1 2
1 1
2 1
2 2
1 1
2 1
1 2
1 1
2 2
2 2
1 2
1 2
2 1
2 1
2 2
1 2
2 2
1 2
1 1
1 1
1 2
1 2
1 2
2 1
2 2
2 1
1 1
2 1
1 2
1 2
2 2
2 2
1 1
1 1
1 1
1 1
2 2
2 1
1 1
1 1
1 1
2 1
2 2
2 1
1 2
1 2
1 1
1 1
2 2
2 2
1 1
2 1
2 1
2 2
1 1
2 1
2 1
2 2
2 1
2 1
2 1
1 2
2 2
1 2
2 1
2 1
2 1
2 2
1 2
1 2
1 1
2 1
1 1
1 2
1 1
1 1
1 2
2 2
2 2
2 2
1 2
2 1
1 2
2 2
1 2
1 1
2 1
2 1
2 1
1 2
2 1
2 1
2 1
1 2
2 2
2 1
1 1
2 1
2 1
2 2
2 2
2 1
1 1
2 2
2 1
1 1
2 2
2 2
2 1
2 2
2 1
1 1
1 1
2 2
1 2
1 1
2 1
2 2
2 2
1 2
2 2
2 2
1 1
2 1
2 1
2 2
2 1
2 1
1 1
1 1
1 2
1 2
2 2
1 1
2 1
2 2
2 2
2 1
1 1
2 1
1 2
2 1
1 2
2 2
2 2
1 1
1 2
1 1
2 2
2 2
2 1
2 2
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 2
2 1
2 1
1 2
1 2
1 2
2 1
2 1
2 1
2 2
1 1
1 1
1 1
2 1
1 1
2 1
2 2
1 1
2 1
1 2
1 1
2 2
1 1
2 1
2 1
2 2
2 2
1 2
1 2
2 1
1 1
2 2
2 1
2 2
1 2
1 2
2 2
1 2
1 2
2 2
2 1
2 1
2 1
2 1
2 1
1 1
2 2
1 2
1 1
1 1
2 2
2 2
2 2
1 1
1 2
1 2
1 1
1 1
2 1
2 1
1 2
2 2
2 1
2 1
1 2
1 2
1 2
1 1
1 1
2 2
1 1
2 2
2 1
1 1
1 2
1 2
2 1
1 1
1 1
1 2
1 2
1 2
1 1
2 2
1 2
2 1
1 2
2 2
2 2
2 2
2 1
2 2
1 2
1 2
1 2
1 2
2 2
2 2
1 1
2 2
1 2
2 1
1 1
2 2
2 1
1 2
1 2
2 2
1 1
1 2
2 2
2 1
1 2
1 1
2 2
1 1
2 1
1 1
2 2
2 1
1 2
2 1
1 2
1 1
2 1
2 2
1 2
1 2
2 2
2 1
1 1
2 2
1 1
2 1
1 1
2 2
2 1
2 2
2 2
2 2
2 2
1 2
2 1
1 2
2 2
2 2
1 2
2 1
1 2
1 2
2 1
1 2
2 2
1 2
1 1
1 2
1 2
1 1
1 2
2 2
1 2
2 2
2 2
2 2
2 1
1 1
1 2
2 2
1 2
2 2
2 2
2 2
2 2
1 2
1 1
2 2
1 2
2 2
2 1
1 1
1 2
1 1
1 1
1 1
2 1
2 1
1 2
1 1
1 1
2 2
1 1
2 1
2 2
2 2
2 2
1 1
1 2
1 2
1 1
1 2
2 2
2 1
2 1
2 2
1 1
2 1
1 2
2 1
1 2
2 2
2 1
1 1
2 1
1 2
1 2
1 2
1 1
1 2
1 1
1 2
1 1
1 2
1 1
1 1
2 2
2 2
1 1
1 2
2 1
1 1
1 1
2 1
2 1
1 2
2 2
1 2
2 1
1 1
1 1
2 2
2 2
2 1
1 1
1 1
2 2
1 1
1 1
2 1
1 1
1 1
2 2
1 1
1 2
1 2
1 2
2 2
2 2
2 1
2 1
1 1
1 1
1 1
1 1
2 2
1 1
2 2
2 2
1 1
2 2
2 1
1 2
2 1
2 2
1 2
2 2
1 2
2 2
1 2
1 1
2 1
2 2
1 1
1 1
2 1
2 2
1 1
2 2
1 1
1 2
1 2
2 2
1 2
1 2
2 2
1 2
1 1
1 2
2 1
2 1
2 1
2 2
1 1
2 1
2 2
1 2
2 1
2 1
2 2
2 1
2 2
1 1
2 1
2 2
1 2
2 2
1 2
2 1
1 1
2 2
1 1
1 2
1 1
2 1
2 2
1 2
2 2
2 1
2 2
1 2
1 2
2 2
2 1
2 1
2 2
1 2
2 2
1 1
2 2
2 1
2 2
1 2
1 1
2 1
1 2
2 2
1 1
1 2
1 2
1 2
1 1
2 1
1 2
2 1
2 1
1 1
2 2
1 1
2 2
2 1
2 1
1 1
2 2
2 2
2 2
2 2
1 1
2 2
2 1
2 1
2 1
2 2
1 1
1 1
2 1
1 1
1 2
1 2
1 2
1 1
1 2
2 1
1 2
2 2
1 2
2 1
1 2
1 2
2 1
1 2
2 1
1 2
1 2
2 1
1 1
1 1
2 1
2 2
2 1
1 2
2 2
1 1
2 1
1 2
2 1
1 1
2 1
2 2
1 2
2 2
1 1
2 2
2 2
2 1
2 1
1 2
2 1
2 1
1 1
1 1
2 2
1 2
2 1
2 2
2 1
2 2
1 1
2 2
1 2
1 1
2 2
1 1
1 2
1 1
1 1
1 1
2 2
1 2
1 1
2 1
2 1
2 2
2 2
2 2
1 1
1 2
1 1
2 2
2 2
1 2
2 1
2 1
1 2
2 2
1 2
2 1
1 1
1 1
2 2
2 2
1 2
2 1
2 2
2 1
1 2
1 1
2 1
1 1
2 1
1 1
1 1
2 1
2 2
1 1
1 1
1 1
2 2
2 1
1 1
1 1
2 2
2 1
2 1
1 2
2 2
2 1
1 1
2 1
1 2
1 2
1 1
1 2
2 2
1 1
2 1
1 2
2 2
1 2
2 1
1 2
1 1
2 2
1 1
1 2
1 1
1 2
1 1
1 1
1 1
2 1
2 2
1 2
2 2
2 2
1 2
1 2
1 1
2 1
1 1
2 2
1 2
1 2
2 2
2 1
1 2
2 2
1 2
1 2
2 2
2 2
2 1
2 1
1 1
1 1
1 2
2 2
1 1
2 2
2 1
1 1
2 1
2 2
1 1
2 1
1 2
1 2
1 2
2 2
2 1
2 1
1 2
1 1
2 1
2 2
2 1
2 1
2 1
1 2
1 1
1 1
1 1
2 1
2 1
1 2
2 2
1 1
2 2
1 2
2 1
2 1
2 2
1 2
1 1
1 1
1 1
2 1
1 1
2 1
1 2
1 1
1 1
1 2
2 1
2 1
2 2
1 1
2 1
2 1
1 1
1 1
2 1
2 1
2 2
2 2
2 1
1 2
2 1
2 2
2 1
2 1
1 2
2 2
2 2
1 1
1 2
2 1
2 1
1 1
1 1
1 1
2 1
1 2
1 2
2 1
2 2
2 1
1 2
1 2
2 1
1 1
1 1
2 1
2 2
2 2
2 2
2 2
1 2
2 1
2 1
1 1
1 1
2 2
2 2
1 1
1 2
1 2
2 1
1 2
2 2
2 1
2 2
2 1
1 1
1 1
2 2
1 2
2 1
2 1
2 1
1 2
2 2
2 2
1 2
2 1
1 2
1 1
1 1
2 2
2 2
1 2
2 2
1 2
2 1
2 2
1 1
2 1
2 2
1 2
2 1
2 1
1 1
2 1
1 1
2 1
1 1
2 2
2 2
1 2
1 2
2 1
2 1
2 2
1 2
2 2
1 2
1 1
1 1
1 1
2 1
2 2
2 1
2 2
1 2
2 2
1 2
1 1
1 1
2 1
1 2
2 2
1 1
1 2
1 2
2 2
2 2
1 1
2 2
1 1
2 1
2 1
2 1
2 2
1 2
2 1
2 1
1 1
2 2
1 1
2 1
1 2
1 2
2 2
2 1
1 1
2 2
1 2
1 1
1 1
2 1
1 1
1 2
1 1
2 2
1 1
1 2
1 1
2 1
2 1
1 2
2 1
2 2
1 1
2 2
1 2
1 2
2 1
2 2
1 1
1 2
2 1
2 2
2 1
1 2
1 2
1 2
2 2
1 1
2 1
1 1
1 2
2 2
2 2
2 2
2 2
1 1
2 1
2 2
1 1
1 1
2 1
2 1
1 1
2 2
1 1
1 2
1 2
2 1
1 1
1 1
1 1
2 1
1 2
2 2
2 1
2 2
1 1
2 2
2 2
2 2
2 1
1 2
2 2
2 1
1 2
2 1
1 2
2 1
1 2
1 1
1 1
1 2
1 2
1 2
2 2
2 1
2 2
1 2
2 1
2 2
1 1
1 2
2 2
1 1
1 1
1 2
2 1
1 1
1 2
1 2
1 1
1 1
2 1
2 2
2 2
1 1
1 1
2 2
1 2
2 1
2 1
1 2
2 1
1 2
1 2
1 2
1 2
2 1
2 2
2 2
1 2
1 1
1 2
2 1
1 1
2 2
2 2
1 2
1 2
1 1
1 1
1 2
1 2
2 2
1 1
2 2
1 2
2 2
2 1
2 2
2 1
1 2
1 1
2 2
1 1
1 2
2 2
1 2
2 1
2 1
1 1
2 1
2 1
2 1
1 2
1 2
1 2
2 1
2 1
1 1
1 2
2 2
1 1
1 2
1 1
1 1
2 1
2 2
1 2
2 2
1 2
2 1
2 1
1 1
2 2
1 2
1 2
2 2
1 2
2 1
2 2
1 1
1 1
1 2
1 2
1 1
2 2
1 2
1 2
2 2
2 2
1 1
2 1
2 1
1 1
1 2
1 1
1 1
1 1
2 2
2 1
1 2
1 2
2 2
2 1
2 1
1 2
1 1
1 1
2 2
2 1
2 1
1 1
1 1
1 1
2 1
2 2
1 2
1 1
1 2
1 1
2 1
1 2
1 1
1 1
1 2
1 1
1 2
1 1
1 2
1 1
2 2
2 2
1 2
1 1
2 2
2 1
1 1
2 1
2 1
1 2
2 1
1 1
1 1
1 2
2 1
1 1
1 1
1 2
2 1
1 1
2 2
1 1
1 1
1 1
2 2
1 2
2 2
2 2
1 2
2 1
2 1
2 1
2 1
1 1
2 2
1 1
1 1
1 1
2 1
2 1
2 2
1 2
1 2
1 1
1 2
2 1
2 2
2 1
1 1
1 2
1 2
1 2
2 2
1 1
2 1
1 2
2 1
2 1
2 2
2 1
2 2
2 2
2 2
1 2
2 1
1 2
2 2
1 1
2 1
1 1
1 2
1 2
2 1
2 1
1 2
1 2
1 1
1 1
2 2
2 1
2 1
1 1
2 1
2 1
2 1
1 1
2 2
1 2
1 1
1 1
1 1
1 1
1 2
1 2
1 2
1 1
2 1
1 1
2 2
1 2
2 2
2 2
1 2
2 2
2 2
2 2
1 2
1 2
1 1
1 2
1 1
2 1
2 1
2 1
1 1
1 1
2 2
2 1
2 1
1 1
2 1
1 2
2 2
2 1
1 2
2 2
2 2
1 2
1 1
2 1
1 2
2 1
1 2
2 2
2 1
2 2
2 2
1 2
2 2
1 1
2 2
1 2
2 2
2 1
2 1
1 2
2 2
2 1
2 2
1 1
1 2
2 1
1 2
1 1
1 2
1 1
1 2
2 1
1 2
2 1
1 2
1 1
2 1
2 2
2 2
1 1
1 1
2 2
2 2
2 1
2 2
2 2
2 2
1 2
2 1
1 2
2 2
2 2
1 1
2 2
2 1
2 1
2 1
2 2
1 1
1 2
1 1
1 1
2 2
2 2
1 2
1 1
1 1
1 1
2 1
2 1
2 2
1 1
1 1
2 2
1 1
2 2
2 2
1 2
1 1
2 1
2 1
2 1
2 1
1 2
1 1
1 1
1 2
1 1
1 2
1 2
2 2
1 1
2 2
1 2
2 2
2 1
1 2
1 1
1 2
1 1
2 2
1 1
2 1
1 1
2 1
1 2
2 1
1 2
2 1
1 1
2 2
1 2
1 1
2 2
2 2
1 1
1 1
1 2
2 2
1 2
2 1
2 1
1 2
1 2
1 2
2 1
2 2
2 2
1 1
1 1
2 2
2 2
2 2
1 1
2 1
2 2
1 1
1 2
2 1
1 2
1 1
2 2
1 2
1 2
2 2
1 2
1 1
1 1
1 1
1 1
2 2
2 2
1 1
1 1
2 2
1 1
2 1
2 1
1 1
1 2
2 1
1 2
1 1
2 1
1 1
1 1
2 1
1 2
2 2
1 2
2 2
2 1
1 2
1 2
1 2
1 1
1 1
2 1
1 2
1 1
2 1
2 1
2 1
1 1
1 2
2 1
2 2
2 1
2 1
1 2
2 2
2 2
2 2
1 1
1 1
1 1
2 1
2 1
1 2
1 1
2 1
2 2
2 2
1 2
2 2
2 1
1 2
2 1
2 1
2 1
2 1
2 1
2 2
2 1
1 2
2 1
2 2
2 2
2 1
2 2
1 2
2 1
1 2
2 2
1 1
1 2
1 1
1 2
1 1
2 2
1 2
2 2
1 2
1 1
1 2
2 1
1 2
2 2
1 2
2 2
1 2
2 2
2 2
2 2
2 1
1 2
1 2
1 2
1 2
2 2
1 2
2 2
2 1
2 2
1 1
2 1
1 2
1 1
1 1
2 2
2 2
1 1
1 1
2 1
1 1
1 2
2 1
2 1
2 2
2 1
1 2
2 2
1 1
2 1
2 2
2 1
1 1
1 1
1 2
2 2
1 1
2 2
2 1
1 2
1 1
1 2
1 1
2 2
2 1
1 2
2 2
1 2
2 1
1 1
1 1
2 2
1 1
1 2
2 1
1 1
1 1
1 2
1 2
2 1
2 1
2 1
2 1
2 1
1 2
1 1
1 2
1 1
2 1
2 1
1 1
1 1
2 2
2 1
1 2
1 2
1 2
1 1
1 1
2 2
1 1
2 2
1 1
2 2
1 2
1 1
1 2
1 2
2 1
1 1
1 2
2 1
1 1
2 2
1 1
1 1
1 1
2 1
1 2
1 1
1 1
2 2
2 1
2 1
1 2
1 1
2 1
2 1
2 1
2 1
1 2
1 1
2 2
2 2
1 2
1 2
2 1
2 1
1 2
1 2
1 1
2 2
1 1
2 2
1 1
1 1
2 2
2 1
1 1
1 2
1 2
2 2
2 1
1 1
2 2
2 1
2 2
2 1
2 1
2 2
1 2
1 1
2 1
2 2
2 1
1 2
1 1
2 1
2 1
1 1
1 1
1 2
1 1
2 1
1 1
2 1
2 1
2 2
1 2
2 1
1 2
1 2
1 2
1 1
1 2
1 2
2 2
1 2
2 2
1 2
1 1
2 1
2 1
1 1
1 1
1 1
2 1
2 1
2 1
1 1
2 1
1 2
1 2
1 2
2 1
2 1
2 1
2 2
2 2
1 1
2 1
2 1
1 2
2 1
1 1
1 2
1 2
2 2
2 1
2 2
1 2
1 1
2 1
1 1
2 2
2 1
1 1
1 2
1 1
1 1
2 2
1 2
2 2
1 1
2 2
1 1
1 1
1 1
2 2
2 2
2 2
1 2
1 2
2 1
2 1
2 1
2 2
2 1
1 1
2 1
2 2
2 1
2 2
1 2
2 1
2 2
1 1
1 2
2 1
2 2
1 2
2 2
2 1
1 2
2 1
1 2
2 1
1 2
2 2
1 2
1 1
2 1
1 1
2 2
2 2
1 2
1 1
2 1
1 1
1 1
2 1
2 1
1 2
2 2
1 2
2 2
1 2
2 2
2 1
1 2
2 1
1 2
1 2
2 1
2 1
1 1
2 2
2 1
2 2
2 2
2 2
2 1
1 1
1 1
1 2
2 1
1 2
2 2
2 1
2 1
1 1
1 2
1 2
2 1
1 2
1 2
2 1
2 1
2 2
2 2
1 2
2 1
1 1
2 1
2 1
1 1
2 2
2 1
2 2
2 2
2 1
1 2
2 2
2 2
1 2
1 1
1 1
2 1
2 1
2 1
1 1
2 2
2 1
2 2
1 2
1 1
2 2
1 1
2 1
2 2
2 2
2 1
2 1
1 1
1 1
1 2
2 1
1 2
1 2
2 2
2 2
1 2
2 2
1 1
2 2
1 1
2 1
1 2
2 1
1 2
2 1
2 1
2 1
1 2
2 1
2 2
1 2
1 2
1 2
1 2
1 1
2 1
1 1
2 1
2 1
2 2
1 2
1 2
1 2
2 1
1 1
2 2
2 2
1 1
2 1
1 1
1 1
1 1
1 1
1 1
2 2
1 1
1 1
2 1
1 1
1 1
1 1
2 2
1 2
2 1
2 1
1 2
2 2
1 1
1 1
2 1
1 1
2 2
1 2
1 1
1 2
1 1
2 2
2 2
2 2
1 2
2 2
1 1
1 2
2 2
2 2
1 1
1 2
1 1
1 2
2 1
1 1
1 2
1 1
2 1
1 1
1 1
1 1
2 1
1 2
2 1
2 2
2 1
2 2
2 2
1 1
1 2
1 2
2 2
2 1
2 1
1 2
2 2
1 2
2 1
2 1
1 2
2 2
1 1
1 2
1 2
1 2
2 1
2 1
1 2
2 2
1 2
2 2
2 2
2 2
1 1
1 2
2 2
2 2
2 2
1 1
1 2
1 1
1 2
1 1
1 2
1 2
2 1
2 1
2 1
2 1
2 1
2 2
1 1
2 2
1 2
2 1
1 1
2 1
1 2
1 1
2 1
1 1
2 2
1 1
1 1
1 2
2 2
1 1
2 2
2 1
2 1
1 2
2 2
2 1
2 1
1 2
2 1
2 1
1 1
1 2
2 2
2 1
2 2
2 1
2 1
2 1
2 1
1 2
2 2
1 1
1 2
1 1
2 1
2 2
1 1
1 1
1 1
2 1
1 1
1 2
2 2
1 2
1 1
2 2
1 2
2 1
1 2
2 1
2 2
1 1
1 2
1 2
1 2
1 1
2 2
2 1
1 2
2 1
2 2
2 1
1 1
1 1
2 1
1 1
2 2
1 2
2 2
1 1
2 2
2 1
2 2
1 2
2 1
1 2
1 1
1 2
2 2
2 1
1 2
1 1
1 2
2 1
2 1
2 2
2 1
2 2
1 1
2 2
2 2
2 2
1 1
2 2
2 1
1 1
2 1
2 1
1 1
2 1
2 1
2 1
2 2
1 2
1 2
1 1
2 2
2 2
2 1
1 1
2 1
1 1
2 1
1 1
1 1
1 2
1 2
1 2
2 2
2 1
2 2
1 1
2 2
2 2
2 1
1 1
2 2
2 2
1 1
2 1
1 1
2 1
1 1
2 2
1 1
1 2
1 2
1 1
2 2
1 2
1 1
2 2
1 1
1 2
1 1
1 1
1 2
2 2
1 1
1 2
1 2
1 1
1 2
2 2
2 1
1 2
2 1
1 2
1 2
1 1
1 1
1 1
1 2
1 2
1 1
1 1
1 2
2 1
2 2
1 2
2 1
2 2
1 2
2 1
1 1
1 2
2 2
1 2
1 1
1 1
1 2
2 1
1 1
2 2
1 1
2 2
1 2
1 2
1 1
1 1
1 2
1 1
2 2
1 1
1 1
2 2
1 2
1 1
1 2
1 2
1 1
1 2
1 2
1 2
2 2
2 2
2 1
1 2
2 2
1 1
1 2
1 2
1 2
1 1
2 1
2 2
1 2
2 2
1 2
2 1
1 1
1 2
2 1
2 1
2 2
1 1
2 2
2 2
1 1
1 1
1 2
1 2
2 2
1 2
1 1
2 2
2 2
1 1
1 2
2 1
2 1
1 1
1 1
2 1
1 2
1 1
1 2
1 2
1 1
1 1
1 2
1 2
2 2
2 2
1 1
2 1
2 1
1 1
2 1
2 2
1 1
1 1
1 1
2 1
2 1
1 1
2 2
1 2
2 2
1 1
1 2
2 2
2 1
1 1
2 1
2 1
1 1
1 2
1 2
2 2
1 2
2 2
1 1
1 2
1 2
2 1
2 1
1 2
2 2
1 2
1 2
1 2
1 1
2 1
2 2
2 2
2 1
2 2
1 2
2 2
2 2
2 1
2 1
1 1
1 2
2 2
2 1
1 2
2 1
2 2
1 1
1 1
1 1
1 2
1 2
1 2
1 2
1 2
2 2
1 2
1 1
1 1
2 2
2 1
2 1
1 2
1 1
2 1
1 1
1 1
2 1
2 1
2 1
2 1
2 2
2 1
1 2
2 1
2 2
2 1
2 2
2 1
2 2
2 1
1 1
1 1
1 2
2 2
2 1
1 1
1 2
2 1
1 2
1 2
1 2
2 2
1 2
1 2
1 1
1 2
2 1
2 1
1 1
2 2
1 1
1 1
2 1
1 1
1 2
1 1
1 1
1 1
2 1
2 1
2 1
1 1
1 2
2 2
2 2
2 1
2 1
2 1
1 2
2 2
2 1
1 1
2 1
1 1
1 1
1 2
1 1
2 2
2 2
2 2
1 1
2 1
1 2
1 2
2 2
1 1
1 1
2 1
1 2
2 2
2 2
2 2
2 2
1 1
2 1
2 1
2 2
2 2
1 1
1 1
2 1
2 1
2 1
1 1
2 1
2 2
1 1
2 2
2 1
2 2
1 1
1 2
2 2
2 2
1 1
2 1
2 1
2 2
1 1
2 1
1 1
2 2
2 1
1 2
1 1
1 2
2 2
2 2
2 1
1 2
1 2
2 2
2 2
1 1
2 1
2 1
1 2
2 2
1 2
1 2
2 1
1 1
1 1
2 1
2 2
2 1
2 1
1 2
2 2
1 1
1 2
1 1
1 2
1 2
2 2
2 1
1 2
1 1
1 1
1 1
2 2
1 1
1 1
2 2
1 2
1 1
2 1
2 2
2 1
1 2
2 2
1 2
2 2
2 2
1 2
2 1
2 2
1 2
2 2
2 2
1 1
1 1
2 2
2 1
1 1
2 2
1 1
1 1
1 1
1 1
1 2
2 2
1 1
2 1
1 1
1 2
2 2
2 2
2 2
2 1
2 1
2 2
2 2
2 1
1 1
2 1
1 1
1 2
2 2
2 1
1 2
2 2
1 1
2 2
2 2
2 1
2 1
1 1
1 1
2 1
2 1
2 1
2 2
1 2
2 2
2 1
1 2
2 2
2 2
2 1
2 1
1 1
1 2
2 2
2 1
1 1
1 2
1 2
1 2
1 2
1 1
2 1
2 1
1 1
2 2
2 2
2 2
1 1
1 1
2 1
2 2
1 2
2 1
2 2
1 1
1 2
1 2
1 2
1 1
1 2
1 2
2 2
2 2
1 1
2 2
2 1
1 1
1 1
1 1
1 2
1 2
2 1
1 1
2 2
2 1
1 1
2 2
2 2
1 2
2 2
1 1
2 2
2 2
2 1
1 2
2 1
2 1
2 1
2 1
1 1
1 2
2 1
1 2
2 2
2 1
1 1
1 2
2 1
1 1
1 1
2 1
2 2
2 1
2 2
1 1
2 1
1 1
2 1
2 1
1 2
2 2
2 2
2 2
1 2
2 1
1 2
1 2
1 2
1 2
1 1
1 2
1 1
1 2
2 2
2 1
1 2
2 2
1 1
2 1
1 1
1 2
2 1
2 1
2 2
2 2
1 2
2 1
1 1
1 1
1 2
1 1
1 1
1 2
2 1
2 1
1 2
1 1
1 2
1 1
1 2
2 2
1 1
1 1
2 1
1 1
1 1
1 1
2 2
1 2
1 2
2 1
1 2
2 1
1 2
1 1
1 1
2 1
2 1
2 1
1 2
2 1
1 1
1 2
1 1
1 1
2 1
2 2
1 2
1 1
2 2
2 2
1 2
2 1
2 2
2 1
1 1
1 1
2 2
1 2
2 1
1 1
2 2
1 2
1 2
2 1
1 2
2 1
1 2
1 2
2 1
2 2
2 1
1 2
2 2
2 1
1 2
1 1
1 1
2 2
2 2
2 1
1 2
2 2
2 2
2 1
2 2
1 1
2 1
2 2
1 1
2 1
2 1
1 1
2 2
2 2
2 1
2 1
2 2
2 1
1 2
1 2
2 1
1 2
2 2
1 1
2 1
2 2
2 1
2 1
2 1
1 1
2 1
2 1
2 2
2 2
1 1
1 2
1 1
1 1
2 2
1 2
1 2
2 1
2 1
1 2
1 2
1 2
2 1
2 2
1 1
2 2
2 2
1 1
2 2
2 1
1 1
2 1
2 2
2 1
1 2
1 1
1 2
1 2
1 1
1 1
1 2
2 1
1 1
2 2
1 2
1 2
2 1
2 1
2 1
2 1
2 1
2 2
2 1
2 1
2 1
2 1
1 2
2 1
1 2
2 1
1 2
1 2
2 1
1 2
2 1
1 1
2 1
2 2
2 2
1 2
1 2
1 2
2 2
2 2
1 2
2 1
2 2
1 2
2 1
1 2
2 1
1 1
1 1
2 1
1 2
2 1
2 2
1 1
1 2
2 1
1 1
2 2
2 1
2 1
2 2
1 1
1 1
1 1
2 2
1 2
2 1
1 2
2 1
1 1
2 2
1 2
1 1
2 1
1 1
2 2
1 2
2 2
1 1
1 2
2 1
1 1
2 2
1 2
2 2
2 1
2 1
2 2
1 2
2 1
1 2
1 2
1 2
1 2
2 1
1 1
1 2
1 1
1 2
1 1
2 2
2 2
1 2
2 2
2 2
2 2
1 2
1 2
2 1
2 1
2 2
1 1
1 1
2 2
2 2
2 1
1 2
2 1
2 1
2 1
2 2
1 2
1 1
1 1
1 2
1 2
1 1
1 2
2 2
2 1
2 1
2 1
1 2
2 2
1 1
2 2
1 2
2 1
1 2
1 2
2 1
2 2
1 1
1 1
2 2
2 2
2 1
2 1
1 2
1 1
1 1
1 2
1 2
2 1
1 1
1 1
2 1
1 1
1 2
2 2
2 1
2 2
1 1
2 2
1 2
1 2
2 2
2 2
1 2
1 1
2 1
1 2
1 2
2 2
2 1
2 2
2 1
2 2
2 2
1 1
1 2
2 2
2 2
1 2
2 2
2 2
1 1
1 2
1 1
1 1
2 2
1 1
1 2
2 2
2 1
2 1
1 2
2 2
1 1
1 2
1 1
2 1
1 1
2 2
1 2
1 2
2 1
1 2
2 1
2 2
2 1
2 1
1 1
2 1
1 1
1 2
1 2
1 2
2 1
1 2
1 2
2 2
1 1
2 1
2 2
1 2
2 2
2 2
2 1
2 2
2 2
2 2
2 2
2 1
1 1
2 1
1 1
2 1
1 2
1 2
2 1
2 1
1 2
1 2
2 2
2 2
1 2
2 1
2 1
1 1
2 2
2 2
1 2
1 1
2 1
1 1
1 2
1 2
1 2
1 2
1 1
1 2
1 2
1 1
2 1
1 1
2 2
2 2
1 2
2 1
2 1
2 2
2 2
2 1
2 1
1 1
1 1
1 1
2 1
2 1
2 2
2 1
2 1
2 1
2 1
1 2
1 2
1 1
2 1
1 2
2 1
2 2
2 2
1 1
1 1
2 1
2 1
2 1
2 1
1 1
1 1
2 2
2 1
1 2
2 2
1 2
2 1
1 2
1 2
1 1
1 1
2 2
2 2
2 2
2 2
1 1
2 1
2 1
2 1
1 2
2 2
2 2
2 1
1 1
2 2
1 1
2 1
1 1
2 1
2 2
1 1
1 2
1 1
1 1
2 2
2 1
2 2
2 2
2 2
2 2
2 2
2 2
2 2
1 1
2 1
2 2
2 2
2 1
2 2
2 1
2 1
1 2
2 1
1 1
1 1
1 2
1 1
2 1
1 2
2 2
2 2
1 1
1 1
2 1
2 2
2 1
1 2
2 2
2 1
1 2
2 2
2 2
1 1
2 2
2 1
2 1
1 2
2 2
2 1
1 2
1 2
1 2
1 2
2 1
2 2
1 1
2 1
2 2
2 2
2 2
2 2
1 1
2 2
1 1
2 2
2 1
2 2
1 1
1 2
1 2
1 1
2 1
2 2
2 2
2 1
2 1
2 2
2 2
2 1
2 2
2 1
2 2
1 2
2 2
2 1
2 2
1 1
1 1
1 1
1 2
1 1
2 2
1 1
2 1
1 1
1 1
2 2
1 1
2 1
2 1
2 1
2 2
2 2
2 2
2 1
2 2
2 1
2 1
2 1
1 2
1 1
2 1
1 1
1 1
2 1
1 2
2 1
2 2
1 1
2 2
2 1
1 1
2 2
2 2
1 1
2 1
2 2
1 2
1 1
2 2
2 1
1 2
1 2
2 2
1 2
2 2
2 1
1 1
1 2
2 2
2 1
2 1
2 2
2 2
2 2
1 2
2 1
2 2
1 1
2 2
2 2
2 1
2 2
2 1
2 1
1 1
2 1
1 1
1 1
2 2
2 2
1 2
2 1
1 2
1 2
1 2
2 1
1 2
2 1
2 2
2 2
1 1
2 1
1 1
1 1
1 2
2 1
2 2
1 2
1 1
1 2
2 1
2 2
2 2
2 1
2 1
2 2
1 1
2 2
1 1
1 2
2 2
1 2
2 2
2 2
2 1
2 2
1 1
2 1
2 2
2 2
1 1
2 1
2 2
1 1
1 2
1 1
2 1
1 2
2 2
1 1
1 2
2 1
2 2
1 2
1 1
2 2
2 1
2 1
2 1
2 2
1 1
2 2
1 2
1 2
2 2
2 1
2 2
2 2
2 2
2 2
2 2
1 1
1 1
2 2
1 2
2 1
1 1
2 2
2 2
1 1
2 2
1 2
1 2
2 1
2 1
2 1
1 1
2 1
1 1
1 1
2 1
1 2
1 2
2 1
1 2
2 1
2 2
1 1
2 2
1 2
1 2
1 1
1 1
1 2
1 1
1 2
1 1
2 2
2 2
2 2
1 2
1 2
1 1
1 2
1 2
1 2
1 1
2 2
2 2
1 1
1 2
2 2
2 2
1 2
2 1
2 1
2 1
1 1
1 1
1 1
2 2
1 1
1 2
1 2
2 1
1 2
1 1
1 1
1 1
2 1
1 1
1 1
1 2
1 2
1 2
2 2
1 1
1 2
1 1
2 1
1 2
2 2
1 1
1 1
2 2
2 2
1 2
2 2
1 2
2 1
1 1
2 2
1 2
2 1
1 2
1 1
2 2
2 1
2 2
2 1
2 2
2 2
1 2
1 2
2 1
2 1
2 2
2 1
1 2
1 2
2 2
1 2
1 2
1 1
1 2
1 1
1 2
1 2
1 2
1 2
1 2
1 1
2 2
1 2
1 2
2 2
2 1
1 2
1 2
1 2
2 2
1 1
2 1
2 2
2 1
1 2
1 1
2 2
1 1
1 1
2 2
2 2
2 2
1 2
1 1
1 2
2 2
2 1
1 2
2 2
1 2
1 2
2 1
2 1
1 1
1 2
1 1
1 2
1 1
1 2
2 1
1 1
1 1
2 2
2 2
1 1
2 2
2 1
2 1
1 2
2 2
2 2
1 1
2 2
2 2
2 2
1 1
2 1
1 2
1 1
2 2
2 2
2 2
2 1
2 2
1 2
1 1
1 2
1 1
2 2
2 1
2 1
2 1
1 2
1 2
1 1
1 2
1 2
1 2
2 2
1 1
1 1
1 1
1 1
1 1
2 2
1 2
1 1
1 1
2 1
1 2
2 2
2 2
2 1
2 2
1 1
1 1
2 1
1 1
1 1
2 1
1 1
1 2
1 2
2 1
1 1
1 2
2 2
2 2
1 1
2 2
2 1
1 2
2 1
2 2
2 1
2 2
1 1
2 1
1 1
2 1
1 2
1 2
2 2
2 1
1 1
2 2
1 2
1 1
1 2
1 2
2 1
1 1
2 1
1 1
1 2
2 1
2 1
2 2
2 2
2 1
2 1
1 2
2 2
1 1
2 1
1 2
2 2
1 2
1 2
1 2
2 2
1 2
1 2
2 2
2 1
2 2
2 2
2 2
2 1
2 1
1 2
1 2
1 1
1 1
2 2
2 1
2 1
1 2
1 1
1 2
2 1
2 1
1 2
1 2
1 2
1 2
2 2
2 1
1 1
1 1
2 1
1 2
1 2
2 2
2 2
1 1
2 2
2 2
2 1
1 1
2 1
2 1
2 2
1 1
1 2
2 1
1 2
2 2
2 1
1 1
1 1
2 2
1 1
1 2
1 2
1 1
1 2
1 1
1 2
2 2
2 2
2 2
2 1
1 2
1 2
1 2
2 2
2 1
1 1
2 2
2 1
2 2
2 2
1 1
1 1
1 1
2 1
2 2
2 2
2 1
2 1
2 2
1 1
2 2
2 1
2 2
2 1
2 2
2 2
2 2
2 1
2 2
2 1
2 2
1 1
1 2
2 2
2 1
2 2
1 1
1 1
2 2
1 2
2 1
2 1
2 1
2 1
2 1
1 2
2 2
1 1
2 1
1 1
2 2
1 2
1 1
2 2
1 1
2 2
2 2
2 2
2 2
1 1
1 1
1 1
1 1
2 1
1 1
2 2
1 2
1 2
2 1
2 1
1 1
1 1
2 2
2 1
1 1
2 1
1 2
2 1
2 1
2 1
1 2
1 2
1 2
1 2
1 2
1 2
2 1
1 1
1 2
1 1
2 2
1 2
1 1
2 2
2 2
2 2
2 2
1 2
2 1
1 2
2 2
1 1
1 2
1 2
1 2
1 2
2 1
2 2
2 1
1 1
2 1
1 1
1 1
1 2
1 2
2 2
1 1
1 1
1 1
2 2
2 1
2 2
1 1
2 1
2 2
2 1
1 1
1 1
1 2
1 1
1 2
2 1
1 1
1 2
2 2
1 2
2 2
1 1
2 2
2 1
2 2
2 1
1 1
1 2
1 1
2 2
1 1
1 1
2 1
2 2
2 2
1 2
1 1
2 2
1 2
2 2
1 1
1 1
2 2
1 1
1 1
2 2
1 1
2 2
2 1
1 2
1 1
1 1
2 2
2 2
1 1
2 1
2 1
2 2
2 2
2 1
2 1
1 2
2 2
2 1
1 2
1 2
1 1
1 2
2 1
2 2
1 1
2 2
1 1
2 2
1 1
1 2
2 1
2 1
1 2
1 1
2 1
2 1
2 1
1 1
1 2
1 2
1 1
2 1
2 1
1 1
1 1
2 1
2 1
1 2
1 2
1 1
2 1
2 1
1 2
1 1
1 2
2 2
1 2
1 1
2 1
2 2
2 2
1 1
1 1
2 1
1 1
1 1
1 2
1 1
1 2
1 2
2 1
1 1
1 1
1 1
1 1
2 1
1 2
2 2
2 2
2 1
2 1
2 2
1 1
2 1
1 1
2 2
1 2
2 2
2 1
1 1
1 1
2 2
2 1
2 2
2 1
2 2
2 1
1 2
2 2
1 1
1 2
2 2
2 2
1 2
2 1
1 1
1 2
1 2
2 2
1 2
2 2
2 2
2 2
1 1
1 1
1 2
2 1
1 1
1 1
2 1
1 2
2 2
2 2
2 1
2 2
1 2
2 2
2 2
2 2
2 1
2 2
2 1
1 2
1 1
2 1
1 1
2 2
2 2
2 1
2 1
2 2
1 1
2 2
2 2
1 1
2 1
2 1
2 1
1 1
2 2
1 1
2 1
2 1
2 2
2 2
2 2
1 1
2 2
2 1
1 2
1 1
1 1
2 2
1 2
1 2
1 1
1 1
2 2
1 2
1 1
2 2
1 1
1 2
1 1
1 1
1 1
1 2
2 2
2 1
1 2
2 1
1 2
2 1
2 1
1 1
1 2
2 2
1 1
2 1
2 1
1 1
1 2
2 2
2 2
1 1
2 1
2 2
1 1
1 2
1 2
1 2
1 1
1 2
1 1
1 2
2 1
1 1
2 1
2 1
2 2
2 2
1 2
1 2
1 2
2 2
2 1
2 2
2 1
2 1
2 1
2 2
2 1
2 1
1 1
1 2
1 1
2 2
1 1
2 2
1 2
1 1
1 1
2 1
2 2
1 2
2 1
2 2
2 1
1 1
1 2
1 2
2 1
2 1
1 1
1 1
2 2
1 1
2 2
2 2
1 1
1 2
1 2
1 1
1 2
1 1
1 2
1 2
2 1
2 2
1 1
2 2
1 2
2 2
2 1
2 2
2 2
1 1
2 1
1 2
2 1
1 2
2 1
2 2
2 2
2 2
2 2
1 1
2 2
2 1
1 1
1 1
1 2
2 2
1 1
2 1
2 2
1 1
2 1
2 2
1 1
2 2
2 2
2 1
1 1
1 1
1 2
1 1
1 1
2 1
1 2
2 2
1 1
1 1
2 2
1 2
1 2
2 1
2 2
2 2
1 2
1 1
2 2
2 2
2 2
1 1
1 2
1 2
2 1
1 1
1 1
1 2
2 2
1 2
2 2
2 2
2 1
2 1
1 1
1 1
1 1
1 1
1 1
2 2
2 1
2 1
2 1
2 1
1 2
1 1
2 1
1 2
1 2
1 2
1 1
1 1
1 1
2 2
1 1
2 1
2 2
2 2
1 1
1 2
2 2
2 1
2 1
2 1
1 1
2 1
2 1
1 2
1 2
1 1
2 2
2 1
1 1
2 2
1 2
2 1
1 1
2 2
2 2
2 1
1 1
2 2
2 2
2 2
2 1
2 2
2 2
1 1
2 1
1 1
1 2
1 1
1 2
2 2
2 1
1 2
2 2
1 1
2 1
2 2
1 1
1 1
2 1
1 1
1 1
1 1
2 2
1 2
2 1
2 1
1 1
2 2
2 2
1 1
2 1
1 2
1 1
2 2
1 1
2 2
2 1
2 2
1 2
1 2
2 1
2 2
2 2
2 1
1 2
2 2
2 2
2 1
2 2
1 1
2 2
2 1
2 1
2 2
2 1
1 2
1 1
1 1
2 1
1 2
1 1
2 1
1 1
2 2
2 1
1 2
1 2
2 2
2 1
1 1
1 2
1 2
1 1
1 1
1 1
1 2
2 1
2 2
2 1
1 1
2 1
2 1
1 2
1 1
1 1
1 1
1 2
2 1
1 1
2 1
2 1
1 2
1 2
2 2
1 2
1 1
2 2
1 2
1 2
1 2
1 2
2 2
1 2
1 1
1 1
2 1
1 1
2 1
1 1
1 1
1 1
2 1
2 2
2 2
2 1
2 1
2 2
2 1
1 1
1 2
1 2
1 1
1 2
1 2
1 1
1 2
1 1
1 2
2 2
2 2
2 2
1 2
2 2
2 1
2 1
2 1
2 1
2 2
1 2
1 2
1 2
1 2
2 1
1 2
2 1
1 1
1 2
1 1
1 2
2 2
2 1
2 1
1 1
1 2
2 2
2 1
1 2
1 1
1 2
2 1
2 2
2 1
1 1
2 1
1 2
2 2
1 2
2 1
2 1
2 1
1 1
1 1
2 2
2 1
1 1
2 2
2 1
1 1
1 2
1 2
1 1
1 2
1 2
2 2
1 2
2 2
2 2
1 2
1 2
2 1
2 1
2 1
1 1
2 1
2 2
2 2
2 1
2 1
2 1
1 1
2 1
2 2
2 1
1 2
1 1
2 2
1 1
1 1
1 2
2 1
1 2
1 2
1 2
1 1
1 1
2 1
1 2
1 2
2 2
1 2
2 2
2 2
1 1
2 2
1 2
2 1
1 2
2 1
2 2
2 2
1 1
1 2
2 1
2 1
1 1
2 2
1 2
1 2
2 1
1 1
2 2
2 1
2 1
2 2
1 1
1 2
2 1
2 2
2 2
1 2
1 2
2 2
1 2
1 1
2 1
1 2
2 1
2 1
2 2
1 1
1 1
1 2
2 2
2 2
2 1
1 2
2 1
2 2
1 1
2 1
1 2
2 1
1 2
2 1
2 1
2 2
2 2
2 2
1 2
1 1
1 1
2 1
1 1
1 1
2 1
2 2
2 2
1 2
1 1
1 1
1 1
2 2
1 2
1 2
2 1
2 1
2 2
1 2
1 1
2 2
2 2
2 2
2 2
1 1
1 1
1 2
2 2
1 2
2 2
2 1
2 1
1 2
1 1
2 2
1 2
1 2
2 2
1 2
1 1
1 1
1 2
1 2
2 1
2 1
2 2
1 2
1 2
2 1
2 2
1 2
2 1
1 1
2 1
2 2
2 1
2 1
1 2
2 2
2 1
1 1
1 1
2 2
1 2
2 1
2 1
1 2
2 2
1 2
1 1
1 1
1 2
2 2
2 2
1 1
2 2
2 1
1 2
1 2
2 1
2 2
1 2
1 1
2 1
1 1
2 1
1 1
1 1
1 2
2 2
1 2
2 2
1 1
1 2
1 2
1 1
2 1
2 1
1 2
2 1
2 2
2 1
1 1
1 2
2 2
2 1
2 1
1 1
2 2
1 2
2 2
2 2
1 1
1 1
1 1
1 2
2 1
1 2
2 1
1 1
2 2
2 1
2 1
2 2
1 2
1 2
1 1
2 1
1 1
2 1
2 2
2 2
1 2
2 2
1 1
2 2
2 2
1 1
1 2
1 2
2 1
1 1
2 1
1 2
1 1
1 2
2 2
2 1
1 2
2 1
1 2
2 2
2 1
1 1
1 2
1 1
2 2
2 2
2 2
2 1
1 1
2 1
1 1
1 1
2 1
1 2
1 1
2 2
1 2
1 1
2 2
2 1
2 2
2 1
1 2
1 1
1 2
2 2
2 1
1 2
1 2
2 2
1 1
1 1
1 2
2 1
1 2
1 2
1 2
1 2
1 1
1 2
2 1
1 1
2 1
2 2
1 1
1 2
2 1
1 1
2 2
1 1
1 1
2 1
1 2
1 2
1 2
2 2
2 1
2 1
2 1
2 1
2 2
2 2
1 1
2 1
2 2
2 2
1 2
1 1
2 1
2 1
1 2
1 2
2 2
1 2
1 2
2 2
1 2
1 2
2 1
1 2
2 1
2 2
2 2
1 1
2 1
1 2
2 2
1 1
2 1
2 2
1 2
1 1
1 2
1 2
1 2
2 2
2 2
1 1
1 1
1 2
1 2
1 2
2 1
1 2
2 2
2 2
2 2
2 1
2 2
2 1
2 1
2 1
1 2
1 2
2 2
2 1
1 1
2 2
1 1
1 2
2 1
1 2
2 1
2 1
2 2
1 2
1 2
1 2
2 2
1 2
1 2
2 2
1 2
2 1
2 2
2 1
1 1
2 1
2 2
1 1
1 1
2 1
2 1
1 1
2 2
1 1
1 1
2 1
2 2
1 2
1 1
1 2
1 1
2 1
2 2
2 1
2 2
1 2
1 1
1 1
2 2
2 2
1 2
2 1
1 1
1 2
1 2
2 1
1 2
1 2
1 1
2 1
2 2
1 2
2 2
2 1
2 2
1 2
2 2
1 2
2 1
2 1
1 2
2 2
2 1
1 2
2 2
2 1
2 2
2 2
2 2
2 2
1 1
1 1
1 2
1 2
1 2
2 1
1 1
1 1
1 1
2 2
2 1
1 1
2 2
2 2
1 2
2 1
2 2
2 1
2 1
2 2
2 1
1 1
2 2
2 2
2 2
1 1
1 1
2 2
1 2
1 2
1 2
2 1
1 2
1 1
2 1
2 2
1 1
2 2
2 2
2 1
2 1
1 1
1 1
2 1
2 2
2 1
2 1
1 1
2 1
2 2
2 2
2 1
1 1
1 1
2 2
1 1
1 1
2 2
2 2
2 2
2 2
2 1
2 1
2 1
1 2
2 2
2 1
2 2
2 2
1 2
2 1
1 1
2 1
1 1
2 1
2 2
2 2
2 1
1 1
1 2
2 1
1 2
1 2
1 2
1 2
2 2
2 2
2 2
1 1
2 2
1 2
1 2
2 2
2 2
2 2
1 1
2 1
1 1
2 2
1 2
2 1
1 2
1 2
1 1
1 1
2 2
1 2
1 1
2 2
1 1
1 1
2 2
1 2
1 2
1 1
2 1
2 1
1 1
2 1
2 2
1 1
2 2
1 2
2 2
1 2
2 2
2 1
2 1
2 2
2 1
1 1
2 1
1 1
1 2
2 1
1 1
1 2
2 1
2 1
2 2
1 2
2 2
1 2
2 2
2 2
1 2
2 1
1 2
1 2
2 2
1 1
2 1
2 2
2 2
2 1
2 2
1 1
2 1
2 2
1 2
2 1
2 1
2 1
2 2
1 1
2 1
2 1
2 1
2 1
1 2
1 1
1 2
2 1
2 1
1 2
2 2
2 1
1 2
2 1
2 2
2 1
1 2
1 2
2 1
2 1
1 1
1 2
2 1
1 2
1 1
1 1
1 1
1 2
2 2
1 2
2 2
1 1
1 2
1 2
1 2
1 2
1 1
2 2
1 1
1 1
1 2
2 1
1 2
1 2
2 2
2 2
1 2
2 2
2 2
2 1
1 2
1 1
2 2
1 1
1 1
1 2
1 2
1 1
1 2
2 2
1 1
1 1
1 1
2 1
1 2
1 1
1 1
1 2
2 1
1 1
1 1
2 2
1 1
1 2
2 2
2 2
2 1
2 2
1 2
2 1
2 2
1 1
2 2
1 2
1 2
1 1
2 1
1 2
2 2
2 2
2 2
2 2
1 2
2 2
2 1
1 2
1 1
1 2
2 2
1 1
1 2
2 2
2 1
2 1
1 2
1 2
2 1
2 1
1 1
1 2
2 1
1 1
2 1
1 1
1 1
2 2
1 2
1 2
2 2
2 1
2 1
2 1
2 2
1 2
2 1
2 2
2 2
2 1
2 1
2 2
2 1
1 2
1 2
2 2
2 2
1 2
2 1
2 1
2 2
1 1
2 1
1 2
2 1
1 1
1 1
2 1
1 1
2 1
2 1
1 2
2 2
1 1
1 1
2 1
2 2
1 2
1 2
1 1
1 1
1 2
2 1
2 2
2 2
2 1
1 1
2 1
2 2
2 2
1 2
2 2
2 1
2 1
1 2
2 1
1 2
1 1
1 2
1 2
2 2
1 2
1 1
1 1
1 1
1 2
1 1
1 2
2 1
1 2
1 2
2 2
2 2
1 2
1 2
1 1
1 1
1 2
1 2
2 1
2 2
2 1
2 1
1 1
2 1
2 1
2 1
2 1
2 2
1 2
1 2
1 1
2 1
2 1
2 2
2 1
1 2
2 2
2 2
2 1
2 2
2 2
2 1
2 2
2 2
1 1
2 2
2 1
2 2
2 2
1 2
2 2
2 1
1 1
1 1
1 2
1 1
1 2
2 1
2 1
2 2
1 1
1 1
2 1
1 2
2 2
1 2
1 2
1 2
1 1
2 1
2 2
1 2
2 2
1 1
2 2
2 2
2 2
1 2
1 2
1 1
2 2
1 2
1 1
2 1
1 1
1 2
2 2
1 2
2 1
1 2
1 2
2 2
1 1
1 2
1 2
1 2
1 2
2 2
2 1
2 1
2 2
2 2
2 2
2 2
2 2
1 2
1 2
2 2
1 2
1 2
2 2
2 1
2 1
1 1
2 2
2 2
2 2
1 1
1 2
1 1
2 2
2 1
2 1
1 2
2 1
2 2
1 1
1 2
1 2
2 1
1 1
1 2
2 1
1 2
2 1
1 1
2 1
1 2
1 1
2 1
2 1
2 2
2 1
2 1
1 1
1 2
2 1
2 2
2 1
2 2
2 1
2 2
2 1
1 2
2 2
1 2
2 1
2 1
1 2
1 2
2 1
1 1
2 2
2 1
1 2
1 2
2 1
1 1
2 2
1 1
1 2
1 1
2 1
1 2
1 1
2 1
1 2
1 2
1 1
2 2
1 2
1 1
1 1
2 2
1 1
2 1
2 2
2 1
1 1
2 2
2 2
2 1
2 2
2 1
1 1
1 2
1 2
2 2
1 1
1 1
1 1
1 2
1 2
2 2
2 1
1 2
2 2
2 2
2 2
2 2
1 1
2 2
1 2
1 1
2 2
1 1
2 2
1 1
2 1
1 2
1 2
1 2
1 1
2 1
2 1
1 1
1 2
1 1
1 2
1 2
1 1
1 2
2 1
2 1
2 2
1 2
2 1
1 2
1 1
1 1
2 2
2 2
2 2
2 2
2 2
2 2
1 2
1 1
2 1
1 1
2 1
2 1
1 1
2 2
2 2
2 1
1 2
2 1
2 2
1 2
1 2
2 1
1 2
2 2
2 1
2 2
1 1
2 1
1 2
1 2
2 2
2 2
1 1
2 2
2 1
2 2
2 1
1 2
2 2
1 1
1 1
1 1
1 1
1 2
2 2
2 2
2 1
1 1
2 1
1 2
1 1
1 1
1 1
2 1
2 1
1 2
1 1
2 2
2 1
2 1
1 1
1 1
2 2
2 2
2 2
1 1
2 1
2 2
1 1
1 2
2 1
2 2
2 1
2 2
1 2
1 1
2 1
2 2
2 2
1 1
1 2
2 1
2 1
2 1
2 2
1 2
1 2
1 1
2 2
2 1
2 2
1 2
1 2
2 1
1 1
2 2
1 1
1 2
2 1
1 1
2 2
1 2
2 1
1 2
1 1
2 2
2 2
2 1
1 1
2 2
1 2
2 1
2 2
2 2
2 2
1 1
2 1
1 1
2 2
2 2
1 1
2 1
2 1
1 1
1 1
2 2
2 2
1 2
1 2
1 2
2 2
2 2
1 2
2 1
1 1
1 2
1 1
1 1
1 2
1 1
1 2
2 1
1 1
2 1
1 1
1 1
2 1
2 2
2 1
2 2
2 1
2 2
2 1
2 2
2 1
2 2
1 1
1 2
1 2
2 2
1 2
1 1
1 2
1 1
1 2
1 1
2 1
2 1
2 2
1 2
2 1
2 1
1 2
2 1
2 2
1 2
1 2
1 1
1 2
2 2
2 2
1 2
1 1
1 1
2 2
1 1
2 1
1 1
2 2
2 1
1 2
1 1
1 1
1 2
1 2
1 2
1 1
1 2
1 1
1 1
2 2
1 1
1 1
2 1
2 1
2 2
1 1
1 1
1 2
2 1
1 1
1 2
2 2
1 1
2 2
2 2
2 2
1 2
2 1
2 2
1 2
2 1
1 1
1 2
2 2
2 1
1 2
2 2
1 1
1 1
2 1
2 1
2 2
2 2
2 1
2 2
1 1
1 1
2 1
1 2
2 1
1 1
2 1
1 1
1 1
2 2
1 2
1 2
2 2
1 1
1 1
1 1
2 1
2 2
2 2
2 1
2 1
2 2
1 2
1 2
2 2
2 1
1 2
1 2
1 1
2 2
2 1
2 2
2 1
1 2
2 2
1 1
2 2
1 2
2 1
2 1
1 2
1 2
2 1
1 1
2 2
2 1
2 2
2 2
1 2
2 2
2 2
1 2
1 2
1 1
2 2
2 2
2 1
2 2
1 1
2 1
1 1
1 2
1 1
1 1
1 2
2 2
1 1
1 1
1 2
1 2
1 2
1 1
2 1
1 2
2 1
1 2
2 2
1 1
1 2
1 2
2 2
1 1
2 1
2 1
2 1
1 1
2 2
2 2
1 1
2 2
1 2
1 1
2 1
1 1
2 1
2 1
1 2
2 1
2 1
1 1
2 2
2 1
1 2
2 2
2 1
2 2
1 2
2 1
1 1
1 2
2 1
2 1
2 2
2 2
2 2
2 2
2 1
2 1
2 2
1 1
2 2
2 1
2 2
1 1
1 2
2 2
2 1
1 2
2 1
1 2
1 1
1 1
1 2
2 1
2 1
1 2
1 1
2 1
2 2
1 2
2 2
1 2
2 2
1 2
2 1
1 2
1 2
2 2
2 1
2 2
1 1
2 1
2 2
1 2
2 2
1 2
2 1
1 1
2 2
2 1
2 1
2 1
2 1
1 1
2 2
1 2
2 1
2 1
2 2
2 1
1 1
2 1
2 2
2 1
2 1
1 2
2 2
2 1
2 2
1 1
1 1
2 2
1 1
2 2
2 2
2 2
1 2
2 2
1 2
2 2
2 2
1 1
2 1
1 2
1 1
2 1
1 1
2 1
1 1
2 2
1 2
2 2
2 1
1 2
1 2
1 2
2 2
2 1
2 2
2 1
2 1
2 1
2 1
1 2
2 1
1 1
1 1
2 2
1 2
2 2
1 2
1 2
1 1
1 2
2 2
2 1
2 1
2 2
1 1
2 2
1 1
2 1
1 2
1 2
2 2
2 1
2 1
2 2
1 1
1 1
2 1
1 2
2 1
1 1
2 1
1 1
1 2
1 1
2 2
2 2
2 1
2 2
1 2
1 1
1 1
2 1
2 2
2 1
1 2
1 2
2 2
1 1
2 2
1 1
1 1
1 2
1 1
2 1
1 1
1 2
1 2
1 2
2 1
1 1
2 1
2 2
2 1
2 2
2 2
1 2
1 1
1 2
2 2
2 2
1 1
1 2
1 1
1 2
2 2
1 1
1 2
2 2
2 2
2 1
1 2
2 1
2 2
2 1
2 2
1 1
2 1
1 2
1 2
2 2
2 1
2 2
2 2
1 1
2 1
2 1
1 2
1 2
2 2
2 1
2 1
1 1
1 2
1 2
1 2
2 1
2 1
2 1
1 2
2 2
2 2
2 1
1 1
2 1
1 2
2 2
1 1
2 1
1 1
2 1
1 2
1 1
1 1
1 2
1 1
2 2
2 2
1 1
1 1
1 2
2 1
1 1
2 2
1 2
1 2
1 2
2 1
2 1
1 2
1 1
1 2
2 2
1 2
1 1
2 1
2 1
1 1
2 1
1 2
1 1
2 2
2 1
2 1
1 2
1 1
1 1
1 1
2 2
2 2
1 2
2 2
2 1
2 2
1 2
2 1
2 2
1 2
2 1
1 2
2 2
1 1
1 2
2 1
1 1
1 2
2 2
2 2
1 2
2 2
1 2
1 1
1 2
1 1
1 1
2 1
2 1
1 2
2 2
2 1
2 2
1 2
2 1
1 1
2 2
1 2
1 1
1 2
1 1
2 1
2 1
1 1
2 1
2 1
1 2
2 1
1 1
2 1
1 2
2 1
1 2
1 2
1 2
1 2
2 2
1 2
1 1
2 1
2 1
1 2
1 2
1 1
1 1
2 1
2 1
2 1
1 1
2 2
2 2
1 2
2 2
2 2
2 2
2 2
2 2
2 2
1 1
1 1
2 2
2 2
1 2
2 1
1 2
2 2
2 2
2 2
1 1
1 2
2 2
2 2
2 2
1 2
2 2
2 2
1 1
1 1
2 1
2 1
2 2
2 2
2 2
1 2
2 2
1 2
1 2
1 2
2 2
2 1
1 2
2 2
1 2
2 1
1 1
1 2
2 2
2 1
1 1
2 2
2 1
2 2
2 1
2 1
1 2
2 1
2 2
2 2
1 1
1 1
1 2
1 1
2 2
1 2
1 1
1 2
2 2
1 2
1 2
1 1
2 1
1 1
1 1
2 2
2 2
1 2
1 1
1 2
1 1
1 2
2 1
2 1
1 2
1 1
1 2
1 1
1 1
2 2
2 2
2 1
1 1
2 2
1 2
1 1
1 2
2 1
1 2
1 1
1 1
1 1
1 2
2 1
2 1
1 1
1 2
1 2
2 2
2 1
2 2
2 1
2 1
1 1
1 1
2 1
1 1
1 1
2 2
1 2
1 1
1 1
1 2
2 2
2 1
2 2
2 1
1 1
1 2
1 2
1 1
2 1
2 2
2 2
2 2
2 2
1 1
1 2
2 1
1 2
1 1
2 1
2 2
1 2
1 2
2 1
2 1
1 2
2 2
2 1
2 1
2 1
1 2
1 1
2 2
1 2
2 1
1 2
1 2
2 2
2 2
1 1
1 1
2 2
2 2
2 2
2 1
2 2
1 1
1 2
2 1
2 1
2 1
1 1
2 1
1 2
1 1
1 2
2 2
1 1
2 2
1 1
1 1
1 2
1 2
2 2
2 2
1 2
1 2
1 2
2 1
2 2
2 1
2 1
1 1
1 2
2 1
1 1
2 1
1 1
2 1
1 1
2 2
1 2
1 2
2 1
2 1
2 2
2 1
1 2
1 2
2 1
1 1
2 2
1 2
1 1
1 1
2 1
1 1
1 2
1 1
2 1
1 1
1 1
1 1
2 2
1 2
1 2
1 2
1 1
1 1
1 2
2 1
1 1
2 1
1 2
1 1
1 1
1 1
1 2
2 2
2 1
1 1
1 2
1 1
2 1
2 2
1 2
1 1
2 1
2 2
1 1
2 1
2 2
1 2
2 1
1 2
2 1
1 1
1 1
1 1
2 2
2 1
2 2
2 2
2 1
1 2
1 2
1 2
1 2
2 1
2 2
2 1
1 1
2 2
1 2
2 1
1 2
1 1
1 1
1 2
2 1
2 2
1 2
1 1
1 1
1 1
1 2
1 1
2 2
1 1
2 1
2 2
1 1
1 1
2 2
1 2
1 2
1 2
1 2
1 1
2 2
2 1
2 2
2 2
1 2
1 2
1 1
2 2
2 2
1 2
2 1
2 1
2 1
1 2
1 2
2 1
2 2
1 2
2 1
1 2
1 1
2 2
2 2
2 1
1 2
2 2
2 2
1 1
1 2
1 2
1 2
1 1
2 2
1 1
1 1
2 2
2 1
1 1
2 2
1 1
2 1
2 2
2 2
2 1
2 2
1 1
2 2
2 2
2 2
1 1
1 2
1 2
1 2
2 2
1 1
2 2
2 2
2 2
1 2
1 2
1 1
1 1
1 2
1 2
2 2
1 1
1 1
1 2
2 1
2 2
1 2
1 1
2 2
1 2
2 1
1 1
2 1
2 1
1 1
1 2
1 1
2 2
2 2
1 2
2 2
1 1
2 2
1 2
1 1
2 2
1 2
2 2
1 2
1 2
2 2
1 1
2 1
1 1
2 1
2 2
1 1
1 2
2 2
1 2
1 2
2 1
2 2
1 1
1 1
1 2
2 2
2 2
2 2
1 2
2 2
2 2
1 1
1 1
2 1
2 2
1 2
1 2
2 2
1 2
1 2
1 2
1 1
1 2
1 1
1 1
2 1
2 2
1 2
1 2
1 2
1 2
1 1
2 1
1 2
1 1
1 1
2 1
2 1
2 1
2 1
1 2
1 2
1 2
2 1
2 1
1 2
1 2
1 1
2 2
2 1
1 1
1 2
1 2
2 1
1 2
2 1
2 2
1 2
2 1
1 1
1 1
1 1
2 1
2 1
1 1
1 1
1 1
2 1
1 2
1 1
2 2
1 2
2 2
2 1
1 2
1 1
2 1
1 2
2 2
1 2
2 2
2 2
2 2
1 1
2 1
1 1
2 1
1 2
1 2
1 1
1 2
2 2
2 1
1 1
1 2
2 1
1 1
1 2
2 1
2 2
2 1
1 1
2 1
1 2
1 2
1 2
1 2
1 1
2 1
1 1
1 1
2 2
2 2
1 2
2 2
2 2
2 2
2 1
1 2
2 1
1 1
2 1
1 1
1 2
2 2
2 2
2 1
1 1
1 1
2 2
2 1
2 1
1 2
1 2
1 2
2 1
1 1
1 1
2 2
1 1
2 2
2 1
2 2
1 1
1 1
2 1
1 2
1 1
2 1
1 2
1 1
1 1
2 1
1 1
1 2
1 1
1 1
1 1
1 2
2 1
1 1
2 2
1 2
1 1
1 2
1 2
1 2
2 2
2 2
1 1
1 1
2 1
2 2
1 1
2 1
2 2
1 1
2 1
1 2
1 1
1 1
1 2
2 2
1 1
2 2
1 2
2 1
1 2
1 2
2 2
2 2
2 2
2 2
2 2
2 2
2 2
1 1
2 2
2 2
2 1
1 2
2 1
2 2
1 1
2 2
2 1
2 1
2 1
1 2
1 1
2 2
2 1
2 1
1 1
2 1
1 1
1 1
2 2
1 2
2 1
2 2
1 2
1 1
2 2
2 2
1 1
1 1
1 1
2 2
2 1
2 1
1 2
1 2
1 2
2 2
1 1
2 1
1 1
2 2
2 1
2 2
2 2
2 1
2 2
2 1
2 2
1 1
1 1
1 2
2 2
1 1
2 2
1 1
1 1
2 1
2 2
2 2
2 2
2 2
2 1
2 2
2 1
2 2
1 1
2 2
2 2
2 1
2 1
1 2
2 1
1 1
2 2
1 2
2 2
1 1
1 2
2 2
2 1
1 2
1 2
2 1
1 2
1 1
2 1
2 2
2 1
2 1
2 1
1 2
1 1
2 2
1 2
2 2
2 2
1 1
1 2
2 1
2 2
2 1
1 2
2 2
1 1
2 1
2 1
2 2
1 1
2 2
2 1
2 2
1 2
1 2
1 2
2 2
2 2
1 2
1 1
1 2
2 1
1 2
1 2
1 1
2 1
1 2
1 1
2 2
2 2
1 1
2 2
2 1
1 2
1 2
1 2
2 2
1 1
1 2
1 1
2 1
2 1
2 2
2 1
1 2
2 1
1 2
1 1
2 2
1 1
2 1
2 1
1 2
1 2
2 2
1 2
2 1
1 1
1 1
2 1
2 1
1 2
1 1
1 1
1 2
1 1
2 1
1 1
1 1
2 1
2 2
2 2
2 1
2 2
1 2
1 2
1 1
2 1
2 1
1 1
2 1
1 2
2 1
2 2
2 1
2 1
1 2
1 2
2 2
1 1
1 1
1 2
2 2
1 2
1 2
1 2
2 2
1 1
1 2
1 2
2 1
2 1
2 1
1 2
2 2
1 1
1 1
2 2
1 1
2 1
2 2
1 1
1 1
1 1
1 2
1 1
2 1
2 1
1 2
1 2
1 1
2 1
2 1
2 1
1 1
2 1
2 2
2 2
1 2
1 1
2 2
2 2
1 1
2 2
1 2
2 1
2 1
2 1
1 1
1 1
2 2
1 1
1 2
2 2
1 2
2 1
2 2
2 1
2 1
2 1
2 1
2 2
1 2
2 2
1 2
1 1
2 1
2 1
1 2
2 2
1 1
1 2
2 1
2 2
1 1
2 2
2 1
1 2
1 1
2 2
1 1
1 1
2 2
2 1
1 1
1 1
1 2
1 1
1 2
2 1
2 1
2 2
2 2
2 1
2 2
2 1
1 2
2 2
1 1
2 2
1 1
2 1
1 1
1 2
2 2
1 1
2 1
1 1
1 2
2 1
1 1
1 1
1 1
2 2
1 1
2 1
1 2
1 1
2 1
1 2
2 1
1 1
2 1
2 2
1 1
2 1
1 2
1 2
2 1
2 1
1 2
2 2
1 1
2 2
1 1
2 1
2 1
2 2
1 1
2 1
2 2
2 1
1 1
2 2
1 1
2 2
2 1
2 1
1 1
2 2
2 1
1 2
2 1
2 1
2 1
1 2
2 2
1 1
1 1
1 2
1 2
1 2
2 1
2 1
1 2
2 2
2 2
2 1
2 2
1 1
2 1
1 1
2 2
1 2
2 2
2 2
2 1
1 2
1 2
2 2
2 2
2 2
1 2
2 1
1 2
1 1
2 1
1 2
1 1
1 2
1 2
1 1
1 1
2 2
1 1
2 1
1 2
2 1
2 1
2 2
2 1
2 1
1 2
1 2
1 2
2 1
2 1
2 1
1 1
2 2
2 2
2 1
2 1
1 1
1 1
2 1
1 1
2 2
1 2
1 1
1 2
2 2
2 2
2 2
1 2
1 2
2 1
2 1
2 1
1 2
1 1
2 1
1 2
1 1
1 1
2 2
2 2
1 1
2 1
1 1
1 2
2 1
1 2
1 1
2 2
2 1
1 1
1 1
2 2
1 2
2 2
2 2
2 2
1 2
2 1
2 1
2 1
1 1
1 1
1 1
1 2
1 1
1 1
1 1
2 1
2 2
2 2
2 2
1 1
1 2
1 2
2 2
1 1
1 1
1 2
2 2
1 2
2 1
2 1
1 2
1 1
2 2
1 1
1 1
1 1
2 2
1 2
1 1
1 2
2 2
1 2
1 2
2 2
2 1
2 1
2 1
1 2
2 2
1 2
1 2
1 1
1 2
1 1
2 1
2 2
2 1
2 1
1 2
2 2
2 1
2 2
2 2
1 2
2 1
2 2
2 2
2 1
2 2
1 1
1 2
1 1
1 1
2 1
1 1
1 1
1 1
2 2
2 2
1 1
1 2
2 2
2 2
1 1
2 2
2 1
1 2
1 2
2 2
2 2
1 1
2 2
1 2
2 1
1 2
2 2
1 2
1 2
1 1
1 1
1 2
1 1
1 2
1 2
2 1
1 2
2 1
2 1
2 1
2 2
2 1
1 1
2 1
2 1
1 1
1 2
1 1
2 1
1 2
1 2
1 1
2 2
1 2
2 2
2 1
2 2
2 1
1 1
1 2
2 1
1 2
2 2
2 1
1 1
1 2
2 1
1 1
1 1
2 1
2 2
2 2
1 1
2 1
2 2
2 1
1 2
2 1
2 1
2 2
1 1
2 2
1 1
1 2
2 1
1 2
2 1
1 2
1 1
2 1
1 1
2 2
1 1
2 2
2 1
2 2
1 1
1 1
1 1
2 2
2 1
2 1
2 1
2 2
2 1
1 2
2 1
2 2
1 2
2 1
1 1
1 2
2 1
2 1
2 1
1 2
2 2
2 2
2 2
2 2
2 2
1 1
2 1
2 2
2 1
2 2
2 2
1 2
1 2
1 2
1 1
2 2
1 1
2 2
1 1
1 1
2 1
1 2
1 1
1 1
1 2
1 1
1 1
1 2
1 1
2 2
1 1
1 2
1 1
1 1
1 1
2 2
1 1
1 1
2 1
2 2
2 1
1 2
2 2
2 2
2 2
2 2
2 1
1 1
1 2
2 2
1 2
1 1
1 2
2 2
1 1
2 2
1 1
1 2
1 2
1 2
1 1
1 1
1 2
2 1
1 2
2 2
2 1
2 1
1 1
2 1
2 2
2 1
2 1
2 1
2 2
2 1
1 2
1 2
2 2
1 2
2 1
2 1
2 2
2 1
1 2
1 1
2 1
2 2
2 2
2 1
2 2
1 1
1 1
2 2
2 2
2 1
1 2
1 2
1 1
2 1
2 1
2 2
1 1
1 1
1 2
1 1
1 1
1 2
1 1
2 2
1 2
1 1
2 2
2 2
2 1
1 2
2 1
1 2
2 2
2 1
1 2
2 1
1 2
2 1
2 2
2 2
2 1
1 1
1 2
2 1
1 2
1 1
2 1
1 2
2 2
2 1
2 2
1 1
2 2
2 1
2 1
2 2
2 2
2 1
1 1
2 1
2 1
1 1
1 1
1 1
2 2
2 2
1 1
2 2
1 2
1 2
2 2
2 1
2 2
2 2
1 1
2 1
2 2
1 1
2 2
2 1
1 1
2 1
2 1
2 2
2 1
1 1
2 1
2 1
1 1
2 2
2 1
2 2
2 2
1 2
2 2
1 2
1 1
2 2
1 2
1 2
2 2
2 1
1 1
1 2
2 1
2 1
1 1
1 2
1 1
2 2
2 2
2 2
1 2
2 2
2 2
1 2
1 2
2 1
2 1
2 2
1 2
2 2
2 1
2 2
1 1
2 1
2 2
2 1
1 1
1 2
2 2
1 2
2 2
1 1
1 2
2 2
2 2
1 2
2 2
2 2
2 1
2 1
2 2
1 2
1 2
1 1
2 2
1 2
2 2
2 1
1 1
1 1
1 2
1 1
2 1
2 2
1 1
1 2
2 2
1 2
2 1
2 1
2 1
1 2
2 1
2 2
1 1
2 2
2 1
1 1
1 1
2 1
1 2
1 1
1 1
2 2
2 1
1 2
2 2
1 2
2 2
1 1
1 1
2 1
2 1
1 2
2 2
1 1
2 1
1 2
1 1
2 1
2 1
1 1
2 2
2 1
1 2
2 2
1 2
2 1
1 1
2 1
2 1
1 2
2 2
1 2
1 2
2 2
1 1
2 2
2 1
2 1
2 2
2 1
2 2
1 1
1 1
1 2
1 1
2 1
2 1
2 1
2 2
1 1
2 1
1 1
1 1
1 1
2 1
2 2
1 2
1 2
1 1
1 1
2 2
1 2
2 2
2 2
2 2
2 2
1 2
2 2
1 2
2 2
1 2
1 2
1 2
1 1
2 1
1 2
2 1
1 2
1 1
2 2
1 2
2 2
1 1
2 2
2 1
1 1
2 1
2 2
2 1
1 2
1 1
2 2
2 2
1 1
2 2
1 1
2 2
1 1
1 1
2 1
2 1
2 2
1 1
2 2
1 2
2 2
1 1
2 2
1 1
1 2
2 2
1 2
1 1
1 2
2 2
1 2
2 2
2 1
2 1
1 1
2 1
2 2
2 2
2 2
1 1
2 1
1 1
1 2
2 2
1 1
1 1
2 1
2 1
2 1
2 1
2 2
1 2
1 2
1 1
2 1
2 1
1 1
2 1
2 2
1 2
2 2
2 1
1 2
1 2
2 1
2 2
1 2
1 2
1 1
1 2
1 2
1 2
1 1
1 2
1 2
2 1
2 2
2 2
1 2
1 1
1 1
1 1
1 1
2 1
2 2
1 1
2 1
1 1
2 2
1 2
1 2
2 2
2 2
2 1
2 1
1 1
1 2
2 1
2 1
2 2
1 2
2 2
2 1
2 2
2 1
1 1
1 2
2 1
2 1
1 1
2 1
1 2
1 2
1 2
1 2
2 2
1 2
1 2
1 2
2 1
1 2
1 2
2 1
2 1
1 2
1 2
2 2
2 1
1 2
1 1
2 1
2 2
2 2
1 2
1 1
2 2
2 1
1 1
1 1
2 2
2 2
2 2
1 1
2 1
1 2
1 1
1 2
2 1
2 2
2 1
2 2
1 1
1 2
2 2
1 2
2 1
1 1
2 2
2 2
2 1
1 2
2 2
2 2
1 2
1 2
2 1
1 2
2 1
2 2
1 1
1 1
2 1
1 1
2 2
1 2
2 1
2 1
1 2
2 1
1 1
2 2
2 1
2 2
1 1
1 1
2 2
2 2
2 2
2 2
1 1
1 2
1 1
2 1
2 2
2 2
2 1
1 2
2 2
1 2
2 1
1 1
1 1
2 1
2 2
2 2
1 1
1 2
2 1
1 1
1 1
1 2
1 2
2 1
1 1
2 2
1 1
2 2
2 1
1 1
1 1
2 2
2 1
1 1
2 1
2 1
2 1
2 1
2 2
2 2
1 2
2 1
1 2
2 2
2 2
2 1
1 2
2 2
2 2
1 1
2 2
1 1
1 2
2 1
2 2
1 2
2 1
2 2
1 2
1 2
2 1
1 2
1 2
2 1
2 2
1 2
2 2
1 1
2 1
2 1
1 2
2 2
2 1
1 1
2 2
1 1
2 2
2 2
2 2
1 1
1 1
2 2
1 1
2 2
1 2
2 2
2 1
2 1
1 1
2 1
2 1
1 1
1 2
1 1
2 1
1 1
1 1
2 2
1 2
2 2
1 2
2 1
1 2
1 1
2 1
2 2
1 2
2 1
2 1
1 1
2 2
1 2
1 1
2 1
1 1
1 2
1 1
2 1
1 2
2 1
2 1
1 1
1 2
2 2
2 1
1 2
2 1
2 1
2 2
1 1
2 2
1 2
1 1
2 2
2 2
2 2
1 1
2 1
2 1
2 2
1 2
2 2
2 1
2 2
1 1
2 2
2 1
2 1
1 2
1 2
1 2
1 1
1 2
1 2
2 1
2 2
1 2
2 1
2 1
1 1
1 2
1 2
2 1
2 1
1 2
2 1
2 1
2 1
1 1
1 2
1 2
1 2
2 1
1 1
1 1
2 2
2 2
2 1
2 1
1 2
1 2
1 2
2 1
2 2
1 2
1 1
2 2
2 2
2 2
1 2
1 1
1 2
2 2
2 1
2 2
1 2
1 1
2 1
2 1
1 2
1 2
1 2
2 2
2 2
1 1
1 2
2 2
2 1
2 1
2 1
1 1
2 1
2 1
1 2
2 2
2 2
2 1
1 1
2 1
1 1
2 2
2 2
1 1
1 1
2 1
1 1
1 2
2 2
1 1
1 2
2 2
2 1
1 2
2 1
2 1
2 2
2 1
2 2
1 2
2 1
1 1
2 1
2 1
2 2
2 1
1 1
2 1
1 1
1 2
1 2
2 2
1 2
1 2
2 2
1 1
2 2
2 1
1 2
2 1
2 2
1 1
2 2
2 2
1 2
2 1
1 2
1 2
1 1
2 2
2 2
2 1
1 1
2 1
1 1
1 2
1 1
2 1
1 1
1 2
2 1
1 2
1 1
1 1
1 2
2 2
2 1
1 2
2 1
1 2
2 2
2 2
2 1
2 1
1 2
1 2
2 1
2 1
1 1
1 2
1 1
1 2
2 2
2 1
1 1
2 1
2 2
2 1
2 2
2 1
2 2
2 2
1 2
2 1
1 1
1 1
2 2
2 2
1 1
2 1
2 1
2 2
1 1
2 2
1 1
2 1
1 2
1 2
2 1
1 1
1 1
1 1
1 2
1 2
1 2
2 2
2 2
2 2
1 1
1 1
2 1
1 1
2 1
1 2
1 2
1 2
2 2
1 2
1 1
2 2
1 2
1 2
2 2
1 1
2 2
2 2
1 1
2 1
2 2
1 1
2 1
1 2
2 2
1 2
2 2
2 1
2 1
1 1
1 1
2 2
1 1
1 1
1 1
1 1
2 1
2 1
2 2
2 2
2 1
1 1
1 2
1 2
2 1
1 1
1 1
1 2
2 1
2 1
1 2
2 1
2 2
1 2
1 2
2 1
2 2
1 2
2 2
2 2
1 2
2 1
2 2
1 1
1 1
1 1
1 2
1 2
1 1
2 1
2 2
2 1
1 1
1 1
2 1
2 1
2 1
2 2
1 1
2 1
2 1
1 2
2 1
1 1
1 1
2 2
1 2
2 2
2 1
1 2
1 1
1 1
2 1
1 1
2 1
2 1
2 1
2 1
2 2
1 1
1 2
1 2
1 1
1 2
2 1
1 2
2 1
2 2
1 2
1 2
1 2
1 1
2 1
1 1
1 2
2 2
2 2
1 2
1 1
2 1
1 1
1 2
1 2
1 1
2 2
2 1
1 1
1 1
2 1
2 1
2 1
1 1
2 2
1 2
2 2
2 2
1 2
2 1
2 1
1 1
1 2
2 2
1 1
1 2
2 2
1 1
2 2
1 1
2 1
2 1
1 2
2 2
2 2
2 1
1 2
2 2
1 2
1 1
2 2
1 2
2 1
1 2
2 1
1 2
1 2
2 1
2 1
1 1
1 1
2 1
1 1
1 1
2 1
1 1
1 1
2 1
1 1
1 2
2 1
2 1
1 1
1 1
2 1
2 2
2 1
1 1
2 2
2 1
2 2
1 1
2 1
1 2
1 1
2 1
2 1
1 2
1 1
2 2
1 2
2 2
1 2
1 2
2 1
1 1
2 2
1 2
2 1
2 1
2 1
1 2
1 1
1 1
1 2
2 1
2 2
2 2
2 1
2 1
2 2
1 1
1 1
2 2
1 2
2 2
1 1
1 2
2 1
2 2
2 2
2 2
1 2
2 1
2 2
2 1
2 2
1 1
2 2
2 1
1 1
1 2
2 2
2 2
1 2
2 2
2 1
1 2
2 1
2 2
2 1
1 2
1 2
1 2
1 2
2 1
2 1
1 2
1 1
1 2
1 1
2 1
2 2
2 1
1 1
1 2
1 1
1 2
2 2
2 2
2 1
1 2
1 2
1 2
1 2
1 1
1 2
2 2
1 1
1 2
2 2
2 2
1 1
1 2
2 1
2 1
1 1
1 2
2 2
1 1
2 1
1 2
1 1
1 2
2 2
1 1
1 1
1 1
1 1
1 1
1 1
1 1
2 1
2 2
2 1
1 2
1 1
1 1
1 1
1 2
1 1
2 2
2 2
2 1
1 2
1 2
2 1
2 2
2 1
1 1
2 1
1 2
1 1
1 1
1 2
2 1
1 1
1 1
1 1
1 2
1 2
1 2
1 1
1 2
1 1
1 1
2 2
1 2
1 1
1 1
1 1
2 1
2 2
2 2
1 1
2 1
1 2
2 1
2 1
1 1
1 1
2 2
2 2
2 1
2 2
1 2
2 2
1 1
1 2
1 2
2 1
2 2
1 2
1 2
1 1
2 1
2 1
1 2
2 2
2 1
1 1
2 1
1 1
2 2
1 1
1 1
1 2
2 1
2 1
2 1
1 1
2 1
2 1
2 1
1 2
1 1
1 2
1 2
2 1
1 2
2 1
1 2
2 2
2 2
2 2
2 2
2 1
2 1
2 1
2 1
2 1
2 2
2 2
1 2
2 1
1 1
1 1
1 2
1 2
1 1
1 1
1 1
2 1
2 1
2 2
1 2
2 1
2 2
2 2
2 2
1 2
1 1
2 1
1 2
1 2
2 2
2 2
1 1
1 2
2 2
1 1
1 2
2 2
1 2
1 2
2 1
2 1
2 1
2 1
1 1
1 2
1 1
2 2
1 2
2 1
2 1
1 1
2 2
2 1
1 2
1 1
2 2
2 2
2 1
2 1
1 2
1 2
1 2
1 2
1 2
1 2
1 2
2 1
1 2
2 2
1 2
2 1
2 1
2 1
1 2
1 2
2 2
2 2
1 1
1 2
2 1
1 1
2 1
1 1
2 2
2 2
1 1
2 2
2 2
1 1
2 1
1 1
2 2
1 1
1 2
1 1
2 2
2 2
2 1
1 2
1 1
2 1
1 2
2 1
2 1
1 2
1 1
2 1
1 2
2 1
1 2
1 1
1 2
2 1
2 2
2 1
2 2
1 2
2 2
2 1
2 1
1 1
2 2
1 2
1 2
1 1
2 1
2 1
2 2
2 2
1 2
2 1
2 1
2 1
2 1
1 1
2 2
2 2
1 1
2 1
2 1
1 1
2 2
2 1
1 1
1 2
2 1
2 2
2 1
2 1
1 1
1 2
1 1
1 1
2 2
1 2
1 1
2 1
1 2
2 1
2 2
2 2
1 2
2 1
2 1
2 1
1 1
1 2
2 2
1 1
1 2
1 2
1 2
1 1
1 2
1 2
1 1
2 2
1 1
1 1
1 1
2 2
1 1
2 2
1 1
2 1
2 2
2 2
1 1
1 2
2 2
1 2
1 1
1 1
1 1
2 1
1 2
1 1
1 2
1 2
1 2
2 1
1 2
2 1
2 2
1 2
2 2
1 2
1 1
2 1
1 1
1 2
1 2
1 1
2 2
1 1
1 2
2 2
2 2
2 2
2 2
1 2
2 1
1 2
1 1
2 1
2 2
1 2
1 2
2 2
1 2
2 1
1 2
1 1
1 2
2 2
2 1
1 1
2 2
1 2
2 2
2 1
1 1
2 1
1 2
2 1
1 1
2 2
2 2
2 1
1 1
2 2
2 1
2 1
2 1
2 1
2 1
1 1
1 2
1 2
2 1
2 1
1 2
2 2
2 1
1 2
2 2
2 2
2 2
2 1
1 1
2 2
1 2
2 1
2 1
2 2
2 2
1 1
2 1
1 1
1 2
1 1
1 2
1 2
1 2
2 2
1 2
1 1
1 1
1 2
1 2
2 2
2 2
1 1
1 2
2 1
2 2
2 1
1 2
1 2
1 1
1 1
2 2
2 1
1 2
2 2
2 2
2 1
1 2
1 2
2 1
2 1
1 1
1 1
2 2
1 1
2 2
1 2
1 2
1 2
2 2
2 1
1 2
1 2
1 2
2 2
2 1
2 1
2 2
1 2
1 1
1 2
2 2
2 2
1 1
2 2
1 1
1 2
2 2
1 2
1 2
2 1
2 1
2 1
1 1
1 1
1 2
2 1
2 1
1 1
2 2
1 1
2 2
2 2
1 2
1 2
2 2
1 1
1 1
2 2
1 1
1 2
1 1
2 2
1 2
1 1
2 1
2 1
1 2
1 2
2 1
2 2
2 1
1 2
2 1
2 2
2 2
2 2
1 2
1 2
1 1
2 1
2 2
2 1
2 1
1 1
1 2
2 1
2 2
2 2
2 1
1 2
1 2
2 1
1 1
2 2
2 2
2 1
1 2
2 1
1 2
2 1
1 1
1 1
2 1
1 1
1 2
1 2
1 1
2 1
1 1
1 1
1 1
2 1
2 2
2 1
2 1
2 2
2 1
1 1
2 1
2 2
2 1
1 1
1 1
2 2
1 1
2 1
1 2
2 2
1 2
2 1
2 2
1 1
2 1
1 2
2 2
2 1
1 1
2 2
2 2
2 2
2 1
1 2
1 2
1 1
1 2
2 1
2 2
2 2
1 2
1 2
1 1
1 1
2 2
1 1
2 2
1 1
2 2
2 2
2 2
1 2
2 1
1 2
1 1
1 1
1 1
2 1
1 1
2 2
1 1
2 1
1 2
2 2
1 2
2 1
1 1
2 1
1 1
2 1
1 2
1 1
2 2
2 2
2 1
2 2
2 1
1 2
2 2
1 1
1 2
1 1
1 2
2 1
1 1
2 1
1 2
2 1
1 1
2 1
2 2
2 1
1 2
2 1
1 1
2 1
1 1
1 1
2 1
2 2
1 1
1 1
2 2
1 2
1 1
2 1
2 1
2 1
1 2
2 2
2 2
1 1
1 2
2 2
2 2
1 2
1 2
1 2
2 1
1 2
1 1
1 2
2 2
2 1
1 1
1 1
2 1
2 1
1 1
2 1
1 1
2 2
1 2
1 1
1 1
2 1
1 1
1 1
1 2
2 2
2 2
2 2
1 1
2 2
1 1
1 2
1 1
2 2
2 1
2 1
2 1
1 1
1 2
2 2
2 1
1 1
1 2
2 2
1 1
2 1
2 1
2 1
2 1
2 2
2 1
1 1
1 1
2 1
2 2
2 2
2 1
2 2
2 2
1 1
1 1
1 1
1 2
1 1
1 2
2 1
1 2
1 1
2 1
2 2
2 2
1 2
2 1
2 2
1 1
1 2
2 1
2 2
1 1
1 2
1 2
1 1
2 2
1 2
2 2
2 1
2 2
1 1
1 1
2 1
1 1
2 2
2 2
2 2
2 1
1 2
1 2
1 2
1 2
2 2
2 2
1 1
1 2
1 1
2 2
1 1
1 1
2 1
2 2
1 2
2 2
2 2
1 1
1 2
2 1
1 1
1 1
2 1
1 1
2 1
2 2
2 1
2 1
2 1
1 2
1 2
2 2
2 1
1 2
1 1
1 1
1 1
1 2
1 1
1 1
2 1
1 2
2 1
2 1
1 1
1 2
1 1
1 1
2 1
2 1
2 1
2 2
2 2
1 2
2 1
1 1
2 2
1 2
2 2
2 2
2 1
2 2
2 2
2 2
2 2
2 1
1 1
2 1
2 1
1 1
2 1
1 1
1 1
1 1
1 1
2 1
1 1
2 1
1 2
1 2
1 2
2 1
2 1
2 1
1 1
2 1
2 2
2 1
2 1
2 1
1 1
2 1
2 1
2 2
1 2
1 1
2 2
2 2
1 2
2 2
2 1
2 1
2 1
2 1
2 2
2 1
2 1
1 2
2 1
2 2
1 1
1 1
2 2
2 2
2 2
2 1
2 2
1 1
2 2
1 1
2 2
1 1
2 1
1 1
1 1
2 2
1 1
2 1
1 2
2 2
2 2
2 2
1 1
2 2
2 2
1 1
2 1
2 2
1 2
1 2
1 1
2 1
1 1
2 1
2 1
2 2
2 2
1 2
2 1
1 2
1 2
1 1
1 1
2 1
2 2
2 1
2 1
2 2
1 1
2 2
2 1
1 2
2 1
2 2
2 1
1 2
1 2
2 1
2 1
2 2
1 1
2 2
2 1
2 1
1 1
1 2
2 2
1 2
1 1
1 1
1 2
2 1
1 2
2 2
1 2
2 1
1 1
2 1
1 2
2 2
2 1
2 1
2 2
1 2
1 2
1 2
1 2
2 1
1 2
1 1
1 2
2 1
1 2
1 1
2 2
2 2
2 1
1 1
2 2
1 2
1 1
1 1
1 1
1 2
2 2
1 2
2 1
2 2
1 1
1 1
2 1
2 1
1 1
1 2
1 2
1 2
2 2
1 2
2 1
1 1
1 2
1 2
1 2
1 1
2 2
1 2
1 2
1 2
2 1
2 2
1 1
2 1
2 2
2 1
2 2
2 1
1 1
2 1
1 2
1 1
1 1
2 2
2 2
2 2
2 2
2 1
2 2
1 1
1 2
1 1
2 1
2 1
1 2
2 1
1 1
1 2
1 1
2 1
2 2
2 2
1 2
1 1
1 2
2 1
2 1
2 1
1 2
1 1
1 1
1 1
1 1
2 2
1 2
1 2
2 1
2 2
1 2
2 1
1 2
1 2
2 2
1 1
1 2
1 1
1 1
1 2
2 1
2 2
2 2
2 1
2 1
1 2
1 2
2 1
2 1
1 1
2 1
1 2
1 1
2 1
2 2
2 2
2 1
2 2
1 1
2 2
1 2
1 2
1 2
1 2
1 2
1 1
2 2
2 2
1 2
2 2
1 2
2 1
2 2
2 1
2 1
2 2
2 1
2 2
1 2
2 1
2 2
2 1
2 1
2 2
1 1
1 2
2 1
2 2
2 2
2 2
2 2
1 1
2 1
1 1
1 1
1 1
2 2
2 1
1 1
2 2
2 2
1 2
2 1
2 2
1 1
1 2
2 2
1 1
1 2
1 1
2 2
1 2
2 2
2 1
2 2
1 2
1 2
2 1
1 1
1 1
1 1
1 1
1 2
1 2
2 1
1 2
1 1
1 1
1 1
1 2
2 2
1 1
1 2
2 2
1 2
2 1
1 1
1 1
1 2
2 2
2 1
1 2
2 1
2 2
2 1
2 2
2 2
2 2
2 1
2 1
1 2
1 2
2 1
2 1
1 1
2 1
1 1
2 2
1 1
2 1
1 2
2 2
2 1
2 2
1 2
1 2
2 1
1 1
2 1
2 1
1 1
2 1
2 2
1 2
1 2
1 1
1 2
2 1
2 1
2 2
2 1
1 1
1 1
1 2
2 2
2 2
2 2
1 1
2 1
2 2
2 1
2 2
2 2
2 1
1 2
1 1
1 1
2 1
1 1
1 2
1 2
1 1
1 1
2 2
1 2
2 2
2 1
1 1
2 1
1 2
2 2
2 2
1 1
1 1
1 2
1 2
1 2
1 2
1 2
2 2
1 1
2 2
1 1
2 2
1 2
2 2
1 2
1 2
2 2
1 1
2 1
1 2
2 1
1 2
2 2
2 2
2 2
2 1
1 1
2 1
2 1
2 1
2 2
1 1
1 1
1 2
1 2
1 1
2 2
1 1
2 2
2 2
2 2
2 2
2 1
1 2
2 2
1 2
2 1
1 2
1 1
2 2
2 1
2 1
2 2
1 1
2 2
1 1
1 2
2 2
1 1
2 2
1 2
2 1
2 1
1 1
1 2
1 2
2 2
2 2
1 1
1 2
1 2
2 1
1 2
1 2
1 2
2 1
1 1
2 1
2 2
1 1
2 2
2 2
2 2
1 2
2 1
2 2
2 2
2 2
2 2
2 1
2 1
2 2
1 2
1 2
1 1
2 2
2 1
2 2
1 2
1 2
1 1
2 2
2 2
2 2
1 2
2 1
1 1
2 2
1 1
1 2
2 2
1 1
1 2
1 1
2 1
2 2
1 2
1 2
1 1
2 2
2 1
1 1
2 1
2 1
2 1
2 1
1 1
2 2
2 1
2 2
2 1
2 2
1 2
2 1
2 1
1 2
1 2
2 2
2 2
2 2
2 2
2 1
2 1
2 2
2 2
2 2
2 2
1 2
2 2
2 2
2 1
2 1
1 1
2 1
2 2
2 2
2 1
2 2
1 1
2 1
1 2
1 2
1 2
1 1
2 2
2 2
1 1
1 2
1 2
1 1
1 1
2 1
2 1
1 1
2 1
1 2
1 2
1 1
2 1
1 1
2 2
1 1
1 2
1 1
1 2
2 1
1 2
1 2
2 2
2 2
2 2
2 1
1 1
1 1
2 1
1 1
1 1
1 2
1 2
2 1
1 2
1 1
2 2
2 2
1 1
1 1
2 1
1 2
1 2
1 1
1 1
2 1
2 1
2 1
2 2
2 2
2 2
1 2
2 1
2 2
1 1
2 1
2 1
2 2
1 2
2 2
2 2
1 2
1 2
2 1
1 1
2 2
2 2
1 2
1 2
1 2
2 1
1 1
2 2
1 1
2 2
2 2
2 1
1 1
2 1
1 1
2 1
1 1
1 2
2 2
1 2
1 2
1 2
2 2
1 1
1 2
1 2
2 2
1 1
1 2
1 2
2 1
2 2
2 2
1 2
1 2
2 1
1 1
2 1
1 2
1 2
1 2
2 1
1 2
2 2
1 2
1 2
1 2
1 2
1 2
2 2
2 1
2 2
1 1
1 1
2 1
1 1
2 1
1 1
1 2
1 2
1 2
1 1
2 2
1 2
1 1
1 2
2 1
1 1
2 1
2 1
1 1
2 1
1 2
2 1
2 1
2 2
2 1
2 2
2 1
1 2
2 2
2 2
2 2
2 2
1 2
1 2
1 2
2 1
1 2
2 2
1 2
2 2
2 1
2 1
1 2
1 1
2 1
2 1
1 2
1 2
1 2
2 2
2 1
2 1
2 2
1 1
2 1
1 2
1 1
1 1
2 1
2 1
1 1
1 2
2 1
1 1
1 1
2 1
1 2
2 2
2 2
2 1
1 2
2 2
2 1
1 2
2 1
2 2
2 1
1 2
1 1
1 1
2 2
2 2
1 2
1 1
2 2
1 2
1 2
2 2
1 1
1 2
1 1
1 1
2 1
2 2
1 1
1 2
1 2
1 1
1 2
2 2
2 2
2 2
1 1
1 1
1 2
2 2
1 1
2 1
1 1
2 1
2 2
2 2
1 1
2 1
1 1
2 1
2 2
2 2
2 2
1 2
1 2
1 2
1 2
1 1
1 2
2 1
1 2
1 2
2 2
2 2
2 1
2 1
1 1
1 1
2 1
2 2
1 1
1 1
2 2
2 2
2 1
2 1
2 2
2 2
2 1
2 2
1 2
2 1
1 1
1 2
2 2
2 2
1 2
1 2
1 2
2 1
2 1
1 1
2 1
2 1
1 1
2 1
2 2
1 2
1 2
1 2
1 2
1 2
2 2
2 1
2 2
1 1
2 1
1 1
2 1
2 1
2 2
1 1
1 1
2 2
1 2
1 2
2 2
1 2
2 2
2 1
2 1
2 2
2 1
1 2
1 2
2 1
2 2
2 1
2 2
1 2
1 2
1 2
1 2
1 1
2 1
2 2
1 1
2 1
1 1
2 1
1 1
2 1
2 1
2 2
2 2
1 1
2 1
2 2
2 1
2 1
1 1
1 1
1 1
1 1
1 2
1 2
2 1
1 1
1 1
1 2
2 2
2 1
1 2
2 1
1 2
2 1
1 1
2 2
1 1
2 1
1 1
1 1
1 2
1 2
1 2
2 2
2 2
2 2
1 2
1 2
1 2
2 1
1 2
1 2
2 2
1 2
2 1
1 1
1 2
2 1
1 2
1 1
2 2
1 2
2 1
1 1
2 2
1 2
1 2
2 2
2 2
2 2
2 2
1 1
1 2
2 2
1 1
1 1
2 2
2 1
2 2
1 2
2 2
2 1
2 2
1 2
2 2
2 1
1 2
2 2
1 2
1 1
2 1
1 2
1 1
1 2
1 2
1 1
1 1
1 2
2 1
2 2
1 1
2 2
1 2
1 1
1 1
1 1
2 1
2 1
1 1
1 2
1 1
1 1
2 1
2 1
1 1
1 2
2 2
1 1
1 2
2 2
2 1
1 2
1 2
1 1
2 2
2 2
1 1
2 1
2 1
1 2
2 2
1 1
2 2
1 2
2 1
1 1
2 1
2 2
1 1
1 1
2 1
1 2
1 1
2 1
1 2
1 2
1 2
1 1
2 2
2 2
1 1
2 1
1 2
2 2
1 2
2 2
1 2
2 2
2 1
2 2
2 1
1 1
1 1
2 1
1 1
1 1
1 1
1 2
2 2
1 2
2 1
1 1
2 2
1 2
1 1
1 1
1 1
2 1
2 1
1 2
1 1
1 2
2 2
1 2
1 2
1 1
2 1
1 1
2 1
1 2
2 1
2 2
1 2
1 2
1 2
1 2
1 1
1 2
1 1
1 1
1 2
1 1
1 1
2 1
2 2
1 2
1 2
1 1
1 2
2 1
2 1
1 2
2 1
2 1
2 1
1 1
1 2
2 1
1 1
1 1
2 1
1 2
2 1
1 2
2 2
1 1
1 2
1 2
1 1
2 1
2 2
2 2
2 1
2 1
1 2
1 2
1 1
1 1
1 2
1 2
1 2
1 2
2 1
2 1
1 1
1 2
1 2
2 2
2 1
1 2
2 1
1 1
1 1
2 2
1 2
1 1
2 1
1 2
1 1
1 1
2 2
1 2
2 1
2 1
1 1
1 2
2 2
2 2
2 2
1 1
1 2
1 2
1 2
1 1
2 2
1 1
1 1
1 2
1 1
2 2
2 2
1 1
1 2
2 2
2 1
1 2
2 2
1 2
1 1
1 2
2 1
1 2
2 1
2 2
1 2
2 1
2 2
1 2
2 1
1 1
1 1
1 1
2 1
2 1
2 1
2 1
1 1
1 1
1 2
2 2
1 1
2 1
2 1
2 1
2 1
1 1
1 1
1 1
2 1
1 1
1 2
2 2
1 1
1 1
2 1
2 2
2 1
2 1
2 1
2 2
1 2
2 1
2 2
1 2
2 1
1 1
1 1
2 1
2 2
2 1
1 2
1 2
1 1
1 1
1 2
2 2
2 2
2 2
1 2
2 1
1 1
2 1
2 2
1 2
2 2
2 1
2 1
1 2
1 1
1 1
1 2
2 2
2 2
2 2
2 1
2 2
1 2
1 1
1 2
2 2
1 1
1 1
2 1
1 2
1 1
2 2
1 1
2 2
2 2
1 1
2 1
1 1
1 1
1 1
1 2
1 2
2 2
1 1
2 1
2 2
1 1
1 1
1 2
1 2
2 1
1 2
2 1
1 1
2 2
1 2
2 2
1 2
2 1
1 1
2 2
2 1
1 1
1 1
2 1
1 1
1 1
1 1
1 2
1 1
1 1
2 2
2 1
1 2
2 1
2 2
1 2
2 2
1 1
2 1
2 1
1 1
2 2
1 2
1 2
2 2
2 1
2 1
1 2
1 2
1 1
2 1
1 2
2 2
1 1
1 1
2 1
2 2
2 2
2 2
2 2
1 2
1 1
1 1
1 1
2 1
1 2
2 2
2 1
1 2
2 1
1 1
2 1
1 1
1 1
2 1
1 2
1 2
1 1
1 2
2 2
1 1
2 1
1 1
2 2
2 1
1 2
2 1
1 2
1 2
2 2
1 2
2 2
1 2
2 2
2 2
2 2
1 1
2 2
2 1
2 1
2 2
1 2
2 1
1 2
1 2
2 1
2 1
2 1
1 1
2 2
2 1
1 1
2 2
2 2
2 1
2 2
2 1
1 2
1 2
2 1
2 1
1 1
2 2
2 2
2 2
2 2
1 2
1 2
2 1
1 1
1 2
2 1
1 1
2 1
1 2
2 1
1 1
1 1
2 1
2 1
2 2
2 2
2 2
2 1
2 1
2 1
1 1
2 1
1 2
2 2
2 2
2 2
1 1
1 2
1 1
1 2
1 1
1 2
2 1
1 1
1 2
2 2
2 1
1 1
1 2
2 2
2 2
2 2
2 2
2 2
2 2
2 2
2 2
2 1
1 2
2 1
1 2
1 1
1 1
2 2
1 1
2 1
2 1
1 1
2 1
2 2
2 2
2 1
2 2
2 1
1 1
2 1
2 1
2 2
1 2
1 2
2 2
1 2
2 2
1 1
2 2
2 1
1 2
1 1
1 2
2 2
2 2
1 1
2 1
2 2
2 2
1 2
1 2
2 2
1 2
2 1
1 2
2 2
2 2
1 2
2 1
1 1
2 1
2 2
1 1
2 2
1 1
2 2
1 1
2 2
2 1
1 2
1 1
2 1
1 2
2 2
2 1
1 2
1 1
1 1
1 2
1 2
2 1
2 1
2 1
1 1
2 1
1 1
2 2
1 1
2 1
1 2
2 1
1 1
2 1
1 1
2 1
1 1
2 1
2 2
1 2
2 2
1 2
1 2
1 2
2 1
1 2
2 1
2 2
1 1
1 1
2 1
1 2
2 2
1 2
2 2
2 2
1 1
1 1
2 1
1 2
1 1
2 2
2 2
2 1
1 1
2 1
2 1
1 2
2 1
2 1
2 2
2 1
1 1
1 2
2 1
1 1
1 1
2 1
1 1
2 1
2 2
1 1
1 2
2 1
2 1
1 1
1 2
2 2
1 2
2 1
1 2
2 1
2 1
2 2
1 2
1 2
1 1
2 1
2 2
2 2
2 1
2 1
2 1
1 2
2 2
1 2
1 2
1 1
1 1
2 2
1 2
2 2
2 2
2 2
2 1
1 2
1 1
2 2
1 1
1 2
1 2
1 2
2 2
2 2
2 2
2 1
2 2
1 2
1 1
2 1
1 1
1 2
2 2
2 1
1 2
2 1
1 1
2 2
2 2
1 2
1 1
2 1
2 2
2 1
2 1
2 2
2 2
1 1
1 1
1 2
1 1
1 2
2 2
2 1
2 2
1 1
2 1
1 2
2 2
1 1
2 2
1 2
1 1
1 1
1 1
1 2
2 2
2 2
1 2
1 1
2 2
1 2
1 1
2 1
2 2
1 2
1 1
1 2
1 2
1 1
2 1
2 1
1 2
1 1
1 1
2 1
2 1
1 1
2 1
1 2
1 2
1 2
2 2
1 1
2 2
1 2
2 2
1 2
1 2
2 2
2 2
2 1
2 1
1 2
1 2
2 1
2 2
1 2
1 2
2 1
2 1
2 2
1 1
1 2
2 2
2 2
1 1
1 2
2 1
1 1
2 1
1 1
1 2
1 2
1 1
1 1
2 2
2 1
2 2
2 2
2 1
2 2
2 2
1 1
2 2
1 2
2 1
2 1
1 2
1 2
2 1
1 2
1 1
2 1
2 1
2 2
2 1
2 2
1 2
1 2
2 2
2 1
2 2
2 1
2 2
1 1
2 1
2 2
1 2
1 2
2 2
2 2
1 1
1 2
1 1
1 2
2 2
2 1
2 1
2 1
1 1
2 1
1 2
1 2
1 2
2 1
2 1
2 2
1 2
1 1
1 1
2 2
1 1
2 2
2 1
2 1
2 1
1 2
1 1
2 1
2 1
1 1
2 2
2 2
2 2
1 1
1 2
1 1
1 1
1 2
1 1
1 1
2 2
1 1
1 2
1 1
1 2
2 2
1 1
2 2
1 1
2 1
1 2
2 1
2 2
1 1
2 1
2 2
1 1
2 2
1 2
1 2
2 1
1 1
1 1
1 2
2 2
1 2
2 1
2 2
2 2
2 2
1 1
1 2
1 2
2 1
1 1
2 1
2 1
1 1
2 1
2 1
1 1
2 2
1 2
2 2
2 1
2 2
1 1
1 1
2 1
1 2
1 1
1 1
1 2
1 1
2 2
1 2
1 1
2 2
2 1
1 1
1 1
1 2
1 2
2 2
2 2
2 1
2 2
1 1
2 2
1 2
2 1
1 1
1 1
2 1
2 2
2 1
2 1
2 2
2 2
1 2
1 2
2 1
1 1
1 1
2 1
1 1
1 2
2 2
1 1
2 1
1 2
2 1
2 1
1 1
1 2
2 1
1 2
2 2
2 2
2 1
2 2
1 2
1 2
2 2
1 1
2 2
2 2
1 2
1 2
1 2
2 1
2 2
2 2
2 1
1 2
1 1
2 1
2 1
2 1
2 1
1 1
2 2
1 2
1 2
2 1
1 2
2 2
1 1
1 1
1 1
1 2
1 2
2 1
1 1
1 2
1 1
1 1
2 1
2 1
2 1
2 2
1 1
2 2
1 1
2 1
1 1
1 2
1 1
2 2
2 2
1 1
2 1
1 1
2 2
1 2
2 2
2 2
2 1
1 1
1 2
2 1
2 1
2 2
1 1
2 2
2 1
2 2
2 2
1 2
2 2
1 1
1 1
2 1
1 1
1 1
2 1
1 2
1 1
2 1
1 2
1 2
2 1
1 1
2 2
2 2
1 1
1 1
1 1
2 2
2 1
1 2
2 2
2 1
1 2
1 1
1 2
2 2
1 1
2 2
2 1
2 2
2 2
2 1
1 1
2 2
1 2
2 1
1 1
2 1
1 1
1 1
2 1
1 1
2 1
1 1
2 2
2 2
1 2
2 2
2 2
2 1
1 1
2 2
2 1
1 1
2 1
1 2
1 2
2 2
1 1
2 2
2 1
2 2
2 1
1 1
1 2
2 1
2 2
2 1
2 1
2 1
2 1
2 2
1 1
1 1
1 1
2 2
1 2
2 2
1 1
1 2
2 1
1 2
2 1
2 2
2 2
2 1
2 1
1 1
2 1
2 1
1 2
1 2
1 1
1 1
2 2
2 2
1 1
2 1
2 2
1 1
1 1
1 1
2 2
2 2
2 2
1 2
1 1
2 1
2 1
1 2
1 1
1 2
2 2
2 1
1 2
1 1
2 2
1 1
2 2
2 2
2 1
2 2
2 2
1 1
2 2
2 2
1 1
2 2
1 1
1 2
2 2
2 1
1 2
2 2
1 1
2 2
1 2
2 1
1 1
2 2
1 1
2 2
1 1
2 1
1 1
1 1
1 1
2 2
2 1
1 2
1 1
2 2
1 2
1 1
1 2
2 2
2 2
2 1
1 2
1 2
1 2
1 1
1 1
2 1
2 2
2 2
2 2
1 1
1 1
2 1
1 1
2 2
2 1
2 2
1 1
1 2
1 2
1 1
2 2
2 1
1 1
2 1
2 1
2 2
1 2
2 2
1 2
2 1
1 2
1 2
2 1
2 1
1 1
2 2
2 1
2 1
1 1
1 1
2 2
1 2
2 1
1 2
2 2
1 1
1 2
2 2
1 1
1 2
1 2
2 1
2 1
1 1
1 2
2 1
2 1
2 1
1 1
1 2
2 1
1 2
1 2
2 2
1 1
2 2
2 2
1 2
1 1
1 1
2 1
1 2
2 2
1 1
1 1
1 1
1 1
2 2
1 2
2 1
1 2
1 1
1 2
1 1
2 1
2 2
2 2
1 2
1 2
2 2
1 2
2 1
2 2
2 1
1 2
1 1
2 1
2 2
2 1
1 2
1 1
2 2
1 2
1 2
2 2
2 1
2 2
2 1
2 2
2 1
1 2
2 1
2 2
1 1
2 2
1 2
2 2
2 2
2 1
2 1
2 1
1 2
2 1
1 2
1 2
1 1
2 1
1 2
2 1
2 1
2 1
2 2
2 1
2 2
1 2
1 2
1 1
2 1
2 1
2 2
2 1
2 1
2 2
2 2
1 1
1 2
2 2
1 2
2 2
1 1
1 2
2 1
2 2
2 2
2 1
1 1
2 1
1 1
2 1
2 1
2 2
2 1
1 1
1 1
1 1
2 1
1 1
1 1
2 1
1 1
1 1
1 2
2 2
2 2
2 2
1 1
1 2
1 1
2 2
1 1
2 2
2 2
1 1
2 2
2 1
1 2
1 2
1 1
2 1
2 2
2 1
1 2
2 2
1 1
2 1
1 1
2 2
1 1
2 1
1 2
1 1
2 2
2 1
2 1
2 1
1 2
2 2
1 1
1 1
1 2
1 2
1 2
1 1
2 1
1 1
2 2
1 1
1 2
2 2
1 2
2 2
1 1
1 2
2 1
2 1
2 1
1 1
2 2
1 2
2 2
1 1
2 2
1 1
2 2
2 1
2 1
1 1
2 2
2 1
1 2
1 1
2 2
1 1
2 1
2 2
1 1
1 2
1 1
1 1
1 2
2 2
2 2
2 2
1 2
1 1
2 2
2 1
2 1
2 2
2 1
2 1
1 1
1 2
1 1
1 1
2 2
1 2
1 1
2 2
2 2
2 1
2 1
2 2
2 1
2 2
1 1
1 1
1 2
1 1
2 2
1 2
2 2
1 1
2 1
1 1
2 2
1 2
1 2
2 1
2 1
2 2
1 2
1 2
1 2
2 1
1 1
1 2
2 1
2 2
1 1
2 2
1 1
1 2
1 2
2 2
2 2
2 1
2 1
2 2
1 2
1 2
1 2
2 2
2 1
1 2
1 2
1 1
1 2
2 2
1 2
2 1
2 2
2 1
2 1
2 2
2 2
2 2
1 2
1 1
2 2
1 2
2 1
1 1
2 1
1 1
1 2
2 1
2 2
1 1
1 2
2 2
1 1
1 1
2 1
2 2
2 1
1 2
2 1
2 2
1 2
2 1
1 1
2 2
1 1
2 1
1 1
1 1
2 1
2 1
1 2
1 1
1 2
1 2
1 1
2 1
2 1
1 2
1 1
2 1
2 2
1 1
1 1
2 1
1 2
2 2
1 2
1 2
1 1
2 1
2 2
1 2
2 2
2 2
1 2
2 1
1 1
2 2
2 1
1 1
1 2
1 2
1 2
2 2
1 1
2 2
1 2
2 2
1 1
1 2
1 2
1 1
1 1
1 2
1 2
1 1
2 1
2 2
2 1
1 1
2 2
2 2
1 2
2 2
2 1
2 1
2 1
1 1
1 1
2 1
2 2
1 1
2 1
2 1
1 2
1 2
1 1
1 1
2 2
1 2
1 1
1 1
2 2
2 2
1 2
2 1
2 1
2 1
2 1
1 2
2 1
1 1
1 2
1 1
1 1
2 1
1 2
2 1
1 1
2 1
2 1
2 1
2 2
2 2
2 2
1 2
1 1
2 2
1 1
2 2
2 1
1 1
1 2
1 2
1 2
1 1
2 2
2 2
1 1
2 1
1 2
1 2
2 2
2 1
1 1
1 2
2 1
1 2
2 2
2 2
1 1
1 2
2 1
1 1
1 2
2 2
2 2
2 2
2 1
1 2
2 1
2 1
1 2
2 2
2 1
1 2
2 1
2 1
1 1
1 1
1 2
1 2
1 2
1 1
1 2
1 1
1 1
1 2
1 2
2 1
2 1
1 2
1 1
1 1
1 1
2 1
1 2
1 1
2 1
1 1
2 1
1 2
1 2
2 1
1 1
2 2
1 2
2 1
1 2
1 1
1 2
1 2
1 1
2 1
2 1
2 1
1 2
2 2
1 2
2 1
2 1
2 1
1 2
1 2
2 2
2 2
1 1
1 2
2 1
2 1
1 1
2 1
1 1
1 1
1 1
1 2
2 2
2 2
2 1
2 1
1 2
1 2
1 2
2 1
1 1
2 1
1 2
2 2
1 1
2 1
2 1
2 1
2 2
1 1
2 2
2 2
2 1
1 2
2 1
1 1
2 1
1 2
1 1
2 2
1 1
1 1
2 1
1 1
1 1
1 1
1 1
1 1
2 2
2 1
1 2
1 2
2 2
1 1
1 2
2 1
1 1
1 2
1 2
1 2
1 2
2 2
2 1
1 2
1 2
1 1
2 1
1 2
1 1
2 1
2 2
2 1
2 1
1 2
2 2
2 2
2 1
1 2
2 1
1 2
2 2
1 1
2 1
1 2
1 1
1 2
2 2
1 1
2 2
2 2
2 1
2 2
2 2
1 1
2 2
2 1
1 2
1 2
1 2
2 2
1 2
1 2
1 1
2 1
1 1
1 2
2 1
2 1
1 2
1 2
1 2
2 2
2 1
2 2
1 1
2 1
1 1
1 1
1 2
2 2
1 2
1 1
2 1
1 1
1 1
1 1
2 1
2 2
2 2
1 2
2 2
1 1
2 1
1 1
1 2
1 2
1 2
1 1
2 2
1 2
2 1
1 1
2 2
2 1
1 1
2 1
1 1
2 2
2 2
2 1
1 1
1 1
2 2
2 2
2 2
2 2
2 2
2 1
2 1
1 2
1 2
1 1
1 1
1 2
1 1
1 2
2 2
2 1
1 1
2 1
2 1
1 2
1 1
1 1
2 1
1 1
1 1
2 2
2 2
1 1
2 2
2 1
2 1
2 1
2 1
2 2
2 1
1 1
2 1
1 2
1 2
1 2
1 2
2 1
1 1
1 1
1 1
2 1
1 1
1 1
1 1
2 2
1 1
1 2
2 2
1 1
2 2
1 2
2 1
2 2
2 1
1 1
2 1
1 1
1 2
2 2
1 1
1 2
2 2
1 2
1 1
1 2
2 1
2 2
1 2
1 1
1 1
2 2
1 1
2 2
1 1
2 2
1 2
1 2
2 1
1 2
2 2
1 1
1 2
2 2
2 2
1 2
1 2
1 1
1 1
1 1
2 1
1 2
2 2
2 1
2 2
2 2
2 1
1 2
2 2
2 1
1 1
2 1
2 1
2 2
2 2
2 1
1 2
1 1
2 1
2 2
2 1
1 2
1 1
2 1
1 2
1 2
1 1
1 2
2 1
1 1
2 1
2 1
1 1
1 1
2 1
1 2
2 1
2 1
2 1
2 2
2 1
2 2
1 1
2 1
1 2
1 2
1 1
1 1
1 1
2 2
1 1
2 1
2 2
2 2
2 1
1 2
1 1
1 1
1 2
2 1
2 1
1 2
2 2
2 2
2 2
1 2
1 2
2 1
2 1
1 2
2 1
1 1
2 1
1 2
1 1
2 2
1 2
2 1
2 2
2 1
1 2
1 1
1 1
1 1
1 2
1 1
2 1
1 1
2 2
2 2
2 1
2 2
2 2
2 1
1 2
1 1
2 1
2 2
2 1
2 1
2 1
1 2
1 1
1 2
1 1
2 1
1 2
2 2
2 2
1 2
1 2
2 2
2 2
2 1
1 2
2 2
1 2
2 2
2 1
1 1
2 2
1 1
1 2
1 2
2 2
2 2
2 2
2 1
2 2
2 1
1 1
2 1
2 1
1 1
1 2
2 2
2 2
1 2
1 2
2 2
1 1
1 1
1 2
2 2
2 2
1 1
1 1
1 1
1 2
2 1
1 1
1 2
2 1
2 1
2 2
2 2
1 1
1 2
1 1
2 1
1 1
2 2
2 1
1 1
2 2
1 2
2 1
2 2
1 2
1 1
2 1
1 1
1 2
1 1
1 1
1 1
2 1
2 1
2 2
1 1
1 2
2 2
2 2
2 1
1 2
1 1
1 2
1 2
1 2
2 1
1 2
2 2
1 2
2 1
1 1
1 1
2 1
2 1
2 1
1 2
1 1
1 2
2 2
1 2
2 1
2 2
2 1
2 1
2 1
2 1
1 2
1 2
2 1
1 1
1 1
1 1
1 1
2 2
2 2
2 1
2 2
2 1
1 1
2 2
1 1
2 2
1 1
2 1
1 1
1 1
1 2
1 2
2 1
1 2
2 2
1 1
2 1
2 2
1 2
2 2
1 1
2 1
2 1
1 1
1 1
1 1
1 2
2 1
1 2
2 2
1 2
2 1
1 1
1 2
2 2
2 2
2 1
2 1
1 2
1 2
2 2
2 2
1 2
1 1
2 2
1 1
2 2
2 2
1 1
2 1
1 2
2 2
1 2
1 2
2 1
1 1
1 1
1 2
1 1
1 1
1 2
1 2
2 1
1 2
1 2
2 2
2 1
1 2
1 2
2 1
2 2
1 2
2 1
1 1
1 2
1 2
1 1
1 1
1 1
1 1
2 2
2 1
1 2
2 2
1 1
1 1
1 1
1 1
1 1
2 2
1 1
1 1
1 2
1 1
2 2
2 2
1 2
1 2
2 1
1 2
2 1
2 2
2 2
2 2
1 1
2 1
1 2
2 2
2 2
2 1
2 2
2 2
2 1
1 1
1 1
1 2
1 2
1 1
2 1
1 1
1 2
1 1
2 1
2 2
1 2
2 1
2 1
2 2
1 1
2 1
2 2
1 1
1 2
2 1
1 1
2 2
2 2
2 1
1 1
1 1
1 2
2 1
1 1
2 1
2 1
2 2
1 2
1 2
1 1
2 2
1 2
1 1
1 1
1 1
2 1
2 1
2 2
1 1
1 2
1 2
2 2
2 1
1 1
1 2
1 1
2 2
1 1
1 1
1 2
2 2
1 1
1 1
1 1
2 2
2 1
1 1
1 2
1 2
1 1
1 2
2 2
1 1
1 2
1 2
1 2
2 1
2 1
2 2
2 2
2 2
2 1
2 2
1 2
2 1
2 1
2 2
2 2
1 1
1 1
1 1
2 1
2 1
1 1
1 2
1 1
1 1
2 2
1 2
1 2
2 1
1 2
1 1
1 1
1 1
2 1
2 2
2 1
1 2
1 2
1 2
2 1
1 2
2 1
1 1
1 1
1 2
2 2
2 2
2 2
1 1
1 1
2 2
2 1
1 1
1 2
1 2
2 1
2 1
2 1
2 2
1 1
2 1
1 1
1 1
1 1
2 1
1 1
1 1
2 2
1 2
2 1
2 1
1 2
1 2
2 2
2 1
1 2
2 1
1 2
2 1
1 1
2 2
2 1
2 2
1 1
1 1
1 2
1 2
2 2
2 2
2 2
1 2
2 1
1 2
1 2
1 1
2 1
2 1
1 1
2 1
2 1
2 1
2 1
1 1
2 1
1 2
1 2
1 2
2 1
1 2
2 1
2 2
1 2
2 1
2 1
1 1
2 1
2 2
1 1
1 2
2 2
1 1
2 2
2 2
2 1
1 1
2 1
1 2
1 1
1 1
2 2
1 2
2 2
1 1
1 2
1 1
2 2
1 2
1 1
2 2
2 2
1 2
1 1
2 2
1 2
1 2
1 2
1 2
2 1
2 1
1 1
1 2
1 2
1 2
1 2
1 2
1 1
2 2
2 2
2 1
1 2
2 2
2 2
1 2
2 2
2 2
1 2
1 2
2 2
1 2
2 1
1 2
1 1
2 1
1 2
2 2
1 1
1 2
2 1
2 1
1 2
2 2
2 2
1 1
2 1
1 2
2 1
2 1
1 2
2 1
2 2
1 2
2 1
1 1
2 2
2 2
2 1
2 1
1 1
2 1
2 2
1 1
1 2
2 1
1 2
1 1
2 2
1 1
2 1
1 1
2 2
1 1
1 2
1 1
1 2
2 2
2 2
1 1
2 1
1 1
2 2
1 1
1 1
2 2
2 1
2 1
1 2
2 2
2 1
2 2
2 1
2 2
1 1
2 1
2 2
2 1
2 1
2 2
1 1
2 1
2 1
1 2
1 2
1 2
1 2
2 1
1 1
1 2
2 2
1 2
1 2
2 2
1 1
1 2
2 2
2 2
2 1
2 2
2 1
1 2
1 2
2 2
2 2
2 1
1 1
2 1
1 2
2 1
2 1
1 2
1 2
1 1
1 1
2 1
2 1
1 2
1 2
1 2
1 1
1 1
2 1
1 1
2 1
1 2
1 2
2 2
1 2
1 2
2 1
1 2
1 2
2 1
2 1
2 2
2 2
2 2
1 2
1 2
1 1
1 1
2 1
2 2
2 1
2 2
1 1
2 2
1 2
1 2
2 1
2 1
2 2
1 2
1 1
1 1
1 2
2 2
1 1
2 2
1 2
1 1
2 2
1 1
1 1
2 1
2 1
2 1
1 1
2 2
2 2
2 2
1 2
1 2
1 2
2 2
2 1
1 1
2 2
1 1
1 1
2 2
2 2
2 2
1 2
1 1
2 2
1 2
1 2
1 2
2 1
2 2
1 2
2 1
1 2
1 1
1 2
1 2
2 1
2 1
1 1
1 1
1 2
2 2
2 1
2 1
2 2
1 2
2 2
1 1
2 1
1 1
2 1
1 1
2 1
2 2
1 1
2 1
2 2
2 2
2 2
1 2
2 2
1 1
2 1
2 1
1 2
2 2
1 2
2 2
2 1
1 1
1 1
2 2
1 2
2 2
1 1
1 2
2 2
2 1
1 2
1 2
2 2
1 2
2 1
1 1
2 2
2 2
2 2
2 1
1 2
1 2
1 1
1 1
1 1
1 2
2 2
2 1
2 2
2 2
1 1
1 2
2 2
1 2
1 2
2 1
1 2
1 1
1 2
1 2
1 2
1 1
1 2
2 1
2 2
2 2
2 1
2 1
2 2
2 1
1 2
1 2
1 2
1 2
1 2
1 1
2 1
2 1
2 2
2 1
1 2
2 1
1 1
1 2
2 2
1 2
2 1
1 2
1 1
1 2
2 1
1 2
1 2
2 1
1 2
2 1
1 2
2 2
2 1
2 2
2 1
2 2
1 1
2 1
1 2
1 2
2 2
1 1
2 1
1 1
2 2
2 2
1 1
1 2
2 1
2 1
2 1
1 2
1 2
2 1
2 2
2 2
1 1
2 1
1 2
2 2
2 1
2 1
1 1
2 1
1 2
2 1
2 1
2 1
1 1
2 2
1 2
1 2
1 1
2 2
1 1
1 2
2 1
2 2
1 1
2 1
2 1
2 1
2 1
1 2
2 1
2 1
2 1
2 1
1 1
2 1
2 1
1 1
2 2
2 2
1 2
2 1
2 2
2 1
1 2
1 2
2 1
1 2
2 2
2 2
1 1
1 2
2 2
2 2
2 1
2 2
1 2
2 2
2 1
1 1
1 2
2 1
1 2
1 2
1 2
2 2
1 1
1 2
1 1
2 2
1 1
1 1
1 1
2 2
2 2
1 2
1 2
1 2
1 2
2 2
1 2
2 1
1 1
2 1
2 2
1 1
1 2
1 2
2 2
1 2
1 1
1 2
1 2
2 1
1 1
1 1
2 2
1 1
2 1
2 1
1 2
1 2
2 2
2 1
1 1
2 2
1 2
2 2
1 2
1 2
2 1
1 1
1 1
2 2
2 1
1 1
1 2
2 1
2 1
1 1
1 2
2 1
2 2
1 1
1 2
2 2
1 2
1 2
2 2
1 2
2 2
2 2
1 2
2 2
2 1
1 2
2 2
1 2
1 2
2 2
2 2
1 1
1 2
1 2
2 1
1 2
2 1
1 1
1 2
2 1
2 2
1 1
2 2
1 2
1 1
1 1
1 1
1 2
2 1
2 1
1 1
2 2
2 2
2 1
2 2
1 1
2 1
2 1
1 2
2 2
2 2
1 1
1 2
1 2
2 1
1 1
2 1
2 2
2 2
2 1
2 1
1 2
2 1
1 2
2 2
2 1
1 1
2 1
1 1
2 2
1 1
1 2
1 2
2 2
2 1
1 2
2 1
2 2
2 1
1 1
2 2
2 1
1 2
2 2
2 1
2 2
2 1
2 2
1 2
1 1
1 2
2 1
2 1
1 2
1 2
2 2
2 1
1 2
1 1
1 2
2 1
1 1
1 1
1 1
2 2
1 1
2 1
2 2
1 2
2 2
2 2
2 1
2 1
2 1
1 2
1 2
2 2
1 1
1 1
2 1
2 1
2 2
1 1
2 2
2 2
1 2
2 1
1 2
2 1
1 1
2 2
2 2
2 2
2 1
1 1
2 1
1 1
2 2
2 1
2 1
2 1
1 2
2 1
2 1
1 1
1 1
1 2
2 2
2 1
1 2
2 2
2 2
1 2
1 2
2 2
2 2
1 2
2 1
2 1
2 1
1 2
1 1
1 1
2 2
2 1
1 2
1 1
2 2
1 1
1 2
2 1
1 2
2 1
2 2
1 1
1 1
1 1
2 2
2 1
1 1
2 2
1 2
1 1
2 1
2 1
1 2
2 1
2 1
2 1
2 1
2 2
2 2
2 1
2 2
1 1
1 1
1 2
2 1
2 2
2 2
2 1
2 2
1 1
2 1
2 2
2 2
1 1
1 2
1 1
1 2
1 2
1 1
2 2
2 1
1 1
1 1
1 1
2 2
1 2
2 2
2 2
2 1
2 2
1 2
2 2
1 2
2 2
2 1
1 1
2 2
2 2
1 2
1 2
2 1
1 1
1 2
1 1
1 2
1 2
2 2
1 2
2 1
1 1
2 2
2 1
1 1
1 2
1 2
1 2
2 2
2 1
1 1
1 2
1 2
2 1
1 1
1 2
2 1
1 2
2 1
1 2
2 1
2 1
1 2
2 2
1 1
1 2
2 1
2 2
1 2
2 2
1 2
1 2
1 2
1 1
1 1
2 1
2 1
1 1
2 1
1 1
1 2
2 2
1 1
2 1
1 1
2 1
1 2
1 1
2 1
2 2
1 2
2 2
1 1
2 1
1 2
1 2
1 1
1 2
1 2
2 2
2 1
1 1
1 1
2 1
2 1
2 2
2 1
1 2
1 1
2 1
2 2
1 2
1 2
2 1
1 1
1 1
2 2
1 1
1 2
1 1
2 1
2 1
2 2
1 2
1 2
1 2
2 2
1 1
2 2
2 2
1 2
1 2
1 2
2 2
2 1
1 2
2 1
1 1
2 1
1 1
1 2
2 1
2 2
1 1
1 2
1 2
2 1
2 1
2 1
2 2
1 1
2 2
2 2
2 2
1 1
2 2
1 1
2 2
1 1
2 1
1 2
2 1
2 2
2 1
2 1
1 1
2 1
1 1
1 2
1 2
1 2
2 2
2 2
1 2
1 2
1 2
1 2
1 1
1 1
2 2
2 1
2 2
2 2
1 1
2 2
1 2
1 1
2 1
1 1
1 2
2 1
1 2
1 2
2 1
1 1
1 2
1 1
2 1
2 2
2 2
2 2
2 1
1 1
2 1
2 2
2 2
2 2
2 1
1 1
1 2
1 1
1 2
1 2
2 1
2 1
1 1
2 2
2 2
2 2
1 1
1 1
1 1
2 1
2 1
1 1
2 1
1 1
2 2
2 2
1 1
2 1
2 2
1 2
2 2
2 2
2 1
1 1
2 2
1 1
2 1
1 2
1 1
1 2
2 1
1 2
1 2
1 2
1 2
2 2
2 1
2 2
1 1
1 1
1 1
2 1
2 1
1 2
2 2
1 1
2 1
1 2
2 2
1 2
2 1
1 2
2 1
2 2
1 2
1 1
1 1
1 1
2 2
1 2
1 1
1 2
2 2
2 2
1 2
2 1
2 2
2 2
2 1
2 2
1 2
1 1
1 1
1 2
2 2
2 2
1 2
2 1
1 2
1 2
1 2
1 2
2 1
1 1
1 2
2 1
2 1
2 1
1 1
2 2
1 1
2 2
1 2
1 1
1 2
1 2
2 1
1 2
2 2
1 1
1 1
1 1
2 2
1 1
1 1
2 2
2 1
2 1
2 1
2 1
1 1
1 2
2 1
2 1
2 1
1 2
1 1
1 2
1 2
1 1
2 2
2 1
2 1
2 2
1 1
1 1
1 2
1 2
1 1
2 2
2 2
1 1
1 2
1 2
1 2
1 2
1 1
2 1
2 1
2 1
1 2
1 2
2 1
1 1
1 2
1 2
1 2
2 1
2 1
1 1
2 1
2 2
1 1
1 1
1 1
2 1
2 2
1 1
1 1
2 2
1 2
1 1
2 2
1 1
2 1
2 2
1 1
2 2
1 2
1 2
1 2
2 1
1 1
2 2
2 1
1 1
1 1
2 2
2 1
1 2
1 2
1 1
2 1
2 2
1 1
1 1
2 1
2 2
2 2
1 2
2 2
1 1
1 2
1 1
2 2
2 1
1 1
2 2
1 1
1 2
1 2
1 2
2 1
1 1
1 1
1 1
2 1
1 1
2 1
1 2
2 1
2 1
2 1
1 2
2 2
2 2
1 2
1 1
1 2
1 2
1 1
2 1
2 2
2 2
1 1
1 2
1 2
2 1
2 1
1 2
1 2
2 1
1 2
1 1
1 1
2 2
2 1
2 2
1 2
1 1
2 1
1 1
2 2
2 2
2 1
2 1
2 1
2 1
2 1
1 1
1 1
1 2
1 2
2 1
2 2
1 2
2 2
2 2
1 2
1 2
1 2
1 1
2 2
1 2
2 1
2 2
2 1
1 1
2 2
1 1
1 1
2 2
2 1
1 1
2 1
2 2
2 2
1 2
1 1
2 2
2 2
1 2
2 2
2 1
2 1
1 2
1 1
1 2
1 1
2 1
2 1
2 2
1 2
1 1
1 1
2 1
1 2
1 2
1 1
2 2
1 1
2 1
2 2
2 2
2 2
1 1
2 1
1 2
2 2
2 2
1 1
2 1
1 1
2 1
2 1
2 2
1 1
2 1
1 2
1 1
2 2
1 1
2 1
2 1
2 1
2 2
2 1
2 2
1 1
2 2
1 1
2 2
1 1
2 1
1 2
2 1
2 1
1 1
1 2
1 1
2 1
2 2
1 1
2 1
1 2
1 2
1 1
1 2
2 2
2 1
1 2
2 2
2 2
2 1
2 2
2 2
2 2
1 2
1 1
1 1
2 2
2 2
2 1
1 2
1 1
1 2
1 2
2 1
1 1
1 1
2 2
1 1
1 1
2 1
1 2
2 2
2 1
2 1
2 1
2 1
1 1
1 1
1 2
2 2
1 1
2 1
1 1
1 1
1 2
1 1
2 2
1 2
1 2
2 1
2 2
2 2
2 2
2 2
1 2
1 1
2 2
1 1
1 2
1 2
1 1
1 2
1 1
2 2
1 1
1 1
2 2
1 1
2 1
2 2
2 1
1 2
2 1
1 1
1 2
2 2
1 1
1 2
2 2
1 2
2 1
1 2
2 2
2 2
2 1
2 2
1 2
2 2
1 2
1 2
1 2
1 1
2 2
2 1
1 2
2 1
2 1
1 1
1 2
2 1
2 2
1 2
1 2
2 1
2 1
1 2
1 2
2 2
2 1
1 1
1 1
2 2
1 1
1 2
1 2
1 1
1 1
1 1
1 2
1 1
1 2
2 1
1 2
2 2
2 2
1 2
2 1
1 2
2 2
1 2
1 2
2 2
1 2
2 2
2 1
2 2
2 1
2 1
2 2
1 1
2 1
2 1
2 1
2 1
2 1
2 1
2 2
1 2
1 2
2 2
1 2
2 1
1 1
2 2
1 1
1 1
1 1
1 1
1 2
1 1
1 2
2 2
1 1
2 1
2 1
1 2
1 1
2 2
2 2
2 1
1 1
2 2
2 2
2 1
2 1
2 1
1 2
1 2
1 1
2 1
1 2
2 2
2 2
1 1
2 2
1 1
1 1
1 1
2 1
1 2
2 1
1 2
1 2
1 1
1 2
2 1
2 1
2 1
1 1
1 2
1 2
2 1
1 2
2 1
1 2
1 2
1 2
2 2
1 2
1 1
2 2
1 1
1 2
2 2
2 2
1 1
1 2
1 2
2 2
2 1
1 1
1 1
1 1
1 2
2 1
2 2
1 1
2 1
1 1
1 1
1 1
1 1
2 1
2 2
2 1
1 1
2 1
2 1
1 2
1 1
2 1
1 2
2 1
2 1
1 2
2 2
2 1
1 2
1 2
1 1
1 1
1 1
1 2
1 1
1 2
1 1
2 2
2 2
2 2
2 2
2 1
2 1
2 1
1 2
1 1
1 2
2 1
2 2
1 2
2 2
1 2
2 2
1 2
1 2
1 1
1 2
2 1
1 2
1 1
2 2
2 2
1 1
1 1
2 1
2 2
1 1
2 2
2 1
2 1
1 1
1 2
1 2
1 1
1 2
2 1
1 1
2 1
2 2
2 2
2 2
2 2
2 2
1 1
1 2
2 2
1 1
2 2
1 1
1 2
1 2
1 1
2 1
1 2
2 1
1 1
1 1
2 1
2 2
1 1
2 1
1 1
1 1
1 1
1 2
2 2
2 1
1 1
1 1
1 1
1 2
1 2
1 2
2 1
1 1
1 2
2 1
2 2
1 2
2 2
1 1
1 1
1 1
1 2
1 2
2 1
1 1
2 1
2 1
2 2
1 1
2 1
1 2
2 2
2 1
1 1
1 1
2 1
1 2
2 1
2 1
2 1
1 2
1 2
2 2
1 1
2 2
1 2
2 2
2 1
1 2
2 2
1 2
1 2
2 2
2 2
1 2
2 1
1 2
1 2
1 2
1 2
1 1
2 1
2 1
2 2
2 2
2 2
2 1
1 2
1 1
1 2
1 1
1 1
2 1
1 2
2 1
1 2
2 1
2 2
2 2
1 2
1 2
1 2
1 2
1 1
2 1
2 1
1 2
2 2
1 2
1 2
1 1
2 2
1 2
1 1
2 1
1 2
1 1
1 2
1 2
1 2
1 2
1 1
1 2
1 1
1 2
2 1
1 2
2 2
2 1
2 2
2 2
2 2
1 1
1 1
2 2
1 2
2 1
2 2
1 1
1 2
1 1
1 1
2 2
1 1
1 1
1 1
1 2
1 1
1 2
1 2
1 2
2 1
1 2
1 2
1 1
2 1
1 1
1 2
1 1
1 2
1 2
1 2
1 2
1 1
1 1
2 1
2 1
1 2
1 1
1 1
2 1
2 2
2 2
1 1
1 2
2 2
1 1
1 2
2 1
2 1
1 2
1 2
1 2
1 2
1 2
2 1
2 1
1 1
1 2
1 2
1 1
2 1
1 1
1 1
2 1
2 1
2 1
1 2
2 1
1 2
2 2
1 1
2 2
1 2
1 1
1 1
1 1
1 2
1 2
2 1
1 2
2 2
2 2
1 1
2 2
1 1
1 2
1 2
2 2
2 2
2 2
2 2
1 2
1 2
1 2
1 2
1 1
2 1
1 2
2 1
1 2
2 1
2 1
1 1
2 2
2 1
1 2
2 1
2 2
2 1
1 2
1 1
1 1
2 2
2 1
1 1
1 1
1 2
1 1
1 1
2 1
2 1
2 2
2 2
2 1
1 2
1 1
1 2
2 1
1 1
2 1
1 2
1 1
1 1
1 2
1 1
1 2
2 2
1 1
1 1
1 1
1 2
2 2
2 2
1 2
2 2
1 2
1 2
1 1
2 1
2 1
2 2
1 1
1 1
1 1
2 1
1 1
2 1
2 1
2 1
2 1
1 2
2 2
1 1
2 2
1 1
2 2
1 1
1 1
2 1
1 1
1 2
1 1
1 1
1 2
1 2
2 1
1 2
1 1
1 2
2 1
2 1
2 1
1 1
2 1
2 2
2 2
2 1
2 2
2 1
1 2
2 1
2 2
1 1
2 2
2 1
2 2
2 2
1 2
2 1
1 1
2 1
2 1
2 2
1 1
1 1
1 2
2 1
1 2
2 2
2 1
1 2
1 2
1 1
2 1
2 1
2 1
2 2
2 2
2 2
2 1
1 1
1 2
1 2
2 1
1 1
2 2
2 1
2 2
2 2
2 2
2 2
1 1
1 2
2 2
2 2
2 1
2 2
1 2
1 2
1 1
2 1
1 2
1 1
2 1
2 2
1 2
2 2
2 2
2 1
1 2
2 2
2 1
1 1
1 2
2 1
2 1
2 2
2 2
2 1
1 1
2 1
1 2
2 2
1 2
2 2
1 2
2 2
1 1
2 2
1 2
1 1
2 1
2 2
1 1
1 2
2 1
2 1
2 2
1 1
2 2
1 1
2 1
2 2
1 2
1 1
1 1
1 2
2 2
2 2
1 1
1 1
2 2
2 2
1 1
2 2
2 2
2 1
1 1
1 2
2 2
2 1
2 2
2 2
2 1
2 1
1 1
2 1
2 2
2 2
2 2
2 2
1 2
1 1
1 1
2 1
1 1
1 2
2 1
2 1
2 2
2 1
1 2
2 2
1 1
1 2
1 1
1 2
2 2
2 2
1 2
2 2
1 1
2 2
2 2
2 1
1 1
2 2
1 2
2 2
1 1
2 1
2 2
1 1
2 2
2 1
1 2
1 1
1 1
2 1
2 1
1 1
2 1
2 2
2 1
2 1
2 1
2 1
2 1
2 2
1 1
2 2
2 2
2 1
1 2
1 2
2 2
1 1
1 1
1 2
2 1
1 2
1 1
2 2
1 1
2 1
2 1
2 2
1 2
2 2
2 1
1 2
2 2
2 1
1 2
2 1
2 2
1 2
2 1
2 2
1 2
2 1
2 2
2 2
1 2
1 1
2 2
1 1
2 2
1 1
1 2
1 1
2 1
1 1
1 1
2 2
1 2
2 1
1 2
1 1
2 2
2 2
1 1
1 1
2 1
2 1
1 1
1 1
1 1
1 1
2 2
1 1
1 1
1 1
1 2
1 2
2 1
2 1
2 1
1 1
1 2
2 2
1 2
1 2
1 1
1 1
2 1
1 2
1 1
2 2
1 2
2 1
2 1
1 1
1 2
1 1
1 2
2 2
2 1
2 1
2 1
1 1
2 1
1 1
1 2
2 1
2 2
1 1
1 2
1 2
2 2
2 2
2 1
2 1
2 2
1 2
2 1
1 1
2 2
2 1
2 1
2 1
2 2
1 1
1 2
2 1
2 1
2 1
2 2
1 2
1 1
2 1
2 1
1 2
1 1
2 2
1 2
1 1
1 2
2 2
2 1
2 1
1 1
2 2
2 2
2 1
2 1
1 1
1 2
1 2
1 2
2 2
2 2
2 2
2 2
2 1
1 1
2 1
2 1
1 2
1 2
2 1
2 2
1 2
2 1
1 2
2 2
1 2
1 2
2 2
1 1
1 1
2 1
2 2
1 2
2 1
2 2
1 2
1 2
1 1
2 1
1 1
1 1
1 2
2 2
1 2
2 2
2 2
1 2
1 1
1 1
2 2
1 1
1 1
2 1
1 2
1 2
2 2
2 2
1 2
2 2
1 1
2 2
1 2
1 2
2 2
2 1
2 1
2 2
1 2
2 2
2 1
2 1
1 2
1 2
2 2
1 1
1 2
1 2
1 1
2 2
1 2
2 2
1 2
1 2
2 1
1 2
2 1
2 2
2 1
2 1
1 2
1 1
1 2
2 2
2 1
1 2
2 1
1 1
1 1
2 2
1 2
1 2
1 1
2 2
1 1
2 2
2 1
2 1
2 1
1 1
2 1
1 2
2 1
2 2
2 2
2 2
2 2
1 1
2 1
1 2
1 2
1 2
2 1
1 1
1 1
2 1
2 1
1 2
2 2
2 2
1 1
2 1
2 1
1 1
1 2
2 1
1 2
2 1
2 1
1 1
1 1
2 1
1 2
1 2
1 2
1 2
2 1
2 2
2 2
2 1
2 1
2 1
1 2
2 1
1 1
1 1
1 1
1 1
1 2
2 2
1 2
1 1
2 2
1 2
1 1
2 1
2 1
1 1
1 1
1 1
1 2
2 1
2 2
1 1
1 1
2 1
1 1
1 1
1 1
1 2
1 2
2 1
2 2
1 1
2 2
1 2
1 1
1 1
1 1
2 2
1 1
2 1
2 1
2 1
1 2
2 1
1 2
2 1
1 2
2 2
2 1
2 1
1 1
1 1
1 1
2 2
2 1
1 2
1 1
2 1
2 2
1 2
1 1
2 2
1 1
1 1
1 2
1 2
1 2
1 1
2 1
1 1
2 1
1 2
1 1
1 1
2 2
2 2
1 2
2 2
1 1
2 1
1 1
1 2
2 1
1 1
1 2
1 2
2 1
1 1
2 1
2 2
2 2
2 1
1 1
2 2
2 2
2 1
2 2
1 1
2 2
1 2
1 1
1 1
2 1
1 1
1 1
2 1
2 1
1 2
1 1
2 1
1 2
1 1
1 2
1 1
1 1
1 1
2 2
1 2
2 2
1 2
1 2
1 2
2 2
1 2
2 1
2 1
1 2
2 1
1 1
1 2
1 2
1 1
1 2
1 1
1 1
2 2
2 1
1 1
1 1
2 1
1 2
2 1
2 1
2 1
2 2
1 2
1 2
2 2
1 1
2 1
2 2
2 2
2 2
2 1
2 1
2 2
2 2
2 1
1 1
1 2
2 1
1 1
2 1
2 2
2 1
1 1
2 2
2 2
2 1
1 2
1 1
2 1
2 1
1 1
1 2
2 1
2 2
1 1
2 2
1 2
1 2
1 2
2 1
2 2
1 2
1 2
2 2
1 1
2 1
2 2
1 1
2 2
2 2
1 1
2 1
2 1
2 2
1 1
1 1
1 1
2 1
2 1
2 1
2 2
1 1
1 1
2 2
1 2
1 1
2 1
1 2
1 1
2 1
1 2
2 2
1 2
2 1
1 1
1 2
1 2
1 2
1 2
1 2
2 1
2 2
2 2
1 1
2 1
2 1
2 2
2 1
2 1
2 1
1 2
2 2
1 2
1 2
2 1
1 1
1 1
2 1
1 2
2 1
1 1
2 1
2 1
1 2
2 2
1 1
1 1
1 2
2 1
1 1
2 1
1 2
2 2
2 1
1 2
2 1
2 1
1 2
1 1
1 2
1 2
2 1
2 1
2 1
1 1
2 2
2 2
1 2
2 1
1 1
2 2
2 2
2 2
1 1
1 2
1 2
1 2
1 2
1 2
2 1
1 1
2 1
2 1
1 1
1 2
1 2
2 2
1 1
1 2
1 2
1 1
1 2
1 2
2 2
2 1
1 2
2 2
2 1
2 2
2 1
2 2
2 2
1 1
2 2
2 2
1 2
2 2
2 2
1 1
2 2
2 2
2 2
1 1
1 2
2 2
1 2
2 1
2 1
2 2
1 1
1 2
1 1
2 1
2 1
1 1
2 2
1 2
1 2
2 1
1 2
2 2
2 2
1 1
2 1
1 2
1 2
2 2
1 1
1 1
2 2
2 2
2 1
1 2
1 1
2 2
2 2
1 2
1 2
1 2
1 1
2 1
2 2
2 1
2 2
2 1
1 1
2 2
1 2
1 2
2 1
2 1
2 2
1 1
1 1
2 1
1 1
2 1
1 2
2 2
1 2
1 2
2 1
1 1
2 2
2 2
1 1
2 1
2 1
1 1
1 2
2 1
2 2
2 2
1 1
2 2
2 1
2 1
2 2
2 1
1 2
2 2
1 1
2 1
2 2
2 1
2 1
2 1
2 2
2 1
1 2
1 2
1 1
1 1
1 2
1 2
2 2
2 2
2 1
2 2
2 1
1 1
1 2
1 1
2 2
2 2
1 1
1 1
2 2
1 1
2 1
1 2
2 2
1 1
1 1
1 1
1 2
2 1
1 1
1 2
1 1
1 1
1 1
1 2
1 1
2 1
1 1
1 1
2 1
2 2
1 2
2 1
2 2
1 2
2 2
2 1
2 2
2 2
2 2
2 1
2 2
2 2
1 1
1 1
2 1
1 2
2 1
1 1
1 2
2 1
2 2
2 1
2 2
2 2
1 1
1 1
2 1
2 1
1 1
1 1
2 2
1 1
2 1
2 2
1 1
1 2
1 2
2 2
2 2
1 1
1 2
2 1
2 2
1 2
2 2
2 1
2 2
1 2
1 1
1 2
1 1
1 1
1 2
2 1
1 2
2 2
2 2
2 2
2 2
2 1
1 2
2 1
1 2
2 1
1 2
2 2
2 2
2 2
1 1
2 2
2 1
1 2
1 1
1 2
1 2
2 1
2 2
1 2
1 1
1 2
2 2
2 2
2 1
2 1
2 1
1 1
2 1
2 1
2 2
2 1
2 2
1 1
1 2
1 1
2 1
2 2
2 2
1 1
1 1
2 2
2 2
2 1
2 2
1 1
2 1
1 1
2 1
2 1
2 1
1 2
1 1
2 2
1 1
1 2
1 1
1 1
1 2
2 2
1 1
1 2
1 2
2 1
2 2
1 1
2 1
1 2
2 2
2 2
1 1
1 2
1 1
1 2
2 1
2 2
1 2
1 1
2 1
1 2
1 2
1 1
1 2
2 1
2 2
2 2
2 2
1 1
1 1
2 2
2 2
1 1
2 2
1 1
1 1
1 1
1 1
2 1
1 2
2 2
1 2
1 2
2 2
1 2
2 2
2 2
1 2
2 2
2 1
1 2
2 1
1 2
1 1
2 2
1 2
2 1
2 1
1 1
1 2
1 2
2 1
1 2
2 1
2 2
2 2
2 1
1 2
1 2
1 1
1 2
1 2
1 1
2 2
1 1
2 1
2 2
2 2
2 1
2 2
1 2
1 2
1 2
1 2
2 2
1 2
1 2
1 1
1 1
1 2
2 2
1 2
1 2
1 1
2 2
1 2
2 1
2 1
2 1
2 2
2 1
1 1
1 1
1 2
2 2
2 1
1 1
1 1
2 2
2 2
1 2
2 2
2 1
1 1
1 1
1 1
2 1
1 2
1 2
1 1
1 2
1 1
2 2
2 1
1 2
2 2
1 2
1 1
2 2
1 1
2 2
2 1
1 2
1 2
2 2
2 1
2 1
1 2
1 1
1 2
2 1
2 2
1 2
1 2
2 2
1 1
2 1
1 2
1 1
1 2
2 1
2 1
2 1
1 2
2 1
1 2
1 2
1 2
2 2
1 1
1 1
2 1
2 1
2 1
2 1
1 1
1 2
2 1
2 2
1 2
2 1
1 1
1 1
1 2
2 1
1 2
2 2
2 1
1 1
1 2
1 1
2 2
1 1
1 1
1 2
1 2
2 2
2 2
2 1
1 2
2 2
1 2
2 1
2 1
1 2
2 1
1 1
2 1
1 1
1 1
1 2
1 1
1 1
2 2
1 2
2 1
1 1
2 2
2 2
2 2
1 1
2 1
2 2
2 2
2 2
1 1
2 1
1 2
1 1
1 2
1 1
2 2
1 1
1 1
2 2
2 2
2 2
2 1
1 1
2 1
1 2
1 2
1 2
2 1
2 1
1 2
1 1
1 1
2 1
1 1
2 1
1 1
2 2
2 2
1 1
1 1
2 1
2 1
2 1
1 1
1 1
2 1
2 1
2 1
1 2
2 2
2 2
1 1
2 1
2 2
2 1
1 1
2 2
2 2
2 2
1 1
2 2
2 2
2 2
2 1
2 1
1 1
1 2
1 2
2 1
1 2
1 1
2 2
1 2
1 1
1 1
1 1
1 1
2 2
1 1
1 1
2 1
2 2
2 1
1 2
2 2
1 2
2 1
1 1
2 2
1 1
1 2
1 1
1 2
2 1
1 2
1 1
1 2
2 1
1 1
1 1
2 2
2 1
2 1
2 2
1 1
2 1
1 2
2 2
2 1
1 2
2 1
1 1
2 1
1 1
1 2
1 1
2 2
2 2
2 1
2 1
2 2
1 2
1 2
1 2
1 2
2 1
2 2
1 2
1 2
1 1
2 2
1 2
1 2
1 2
2 2
2 2
2 1
2 2
1 2
1 2
2 2
2 2
1 1
2 2
2 2
1 1
1 2
2 1
1 2
1 2
1 2
1 1
2 2
2 1
1 2
1 2
2 1
2 2
2 2
1 1
2 2
1 1
1 1
1 1
2 2
2 2
1 2
2 1
2 1
2 2
2 1
2 1
2 1
1 1
2 1
1 1
2 2
1 1
1 1
2 1
2 2
2 2
1 1
2 2
1 2
2 2
2 2
1 1
1 2
1 2
2 2
2 2
1 1
2 2
1 1
1 1
2 1
2 1
2 1
2 2
1 1
1 2
2 2
1 2
2 1
1 1
2 2
2 2
2 1
1 1
2 1
1 2
1 1
2 2
2 1
1 1
2 1
2 2
1 1
2 1
2 1
2 1
1 2
1 1
1 1
2 2
1 1
2 1
2 2
1 1
2 1
1 2
2 2
1 2
2 1
2 2
1 1
2 1
2 2
2 1
1 2
2 2
2 1
1 1
1 1
1 2
1 1
2 2
2 1
1 2
2 1
1 2
2 1
1 1
2 2
1 2
2 1
2 1
1 2
2 1
2 2
1 1
2 1
2 1
1 1
1 2
2 2
2 2
1 2
1 2
2 2
1 2
1 1
2 2
1 2
1 2
2 1
1 2
1 2
1 2
1 1
2 1
1 2
2 1
2 2
1 2
2 2
1 2
1 1
2 1
2 1
2 1
1 2
1 2
1 2
1 1
2 1
2 2
2 2
1 1
1 1
1 1
2 1
2 1
1 1
2 1
1 1
2 1
1 1
1 2
1 2
1 2
1 1
1 2
2 2
1 2
2 1
2 1
1 1
2 1
2 2
1 1
2 2
2 1
1 1
1 2
1 2
1 2
2 1
2 1
2 1
1 2
2 2
2 1
1 1
1 2
1 2
1 1
1 2
2 1
2 2
1 1
1 2
2 1
1 1
1 2
2 1
2 1
2 2
2 1
1 2
2 1
2 1
2 2
1 1
1 2
1 2
2 2
1 1
2 2
1 2
2 1
1 2
2 2
1 2
2 2
1 2
1 1
2 2
2 1
1 1
1 1
1 2
2 2
2 2
1 2
1 1
1 2
1 1
1 1
2 2
2 1
1 1
2 1
1 1
1 1
2 1
2 1
1 2
2 1
1 2
1 2
2 1
2 2
1 2
2 2
2 1
1 2
2 1
2 1
1 1
1 2
2 2
1 2
2 2
2 2
1 2
1 1
1 2
1 2
1 2
2 1
2 2
2 2
1 1
2 2
1 1
1 1
1 1
2 1
1 1
1 1
1 1
1 2
1 1
2 2
2 1
1 1
2 1
1 1
1 1
2 2
1 1
1 1
1 2
2 1
2 1
1 1
1 2
1 2
2 1
1 2
2 2
1 2
1 2
1 2
2 1
2 1
2 1
2 1
1 2
2 2
2 2
2 2
1 1
1 2
1 2
2 1
2 1
1 2
1 2
2 1
2 1
1 2
2 1
1 2
1 2
1 1
2 1
2 2
2 2
2 1
1 1
1 2
1 2
2 2
1 2
1 2
1 2
2 1
1 2
2 1
2 2
2 1
1 1
2 2
2 2
2 1
1 1
1 2
1 2
2 2
1 1
2 1
2 2
2 2
2 2
2 1
1 1
1 1
2 2
1 2
2 2
2 1
2 1
2 1
2 1
2 1
2 2
1 2
2 1
1 2
2 2
1 2
2 1
2 2
2 1
1 1
1 2
1 1
1 2
1 2
1 2
1 1
1 2
1 2
1 1
1 1
1 1
2 2
2 1
1 1
1 2
2 1
2 1
2 1
2 1
1 1
1 2
1 2
2 1
1 2
1 1
1 1
1 2
2 2
1 2
2 2
2 1
2 1
1 2
2 2
1 2
2 1
2 2
2 1
2 1
2 2
2 1
1 2
2 1
2 1
1 1
1 2
1 2
1 2
2 2
1 2
2 1
1 2
1 1
2 1
2 2
2 1
1 2
2 2
2 2
2 2
2 1
1 2
1 1
1 2
2 1
1 1
2 2
1 2
2 2
1 1
2 1
2 1
1 2
1 1
2 1
1 2
2 1
2 2
2 2
1 2
1 1
2 1
2 1
2 2
1 1
2 2
2 2
2 2
2 1
2 1
1 1
2 2
2 2
1 2
1 1
1 1
2 2
2 2
1 1
1 2
1 1
1 1
1 2
1 2
2 2
1 1
1 1
2 2
2 2
1 1
2 2
2 1
2 1
1 1
2 1
1 2
2 2
1 1
1 2
2 1
2 1
1 2
1 1
2 2
1 1
1 2
1 1
2 1
2 1
2 1
2 2
2 1
2 1
1 1
1 2
2 1
1 1
1 2
1 2
2 1
1 2
1 2
2 1
2 2
2 1
1 1
1 1
1 2
1 2
1 2
2 2
2 2
1 2
2 2
1 1
2 2
1 1
2 1
1 2
2 1
1 2
1 1
1 1
1 2
2 2
1 1
1 2
2 1
2 2
2 1
2 1
2 2
2 1
2 2
1 2
1 1
2 1
2 2
1 2
1 2
1 2
2 1
2 1
2 1
1 1
1 1
2 2
2 1
1 2
1 2
1 2
2 2
2 1
1 2
2 1
1 2
2 2
1 2
1 2
2 1
1 2
2 2
1 1
2 2
2 1
2 2
2 2
1 2
2 2
1 2
2 1
2 2
1 1
1 2
1 2
2 1
1 2
2 2
1 2
2 1
1 1
1 2
1 2
1 1
1 2
2 2
2 1
1 1
2 1
2 2
2 2
1 2
2 2
1 1
2 2
1 1
1 1
2 1
2 2
2 1
2 2
1 2
2 1
1 2
2 1
2 1
1 1
1 2
1 2
1 2
2 1
1 2
1 1
1 2
1 1
2 2
1 1
2 1
2 2
1 1
1 2
1 1
2 2
1 2
1 2
1 1
2 2
2 2
2 1
2 2
2 1
1 2
2 1
2 1
1 1
2 1
2 1
2 1
2 1
1 1
1 1
1 1
1 2
1 1
2 2
1 2
1 1
2 2
2 2
1 1
1 2
1 1
1 2
2 1
2 1
2 1
1 1
2 1
2 2
2 1
2 1
1 2
1 2
1 1
2 2
2 1
1 2
2 2
1 2
1 1
1 2
1 2
1 2
1 2
2 2
1 2
2 1
2 1
1 2
1 2
1 2
2 2
1 1
1 1
1 2
2 2
2 1
1 1
1 1
1 1
1 2
2 1
1 2
1 1
1 1
1 2
1 1
2 2
1 2
2 1
2 2
2 2
1 2
1 1
2 1
1 2
1 2
1 1
1 2
2 2
2 1
2 2
1 2
1 2
1 2
2 2
1 1
1 1
2 2
2 2
1 2
1 2
2 1
1 1
2 2
2 1
2 1
1 1
1 1
1 2
1 1
1 1
2 1
1 2
1 2
1 1
2 2
2 2
1 1
2 2
2 2
2 2
2 2
2 1
2 1
2 1
2 1
1 1
1 2
1 1
1 2
1 1
2 2
1 1
2 2
1 1
1 1
1 2
2 2
1 2
1 1
1 1
1 1
1 2
2 1
2 1
1 2
1 2
1 1
2 2
2 1
2 2
1 2
1 2
1 1
1 2
1 2
1 2
2 1
1 2
2 1
2 2
1 1
1 1
1 1
2 2
2 1
2 2
1 1
1 2
1 2
2 2
1 2
1 1
2 1
1 1
1 1
1 1
1 2
1 2
2 2
1 1
2 2
1 1
1 2
1 1
1 2
1 2
2 1
2 1
2 2
1 2
1 2
2 1
2 2
1 2
1 1
2 1
1 2
1 1
1 1
1 2
1 1
1 1
1 2
2 2
2 2
2 1
2 1
1 2
1 2
1 1
1 1
2 1
2 1
1 1
1 1
2 1
1 2
2 1
1 2
2 1
2 1
1 2
1 2
2 2
2 2
2 1
1 1
1 2
1 1
1 1
2 1
2 1
1 1
2 2
1 2
1 1
1 1
2 2
2 2
1 1
1 1
2 1
1 2
2 2
2 1
1 1
2 1
2 2
2 1
2 2
2 2
1 1
2 1
2 1
1 2
1 2
1 2
1 1
2 1
2 1
2 1
1 1
1 1
1 1
2 1
2 2
1 2
1 1
1 2
2 1
1 2
1 2
1 2
1 1
1 2
2 2
1 2
1 2
1 2
1 2
1 1
1 2
1 2
1 1
2 1
2 1
1 2
1 2
1 2
1 1
1 2
2 1
2 1
2 1
1 1
2 2
2 1
2 2
2 1
1 2
2 1
2 1
2 2
2 2
1 2
1 2
1 2
1 2
1 2
1 2
2 2
1 1
1 1
1 2
1 2
1 2
2 1
1 2
2 1
2 2
2 1
2 2
2 1
2 2
1 1
2 1
2 2
2 2
2 1
2 1
1 2
1 2
1 1
1 1
1 2
1 2
1 1
2 1
2 2
2 2
2 2
1 2
1 2
2 1
2 2
1 2
1 1
2 1
1 2
2 1
2 1
1 1
1 2
1 2
1 1
2 1
1 1
1 1
2 1
1 2
1 1
1 2
2 1
2 1
1 1
1 2
1 1
1 1
2 1
1 2
1 2
1 1
1 1
1 1
1 2
2 1
1 1
2 1
1 1
2 1
1 1
2 1
2 2
2 1
2 1
1 1
1 2
1 1
1 1
2 1
1 1
1 2
1 2
1 2
1 1
1 2
1 2
1 1
2 1
2 1
1 1
2 1
1 1
2 2
1 1
2 2
1 2
2 2
2 1
1 1
2 2
1 1
1 2
1 1
1 2
1 2
2 1
2 1
1 1
1 1
1 2
1 1
2 2
2 2
2 2
1 1
1 1
2 1
2 1
1 2
1 1
1 2
1 2
2 2
1 2
2 1
2 2
1 1
1 1
2 2
2 2
2 2
2 1
1 1
2 1
1 2
2 1
2 1
2 1
2 1
2 1
1 2
1 1
2 2
1 2
1 2
1 2
1 1
1 2
2 2
2 2
2 1
1 2
1 1
2 1
1 2
1 1
1 2
2 1
1 2
1 1
2 1
1 1
1 2
1 1
2 1
1 2
1 2
2 1
1 1
2 1
1 1
2 2
2 2
2 1
1 1
1 1
1 2
2 1
1 2
1 1
1 1
1 2
2 2
2 1
1 1
1 2
2 2
2 2
2 2
1 1
1 1
2 1
1 1
2 1
2 1
1 2
1 2
2 1
2 2
1 1
1 1
2 2
1 2
1 2
1 2
1 2
2 1
2 2
1 2
1 2
1 1
1 2
1 2
1 1
2 1
2 2
1 1
2 1
1 2
1 2
2 1
2 2
2 2
1 2
1 2
2 2
2 2
2 2
2 1
1 1
1 1
2 2
2 2
1 2
1 2
2 2
1 1
1 1
2 2
2 2
1 1
1 2
2 1
1 1
1 1
1 1
1 2
1 1
2 1
1 2
1 2
2 2
1 2
1 2
2 2
1 1
1 1
2 2
1 1
2 2
2 2
1 1
1 1
2 2
2 2
2 1
1 1
2 1
1 2
1 1
1 1
1 1
1 1
1 2
2 1
1 1
1 1
1 1
2 2
1 2
2 1
2 1
1 2
1 2
1 2
1 2
1 1
2 2
1 1
2 2
2 2
1 1
2 2
1 1
1 1
2 1
1 1
1 1
2 2
1 1
1 2
1 2
1 1
2 1
1 2
2 2
2 1
2 2
2 1
1 1
2 1
2 1
2 1
2 1
1 2
1 2
1 2
2 1
1 2
1 1
1 1
1 2
1 1
2 2
1 2
1 1
2 1
2 2
1 2
2 1
2 2
2 2
1 1
1 1
2 2
1 2
1 1
2 1
2 2
1 1
2 1
1 2
1 2
2 2
2 2
2 1
2 1
2 1
1 2
2 1
2 1
2 2
2 1
1 2
2 1
2 1
2 2
2 1
2 2
1 2
1 2
1 2
2 2
1 2
1 2
2 2
1 1
1 2
2 2
2 2
2 1
1 2
1 2
1 2
2 1
2 2
1 1
2 2
2 1
2 2
1 2
2 1
2 2
2 1
1 2
2 2
1 1
2 2
1 2
1 2
1 2
1 2
2 2
2 1
2 2
1 1
2 2
2 2
2 2
1 2
2 1
1 2
2 1
1 2
1 2
1 1
1 1
2 2
2 2
1 1
2 2
1 2
2 2
1 2
1 2
2 2
1 1
1 1
2 1
1 1
2 1
1 1
1 1
1 1
1 2
2 1
1 1
1 2
2 1
1 2
2 2
1 1
1 1
2 2
1 2
1 1
2 1
1 1
1 1
2 2
1 1
2 1
2 1
1 1
2 1
2 1
1 2
2 1
2 2
1 2
1 1
1 1
2 1
2 1
1 2
2 1
2 1
1 1
2 1
2 1
1 2
2 1
1 1
2 1
1 1
1 2
2 1
2 1
1 2
2 1
2 2
1 2
1 1
2 2
2 2
2 2
1 2
1 1
1 2
1 1
2 2
1 2
1 2
1 2
2 1
1 2
1 2
1 2
2 1
1 2
1 2
2 1
1 1
2 2
2 1
1 2
2 1
1 2
2 2
1 1
1 2
2 1
2 2
2 2
1 1
2 2
2 1
1 1
1 2
2 2
2 1
1 1
1 1
1 2
1 2
1 1
2 1
1 2
1 2
2 1
1 1
2 1
1 2
1 1
1 1
1 2
1 1
2 1
1 1
2 2
1 1
2 1
2 1
2 2
1 2
1 1
2 2
1 2
2 1
2 1
2 2
1 2
2 2
1 1
2 2
2 1
1 2
2 2
2 1
1 2
2 2
2 1
1 2
2 1
2 2
1 1
2 2
1 2
1 1
1 1
1 2
2 2
2 1
2 1
1 2
1 2
1 1
2 1
2 1
1 2
2 2
2 1
1 1
2 1
1 1
1 1
1 2
2 1
1 2
1 1
2 1
1 2
2 1
1 2
2 2
2 2
1 2
1 2
1 1
1 2
2 1
1 2
2 2
1 1
1 2
1 1
1 1
2 1
1 1
1 1
1 2
2 2
1 2
2 1
2 2
2 1
1 2
1 1
2 2
1 1
2 1
2 2
2 1
2 1
1 2
1 2
1 2
2 1
2 2
2 2
2 1
1 2
2 2
1 1
1 1
2 1
2 1
2 2
1 2
1 2
2 1
2 1
1 2
1 2
1 2
1 1
2 2
1 2
1 2
1 2
1 1
1 2
1 2
1 2
1 1
2 2
1 1
1 1
2 1
2 1
1 2
1 1
2 1
2 1
2 2
2 1
2 1
1 2
1 2
2 2
2 1
1 1
2 2
1 2
2 1
1 2
1 2
1 1
1 2
2 1
2 1
2 1
1 2
2 1
2 2
2 2
1 1
1 1
1 2
1 2
2 2
1 1
2 2
2 1
1 2
2 1
2 2
1 2
2 1
2 2
2 2
1 1
2 1
2 2
1 1
1 2
2 2
2 2
1 2
2 1
1 2
1 2
1 1
2 2
1 2
1 1
1 1
1 2
1 2
1 1
2 1
2 1
2 2
2 2
2 1
1 1
2 2
1 1
1 2
1 1
2 2
1 2
1 1
1 1
1 2
1 2
1 2
1 1
2 2
1 2
2 1
2 1
2 2
1 2
2 2
1 1
2 1
2 2
1 2
1 2
2 2
2 1
1 2
2 1
2 1
2 2
2 1
2 1
2 2
1 2
1 1
1 1
2 2
2 1
2 2
1 2
1 1
1 1
2 2
2 2
2 1
2 1
1 1
2 2
2 1
1 2
2 1
2 2
1 1
2 2
1 2
2 2
1 2
1 2
1 2
1 1
1 1
1 2
2 2
1 1
2 1
2 1
1 1
1 2
2 1
2 2
1 2
2 2
2 2
1 1
2 1
2 1
1 1
2 2
2 1
2 2
2 2
1 2
1 2
2 2
1 1
1 2
2 2
1 1
1 1
1 1
2 1
2 1
2 2
2 2
2 1
2 2
2 2
2 1
1 2
1 1
1 1
2 2
1 2
2 2
1 1
1 2
2 2
2 1
2 2
1 2
2 2
2 1
1 1
1 2
2 2
1 2
2 2
2 2
1 2
2 2
2 1
2 1
2 2
1 1
1 1
1 2
2 2
1 1
1 2
2 2
2 2
2 2
2 2
1 2
1 2
1 1
2 2
2 2
2 1
1 1
2 1
1 2
1 1
1 2
2 1
2 1
2 1
1 2
1 2
1 1
2 2
1 1
2 1
1 2
2 2
2 1
2 1
2 2
2 1
1 2
1 1
1 2
2 2
1 1
2 1
2 1
2 2
1 2
2 1
2 2
2 2
2 1
2 1
1 2
1 1
1 1
2 2
1 2
2 2
2 1
1 2
1 2
1 2
2 1
1 2
2 2
1 1
1 1
1 2
2 1
2 2
1 1
2 2
2 1
1 1
2 1
2 2
1 1
1 1
1 2
1 2
2 2
1 1
2 1
1 1
1 1
1 1
2 1
2 2
1 2
1 1
2 1
2 1
1 1
2 2
2 1
2 1
2 1
2 1
2 2
2 2
2 2
2 2
2 2
1 1
2 1
1 2
2 2
2 1
2 2
2 1
2 2
2 1
1 1
1 2
1 2
2 2
2 2
2 2
1 2
2 2
1 2
1 1
1 1
1 2
2 2
2 1
1 2
1 1
2 1
1 2
2 2
2 1
1 1
2 1
1 1
1 1
1 2
2 1
2 1
1 1
1 1
2 1
2 1
1 1
1 1
1 2
2 1
2 2
2 1
2 1
2 2
2 2
1 2
2 1
2 1
1 2
2 2
1 2
1 1
1 1
2 2
2 1
1 2
2 1
2 1
1 1
2 2
1 1
1 1
1 1
1 2
2 2
2 2
1 1
1 2
1 1
1 2
1 2
2 2
1 2
2 2
1 1
2 2
2 2
2 2
1 2
1 1
2 2
2 1
2 1
2 1
2 2
1 2
2 2
2 1
2 1
2 1
2 2
1 2
2 1
2 1
1 2
1 1
2 2
1 1
1 2
2 1
1 1
2 2
2 1
1 2
1 2
1 1
2 1
2 1
2 2
2 2
2 1
2 1
1 1
1 1
1 2
2 2
2 2
2 2
2 2
2 2
2 1
1 1
2 2
1 2
2 1
1 1
2 2
2 2
1 2
1 1
2 1
2 1
1 1
2 1
1 1
1 2
2 2
2 1
1 2
1 1
2 1
1 2
1 1
1 1
2 1
1 2
1 1
1 1
1 2
2 2
1 2
2 1
1 1
2 2
1 1
2 2
2 1
1 1
1 1
1 1
2 1
1 1
1 2
2 1
2 1
1 1
1 2
2 1
1 1
2 2
1 2
1 1
2 2
2 2
2 2
1 2
2 2
2 2
1 1
1 2
2 2
2 2
1 2
1 1
1 1
2 2
1 1
2 1
2 1
1 1
2 2
2 1
1 2
1 2
1 2
1 2
1 1
1 2
1 2
1 2
2 2
2 1
2 1
1 1
1 2
2 2
1 2
1 1
1 2
2 1
1 2
2 2
1 2
1 2
1 2
2 2
2 2
1 1
1 2
1 2
2 1
2 2
1 1
2 1
1 1
2 1
2 2
2 2
1 1
2 1
2 1
2 1
1 2
2 1
2 1
2 1
2 1
1 1
2 1
2 2
2 2
2 1
2 2
1 2
1 1
1 2
2 2
2 2
1 1
1 2
2 2
1 2
2 1
2 1
2 2
2 1
1 2
1 2
2 1
2 2
2 1
2 2
1 2
2 1
1 2
1 2
2 2
2 1
2 2
1 1
1 1
1 2
2 2
1 2
2 1
1 1
1 1
1 2
1 1
1 2
2 2
2 1
2 1
1 1
2 2
1 1
1 2
2 2
2 1
2 2
2 2
2 1
2 1
2 1
1 1
2 2
1 1
1 2
1 1
1 2
1 1
1 2
2 1
2 1
2 2
2 2
1 1
2 2
1 1
2 1
1 1
1 1
2 1
2 1
1 2
2 2
1 2
1 2
2 2
1 2
2 1
2 2
2 1
2 2
1 1
1 2
1 2
2 2
1 2
1 1
2 1
1 2
1 1
2 1
2 1
2 1
2 2
1 1
1 2
2 1
2 2
2 1
2 2
1 2
2 2
1 2
1 1
1 1
1 1
1 1
1 1
2 2
1 1
1 1
2 2
1 1
1 1
1 2
2 2
1 2
2 2
1 1
1 2
1 2
2 2
1 1
2 2
2 1
2 2
1 2
2 2
2 2
2 1
2 1
1 2
2 2
1 2
1 2
2 2
1 1
2 2
2 1
1 2
2 2
2 1
1 2
1 1
1 2
1 1
2 2
2 2
2 1
2 1
2 2
2 2
1 2
1 1
2 1
2 2
1 1
2 1
2 1
2 1
2 2
2 1
2 1
1 1
2 1
2 2
1 1
1 2
1 1
2 1
1 2
2 2
2 1
1 2
1 1
2 1
2 2
1 2
1 2
1 2
1 2
1 2
2 1
1 1
1 1
1 1
1 2
2 1
1 2
1 1
2 2
1 1
2 1
1 2
1 2
2 2
2 1
1 1
2 2
2 2
1 1
1 2
1 1
2 1
1 1
1 2
1 1
1 2
1 2
1 1
1 2
2 2
2 2
2 1
1 1
2 1
2 1
2 2
1 2
2 1
2 2
2 1
2 2
2 1
1 1
1 2
1 1
2 1
1 2
1 2
1 1
1 1
1 1
1 1
2 2
1 1
2 2
1 1
1 2
2 2
1 2
2 2
1 1
2 1
1 1
1 2
1 1
1 1
1 1
2 1
1 2
1 1
1 1
1 2
2 2
2 1
1 1
2 2
2 1
2 2
1 2
1 1
1 2
1 1
2 1
1 1
1 1
1 2
2 1
1 1
1 1
2 2
1 1
2 2
1 2
1 1
1 1
2 2
2 1
1 1
1 2
1 2
1 2
2 1
2 1
2 1
2 1
2 1
1 1
2 1
1 2
2 1
1 1
1 1
2 1
2 2
1 2
1 2
2 2
2 2
1 2
2 1
1 2
2 1
2 1
1 1
2 2
1 2
1 2
1 2
1 2
2 1
2 2
1 1
2 2
1 2
1 2
1 2
2 2
2 1
2 2
1 2
2 1
1 1
2 2
2 2
1 2
1 1
2 2
1 1
2 2
2 1
1 1
2 2
1 1
2 1
2 1
1 1
2 2
1 1
2 2
1 2
2 1
1 2
2 1
2 1
1 2
1 2
1 2
1 2
2 1
2 2
2 1
2 1
2 2
2 1
1 1
2 1
1 1
2 1
1 2
2 1
1 1
1 1
2 1
2 1
1 2
1 1
1 2
2 1
2 2
1 1
1 1
2 2
1 1
2 2
2 2
2 2
1 1
2 1
2 2
2 2
1 1
1 2
2 1
1 1
2 2
2 1
1 1
2 1
1 1
1 1
2 2
2 2
2 2
2 1
2 2
2 1
2 1
2 2
1 1
2 1
2 1
2 2
1 2
2 1
2 2
2 2
1 1
2 1
1 1
1 1
2 1
1 1
2 1
1 1
2 2
1 1
2 2
2 1
1 1
1 1
2 1
1 2
1 1
1 2
2 1
1 1
1 2
1 2
2 2
2 1
1 2
1 2
1 2
2 2
1 1
1 2
1 1
2 2
1 1
2 2
2 2
1 2
1 1
1 2
1 1
2 2
1 1
2 1
1 1
1 2
2 1
2 1
2 1
1 1
2 2
2 2
1 2
1 2
1 2
2 2
1 2
2 2
1 1
2 2
2 1
2 1
1 1
2 2
1 1
1 1
2 1
2 1
1 1
2 2
2 1
2 1
1 1
2 2
1 1
2 2
2 1
1 1
1 1
2 1
1 2
1 1
2 1
2 1
1 2
1 1
2 2
1 1
2 2
2 1
1 2
1 1
1 1
1 2
1 2
1 2
1 1
2 1
1 2
2 2
1 2
1 1
2 1
2 2
2 2
2 1
1 1
1 2
2 1
1 1
1 1
1 2
1 2
1 2
2 1
1 1
1 2
2 2
2 2
2 2
1 2
2 1
1 1
2 1
1 1
2 2
1 2
2 1
1 1
1 2
2 1
1 2
2 1
2 2
1 2
1 1
1 2
1 2
1 1
1 2
2 2
1 2
1 2
1 1
1 2
1 1
1 2
1 2
2 2
2 2
1 1
2 2
2 1
1 2
2 2
1 1
2 1
2 2
1 1
2 2
1 2
2 1
1 2
1 1
2 2
2 2
1 2
1 2
2 1
2 1
1 1
2 1
1 1
2 2
2 1
1 2
1 1
2 2
2 2
2 2
2 2
1 1
1 2
2 1
1 2
1 2
2 1
2 1
1 1
2 2
1 1
1 2
2 1
2 2
2 2
2 2
2 2
1 1
1 1
1 1
2 2
1 1
1 2
2 2
1 1
1 2
2 1
1 2
2 1
2 2
2 1
2 2
1 2
2 1
1 2
1 1
1 2
1 1
1 2
2 1
2 1
2 2
2 1
2 1
1 1
1 1
2 2
2 1
2 2
1 1
1 1
2 2
2 2
2 2
2 2
1 1
1 1
2 1
2 2
1 2
1 2
2 2
2 1
2 1
2 2
2 1
1 2
2 2
1 2
1 2
1 2
1 2
2 2
2 2
1 1
2 2
1 1
2 1
2 1
2 1
2 2
1 1
2 2
1 2
1 2
1 2
2 2
1 1
2 1
2 2
1 1
2 1
1 2
1 2
2 1
2 2
2 1
1 1
2 1
2 2
1 2
2 2
1 2
1 1
1 1
1 2
2 2
2 1
1 2
2 1
1 1
1 1
1 1
2 2
1 2
1 1
2 1
1 2
1 2
2 1
2 2
1 2
2 2
2 2
2 2
2 1
1 1
1 1
2 1
2 1
2 1
2 1
1 1
2 2
2 1
1 2
1 2
2 1
2 1
2 2
2 2
2 2
2 1
2 1
2 1
2 2
1 1
1 1
2 1
2 1
2 1
1 2
1 2
1 2
2 1
1 2
1 2
2 2
1 2
1 2
1 1
2 1
2 2
2 2
1 1
1 2
1 1
2 1
1 1
1 1
2 1
2 2
2 2
1 1
2 2
1 2
1 1
2 2
2 1
2 2
2 2
1 2
1 1
1 1
1 2
2 2
2 1
2 2
1 1
1 1
1 2
1 2
2 1
2 2
1 1
1 1
1 2
2 1
2 1
1 1
1 1
1 2
1 2
2 2
2 1
1 2
2 2
1 1
2 1
1 2
2 1
1 2
2 1
2 2
2 2
1 2
2 2
2 1
2 1
2 1
1 2
1 1
2 2
1 2
2 1
1 1
2 2
1 2
2 1
2 2
2 1
2 2
1 2
1 2
1 1
2 2
1 1
1 2
1 2
1 1
2 2
1 1
2 1
2 1
2 2
1 1
1 1
1 2
2 2
2 1
1 2
1 2
1 1
2 2
1 2
1 1
1 2
1 2
1 1
2 2
1 1
1 2
2 1
1 1
1 1
1 1
2 2
1 1
1 2
1 2
2 2
1 2
2 1
2 2
2 2
1 1
1 2
1 1
1 1
1 2
2 2
1 2
1 1
2 1
1 2
2 1
2 2
1 2
1 2
1 1
1 2
2 2
2 1
2 1
2 1
1 2
2 2
1 1
1 1
2 1
1 1
2 1
1 1
1 2
2 2
1 1
2 1
2 2
1 1
2 2
1 2
2 2
2 1
1 1
1 2
1 2
1 1
1 1
1 2
1 2
2 2
2 2
1 1
2 1
1 1
1 1
2 1
1 1
1 2
1 2
1 1
2 1
2 1
2 2
2 2
1 1
1 1
2 2
1 1
1 1
2 1
2 2
2 2
2 2
2 2
1 2
2 2
2 2
2 1
2 2
2 1
2 1
1 1
2 1
2 2
2 1
1 2
1 2
1 1
1 1
1 1
1 2
1 2
1 2
1 1
1 1
2 2
2 2
1 1
2 1
1 2
2 2
1 2
1 2
2 1
2 2
1 1
2 1
1 1
1 2
1 2
2 2
1 2
2 2
1 1
2 2
1 2
2 2
1 1
2 1
1 1
2 2
1 1
2 2
1 1
1 1
1 1
2 2
1 1
2 2
2 1
1 1
1 1
2 1
2 2
2 2
1 1
1 1
1 1
2 2
2 1
1 1
1 1
1 1
2 1
2 1
1 2
2 1
1 2
2 1
1 1
2 1
2 2
1 1
1 2
2 1
1 2
1 1
2 2
2 1
2 1
2 1
2 1
2 2
2 2
2 2
2 2
1 2
1 2
1 1
1 1
2 2
1 1
2 2
2 1
1 2
2 2
1 2
2 2
1 2
1 1
1 1
1 1
1 1
2 1
2 1
2 1
1 1
2 1
1 2
1 1
2 2
1 1
1 2
2 1
1 2
1 2
1 2
1 1
2 2
1 2
1 2
2 2
2 2
2 2
1 1
1 1
2 2
1 2
1 1
2 1
1 1
2 2
2 1
2 1
2 1
2 2
2 2
2 1
1 1
2 1
2 2
2 1
1 2
2 1
2 2
1 2
1 2
1 1
1 2
2 2
1 1
2 1
1 1
1 2
2 1
2 2
2 1
1 1
2 1
1 1
2 1
2 1
2 1
1 1
2 2
1 2
1 2
1 1
2 2
2 1
1 1
2 2
2 1
1 1
1 1
2 2
2 2
1 1
1 1
1 2
2 1
1 2
2 1
1 2
2 1
1 2
2 1
1 1
1 1
2 2
1 2
2 1
2 1
1 1
1 1
1 1
1 2
2 2
1 1
1 1
1 1
2 2
1 2
1 1
1 2
1 2
1 2
1 2
1 1
2 2
2 2
1 2
2 1
1 1
1 2
2 2
2 1
1 2
1 2
2 2
1 2
2 2
1 1
1 2
1 2
2 1
2 2
2 1
1 1
1 1
1 2
1 2
2 1
2 1
2 1
2 2
2 1
2 2
2 1
1 2
1 1
2 2
1 1
1 1
2 1
2 2
1 1
1 2
1 1
1 2
2 1
1 1
2 2
2 1
2 2
2 1
2 1
2 1
2 2
1 2
1 2
1 2
1 2
1 1
1 1
1 1
1 1
1 2
1 2
1 1
1 1
1 2
2 2
2 2
2 2
2 2
1 1
1 1
1 1
2 2
1 1
2 1
2 1
2 2
2 1
1 2
2 2
2 1
1 1
1 1
1 1
1 1
2 2
1 2
2 2
1 2
2 2
1 2
1 1
1 1
2 2
1 1
1 1
1 2
2 1
1 1
1 1
2 1
1 1
1 1
1 1
1 1
1 1
2 2
2 2
1 2
1 2
2 1
2 1
1 2
2 1
2 1
1 1
1 1
1 2
2 2
1 2
1 1
2 1
2 1
1 2
2 1
1 2
1 1
2 2
1 2
2 1
1 2
1 2
1 2
1 1
1 2
1 2
1 1
2 2
2 2
1 2
2 1
2 1
1 1
2 2
1 1
1 1
1 2
1 2
1 2
1 1
1 2
1 2
2 2
2 2
1 2
1 1
2 1
2 2
1 1
2 1
1 2
2 1
1 1
1 2
2 2
1 2
2 2
2 2
1 2
1 1
2 2
1 1
2 2
1 1
2 2
2 1
1 1
2 2
2 2
2 1
2 2
1 1
2 1
2 2
2 1
2 2
2 1
2 1
1 2
1 2
2 1
1 1
1 1
2 1
1 1
2 1
2 2
2 2
2 2
2 1
1 1
1 1
2 2
1 2
1 2
1 2
1 2
2 1
2 1
2 1
2 1
1 2
2 2
2 1
2 2
2 1
1 1
1 1
2 1
1 1
1 1
2 2
1 2
2 2
2 1
2 1
2 2
1 2
1 2
1 2
1 1
1 2
2 1
2 1
1 1
1 2
1 1
1 1
1 2
1 2
2 1
2 1
2 2
2 1
2 1
2 2
1 1
1 1
1 2
1 2
2 1
1 1
1 2
2 2
2 1
1 1
2 1
2 2
2 2
2 2
2 1
1 1
2 1
1 2
2 2
1 2
1 1
2 1
1 1
1 2
2 1
1 1
1 1
2 2
1 1
1 1
1 1
2 2
1 1
1 1
2 2
1 2
2 1
2 1
1 2
2 2
2 2
2 1
2 2
2 2
1 1
1 1
1 2
2 1
1 2
1 2
2 2
1 2
1 1
1 1
2 1
1 1
2 2
1 2
1 1
2 1
2 1
2 1
1 1
1 2
1 1
1 1
2 1
2 2
2 2
2 1
2 2
2 2
2 1
2 2
2 2
1 1
2 2
2 1
1 2
1 1
1 2
2 1
1 2
1 1
2 2
1 1
1 2
2 1
1 2
1 1
1 1
1 2
2 1
1 2
1 1
2 2
2 2
1 2
1 1
2 2
1 2
1 1
2 1
2 2
2 2
1 2
2 2
2 2
2 2
2 2
1 2
2 2
1 2
2 1
1 2
2 2
2 1
2 1
1 2
2 2
2 1
1 1
1 2
2 2
1 1
1 1
1 2
1 2
1 2
1 1
1 1
2 2
2 1
2 2
1 2
2 2
2 2
1 1
2 2
1 1
2 1
1 2
1 1
1 2
2 1
1 2
1 2
1 1
1 1
1 1
1 1
1 2
2 2
2 1
2 2
2 2
2 1
1 2
2 2
1 2
1 1
2 2
1 2
2 2
2 1
2 1
1 1
2 1
2 2
2 1
2 2
2 1
1 1
1 1
1 2
1 2
2 2
2 1
1 1
1 2
2 1
1 1
1 2
2 1
1 1
2 1
2 2
2 1
1 2
2 2
2 2
1 1
1 2
1 1
1 1
1 2
1 1
1 2
1 2
1 1
1 2
1 1
2 1
2 1
2 2
2 1
2 2
1 1
2 2
1 2
1 1
1 2
1 1
1 2
2 2
2 2
2 2
1 1
2 2
1 2
1 1
2 2
1 1
1 2
1 2
1 2
1 1
1 1
2 1
2 1
2 1
2 2
2 1
1 2
2 1
2 1
1 2
1 2
1 1
1 2
1 2
1 1
1 2
1 1
1 2
1 1
2 1
2 1
2 2
1 1
1 1
2 2
2 1
1 2
2 2
2 2
1 1
1 2
1 1
1 1
2 1
2 1
2 1
2 2
2 1
1 2
1 1
2 2
1 2
1 2
2 2
1 2
1 2
2 1
2 1
1 1
1 1
1 1
2 2
1 2
2 1
1 2
1 1
2 2
2 1
2 2
1 2
2 1
1 1
1 2
2 2
2 1
2 2
1 2
1 1
1 2
2 1
1 1
2 2
1 2
2 1
1 1
2 2
2 1
1 1
1 2
1 1
2 2
2 2
2 1
2 2
1 2
2 1
1 2
2 1
2 2
1 1
2 1
2 2
2 2
1 2
1 2
2 1
2 1
1 1
2 2
2 2
1 2
2 2
2 1
1 2
2 1
2 1
1 1
1 2
2 2
2 1
2 1
2 2
1 2
1 2
2 2
2 1
1 1
1 2
1 2
1 2
2 2
2 2
1 1
1 1
2 1
2 1
1 1
2 1
2 2
2 1
2 2
1 2
2 2
2 2
1 2
1 1
1 1
1 1
1 2
1 1
1 2
1 1
1 1
2 1
1 2
1 2
1 1
1 2
2 2
2 1
1 1
2 1
2 2
1 2
2 2
2 1
1 1
1 2
1 2
1 2
2 2
1 2
2 2
2 2
2 1
1 1
1 2
1 2
1 2
1 1
1 1
1 2
1 2
1 1
1 2
2 1
2 1
2 1
1 2
1 1
2 2
1 1
1 1
2 1
2 2
1 2
1 1
2 1
2 2
1 1
1 2
1 2
1 2
2 1
2 2
2 2
2 1
1 2
2 2
2 1
1 1
1 1
1 1
2 1
1 1
2 2
2 1
2 1
2 2
2 1
2 2
2 2
2 2
1 2
2 1
2 1
2 1
2 1
1 1
2 1
2 2
1 1
1 1
2 1
2 1
2 1
2 2
1 1
1 1
1 1
2 1
2 2
1 2
1 2
2 1
1 2
2 2
2 2
1 2
2 1
2 2
2 2
2 1
1 1
1 2
2 2
2 2
1 1
1 1
2 2
2 2
2 2
1 1
2 1
2 2
2 2
1 2
2 1
2 2
2 2
1 1
2 1
1 2
2 1
2 2
2 2
2 1
1 2
1 2
2 2
1 2
2 1
2 2
1 1
1 1
1 1
1 2
2 1
2 1
2 2
2 1
2 2
2 1
2 1
1 1
1 1
2 2
1 1
2 2
2 1
1 2
2 2
2 1
2 1
2 2
2 1
1 2
1 1
1 2
2 1
1 2
1 1
1 2
1 1
1 1
2 2
1 2
1 2
1 1
1 2
1 1
1 2
2 2
2 1
1 1
2 1
1 1
1 2
2 2
1 1
1 1
2 2
1 2
2 1
2 1
1 2
2 1
1 2
2 1
1 1
1 2
2 1
1 1
1 2
2 1
2 1
2 2
2 1
2 1
2 2
2 2
2 2
1 2
1 1
2 2
2 2
1 2
1 1
2 2
1 2
1 2
1 1
1 2
1 2
2 1
2 1
1 2
1 1
1 1
1 1
2 1
1 1
2 1
2 2
2 2
2 2
1 2
2 2
1 1
1 2
1 2
2 2
2 2
1 1
1 1
1 2
1 1
2 2
1 2
1 2
2 2
1 2
2 2
2 1
2 2
2 1
1 1
2 2
1 2
1 1
1 2
2 1
1 1
1 1
2 1
2 2
2 1
1 2
1 1
2 1
2 1
2 1
1 1
2 2
2 2
1 1
1 2
1 1
1 2
2 2
2 1
2 1
1 2
1 2
1 1
1 1
2 2
1 1
2 2
1 1
1 1
2 1
1 1
1 2
2 1
2 1
1 1
1 1
2 1
1 1
1 1
2 2
1 1
2 2
1 2
1 2
1 2
1 1
1 2
1 2
1 1
1 2
2 2
2 1
2 1
1 2
1 1
1 2
2 2
2 2
1 2
2 2
2 2
2 2
2 2
2 2
2 2
1 2
1 1
1 1
1 1
1 2
2 2
2 2
1 1
1 1
2 2
1 1
2 2
1 2
1 2
1 2
2 2
1 1
1 2
2 2
1 1
1 2
1 1
2 1
2 1
1 1
1 1
2 2
1 1
1 2
1 2
2 1
1 2
2 1
1 1
2 2
1 1
2 2
1 2
1 2
1 1
2 2
2 2
2 1
1 1
1 2
2 2
1 1
1 2
1 2
1 1
1 1
1 2
2 2
1 1
2 2
2 2
2 2
2 1
1 2
1 2
1 1
1 1
1 2
1 1
2 2
2 1
2 2
2 2
2 1
1 2
2 1
2 2
1 1
2 2
1 1
2 1
1 1
2 2
2 1
1 2
1 1
2 1
2 1
2 2
2 1
2 2
1 1
2 1
2 2
2 2
1 1
2 2
1 2
2 1
2 2
2 1
1 1
1 2
1 1
1 1
2 1
1 2
1 2
1 1
1 2
2 2
1 2
1 1
1 1
1 1
1 1
2 2
1 1
1 2
2 2
2 1
2 2
2 1
1 1
2 2
2 1
1 2
1 1
2 2
2 1
1 2
2 1
2 1
2 2
1 2
1 2
1 2
2 2
2 1
2 1
1 2
2 1
2 1
2 1
1 1
1 1
1 2
1 2
1 1
1 1
1 1
2 1
1 1
1 1
2 2
2 2
2 1
1 2
2 2
1 1
2 2
2 2
1 2
1 2
1 2
2 2
2 2
2 2
1 2
1 1
1 1
2 1
1 2
1 1
2 1
2 2
2 1
2 2
1 1
1 1
1 2
1 1
2 2
2 2
2 2
2 2
2 1
2 2
2 1
2 1
1 2
1 2
1 1
1 1
1 1
2 2
2 2
2 1
1 1
1 1
2 2
1 2
1 2
1 1
2 1
2 2
1 1
2 1
1 1
1 1
1 2
2 2
1 1
1 1
2 1
2 2
1 1
1 2
2 1
2 1
2 1
2 1
1 2
2 1
2 1
2 2
1 1
2 1
2 1
2 2
1 1
1 2
1 2
1 2
2 1
2 1
1 2
1 1
1 1
1 1
2 1
1 2
2 2
1 1
2 2
1 2
1 1
2 1
2 1
2 1
2 2
2 2
1 2
1 1
1 1
1 2
1 2
2 1
1 2
2 1
1 1
1 2
2 2
2 2
2 2
1 1
1 2
2 2
2 1
1 1
2 1
2 1
1 1
1 1
2 1
2 1
1 2
1 2
2 1
1 2
1 2
2 2
2 1
2 1
2 1
1 1
2 2
2 1
2 1
1 2
1 2
2 1
1 2
1 2
2 1
2 2
1 2
2 2
2 2
2 1
2 2
2 2
1 2
1 2
2 2
2 1
2 1
2 1
1 2
2 2
2 2
2 2
2 1
1 2
2 2
1 2
1 1
2 1
1 2
1 1
2 2
2 1
2 1
2 1
1 1
2 2
2 1
1 2
2 1
1 1
2 1
1 2
2 2
1 2
1 1
2 2
2 1
2 2
1 2
2 2
2 1
2 2
2 1
2 1
2 1
2 2
2 1
1 1
2 1
2 1
2 2
1 2
2 2
1 1
2 1
1 1
2 1
2 1
1 1
2 1
1 2
2 2
1 1
1 2
1 1
2 2
1 1
1 2
2 2
1 2
2 2
2 2
1 2
1 1
2 1
1 1
2 1
1 1
1 2
2 1
2 2
2 1
1 1
2 1
1 2
1 1
1 1
1 1
1 2
2 1
1 2
1 2
2 1
1 2
1 1
1 2
1 2
2 2
1 1
1 1
1 2
1 1
1 1
1 2
2 1
1 1
1 2
2 2
2 2
1 1
2 2
1 1
2 2
2 2
2 2
2 1
2 1
2 2
1 2
2 2
1 2
1 2
1 2
2 1
1 2
1 2
1 1
1 2
1 2
1 2
1 2
1 1
2 2
2 1
1 2
2 2
1 2
2 2
2 1
1 1
1 1
2 1
2 2
2 1
2 1
1 2
1 1
2 2
1 2
2 2
1 2
1 1
1 1
1 1
1 2
1 2
2 1
2 1
2 2
1 1
2 1
1 1
1 2
1 1
1 1
1 2
1 1
2 2
1 2
1 2
1 1
1 2
2 1
1 2
1 2
1 2
2 2
2 1
2 1
1 1
2 1
1 1
2 1
1 2
2 1
1 2
2 2
1 1
1 2
2 2
1 1
1 2
1 1
2 1
1 2
1 2
2 1
1 2
1 2
2 2
1 2
2 2
2 1
2 1
1 2
2 1
2 1
2 1
1 1
1 1
1 2
1 1
2 2
2 1
1 1
2 2
2 1
1 1
1 2
2 1
1 2
1 1
2 2
1 2
2 1
2 1
1 1
1 2
2 2
2 2
1 2
2 1
1 1
1 1
2 2
1 1
1 1
2 2
2 2
1 2
1 1
2 2
1 2
2 2
2 1
2 2
1 2
2 1
1 2
1 1
1 2
1 2
2 2
1 2
1 1
2 1
2 1
1 1
1 1
1 2
1 1
2 1
2 1
2 1
2 1
1 1
2 2
2 1
2 2
1 2
1 2
2 2
1 2
2 1
2 2
1 2
1 1
2 2
2 1
2 1
2 1
2 2
2 2
1 2
1 2
1 1
2 2
2 1
2 1
1 1
2 1
2 1
2 2
1 1
1 1
2 2
1 2
2 2
2 2
2 1
2 1
2 1
1 1
1 1
1 2
2 2
1 2
2 2
2 2
2 1
2 2
2 2
2 2
2 1
1 2
2 2
1 1
2 2
2 1
2 1
2 1
1 2
1 2
2 1
2 2
1 2
1 1
2 2
2 2
2 2
1 1
1 2
1 2
2 1
1 1
2 1
1 2
2 2
1 1
1 1
2 2
1 1
2 2
1 1
2 2
2 1
1 2
1 1
2 1
1 1
2 2
2 1
1 2
2 1
2 1
1 2
1 1
1 2
2 1
1 1
2 2
2 2
1 1
1 2
2 2
2 2
2 1
1 2
2 2
2 1
2 2
1 1
1 2
2 1
2 1
1 1
1 1
1 2
2 2
1 2
2 2
1 1
2 2
2 1
2 2
2 1
1 2
1 2
1 2
2 1
2 2
1 1
2 2
1 2
1 1
2 1
1 2
2 2
1 2
2 2
1 2
2 1
2 2
1 2
2 2
1 2
1 2
2 2
1 2
2 1
2 2
2 2
1 2
1 2
2 1
2 1
1 2
1 2
1 1
1 2
2 2
2 1
2 1
1 2
1 2
2 2
1 2
2 1
1 2
1 2
1 1
2 2
1 2
2 2
2 2
1 1
1 2
2 2
2 2
1 1
2 1
1 2
1 2
1 1
1 2
2 2
2 2
1 1
2 1
1 2
2 1
1 2
2 2
1 2
1 1
1 2
2 2
1 2
2 2
2 1
1 2
2 1
2 1
1 1
1 1
2 1
2 1
1 2
1 2
1 1
2 1
1 2
1 2
1 1
2 2
2 1
2 1
1 2
1 2
2 1
1 2
1 1
2 2
1 2
2 2
1 1
1 1
1 2
1 1
1 1
1 1
2 1
1 2
2 1
1 1
2 2
2 2
1 2
1 2
1 2
1 1
2 2
2 2
2 2
2 1
1 1
2 2
1 1
2 2
2 1
1 2
1 2
2 1
1 2
2 2
2 1
1 2
1 1
2 2
1 2
2 2
1 2
2 2
1 1
2 2
1 2
1 2
1 2
2 2
1 1
2 1
2 1
1 1
1 1
1 2
2 1
2 2
2 2
2 1
1 1
2 1
2 2
1 2
1 2
1 1
1 1
1 1
1 2
1 1
2 1
2 1
2 1
2 1
1 2
1 1
1 2
2 1
2 2
1 2
1 1
1 2
1 1
2 1
2 1
1 2
1 2
1 1
2 1
2 1
2 1
1 2
2 1
2 1
1 2
2 1
2 1
1 2
2 2
2 2
2 1
2 2
2 1
2 1
1 1
2 2
1 2
2 2
1 1
2 1
1 2
1 1
2 2
1 1
1 1
2 1
1 2
2 2
1 1
2 1
1 2
1 1
1 1
2 2
1 1
2 2
1 2
2 1
1 2
1 2
1 1
1 2
1 2
1 1
2 1
1 1
2 2
1 1
1 2
2 1
1 2
2 2
2 2
1 1
2 1
1 2
2 2
2 1
1 1
2 2
1 2
1 2
2 2
1 1
2 2
1 2
2 2
1 1
1 1
2 1
2 1
1 1
1 2
1 2
1 1
1 1
2 2
2 1
1 2
2 1
1 2
2 2
2 2
2 1
2 1
1 1
2 1
1 1
1 2
1 2
2 2
2 1
2 1
2 2
2 2
2 2
1 2
1 2
2 2
1 1
1 2
1 1
1 2
2 2
1 2
2 1
2 1
2 1
2 2
2 2
2 1
1 2
2 1
2 2
1 2
1 1
2 1
2 2
1 2
1 2
1 2
2 1
1 2
1 1
2 2
1 1
2 1
1 1
1 1
2 1
1 1
2 1
2 1
2 1
1 1
2 1
1 1
2 2
1 2
2 2
1 2
1 1
1 1
1 2
1 2
2 1
1 2
2 2
1 1
1 2
2 1
1 2
1 2
1 1
2 2
1 2
2 2
1 1
1 1
1 2
2 2
2 2
2 2
2 2
2 1
2 1
1 2
1 1
2 1
1 1
2 1
1 1
2 2
2 2
2 2
1 2
1 2
1 1
1 2
2 1
1 1
1 2
2 1
2 1
2 1
2 1
1 2
1 1
2 2
2 1
2 1
1 1
2 1
1 1
2 1
2 1
2 2
2 1
1 1
1 2
1 1
1 2
2 1
1 2
1 2
2 1
1 1
2 2
2 1
1 1
2 1
2 1
2 2
2 2
1 2
2 2
1 2
1 1
2 2
1 1
1 1
2 2
2 1
1 2
2 1
1 1
1 1
2 2
2 2
2 1
1 2
1 1
2 1
2 1
2 2
1 1
1 2
1 2
2 2
2 2
2 1
1 2
2 2
2 2
2 2
2 1
1 1
2 2
2 2
1 1
2 1
2 2
1 1
1 2
2 2
1 2
1 2
1 2
1 1
1 2
1 1
2 2
1 1
1 1
1 2
1 1
1 1
2 1
1 2
1 2
1 2
1 1
1 1
2 1
1 1
2 2
1 1
2 2
2 1
2 2
1 1
2 2
2 2
1 1
1 2
2 2
1 1
2 1
2 2
2 1
2 1
1 2
2 1
1 2
2 2
2 1
2 2
1 2
1 2
1 1
1 1
1 1
1 2
2 1
1 1
2 1
1 1
1 2
2 2
1 2
2 1
1 2
2 2
1 1
1 1
1 1
2 1
1 2
1 1
2 1
1 2
1 2
1 1
1 1
1 1
2 2
2 1
2 1
1 1
2 2
1 1
2 1
1 1
1 2
1 1
1 1
1 1
1 2
1 2
2 2
1 2
1 1
2 2
2 1
2 1
1 1
2 2
1 2
1 1
1 1
1 1
1 1
1 1
2 2
1 1
2 1
1 1
1 2
2 2
2 1
2 1
1 1
2 2
1 1
1 1
2 2
2 1
1 1
1 1
2 2
1 1
2 2
2 1
1 1
2 2
1 2
2 2
1 2
2 2
1 2
2 2
2 1
2 2
2 2
1 1
1 1
2 2
1 2
2 2
2 1
1 2
1 1
1 1
1 1
2 1
1 1
1 1
2 2
2 1
2 2
2 2
1 2
2 2
1 1
2 2
2 2
1 1
1 1
2 1
1 1
2 1
1 1
1 2
1 2
1 2
1 1
1 2
1 2
2 1
2 2
1 2
2 2
2 2
2 2
1 2
1 1
2 2
1 1
2 2
2 2
1 1
2 2
1 2
2 1
1 2
1 1
2 1
2 1
1 1
1 1
1 1
1 2
1 2
1 1
2 1
1 2
2 2
2 1
2 2
2 2
1 2
2 2
1 2
2 1
2 1
1 2
2 2
1 2
1 2
2 2
2 1
1 1
1 1
2 2
1 2
1 1
2 2
2 2
2 2
1 2
2 2
2 2
1 2
2 1
2 1
2 2
2 1
1 2
2 2
2 2
1 1
2 1
1 2
1 1
2 1
1 1
2 1
2 1
1 1
2 1
2 2
1 1
1 2
2 2
2 2
1 1
1 1
2 1
1 2
2 1
2 2
1 1
1 1
1 2
2 2
2 2
1 2
2 1
2 2
2 1
1 1
2 2
2 1
2 2
1 2
1 1
1 2
1 1
2 1
1 2
1 1
1 1
2 1
2 2
2 2
2 1
2 1
1 2
2 1
1 2
1 1
1 2
2 2
1 2
1 2
2 1
2 1
1 2
2 1
1 2
1 2
2 2
1 1
1 2
1 1
2 1
2 1
2 2
2 2
2 1
2 2
1 1
1 2
2 2
1 1
2 2
2 2
1 1
1 1
2 1
2 2
1 1
1 1
1 2
1 1
2 2
1 2
1 2
2 2
2 2
1 2
1 1
2 1
1 2
2 1
2 2
2 1
1 2
1 2
2 2
1 2
2 1
2 2
2 2
2 2
1 2
1 2
2 1
2 2
1 1
1 1
1 1
2 2
2 1
1 2
1 1
2 2
1 2
2 2
2 2
2 1
2 1
1 1
2 1
2 1
1 1
1 2
1 2
1 1
1 2
1 2
2 1
1 1
2 2
2 2
2 1
1 2
1 2
1 2
2 1
1 1
1 2
1 2
2 2
1 1
2 2
2 2
2 1
2 1
1 2
1 2
1 2
1 2
2 1
1 2
2 1
1 1
1 2
2 2
1 2
1 2
1 1
1 1
1 2
2 2
1 2
2 2
2 2
2 1
2 1
1 2
1 1
2 1
2 1
1 1
2 2
1 1
1 1
1 2
2 2
2 2
2 1
2 1
1 1
2 1
2 2
1 1
2 2
2 1
1 1
2 2
1 1
1 2
2 2
1 1
1 1
1 2
1 2
2 2
1 1
1 1
1 2
2 2
1 1
1 2
2 1
2 1
1 1
1 2
1 2
2 1
2 1
2 2
2 1
2 1
2 1
1 1
2 1
1 2
2 2
1 2
2 2
1 1
2 1
2 2
2 2
1 2
1 2
1 1
2 1
1 2
2 1
2 1
1 1
2 2
2 2
1 2
2 2
2 1
2 1
1 1
2 2
2 2
2 1
1 1
2 1
1 1
1 2
1 1
2 1
1 1
1 2
2 2
2 2
2 1
2 1
1 2
1 2
1 1
2 2
2 1
1 2
2 1
1 2
1 1
2 2
1 2
1 1
1 2
2 1
1 1
1 2
1 1
2 2
2 2
1 1
1 2
1 2
2 2
1 2
1 1
2 2
2 2
1 1
1 1
2 2
1 1
2 2
1 2
1 2
2 2
1 1
1 2
2 1
2 2
2 1
1 1
2 1
2 2
2 2
2 1
1 1
2 2
2 2
2 1
1 2
2 2
1 2
2 1
1 1
1 2
2 1
2 2
1 1
1 2
1 1
1 1
2 2
2 2
1 2
2 1
1 2
2 2
2 2
1 2
2 1
1 1
1 1
2 2
2 1
1 1
1 1
2 2
1 1
1 2
2 2
1 1
1 2
1 2
1 1
2 1
1 1
1 1
1 1
2 2
2 1
1 1
2 2
2 1
1 2
2 1
1 2
1 1
2 2
2 2
1 2
1 2
1 1
2 1
2 2
1 1
2 2
2 1
1 1
2 1
2 1
1 1
2 1
1 1
1 2
1 1
2 1
2 1
2 2
1 2
2 2
1 1
1 1
2 2
2 1
2 2
1 1
1 1
1 1
1 2
2 2
2 2
2 1
1 1
2 2
2 2
1 2
2 1
2 2
1 2
2 2
2 1
2 1
2 1
1 2
2 2
1 1
2 1
1 1
1 1
2 2
2 2
1 1
2 2
1 1
1 1
2 1
2 2
1 1
2 2
1 1
2 1
2 2
1 1
1 2
2 1
2 1
1 1
1 2
2 1
2 2
1 2
1 2
2 1
2 1
2 1
2 1
1 1
1 2
1 2
2 2
1 2
2 2
1 2
1 2
1 2
1 1
2 1
2 2
2 1
2 2
2 2
1 2
1 1
2 1
2 1
1 2
1 1
1 1
1 2
1 2
1 1
2 2
1 2
1 1
1 2
2 2
2 1
2 1
2 1
1 2
2 2
1 1
1 1
2 1
2 2
2 2
2 1
2 1
1 1
1 2
2 2
2 2
2 2
2 1
2 1
1 2
2 1
1 2
1 2
2 2
1 2
2 2
2 2
2 1
1 1
2 1
1 2
1 1
2 1
1 2
1 1
2 1
2 1
1 2
1 1
2 2
1 1
1 2
1 2
1 2
2 1
2 1
2 2
2 1
2 2
2 1
1 1
1 2
2 1
2 2
1 1
1 2
1 2
2 1
1 1
2 1
2 1
2 1
2 2
2 1
1 1
2 2
1 2
1 1
1 2
1 2
1 1
1 1
2 2
2 1
1 2
1 2
2 2
2 2
1 2
1 1
1 2
1 1
1 1
2 1
1 1
2 2
1 2
1 1
1 2
1 2
1 1
1 1
1 1
2 2
1 1
2 1
1 1
2 2
2 2
1 1
1 2
2 2
1 1
1 2
2 2
2 2
2 2
2 2
2 1
1 2
2 1
2 2
1 2
2 2
1 2
1 1
1 2
2 1
1 2
1 1
2 2
2 2
1 1
2 2
2 1
1 1
2 1
1 1
2 2
1 2
1 2
1 2
1 2
1 2
2 2
1 1
2 2
2 1
1 2
1 2
2 1
1 2
2 2
2 1
1 1
1 1
1 2
1 2
2 1
1 1
1 2
2 2
1 2
1 1
2 2
2 2
2 2
1 1
2 1
2 2
1 2
2 2
1 2
1 1
2 1
1 1
2 2
1 1
1 1
2 1
2 1
1 1
1 1
1 2
2 1
2 1
2 2
1 1
2 2
2 1
1 2
2 2
1 1
2 1
2 2
2 1
1 2
1 1
1 2
2 1
2 2
1 1
2 1
1 2
1 2
1 2
1 2
2 1
2 1
2 2
1 2
2 1
1 1
1 2
1 1
1 2
2 1
1 1
2 2
1 1
2 2
1 1
2 1
1 1
1 1
2 2
1 1
1 1
2 2
2 2
2 2
2 2
1 1
1 1
2 1
2 1
2 1
2 1
2 1
2 2
2 1
1 1
2 1
2 2
1 1
1 1
2 2
2 2
1 2
2 1
2 2
2 1
2 2
1 1
2 1
1 2
1 2
2 1
1 1
1 2
2 2
1 1
2 1
2 2
2 1
2 1
1 2
2 1
1 1
2 2
2 2
2 2
1 1
2 2
1 1
1 1
2 1
1 2
2 2
2 2
1 2
1 2
1 1
2 2
2 1
1 1
2 2
1 1
1 1
1 2
1 1
1 1
2 2
1 1
1 2
1 2
2 1
1 1
1 2
2 1
2 2
2 2
1 1
1 1
2 1
2 2
1 1
1 1
2 2
1 2
2 1
2 2
2 1
2 1
2 1
1 2
2 2
2 1
1 1
2 1
1 1
2 2
1 1
2 2
2 2
2 1
1 1
1 1
2 1
2 1
2 2
1 1
2 2
1 2
1 2
2 2
2 1
2 1
1 1
1 1
2 1
2 2
1 2
2 2
2 2
2 2
1 1
1 2
1 2
2 2
2 2
1 2
1 2
2 2
2 1
2 2
1 2
2 2
2 2
2 1
1 2
1 2
2 2
2 1
2 2
2 2
1 2
1 2
1 2
1 1
1 2
2 1
1 2
2 1
1 1
2 2
1 1
2 2
1 2
2 2
1 1
1 2
2 2
2 1
2 1
2 1
1 2
2 2
1 1
1 2
1 1
2 2
1 2
2 2
1 1
1 1
2 2
1 1
2 2
1 1
2 1
2 1
2 1
2 1
2 1
1 1
2 2
2 2
2 2
1 1
2 1
1 2
1 2
2 2
2 1
2 2
2 2
2 2
1 2
2 1
2 2
1 2
2 1
1 2
1 1
1 2
1 2
2 1
1 2
1 1
1 2
2 2
1 2
2 2
1 2
1 1
1 1
2 2
2 1
1 2
2 1
1 2
2 2
2 2
1 2
2 1
1 1
2 2
1 1
2 2
1 2
2 2
2 2
2 1
2 1
1 2
1 1
1 2
2 1
2 1
1 2
1 1
2 2
2 1
1 2
1 2
1 1
2 2
2 2
1 2
1 1
1 2
2 1
2 1
2 2
2 2
2 1
2 2
2 1
2 1
2 1
2 2
1 1
1 1
2 1
1 1
2 2
1 1
2 2
1 1
1 1
2 1
2 2
1 2
2 2
1 1
1 1
1 2
1 1
2 2
1 1
2 2
1 1
2 1
1 2
2 1
1 1
1 1
1 2
2 1
2 2
2 2
1 1
2 1
1 1
2 1
1 1
2 1
2 2
1 2
2 1
1 1
2 2
2 1
1 1
1 1
1 2
2 2
2 1
1 1
2 2
2 2
2 2
2 2
1 1
2 2
2 1
1 2
2 2
2 2
2 1
2 2
1 1
2 2
2 2
2 1
1 2
1 2
2 1
2 2
2 1
1 1
1 2
2 1
2 2
2 2
2 1
1 2
1 2
1 1
1 1
1 2
2 1
2 2
2 1
2 1
1 2
1 1
2 2
2 2
2 2
2 2
2 1
1 2
1 2
2 2
2 2
2 2
1 1
1 2
2 2
2 2
1 1
1 2
1 1
1 1
2 2
1 2
2 2
2 1
1 1
1 2
2 1
1 1
2 1
2 1
2 1
1 1
2 1
2 2
1 1
1 2
2 2
2 2
2 1
1 2
2 2
2 2
2 2
1 1
2 2
2 2
2 2
2 2
1 2
1 2
2 2
1 1
1 2
1 1
2 1
1 2
2 2
2 2
2 1
2 2
1 2
1 2
1 1
2 2
1 2
2 2
2 1
2 2
2 1
1 1
1 1
1 2
1 2
1 2
1 2
1 2
1 2
1 1
1 1
2 1
2 1
2 2
1 1
2 2
2 1
1 1
2 1
2 1
1 2
2 2
2 2
1 1
1 1
1 1
2 2
2 1
1 1
1 2
1 2
2 2
2 2
1 2
2 1
1 2
2 1
1 1
1 2
2 1
1 2
1 1
2 2
1 1
2 1
2 2
1 2
2 2
1 1
1 2
2 2
1 2
1 1
1 1
2 1
2 2
1 2
1 1
1 2
2 2
2 2
1 2
2 1
1 1
2 2
2 2
2 1
1 2
2 1
1 1
1 2
1 1
1 1
2 2
2 1
2 2
1 2
1 1
1 1
1 2
2 2
2 1
1 1
1 1
2 1
2 1
1 2
1 1
2 2
2 2
1 2
2 2
2 2
2 2
2 1
1 1
1 2
1 1
1 1
2 1
2 1
2 2
1 2
2 2
1 2
1 1
2 1
1 1
2 1
2 1
2 1
1 1
2 1
1 2
2 2
2 2
2 1
2 1
2 1
2 2
2 1
1 2
1 1
2 1
2 1
2 2
2 1
2 1
2 2
1 1
1 2
1 2
2 2
2 2
2 1
2 1
1 2
1 1
2 2
1 2
2 1
2 2
1 1
1 2
2 2
1 1
2 2
1 1
2 2
1 2
2 2
1 2
2 1
1 1
2 2
1 1
1 1
1 2
1 1
1 2
2 2
2 1
2 1
1 1
2 2
2 2
2 1
2 1
1 2
2 2
1 1
1 1
1 2
1 1
1 2
1 1
2 2
2 2
2 1
2 2
1 1
1 2
1 1
2 1
2 2
1 2
1 2
2 2
1 1
1 2
1 2
1 1
2 2
1 1
2 1
1 1
1 2
1 1
1 2
2 1
1 2
1 1
2 1
1 2
2 1
1 1
2 1
1 1
2 2
2 2
2 2
1 1
1 2
1 2
2 2
2 1
2 1
2 1
2 2
2 1
1 2
2 2
2 2
2 1
1 2
1 2
1 2
2 1
1 2
1 2
2 1
2 1
1 2
1 1
1 2
1 1
2 2
1 2
2 1
2 2
1 2
2 1
1 2
2 2
2 2
2 2
2 2
2 2
1 1
2 1
1 2
1 2
2 2
2 1
1 2
1 1
1 1
2 1
1 2
2 1
2 2
1 1
2 1
1 2
1 2
2 1
1 2
2 2
2 1
2 1
2 1
2 1
1 1
2 1
1 1
1 2
2 1
1 1
2 1
1 1
1 2
1 1
2 1
2 2
2 2
2 1
1 1
1 1
2 1
1 2
2 2
1 2
1 1
2 2
1 2
1 2
1 1
2 2
2 1
2 1
1 2
1 1
2 2
2 1
1 2
2 1
1 2
2 2
2 1
1 1
2 2
1 2
1 1
1 1
1 2
1 1
2 2
2 1
2 1
2 2
1 1
2 2
2 2
1 1
2 2
1 2
2 1
2 2
1 2
1 2
1 1
2 1
1 2
2 2
2 1
2 1
2 1
2 2
1 2
2 1
2 2
2 2
2 2
2 2
2 1
1 2
2 1
1 1
1 1
2 1
2 1
1 2
1 1
1 1
2 2
1 1
2 2
2 1
1 1
2 1
2 2
2 2
2 2
2 1
2 1
1 1
1 1
1 2
2 2
1 2
2 1
1 2
2 2
2 1
1 2
1 2
2 1
1 2
1 2
2 2
2 2
2 1
1 2
1 2
1 2
1 2
2 2
1 2
2 1
2 1
2 2
2 2
2 1
2 2
1 2
2 1
1 1
2 1
1 2
2 2
2 2
1 1
1 1
1 2
1 2
1 2
2 1
1 2
2 2
1 1
1 2
1 1
2 1
1 2
1 1
2 1
2 2
2 1
2 1
1 1
2 2
1 1
2 1
1 1
2 1
2 2
2 2
1 2
1 2
2 2
1 1
1 2
2 1
2 1
2 1
2 2
2 2
2 2
2 1
2 1
1 1
1 1
1 2
2 2
1 1
2 2
2 2
1 2
2 2
1 2
1 2
2 1
1 2
2 1
2 2
2 1
1 1
2 1
1 2
1 1
2 1
2 1
2 1
2 1
2 1
1 1
2 2
2 2
2 2
1 1
1 2
2 1
2 1
1 2
2 2
1 1
2 2
2 2
1 1
1 1
2 2
2 2
1 2
2 1
2 2
1 1
1 2
1 1
1 1
1 1
1 1
2 1
1 2
1 1
1 1
1 1
1 2
2 1
1 1
1 2
2 1
1 2
2 1
2 2
1 1
1 2
1 1
1 1
1 1
2 2
2 2
2 1
2 1
1 1
2 1
2 1
2 2
2 1
1 1
2 1
1 1
1 2
2 1
1 1
2 2
2 1
1 2
1 2
2 2
2 2
1 1
2 1
2 2
1 1
2 1
2 2
2 1
1 2
2 1
1 1
2 2
1 1
1 2
2 2
2 2
2 2
2 1
1 2
1 2
2 1
1 2
2 1
1 2
1 2
1 2
2 2
1 1
2 1
2 2
1 2
2 2
2 1
1 1
1 1
1 2
2 1
2 2
1 1
1 1
2 2
2 1
2 2
1 1
2 1
2 1
1 1
1 2
1 1
2 1
1 1
2 2
2 1
2 2
2 2
1 1
1 1
1 1
2 1
1 2
1 2
2 2
1 2
1 1
1 2
1 1
1 1
1 1
1 1
1 1
2 1
1 1
2 1
2 2
2 1
2 2
2 1
1 1
1 1
2 2
1 1
1 2
1 2
1 2
1 1
1 2
2 1
1 1
2 1
1 1
2 1
2 1
2 2
1 1
1 1
2 2
1 2
1 2
2 1
1 2
2 1
2 1
2 2
1 2
2 1
2 1
1 2
1 1
2 1
1 2
2 1
2 1
2 2
2 2
1 1
2 2
1 2
1 2
2 1
1 1
1 2
2 1
1 1
1 2
1 2
1 2
2 2
1 2
2 1
2 1
2 1
1 1
1 2
1 2
2 2
1 1
2 1
2 1
1 2
2 2
1 2
1 1
2 2
1 2
2 2
1 1
1 2
2 1
1 1
2 1
1 1
2 1
2 2
2 1
2 2
1 1
1 1
2 1
2 1
2 2
1 1
1 1
2 2
2 2
2 1
2 2
2 2
2 1
1 2
2 1
2 1
1 2
1 2
2 2
2 2
1 1
1 1
2 2
2 2
2 1
1 2
2 1
2 1
1 2
2 2
2 1
1 1
1 2
2 1
2 2
1 2
2 2
2 2
1 1
2 1
1 2
2 2
1 1
2 2
1 2
1 2
2 1
1 1
2 1
2 2
1 2
1 1
1 2
1 1
1 2
1 2
2 1
2 2
2 1
1 2
1 1
2 2
1 1
2 1
1 1
2 2
1 1
1 1
1 2
1 2
1 1
1 2
1 1
1 2
2 1
1 1
2 2
2 1
2 2
2 1
1 2
1 1
1 2
2 2
2 2
2 2
1 2
1 1
2 1
2 1
2 1
1 2
2 2
1 2
2 1
2 1
1 2
1 1
1 2
1 1
2 1
2 2
2 2
2 1
2 2
1 2
1 1
1 1
1 1
2 2
1 2
1 1
1 1
2 2
1 1
2 2
1 2
1 2
2 2
1 2
2 2
2 1
2 1
1 2
2 2
1 2
2 2
1 2
2 2
1 1
2 1
1 1
1 2
2 1
2 1
1 1
2 1
1 2
1 1
2 2
2 2
2 1
2 2
1 1
1 2
1 1
2 1
1 1
1 2
1 1
2 2
1 1
1 1
2 1
2 2
1 2
1 1
1 2
2 1
1 2
2 2
1 1
1 2
2 2
1 2
2 1
1 1
2 1
1 1
2 1
1 2
1 2
2 2
2 2
2 2
2 2
2 1
1 2
2 2
2 2
2 2
1 2
2 2
2 2
1 1
1 1
1 2
1 1
1 1
1 1
2 2
2 1
2 1
1 2
1 1
2 1
2 1
2 1
1 1
1 1
2 2
1 2
2 1
2 1
2 2
1 2
1 1
2 2
1 1
2 1
1 2
1 1
2 2
1 2
2 1
1 2
1 2
2 1
1 1
1 2
1 2
2 2
1 1
2 2
2 1
1 2
2 1
1 2
1 1
2 1
2 2
1 1
2 1
2 2
1 1
1 2
2 1
2 1
2 2
2 1
1 2
1 1
2 2
1 1
1 1
1 1
1 1
1 1
1 1
1 2
2 1
1 2
1 2
1 1
2 1
2 2
2 2
2 2
2 1
2 2
1 2
1 1
1 1
1 1
2 1
1 1
2 2
2 1
1 1
1 1
2 2
2 2
2 1
1 2
1 2
2 2
2 2
1 1
2 1
1 1
1 2
1 1
1 2
2 2
1 1
2 2
1 1
1 1
2 2
1 1
1 1
2 2
1 2
1 1
2 2
1 1
1 2
1 2
1 2
2 2
2 2
2 2
1 1
2 1
2 1
1 2
1 1
2 1
1 1
1 2
1 1
1 2
1 1
1 2
1 1
2 2
1 1
2 1
2 1
1 1
2 2
2 1
2 1
2 2
1 1
2 1
2 1
1 2
2 1
1 1
2 2
2 2
1 2
1 1
2 2
2 1
2 1
1 1
2 1
1 1
1 1
2 1
2 1
1 1
1 1
2 1
1 1
2 2
2 2
1 2
1 2
2 2
2 2
2 2
1 1
1 2
1 2
2 1
2 2
1 2
1 2
1 1
1 1
2 1
1 1
2 1
2 2
1 1
2 1
2 2
1 2
1 2
2 2
1 2
1 1
1 1
2 2
2 2
1 1
1 1
1 2
2 2
1 1
1 2
2 1
1 1
2 1
2 1
1 2
1 2
2 1
2 1
1 2
2 2
2 1
2 1
1 1
1 1
1 2
1 2
1 2
1 1
1 2
1 2
2 2
1 1
2 1
2 1
2 1
1 2
2 1
1 2
1 2
2 2
1 2
1 2
1 2
1 2
1 1
1 1
1 1
1 2
2 1
1 1
1 1
1 2
1 2
2 2
2 1
2 2
1 1
1 1
1 2
1 1
1 1
2 2
2 1
2 2
2 1
2 1
2 2
1 1
2 2
1 2
2 1
1 1
1 1
2 1
2 1
2 1
1 1
2 2
1 1
2 2
2 1
2 1
2 2
1 1
1 1
2 1
2 1
1 2
1 2
1 2
2 1
1 1
1 1
1 1
2 1
1 2
2 2
1 2
2 2
1 2
2 1
2 1
1 2
1 2
1 2
2 2
1 2
2 1
1 1
1 1
2 1
2 1
2 1
2 1
1 1
1 1
1 1
2 1
1 2
2 1
1 1
1 1
2 1
1 2
1 2
2 1
1 2
2 1
1 1
1 1
1 1
2 1
2 2
1 1
1 2
1 2
1 2
1 2
1 2
2 2
2 2
2 2
2 2
1 2
2 1
2 2
2 2
2 2
1 2
2 1
1 1
2 1
1 2
1 1
2 1
1 1
1 1
1 2
1 2
2 1
2 2
1 2
2 2
1 2
2 2
1 2
1 2
2 1
2 1
2 1
2 2
2 2
2 1
2 2
1 1
1 1
2 2
2 2
1 2
2 2
1 1
2 1
1 1
1 1
1 2
2 2
2 2
1 1
1 2
1 2
2 1
2 2
2 2
1 1
2 2
1 2
2 2
2 1
2 2
1 1
2 1
2 2
1 2
1 1
2 2
1 2
2 1
1 2
2 1
2 2
2 2
1 2
2 2
2 2
1 2
1 2
2 1
2 2
2 1
2 2
1 2
1 1
2 2
2 2
2 1
1 1
2 2
2 2
2 2
2 2
2 1
2 1
1 2
1 2
2 1
1 1
1 2
2 2
1 1
1 2
1 1
2 1
1 2
2 1
1 1
1 1
1 1
2 2
2 1
1 1
2 1
2 2
2 2
2 1
1 2
2 2
1 2
1 1
1 1
1 2
2 2
2 1
2 1
2 2
1 2
1 2
1 1
2 1
2 1
1 2
2 2
2 2
1 1
2 2
1 1
1 1
2 1
2 1
1 1
1 1
2 2
1 1
1 2
1 2
1 2
1 1
1 1
2 2
1 2
1 2
1 2
2 2
1 2
1 2
2 1
1 1
1 2
2 1
1 1
1 2
1 1
1 2
1 2
1 1
1 1
1 1
2 1
1 1
1 1
2 2
1 2
2 1
1 2
1 1
1 2
1 1
1 2
1 2
2 1
1 1
2 1
1 1
2 1
2 2
2 2
2 2
2 1
2 1
1 1
1 2
2 2
1 2
2 2
1 2
2 2
2 1
2 1
1 2
2 1
2 2
2 1
1 1
2 1
2 1
2 1
1 2
1 1
1 1
1 1
2 2
1 2
1 1
2 1
1 1
1 2
1 1
1 1
1 2
2 1
1 1
2 1
2 2
2 2
1 2
2 2
1 1
2 2
2 2
1 2
1 1
2 1
1 2
1 1
2 1
1 2
1 2
1 1
1 1
2 2
2 1
1 1
2 2
2 2
1 2
2 1
1 2
1 1
2 2
1 1
1 1
1 1
1 1
2 2
2 1
2 1
2 2
2 1
2 1
2 2
2 1
2 2
1 2
2 1
1 1
1 1
2 1
1 1
2 2
1 1
1 1
1 2
2 2
1 2
1 1
1 1
2 1
2 1
2 2
1 1
1 1
1 2
1 1
1 1
1 2
2 2
1 2
1 2
1 2
2 2
1 1
1 2
1 2
1 2
1 2
1 2
1 2
2 2
2 1
2 1
2 1
1 1
1 2
2 1
1 1
2 1
2 1
1 1
1 1
1 2
1 1
2 2
1 2
1 1
1 1
1 2
1 1
1 1
2 1
2 1
1 2
2 2
2 1
2 1
2 1
1 2
1 1
1 2
1 2
2 2
1 1
1 1
1 1
1 1
1 1
1 2
1 1
1 2
2 1
1 2
1 2
2 2
1 2
2 1
2 1
1 2
1 1
1 2
2 2
2 1
1 1
2 2
2 1
1 1
1 1
2 1
2 1
2 2
2 1
2 2
2 1
1 1
1 1
1 2
2 1
1 1
2 2
2 1
1 2
2 1
1 2
2 2
1 1
1 2
2 2
1 1
1 2
2 2
2 1
1 1
1 1
1 2
2 2
2 1
1 2
2 2
2 2
2 2
2 2
2 2
2 2
1 1
2 2
2 2
2 2
2 1
1 2
2 1
1 1
1 2
1 1
1 1
2 2
1 2
2 1
1 2
2 2
1 1
2 2
1 1
2 1
2 1
2 1
1 1
2 1
1 1
1 1
1 1
1 1
1 2
1 1
1 1
2 2
2 1
2 2
1 2
2 2
2 2
1 2
2 2
1 1
1 1
2 1
1 1
1 2
1 2
2 1
2 2
2 1
1 1
2 2
1 1
2 2
2 2
1 1
2 1
1 2
2 1
1 1
2 1
2 1
2 1
1 2
2 2
2 2
2 1
2 2
2 1
1 2
2 2
2 1
1 2
2 2
2 1
1 1
1 1
2 2
2 2
1 2
2 1
1 1
1 2
1 1
1 1
1 1
1 1
2 1
2 1
2 2
2 2
1 1
1 2
1 2
2 2
2 2
1 2
2 1
2 1
2 2
1 2
1 1
2 2
2 2
1 2
2 2
2 1
1 1
1 2
1 2
1 2
1 2
1 1
2 1
2 2
2 1
2 1
1 2
1 2
1 1
2 2
1 1
2 2
2 2
1 2
1 1
1 2
2 1
1 2
2 2
2 1
1 2
1 2
2 1
1 2
1 2
2 2
2 1
2 1
2 1
2 2
1 2
1 1
2 2
2 2
1 1
2 1
2 2
1 2
2 2
1 1
2 2
1 1
2 2
1 2
2 1
2 2
1 1
2 1
1 2
2 2
2 2
2 2
2 2
1 1
1 2
1 2
2 2
1 2
2 1
1 2
2 1
1 2
1 1
1 1
2 1
1 2
2 2
1 2
1 2
1 1
1 2
1 2
1 1
1 1
1 1
1 2
2 2
1 2
1 1
1 2
1 1
2 2
1 2
2 1
1 2
2 2
1 2
2 2
1 2
1 2
1 2
1 1
2 1
1 2
2 2
2 2
1 2
1 1
2 2
2 1
2 2
1 1
1 1
2 1
2 1
2 1
2 1
1 2
2 2
2 2
1 1
1 1
1 1
1 1
1 1
2 2
1 1
1 2
1 2
2 2
1 1
1 1
1 2
2 2
1 2
2 2
2 1
2 2
1 1
1 1
1 1
2 1
1 1
1 2
2 1
1 2
2 2
1 1
2 1
2 2
2 1
1 1
2 2
2 1
1 1
1 2
2 1
1 1
1 1
1 1
1 1
1 2
1 2
2 1
1 2
1 1
2 1
2 1
1 2
1 2
2 1
1 1
2 1
1 1
1 1
2 2
2 1
2 1
2 2
2 2
2 2
1 2
2 1
1 1
2 1
1 2
2 2
2 1
2 1
2 2
2 2
1 2
1 1
2 1
2 2
1 1
2 1
2 1
2 2
2 1
1 2
2 1
1 2
1 1
1 1
2 1
1 2
2 2
2 2
2 1
2 2
1 2
2 1
2 2
2 1
1 2
1 2
2 1
2 2
2 1
2 1
1 1
2 2
2 1
1 2
1 1
1 1
1 2
1 2
1 2
1 2
1 1
2 2
1 1
2 1
1 1
2 2
2 2
1 1
1 2
2 1
1 2
2 2
1 1
1 1
2 2
2 2
2 2
2 1
2 2
1 2
1 1
1 2
2 1
1 1
2 1
2 2
1 1
2 1
2 1
2 2
2 2
1 1
1 2
1 1
2 1
1 2
1 1
1 2
1 1
2 1
1 2
1 2
2 1
2 1
2 2
2 1
1 2
1 1
2 2
2 2
1 1
1 2
2 2
1 1
1 1
2 2
1 1
2 2
2 1
2 2
2 2
1 1
2 2
2 2
1 2
1 2
1 2
2 1
2 2
1 2
1 1
1 1
1 2
2 2
1 1
2 2
2 1
1 1
2 2
2 1
2 2
1 1
2 1
1 2
2 1
1 2
1 2
2 1
1 1
1 2
2 2
1 1
2 2
1 2
2 2
1 2
2 2
2 1
1 2
2 2
1 1
2 1
2 2
2 2
2 2
2 2
1 1
2 2
2 1
1 2
1 1
2 2
2 2
2 1
2 1
1 1
2 1
2 2
1 2
2 2
2 1
2 2
1 1
1 2
2 1
1 2
1 1
1 2
1 1
1 1
2 2
2 2
2 2
2 1
1 2
2 1
1 1
2 2
2 2
2 2
2 2
1 1
2 2
2 1
1 2
2 2
2 1
1 2
1 1
2 2
2 2
2 2
1 1
2 1
2 1
2 1
2 2
2 2
1 1
1 2
1 1
2 1
2 1
2 2
1 2
1 2
2 2
1 2
2 2
1 1
2 1
2 1
1 2
2 2
1 2
1 2
2 1
1 2
1 2
1 1
1 2
2 1
2 2
2 2
2 2
2 2
1 2
1 1
1 2
2 1
1 1
1 2
1 1
2 2
1 2
1 1
2 2
2 2
1 2
2 2
1 2
1 1
2 1
1 2
2 2
2 2
2 2
2 2
2 1
1 2
2 1
2 1
1 2
1 2
1 2
1 2
1 2
2 2
2 2
1 1
1 2
1 1
2 2
1 2
1 1
2 1
1 1
1 1
1 1
2 1
2 2
2 2
2 2
1 1
1 1
1 2
1 1
1 1
2 1
1 1
1 1
1 2
1 2
1 1
2 2
2 1
1 2
1 1
2 1
2 2
1 1
2 1
2 2
1 1
1 1
1 1
1 2
2 2
2 2
2 1
2 2
1 2
1 2
2 2
2 1
1 1
1 2
1 1
1 1
1 2
2 2
1 2
1 2
1 1
2 2
1 1
2 1
1 1
2 1
2 1
1 1
1 2
2 2
1 1
1 1
2 2
1 1
1 1
1 1
2 2
1 2
1 1
1 2
1 2
1 2
2 1
2 2
2 1
2 2
1 1
2 2
2 1
1 1
2 2
1 2
1 1
2 1
1 1
2 1
2 1
1 2
2 2
1 2
2 2
2 2
1 1
1 2
1 2
2 2
2 2
2 2
1 2
2 1
2 2
2 2
2 1
2 1
2 2
1 1
1 1
1 1
1 1
1 1
2 1
2 2
2 1
2 1
2 2
2 1
1 1
1 1
2 2
2 1
1 1
2 1
1 2
2 2
2 1
1 1
2 2
1 2
1 1
2 2
2 2
2 1
2 1
2 1
1 1
1 2
1 2
2 1
1 2
2 1
2 2
1 2
2 2
1 1
1 1
2 2
2 1
1 2
2 1
2 2
2 1
2 1
1 1
1 1
2 2
2 2
2 1
2 1
1 2
2 1
2 1
2 1
1 2
1 1
2 1
1 1
2 2
1 2
2 1
2 1
1 2
1 1
1 2
2 2
2 1
1 1
1 2
1 2
2 2
1 1
2 2
2 2
1 1
1 1
2 1
1 2
1 2
2 2
1 2
1 1
2 2
2 1
2 1
2 1
2 2
1 1
1 1
2 2
1 1
1 2
2 2
2 2
1 2
2 2
2 2
2 2
1 2
2 1
2 1
2 2
1 2
1 2
2 1
2 1
1 1
1 1
1 2
2 2
2 1
2 2
1 2
1 2
2 2
2 2
1 2
1 2
1 1
2 1
1 2
2 2
1 2
2 2
1 1
1 1
1 2
2 1
2 1
2 2
2 2
1 2
2 2
1 2
1 2
1 1
1 1
2 1
1 1
1 1
2 1
2 1
1 1
2 2
1 1
2 2
1 2
2 1
2 1
2 2
2 2
2 1
1 1
2 1
2 2
1 2
2 1
1 2
1 1
2 1
1 2
1 1
1 1
1 2
2 2
1 1
1 1
2 2
2 2
1 1
1 1
1 2
2 1
1 1
2 1
2 2
1 2
2 1
1 1
2 1
1 2
2 1
1 1
2 1
1 1
1 1
2 2
1 2
2 1
2 2
1 1
1 2
2 2
1 2
1 2
1 2
1 2
1 1
1 1
2 2
1 2
1 1
2 2
2 2
1 1
1 2
1 1
2 2
2 2
2 1
1 1
2 1
2 1
1 1
2 2
1 1
2 1
2 1
2 1
1 2
2 2
2 2
1 2
2 1
2 1
2 2
2 2
2 1
1 1
1 1
1 2
2 2
2 2
1 1
1 2
1 1
2 1
2 1
2 2
1 2
2 2
2 1
1 2
1 1
1 2
1 2
1 1
1 2
1 1
2 1
2 1
2 1
2 1
2 2
1 1
1 2
1 1
2 1
2 1
2 1
1 1
1 2
1 1
2 2
2 1
2 1
2 1
2 1
2 2
2 2
1 2
2 1
1 2
1 2
2 1
2 1
2 1
2 1
2 1
2 2
1 1
1 2
2 2
2 1
2 1
2 1
2 1
2 1
2 1
2 2
1 2
2 2
1 1
1 2
1 2
2 1
2 1
1 1
1 2
1 1
2 2
1 2
1 1
2 1
2 1
2 1
1 1
2 2
1 1
1 1
2 1
2 2
2 2
2 2
1 2
2 2
1 2
1 2
2 2
1 1
2 1
1 2
2 1
2 2
2 2
1 1
1 1
1 1
2 2
2 2
1 2
1 1
2 1
1 2
2 2
1 1
2 2
1 2
1 2
1 1
1 1
2 2
2 1
1 1
2 1
1 2
1 2
1 2
2 2
2 1
1 2
1 1
2 2
1 2
1 2
1 1
2 2
1 2
2 1
2 1
1 2
1 2
1 1
2 1
1 1
2 1
2 2
2 1
2 2
1 2
1 2
2 2
2 2
2 1
2 2
2 2
1 2
1 2
1 2
2 1
2 2
1 1
1 1
1 2
1 2
2 1
2 1
2 2
1 2
1 2
2 2
2 1
1 2
2 1
1 1
2 1
1 2
2 1
1 2
2 1
2 2
2 2
2 2
1 1
1 1
2 1
2 1
2 2
1 1
1 1
1 1
1 2
1 2
1 2
1 1
1 1
1 1
1 1
2 2
1 1
2 1
1 1
2 1
1 1
1 1
1 1
1 2
1 1
2 2
2 2
2 2
2 2
2 1
2 1
1 1
1 2
1 2
2 1
1 2
1 2
1 1
1 2
1 1
1 1
1 2
2 1
1 1
2 1
1 1
1 1
1 1
1 1
1 2
2 2
2 2
2 2
1 2
2 2
1 1
2 1
2 1
1 1
1 1
2 2
1 2
1 1
1 1
2 2
1 1
2 2
1 1
2 2
2 1
2 1
1 2
2 1
2 2
2 2
1 2
1 1
2 1
1 2
2 2
2 1
2 1
1 1
1 1
1 2
2 1
2 1
1 1
2 1
1 2
1 2
1 1
2 1
2 2
2 1
2 1
1 2
2 2
2 2
1 1
1 2
2 2
2 1
1 1
2 2
1 2
1 2
2 2
2 2
2 1
1 2
2 2
1 2
1 2
2 2
1 1
1 2
2 1
1 2
1 1
2 2
1 2
2 2
1 1
1 2
1 1
1 2
2 1
2 2
2 2
2 2
2 1
1 1
1 2
2 1
1 2
2 1
1 1
2 2
1 2
1 1
2 1
2 1
2 1
1 1
2 2
1 2
2 1
2 1
2 1
1 2
1 2
1 1
2 2
1 1
2 2
2 1
2 1
1 1
2 1
2 1
2 1
2 1
1 1
1 1
1 1
1 1
1 2
1 1
2 2
2 1
1 2
2 2
2 1
2 1
2 1
1 2
2 1
2 2
2 1
2 1
1 2
1 1
2 2
2 1
1 2
2 2
2 1
1 1
1 2
2 1
1 1
2 2
1 1
1 2
1 2
1 1
2 2
2 1
2 2
2 1
2 2
1 1
1 1
2 2
1 1
1 2
2 2
2 1
2 2
1 2
2 2
1 1
2 2
2 1
1 2
2 2
2 2
2 1
2 1
1 2
2 1
1 1
2 2
2 1
2 1
2 1
2 1
2 2
2 2
1 1
2 2
1 2
2 1
2 2
2 1
2 1
1 1
2 1
2 2
1 1
1 2
1 1
1 1
1 2
1 1
2 1
2 2
2 1
1 2
2 2
2 1
1 1
2 2
1 1
2 1
2 1
2 1
2 1
2 1
2 1
1 2
1 1
2 2
2 2
2 2
2 1
1 2
2 1
1 1
2 1
1 1
1 2
1 2
2 1
1 2
2 2
1 2
2 1
2 2
1 2
2 2
2 2
1 1
1 1
1 2
1 1
2 2
1 1
1 1
2 1
2 2
2 1
2 1
2 2
2 1
2 2
1 1
2 1
2 2
1 2
2 1
2 2
2 2
1 2
2 2
2 1
2 1
2 1
1 2
2 2
2 1
1 1
2 2
2 2
2 2
2 1
1 1
1 1
2 1
1 1
2 2
2 1
1 1
2 2
2 2
1 1
1 2
2 1
1 2
1 2
2 1
1 2
1 2
1 1
2 1
2 1
1 1
1 1
1 1
1 1
1 2
1 2
2 2
1 2
2 1
1 2
2 2
2 2
2 1
1 2
1 1
2 1
2 1
1 2
2 2
1 2
2 1
1 2
1 2
1 1
2 2
1 2
1 1
2 1
1 2
2 1
1 2
2 2
1 1
2 1
1 1
1 1
1 1
1 1
2 1
1 1
2 2
1 1
1 1
1 2
2 1
2 1
1 1
2 1
2 2
2 1
2 1
2 2
1 1
2 1
1 1
2 1
1 1
1 2
1 2
1 1
1 1
1 1
2 2
2 2
2 1
1 2
2 2
1 2
2 1
1 1
2 2
1 1
1 1
1 1
1 2
2 2
2 1
1 1
1 1
2 2
1 1
1 1
2 1
2 2
2 2
2 2
2 1
2 1
1 2
1 1
1 1
2 2
1 2
2 1
2 2
1 1
1 1
2 1
2 1
1 2
1 1
2 2
1 2
2 1
2 2
2 2
2 2
2 2
1 2
1 1
1 2
2 1
2 2
1 2
2 1
1 2
1 1
1 1
1 2
1 2
1 2
2 1
1 2
2 1
2 1
2 1
2 2
2 2
2 2
2 1
2 2
2 1
2 1
2 1
1 1
2 1
2 2
2 2
1 2
2 1
1 2
1 2
1 1
2 2
1 2
2 2
1 1
2 1
1 1
1 1
1 2
2 2
1 1
2 1
2 1
1 1
2 2
2 1
2 1
2 1
1 2
1 1
2 1
1 2
1 1
1 2
2 1
2 2
2 1
2 1
1 2
2 2
1 1
2 2
1 2
2 2
2 2
1 2
2 2
2 1
1 1
1 2
2 2
2 2
2 2
2 1
1 2
1 1
1 1
1 2
1 2
1 2
1 2
1 2
2 1
2 2
2 2
1 1
2 1
1 1
1 1
2 2
2 1
2 2
2 1
2 2
1 2
2 2
1 2
1 2
1 2
2 2
2 1
1 2
1 2
1 2
1 1
1 1
2 1
1 2
2 1
2 1
1 2
2 2
2 2
2 2
2 2
1 2
1 2
1 2
2 1
2 1
1 2
2 2
2 1
1 1
1 2
1 2
1 2
2 2
2 1
2 1
2 2
2 2
2 1
2 2
1 2
2 2
2 1
1 2
1 1
2 2
2 1
2 1
1 1
1 2
1 1
2 1
2 1
2 1
2 1
2 2
1 2
2 2
1 1
1 2
2 1
2 1
2 1
2 1
1 2
1 1
2 2
1 1
1 2
2 2
2 1
1 1
1 2
1 1
1 1
2 1
1 2
1 1
1 1
2 1
1 2
1 1
1 2
1 1
1 1
1 1
2 2
1 2
2 1
1 2
2 2
1 1
1 1
1 2
2 2
2 2
2 1
1 1
1 2
2 1
1 2
2 2
2 1
1 2
1 1
2 1
1 1
1 1
1 2
1 2
2 1
1 2
2 1
2 1
2 2
1 1
1 1
2 1
1 2
2 2
2 1
2 2
1 1
2 1
2 1
1 1
2 2
2 1
1 1
1 2
2 1
1 1
2 1
2 1
1 1
2 2
1 2
2 1
2 1
1 2
1 1
1 2
2 2
1 1
1 1
1 2
2 1
2 2
2 2
1 1
2 2
2 1
1 2
1 1
2 2
1 2
1 1
1 1
2 2
2 2
1 2
1 2
1 2
2 2
2 1
2 2
2 1
1 2
2 2
1 1
2 2
2 2
1 1
1 1
1 1
1 2
2 1
2 1
2 2
2 2
2 2
1 1
1 2
1 2
2 2
2 1
2 2
1 1
1 2
2 1
2 2
2 1
1 2
1 1
1 1
1 1
2 1
2 2
1 2
1 2
2 2
2 1
1 1
1 2
2 1
1 2
2 2
1 2
2 2
1 2
2 2
1 1
2 1
2 1
2 2
1 2
1 2
2 2
1 2
1 1
2 2
2 1
1 1
2 1
2 2
1 1
1 1
2 1
1 2
2 2
1 2
2 2
1 1
2 1
1 2
1 1
1 1
2 2
1 2
1 2
1 2
1 2
2 2
1 1
2 2
1 1
2 2
1 1
2 1
1 2
1 1
2 1
2 2
1 1
2 1
1 2
2 1
2 1
2 2
2 2
2 2
1 1
2 2
2 1
1 1
1 2
1 2
2 2
1 1
2 2
2 1
2 2
2 2
1 1
1 1
1 1
2 2
2 2
1 1
2 1
1 1
1 1
1 1
2 1
2 1
2 1
2 1
1 1
1 2
2 1
1 2
1 2
1 1
1 1
1 2
2 2
2 2
1 1
1 2
2 2
1 2
2 1
2 2
2 2
1 2
2 2
1 1
1 2
1 1
1 2
2 1
1 2
1 2
2 1
1 2
1 1
2 2
1 1
2 1
1 2
1 2
2 1
2 2
1 1
2 1
2 1
2 2
2 2
2 2
2 2
2 2
1 1
2 2
2 2
2 2
1 2
2 2
1 2
1 2
1 2
2 1
2 2
1 2
1 1
1 2
1 2
1 2
2 1
1 2
1 1
2 1
2 1
1 2
1 2
2 2
2 1
2 2
2 1
1 2
1 1
2 2
2 1
1 2
1 2
2 2
1 2
1 2
1 2
1 2
1 1
2 1
2 2
1 1
2 1
2 2
2 1
2 2
2 2
1 1
1 1
1 2
1 2
1 1
2 2
2 1
1 1
2 2
1 1
2 2
2 1
2 1
2 2
2 2
1 2
2 1
1 1
1 1
1 1
2 1
2 2
2 2
2 2
2 1
1 2
1 2
1 2
2 1
1 2
1 1
2 1
1 1
2 1
2 2
1 2
2 1
1 1
2 1
1 1
2 2
2 2
2 2
1 1
1 2
2 2
2 2
2 2
1 1
2 1
2 2
2 1
1 1
2 2
1 1
1 2
1 1
2 2
1 1
2 1
2 2
1 2
1 1
2 1
1 1
1 2
2 1
2 2
1 1
1 2
1 1
1 2
1 1
1 2
1 2
2 2
2 1
2 1
2 1
2 1
1 1
2 1
1 2
2 2
2 2
1 1
2 1
2 2
2 2
1 1
2 2
1 2
1 1
2 2
2 2
1 1
1 1
2 2
1 1
2 1
1 2
2 1
2 2
2 1
1 1
1 1
1 2
1 2
2 2
1 1
1 1
1 2
1 1
2 1
1 2
1 2
1 2
1 2
2 1
1 2
2 1
1 2
1 1
1 2
2 2
1 1
2 2
1 2
1 2
1 1
2 1
2 2
2 1
1 1
1 2
2 2
1 2
2 1
2 2
2 2
2 2
2 1
1 1
1 2
1 1
2 2
1 2
1 1
2 2
2 2
1 1
1 1
1 2
2 2
1 2
2 2
1 1
1 1
1 1
1 1
1 1
1 2
2 2
1 2
1 1
2 2
1 2
1 1
2 1
1 1
1 1
1 1
2 2
2 2
1 1
1 1
2 1
1 2
2 2
2 2
2 2
2 1
1 2
2 1
1 1
1 1
2 2
1 1
1 2
1 2
2 2
2 1
2 2
2 2
1 2
2 1
1 2
2 2
2 2
2 2
2 1
2 1
1 1
1 1
2 2
2 2
2 1
2 1
2 1
2 1
2 1
1 1
2 1
1 1
2 1
1 2
1 2
1 1
1 1
2 2
1 1
1 2
2 1
1 1
1 1
1 2
1 2
2 2
2 2
1 1
1 2
1 2
1 1
2 1
2 2
2 2
2 2
1 1
1 1
2 1
2 2
2 2
2 2
1 1
1 1
2 1
1 1
2 1
2 1
2 1
1 2
1 1
1 1
2 2
1 2
2 2
2 1
1 1
1 1
1 2
2 1
1 2
2 2
1 1
1 2
2 1
2 1
2 1
2 2
1 2
1 2
1 2
1 2
2 2
1 2
1 1
1 1
2 2
2 2
1 2
1 1
2 2
1 1
1 1
1 2
2 2
1 2
2 2
2 1
1 2
1 2
2 2
2 1
1 1
2 1
1 1
1 1
1 2
1 1
1 2
1 2
2 1
1 2
1 2
1 1
2 2
1 2
2 1
1 2
2 2
1 2
1 2
1 1
2 1
2 2
2 2
2 1
2 2
1 1
2 2
1 1
2 2
2 2
2 1
2 2
1 2
1 2
1 1
2 2
2 1
2 1
2 2
1 2
1 2
2 1
1 2
1 2
2 2
1 2
1 2
2 1
1 1
2 2
1 1
1 1
1 2
1 1
1 2
1 1
1 1
1 2
1 2
1 2
1 2
2 1
1 2
1 1
2 2
1 2
2 1
1 2
2 2
1 1
2 1
2 1
2 1
1 2
2 1
2 2
1 1
2 2
1 2
2 2
1 2
2 1
2 2
2 2
2 1
1 2
1 1
2 1
1 2
2 1
2 2
1 1
2 2
2 1
2 2
1 2
2 1
2 2
1 1
2 2
1 1
2 1
2 1
2 1
2 1
2 1
2 1
2 1
1 2
2 2
1 2
1 2
2 2
2 1
1 1
2 1
2 2
1 1
1 2
2 1
1 1
2 1
2 1
2 2
2 1
2 1
1 1
1 1
2 2
2 2
1 2
1 2
2 1
1 1
1 1
1 2
1 2
1 1
1 2
2 1
2 1
1 1
1 2
2 2
1 1
2 2
1 2
2 1
2 2
1 2
2 2
2 2
1 2
1 1
1 1
1 1
1 1
1 2
2 1
1 1
1 2
1 1
2 1
1 2
1 2
2 1
1 1
2 2
2 1
2 1
2 2
2 1
2 2
2 1
2 1
1 2
1 2
2 2
1 2
1 2
1 2
1 2
2 2
1 1
2 2
2 2
1 1
2 1
1 2
1 1
2 1
2 2
1 2
2 1
2 2
1 1
1 2
2 1
2 1
1 2
1 1
2 1
2 1
2 2
1 2
1 2
1 2
1 2
2 2
2 1
2 2
2 2
1 2
1 1
2 1
2 2
1 2
2 2
2 2
2 1
2 2
2 2
1 2
2 2
1 2
1 1
2 1
2 2
1 1
1 1
2 2
1 2
1 2
2 1
2 1
2 1
1 2
1 1
2 1
1 1
1 2
1 2
1 2
1 1
2 2
2 2
2 2
2 2
1 2
1 2
2 1
1 2
2 2
1 2
1 2
2 2
2 2
2 1
1 2
2 2
1 1
1 1
1 1
2 2
2 2
1 1
2 1
2 2
1 2
2 1
1 1
2 2
1 2
1 1
2 2
2 1
2 1
2 2
2 1
2 1
2 1
2 1
1 1
2 2
2 1
2 1
1 1
1 1
2 2
2 1
2 2
1 2
1 2
2 1
1 1
2 1
2 1
1 1
2 1
2 1
2 2
2 2
2 2
2 2
2 1
2 2
2 2
1 1
2 1
1 2
2 1
2 2
2 2
1 2
2 2
2 2
2 2
1 2
2 1
1 2
2 1
1 1
2 2
1 2
1 1
1 1
2 1
1 2
1 2
2 1
1 2
2 2
1 2
1 2
1 2
2 1
1 2
2 2
2 1
1 1
2 1
2 1
1 2
1 2
1 2
2 2
1 2
1 2
2 2
1 1
2 2
1 2
1 1
1 1
1 1
2 2
1 2
1 2
2 2
1 1
1 1
2 2
2 2
1 1
2 1
1 1
1 1
1 2
1 1
2 2
2 2
2 1
2 1
1 1
1 1
2 1
2 2
1 1
2 2
2 2
1 2
2 1
1 1
2 2
1 1
1 1
2 2
1 2
1 1
1 1
1 2
1 2
1 2
2 2
2 2
1 2
2 2
2 1
2 2
2 2
2 1
1 2
2 1
1 1
1 2
2 2
2 1
2 1
2 2
1 2
2 2
1 1
2 2
2 2
2 2
2 1
1 1
1 1
1 2
1 2
1 1
2 1
1 1
1 2
2 2
2 2
2 2
1 1
2 2
1 1
1 1
2 2
2 1
1 1
1 2
1 1
1 2
2 1
1 1
2 2
2 2
1 2
1 1
2 2
2 1
1 1
2 2
2 2
2 1
2 2
1 1
2 1
1 1
1 2
1 2
2 2
2 2
1 1
1 1
1 1
1 1
1 2
2 2
1 1
1 2
2 1
1 1
1 1
1 1
2 1
1 1
2 2
1 1
2 2
2 1
2 1
1 1
2 2
2 1
1 1
1 2
2 1
2 1
2 2
2 2
2 2
2 1
2 1
2 2
1 2
1 1
1 2
2 2
1 1
2 1
2 2
2 2
1 1
2 2
1 1
2 2
1 1
2 2
1 2
1 1
1 1
2 2
2 1
2 2
2 1
2 2
1 1
2 2
2 1
1 1
2 1
2 2
1 2
2 2
1 1
1 2
1 1
1 1
1 1
2 1
2 1
1 2
1 2
1 1
2 1
1 2
1 1
1 1
1 2
2 2
1 1
1 2
2 1
1 2
1 1
2 2
1 2
1 1
2 1
1 1
2 1
1 1
2 2
2 1
2 1
2 2
1 2
2 1
2 2
2 1
1 2
1 1
2 1
2 1
1 2
1 1
2 1
1 1
1 2
1 2
1 1
1 2
1 1
2 1
2 2
2 2
2 1
1 2
2 1
2 2
1 2
2 1
2 2
1 2
1 1
2 2
2 1
2 1
1 2
2 2
1 2
2 1
1 2
2 1
2 1
1 1
1 2
2 2
1 2
1 1
1 1
2 1
2 1
1 2
2 2
2 2
1 2
1 1
1 2
2 2
1 1
1 1
2 2
2 1
2 2
2 1
2 2
2 1
2 1
1 2
2 1
1 2
1 1
1 1
1 1
2 1
2 2
2 2
1 2
2 2
2 1
1 1
2 2
2 1
1 1
1 2
1 2
1 1
2 1
1 1
2 2
2 2
1 2
1 1
1 2
2 1
1 1
1 2
1 1
2 1
2 2
1 2
1 1
1 2
2 1
2 1
1 2
2 1
2 2
1 2
1 2
2 2
1 2
1 2
1 2
1 2
1 1
2 1
1 2
2 2
2 2
2 2
2 2
1 2
2 1
2 2
1 2
1 1
1 1
2 1
2 2
1 1
1 2
2 1
1 2
2 1
1 2
2 2
1 2
2 2
2 2
1 2
2 1
1 1
1 2
2 1
1 2
2 1
2 1
2 2
1 1
1 1
2 2
2 1
1 2
2 1
1 2
1 2
1 2
2 2
1 2
1 1
2 1
1 1
1 1
1 2
2 2
2 2
1 2
2 2
1 1
2 2
2 2
2 1
2 2
1 1
1 1
2 2
2 2
2 1
1 1
2 1
2 2
1 2
1 1
2 2
2 2
1 1
2 2
2 1
2 2
2 1
2 2
1 2
1 2
2 1
1 2
1 1
1 2
1 1
1 2
1 2
2 1
1 1
1 2
1 1
1 1
1 2
2 2
1 1
2 1
1 1
2 1
1 1
1 1
1 2
2 1
1 1
1 1
1 1
2 2
2 1
1 1
1 2
2 2
2 1
1 2
1 1
1 2
1 1
1 2
1 1
2 2
1 1
1 2
1 2
1 1
2 1
1 2
2 2
1 2
1 1
2 1
1 1
2 1
1 1
2 2
1 2
2 1
1 1
2 2
2 2
2 1
1 1
1 2
1 1
1 2
1 2
2 1
2 2
2 2
2 2
1 1
2 1
2 1
2 2
1 2
1 2
2 2
1 1
2 1
2 1
2 2
2 1
1 1
1 1
1 1
2 2
2 2
2 1
2 1
1 1
1 1
1 2
2 2
1 2
1 2
1 2
2 1
1 2
2 2
1 1
2 1
2 1
2 1
1 2
2 1
1 2
1 2
2 2
1 1
1 1
1 1
2 1
1 2
2 1
2 1
1 1
2 2
2 2
2 2
1 1
2 1
1 1
1 2
2 1
2 1
1 1
2 1
1 1
1 2
1 2
2 1
2 2
2 2
1 1
1 1
1 2
1 1
1 2
2 1
1 1
2 2
2 2
1 2
2 1
2 2
2 2
1 1
2 1
2 1
2 1
1 2
2 1
2 1
1 1
2 1
1 1
2 1
2 2
2 1
1 2
2 1
1 1
1 1
2 1
2 2
1 2
1 2
2 1
2 1
2 1
2 2
2 1
1 1
2 1
1 2
1 2
1 2
1 2
2 1
1 2
1 1
1 1
1 2
1 1
1 1
1 1
1 2
1 1
2 2
1 1
1 1
2 2
2 2
2 2
2 2
2 1
1 1
1 2
2 2
2 1
1 2
2 1
1 2
2 1
1 1
2 1
2 2
1 2
2 1
1 1
2 1
1 1
1 2
2 2
2 2
2 2
2 1
1 2
1 1
2 1
2 1
2 1
1 2
2 2
2 2
1 2
1 1
2 2
1 1
2 2
1 1
1 2
1 2
2 1
1 1
1 2
2 1
1 1
1 2
2 1
1 1
1 2
2 2
2 1
2 2
2 2
2 1
1 2
2 1
2 1
1 2
1 1
2 1
1 1
2 2
2 2
1 1
2 2
2 1
1 1
2 2
1 1
1 2
1 2
2 2
1 2
1 1
2 1
2 1
1 2
2 1
1 1
1 2
2 1
1 1
1 2
1 2
1 2
1 1
2 1
2 2
1 2
2 2
1 2
2 1
2 1
1 2
1 1
2 1
1 1
2 2
2 1
2 2
2 1
2 1
1 1
2 1
1 1
1 2
2 2
1 1
2 2
2 1
1 1
1 1
1 2
1 2
1 1
2 1
2 1
2 1
2 2
1 1
2 2
1 1
1 1
1 2
1 1
2 2
2 2
2 2
2 1
2 2
1 2
2 1
2 1
2 1
1 2
1 1
1 2
1 2
2 1
1 2
2 2
1 1
2 1
1 1
2 2
1 1
2 2
2 2
1 1
2 2
2 1
1 1
1 2
1 1
2 1
2 2
1 1
2 1
1 1
2 2
2 2
2 1
1 1
2 2
1 2
1 1
2 1
1 1
1 1
1 1
2 2
1 1
2 1
1 1
2 1
2 1
2 2
2 2
1 2
1 1
2 2
1 2
2 2
1 1
2 1
2 2
1 2
2 2
2 2
1 1
1 2
2 2
1 2
2 2
1 1
1 2
2 1
1 2
1 2
1 2
1 1
1 2
2 1
2 2
2 2
2 1
2 2
1 2
1 2
2 1
1 2
1 1
2 1
1 2
1 1
1 1
1 1
2 1
1 2
2 2
1 2
2 1
2 1
2 2
1 2
2 2
1 2
1 2
1 1
1 2
2 2
1 1
2 2
1 1
1 2
2 2
2 2
2 2
2 1
1 2
2 1
1 2
2 1
2 1
1 1
1 2
2 2
1 1
1 1
1 1
2 1
1 1
2 1
1 1
1 2
2 2
1 1
2 2
1 2
2 2
1 1
2 2
2 1
1 1
2 1
2 1
1 2
2 1
2 1
2 1
2 2
2 2
1 1
2 2
1 2
2 1
2 1
1 2
1 2
2 1
2 2
1 1
1 2
1 1
1 2
1 1
2 1
1 2
1 1
1 2
1 1
2 2
2 2
1 1
1 1
1 1
2 2
1 1
2 1
1 2
2 1
1 1
2 2
2 2
2 1
1 2
1 2
1 1
1 1
1 2
1 1
2 1
1 1
1 2
1 2
1 1
1 2
2 2
2 1
1 2
2 1
1 2
2 1
1 2
2 2
1 1
1 1
2 1
2 2
2 2
1 2
1 2
1 1
2 1
1 2
2 2
1 2
2 2
2 1
2 1
1 2
1 2
1 1
1 2
1 1
1 1
1 1
1 1
1 1
1 2
1 1
1 2
1 1
1 1
1 2
2 2
2 1
2 2
2 1
1 2
1 2
2 1
1 1
1 2
1 2
2 2
2 1
2 2
1 2
1 2
2 2
2 1
2 1
1 1
2 1
1 1
1 2
2 1
1 1
1 1
1 2
2 1
2 2
1 2
1 1
1 1
1 1
2 1
1 2
1 1
2 1
2 1
1 1
2 2
2 2
2 1
1 1
2 1
1 1
1 1
2 2
1 2
1 2
2 2
1 2
2 2
2 1
1 2
1 1
2 2
1 1
2 1
2 1
2 2
2 1
2 2
1 2
1 1
1 2
2 1
1 1
2 1
2 1
2 1
1 1
2 1
2 1
1 1
2 1
2 2
1 2
1 1
2 2
1 2
1 1
2 1
2 2
2 1
2 1
1 2
2 1
1 1
2 1
2 2
2 2
1 2
2 1
2 2
1 1
1 2
1 1
2 1
2 1
1 2
2 2
1 2
2 1
2 2
1 2
1 1
1 1
1 1
1 1
2 1
1 1
1 2
1 1
1 1
2 2
2 1
2 2
1 1
2 2
2 2
1 1
1 1
1 1
2 2
1 2
1 2
1 2
2 1
2 1
2 1
2 1
1 2
2 1
1 2
1 2
2 1
1 2
2 2
1 1
2 1
2 2
2 2
2 1
1 2
2 2
1 1
1 1
1 2
1 2
1 1
2 2
1 1
1 2
1 1
1 1
1 2
1 2
2 2
1 1
1 2
2 2
2 1
1 1
1 1
2 1
1 2
1 1
2 1
1 2
1 1
1 1
1 1
1 1
2 1
1 1
1 1
1 2
2 2
2 1
1 2
1 2
1 2
2 1
2 2
1 2
2 2
2 1
2 2
2 2
1 1
1 1
2 1
1 1
1 1
1 2
1 2
1 1
2 2
2 2
2 1
1 2
1 1
1 1
1 2
2 1
1 1
2 1
2 1
1 2
1 1
1 2
2 2
1 1
1 1
1 1
2 1
1 1
2 1
1 2
1 1
2 1
2 2
2 2
1 1
1 1
2 1
1 2
1 2
2 2
2 1
1 2
1 2
2 1
2 2
2 1
1 1
1 2
2 1
1 1
1 1
1 2
2 2
2 1
1 2
2 2
2 1
2 1
2 2
1 2
2 1
1 2
1 2
2 2
1 2
2 1
2 1
2 2
2 1
1 2
1 1
1 1
1 2
1 1
2 2
1 2
2 2
2 1
2 1
2 2
1 1
2 1
2 1
1 2
1 2
2 2
2 2
2 1
2 2
1 1
2 1
2 2
1 1
2 2
2 2
2 1
2 1
2 2
1 2
2 1
2 1
1 2
2 1
1 2
2 2
2 1
1 2
2 2
2 1
2 1
1 2
2 1
1 1
2 2
1 1
1 1
1 2
1 1
1 1
2 1
2 2
1 2
1 2
2 1
1 2
1 1
2 2
2 1
2 1
1 1
2 1
2 1
1 2
2 1
1 2
1 1
1 1
2 2
1 2
1 1
1 1
2 2
1 1
2 1
1 1
2 2
1 2
2 2
2 1
1 1
1 1
2 2
1 2
2 1
2 2
2 2
1 2
1 1
1 2
2 1
2 1
2 2
2 1
2 2
1 1
1 1
2 2
2 2
1 2
2 1
2 1
2 1
2 1
2 2
1 2
1 1
2 2
2 1
2 2
2 2
1 1
2 2
1 2
1 2
1 1
1 2
2 1
1 2
2 1
1 2
2 2
2 1
1 1
2 2
1 2
2 1
2 2
2 2
2 1
1 2
1 1
2 2
1 2
2 1
2 2
2 1
1 1
1 1
2 2
1 1
1 2
1 1
2 2
1 2
2 1
2 1
1 2
1 1
1 1
2 1
1 2
2 1
1 2
1 2
2 1
2 2
2 1
1 2
1 2
1 2
1 2
2 1
2 2
1 1
1 1
1 1
1 2
1 1
1 1
2 1
2 1
1 1
2 2
2 2
2 1
2 1
2 1
2 2
2 2
2 1
2 1
1 1
1 2
1 1
1 2
2 1
2 2
2 2
2 2
1 1
1 1
2 2
2 2
1 2
2 1
2 2
2 1
1 1
2 1
1 1
1 2
1 2
1 1
1 1
1 1
1 2
1 1
2 1
2 1
2 1
1 1
2 1
2 2
1 1
1 1
1 1
1 1
2 1
2 1
1 1
2 2
1 2
2 1
1 1
2 2
1 2
1 2
2 2
1 2
2 1
2 2
2 2
2 1
1 2
1 2
1 2
2 1
2 2
2 2
2 1
1 2
2 1
2 1
2 1
1 1
1 2
1 1
2 1
1 1
1 1
2 1
1 1
2 1
1 1
2 1
2 2
1 1
2 1
2 1
1 2
2 1
2 2
1 1
1 1
2 1
1 2
2 2
2 1
1 1
2 2
2 1
1 1
2 1
1 2
1 2
2 1
2 1
1 2
2 2
2 1
1 2
1 2
1 2
2 2
2 1
2 1
1 2
1 1
1 2
2 1
2 2
2 1
2 2
2 2
2 2
2 2
1 1
1 2
2 1
1 1
1 2
1 2
2 2
1 1
2 1
1 2
2 1
1 2
2 2
1 1
2 2
1 1
1 2
1 2
1 1
1 1
2 2
1 1
2 2
2 2
1 2
1 2
2 1
2 2
2 2
1 2
2 2
2 1
1 1
2 2
1 2
2 1
2 2
1 2
1 1
2 2
1 2
1 1
1 1
1 2
1 1
1 2
2 1
2 1
2 1
2 2
2 2
2 1
2 2
1 1
1 2
1 1
1 2
1 1
1 2
2 2
1 2
2 1
2 2
2 2
2 1
2 1
2 1
2 2
1 2
1 1
1 2
1 1
2 2
1 1
1 1
1 2
1 2
2 2
1 1
1 1
2 2
1 2
2 2
2 1
1 2
1 1
2 1
2 1
1 2
2 1
2 1
2 2
2 2
2 1
1 2
1 1
1 2
2 2
2 2
1 2
1 2
2 2
2 1
2 2
2 2
2 2
1 1
1 2
2 2
1 2
1 2
2 2
1 2
2 1
2 1
1 1
1 1
1 1
1 2
2 2
1 1
2 1
1 1
1 2
1 1
1 1
2 2
2 2
2 1
2 2
2 2
2 2
1 2
1 1
2 1
2 1
1 1
1 2
2 1
2 2
1 1
2 2
2 2
1 1
1 2
1 1
1 2
2 2
2 2
1 2
1 2
1 2
2 2
1 2
2 2
2 1
1 2
2 1
2 1
2 1
1 2
1 1
1 1
2 2
1 1
1 2
1 1
2 1
1 1
2 1
2 2
2 1
2 1
1 1
2 2
1 2
1 1
1 1
1 2
1 2
2 1
2 1
1 2
1 2
1 2
2 2
1 1
1 2
1 1
1 1
1 1
1 2
2 2
2 2
1 2
2 1
2 2
2 1
1 2
2 1
2 2
2 2
1 1
2 2
1 1
2 1
2 1
2 2
1 1
2 2
2 1
1 1
2 2
1 2
1 1
2 1
2 1
2 2
2 1
2 1
2 2
2 2
1 1
2 2
2 1
1 1
2 1
2 2
2 2
2 1
1 1
1 1
1 2
1 1
1 2
1 1
2 1
2 1
2 2
1 1
1 1
1 2
2 2
2 1
1 1
2 1
2 2
2 1
2 2
2 1
1 2
2 1
1 1
2 2
2 2
2 2
1 2
1 1
2 1
2 1
1 1
1 2
1 2
2 1
2 1
2 1
1 1
1 2
1 1
2 2
1 2
2 2
2 1
1 2
2 1
1 2
2 1
2 2
1 1
2 1
2 1
2 1
1 2
2 1
2 2
1 1
2 1
2 1
2 2
1 1
1 1
1 1
2 1
1 2
1 2
2 1
1 1
2 1
2 2
1 2
2 1
1 1
1 1
1 1
2 1
2 1
1 1
2 1
1 1
1 1
2 1
1 2
1 2
1 2
1 2
1 1
2 2
1 1
1 1
1 2
2 2
1 1
2 1
2 1
2 1
2 2
2 1
1 2
1 2
1 1
1 2
2 2
2 2
2 1
1 1
1 2
1 1
1 1
2 2
2 2
2 1
2 2
2 2
1 2
2 2
2 2
1 1
2 1
2 1
1 2
2 1
2 2
1 1
2 1
2 2
1 1
2 1
1 1
2 1
2 2
1 1
2 1
2 2
2 1
2 1
2 2
1 1
2 1
1 2
1 2
1 1
2 2
2 1
2 1
2 1
1 1
1 1
2 2
1 1
2 1
2 1
1 2
2 2
2 2
2 1
2 2
2 1
2 1
1 1
1 2
2 1
2 2
2 2
2 1
2 1
1 2
1 2
1 2
1 1
1 1
2 2
1 2
1 1
1 2
1 1
1 1
1 2
1 1
1 1
1 1
2 2
1 1
1 1
2 2
2 1
1 1
2 2
1 2
1 2
2 1
1 1
2 2
1 2
1 2
2 2
1 2
1 1
1 1
2 2
1 1
1 1
2 1
1 1
1 1
1 1
1 2
1 1
1 1
2 1
2 1
1 1
2 1
2 1
2 1
1 1
2 1
2 2
2 1
2 1
2 2
1 1
1 1
2 1
1 1
2 1
2 2
1 1
1 1
1 2
2 1
1 1
1 1
1 2
1 1
1 1
2 1
2 1
1 1
2 2
2 2
1 2
1 1
1 1
2 1
1 1
2 2
1 2
1 1
2 1
2 1
2 2
1 1
2 2
2 1
1 2
2 1
1 1
2 1
2 1
2 1
2 2
1 1
1 1
2 1
1 2
2 1
2 1
1 1
1 1
1 1
2 2
2 2
2 1
1 1
2 2
1 2
2 1
2 1
2 1
1 1
1 1
2 1
2 1
1 2
1 2
2 1
1 2
2 2
1 2
1 2
1 1
2 2
1 1
1 1
2 2
1 2
2 2
1 2
2 2
2 2
2 1
1 2
2 2
2 1
1 2
2 2
1 1
2 2
1 2
1 2
1 2
2 1
1 1
1 1
2 1
1 2
1 2
2 1
2 2
1 1
1 2
2 1
1 1
2 2
2 1
1 1
2 2
2 2
1 1
2 1
1 2
2 1
2 2
1 1
1 1
1 2
1 2
2 1
1 1
2 1
2 1
1 1
2 2
2 1
2 1
1 1
1 2
1 2
2 1
2 2
2 1
1 1
1 2
1 2
1 2
1 1
2 1
2 2
1 1
2 2
2 1
1 2
2 1
2 2
1 2
1 2
2 1
2 2
2 2
2 2
2 1
1 1
2 2
2 2
2 1
2 2
1 1
2 1
1 2
1 1
1 2
1 2
1 1
1 2
1 2
2 2
1 1
2 2
2 2
2 2
1 1
1 1
1 2
1 1
2 1
1 2
2 1
1 1
1 1
2 1
1 1
1 1
2 2
2 2
2 1
2 1
1 1
2 2
2 2
2 1
1 2
1 2
2 1
2 2
2 1
1 1
1 2
2 1
2 1
2 1
2 2
1 1
1 2
2 1
2 1
1 2
1 2
1 1
1 2
1 1
1 1
1 1
1 1
1 1
2 2
2 1
2 2
2 1
1 2
2 1
1 2
2 2
2 1
2 2
1 2
2 2
2 1
1 1
2 1
2 1
2 2
2 1
1 2
2 1
1 1
2 2
2 2
2 2
2 1
2 1
2 2
2 2
1 1
1 2
2 2
1 1
2 2
2 1
2 1
2 1
1 2
1 2
2 2
1 1
1 2
1 2
2 2
1 2
1 2
2 2
2 1
2 1
2 2
1 1
1 2
2 2
2 1
1 1
1 1
1 2
1 1
2 1
2 1
2 2
2 2
2 1
2 2
2 1
1 2
2 1
2 1
1 1
1 2
1 1
2 2
2 2
1 1
1 1
2 1
1 2
1 1
2 1
2 1
1 1
1 1
1 1
1 1
1 2
1 1
1 2
1 2
1 1
1 1
1 1
2 1
2 1
1 2
1 1
2 1
2 2
2 1
2 1
1 2
1 1
2 2
2 2
2 2
2 2
2 1
1 1
1 2
1 2
2 1
2 2
2 1
2 2
2 2
1 2
1 1
1 1
2 2
2 1
1 1
2 1
1 2
2 1
2 2
1 2
2 1
2 1
2 1
1 1
1 2
1 2
1 1
2 1
2 2
2 2
1 1
2 1
1 2
1 2
2 2
2 1
2 1
1 1
1 1
2 2
2 1
2 2
2 1
2 1
2 1
1 1
1 2
1 1
1 1
2 2
2 1
1 2
2 2
1 2
1 1
1 1
1 1
1 1
1 2
2 1
2 2
2 1
1 1
1 2
1 2
1 2
2 2
2 2
1 2
2 2
1 1
2 2
2 1
2 2
2 1
2 1
1 2
1 2
1 2
1 1
1 1
1 2
2 2
1 1
2 1
2 2
1 1
2 1
2 1
1 1
2 1
2 1
1 2
1 2
2 1
1 2
1 1
2 1
1 1
2 1
1 2
2 2
1 1
2 2
1 1
1 1
2 1
2 1
2 1
1 1
1 2
1 2
2 2
2 2
2 1
1 1
1 1
2 2
2 2
2 2
2 2
1 1
1 1
2 2
1 1
1 1
1 2
1 2
2 1
1 1
1 1
1 2
1 2
2 1
1 1
1 2
1 2
1 2
1 1
2 2
2 2
1 2
2 2
2 2
1 1
2 2
2 2
2 1
1 2
2 2
2 1
1 2
2 2
1 2
2 2
2 1
2 2
1 1
1 1
2 2
1 2
1 1
2 1
1 1
2 1
2 1
2 1
2 1
1 2
1 1
2 1
1 1
1 2
2 2
1 2
2 1
1 1
2 1
2 2
1 2
2 1
2 2
1 2
2 1
1 1
1 1
1 1
1 2
1 1
2 2
1 2
1 1
2 1
1 1
2 2
2 1
1 2
1 2
1 2
1 1
1 1
2 2
2 2
2 1
2 2
2 1
1 1
2 1
1 1
2 1
1 1
2 2
2 1
2 2
2 1
1 1
1 1
2 1
2 2
2 2
2 2
2 2
2 1
1 1
2 2
2 2
2 1
1 2
1 1
2 2
2 2
1 1
2 2
2 1
2 1
2 2
2 2
2 1
2 1
2 1
2 1
1 1
1 1
2 1
1 2
1 2
2 1
1 2
2 2
1 2
2 1
1 2
1 1
2 2
1 2
1 2
1 1
1 1
1 1
1 1
2 1
1 2
1 1
2 1
1 1
1 1
1 2
1 2
2 2
2 1
1 1
2 2
2 1
1 2
1 2
1 1
2 1
1 1
2 1
2 1
1 1
1 1
2 1
1 2
1 1
1 2
2 2
1 2
2 1
2 2
1 1
2 2
2 2
1 2
2 2
1 2
1 2
1 2
1 1
1 2
2 1
2 2
2 2
1 2
1 2
1 2
1 1
1 1
1 1
1 1
1 1
1 1
2 1
1 2
1 2
1 1
1 2
2 1
2 2
1 2
1 1
2 2
2 1
2 2
1 1
1 2
2 2
1 2
1 2
1 2
2 1
1 1
1 1
1 1
1 1
2 1
2 2
2 2
1 1
1 1
2 2
1 1
2 2
1 2
2 2
2 2
2 2
1 2
2 1
2 2
1 2
2 2
2 2
2 1
1 1
1 2
1 1
2 1
1 1
2 2
1 2
2 1
2 1
1 2
1 1
1 2
1 1
1 1
2 1
1 1
2 2
2 2
2 2
2 1
1 1
1 1
2 2
2 2
1 2
2 2
2 1
2 1
2 1
2 1
1 1
2 1
1 2
1 2
1 1
1 1
1 1
2 2
2 1
1 2
2 1
1 1
2 1
2 2
1 1
1 1
2 2
2 2
2 1
1 1
1 1
2 2
1 2
1 1
1 1
2 1
1 1
2 1
1 2
2 1
1 2
1 2
1 2
1 2
1 2
2 1
1 1
1 1
2 2
2 2
2 2
1 2
2 1
1 2
2 1
2 1
2 2
1 1
2 2
1 2
1 2
1 1
2 1
1 1
1 2
1 1
2 2
1 2
2 1
2 1
1 1
2 2
2 1
1 1
2 2
1 2
2 1
2 2
1 2
2 1
2 2
2 2
2 2
1 1
1 1
1 2
1 1
1 1
1 2
1 2
2 2
1 2
2 1
2 1
1 2
2 1
1 1
2 1
2 1
1 2
1 1
1 2
1 2
2 2
2 1
2 2
1 1
1 1
2 1
1 1
1 2
2 1
2 2
1 1
2 2
2 1
2 2
2 1
1 2
1 2
1 2
1 1
1 2
2 1
2 1
1 2
2 1
1 2
1 1
1 2
1 1
1 1
2 2
2 1
2 1
2 2
1 2
1 2
2 1
1 1
1 2
1 2
1 1
2 1
2 2
1 1
2 1
1 2
1 1
2 2
1 1
1 2
2 2
1 2
1 2
2 2
2 1
2 1
2 1
2 2
2 2
1 2
2 1
1 1
1 1
2 1
2 2
2 1
2 1
1 2
1 2
1 2
2 1
2 2
1 2
2 1
1 1
1 1
1 2
1 2
2 2
2 2
1 2
1 1
2 2
2 2
2 1
2 2
1 1
1 1
2 1
1 1
2 2
2 1
2 2
1 1
2 1
1 2
1 2
2 1
2 2
1 2
2 1
1 1
2 2
2 1
2 2
1 2
1 2
1 2
2 1
2 1
1 2
1 1
2 2
2 2
2 1
2 2
2 1
1 1
2 2
1 2
2 2
2 1
2 2
2 2
1 2
1 2
2 2
1 1
1 1
1 1
1 2
1 2
2 2
2 2
2 1
1 2
1 2
1 1
1 2
2 2
2 1
1 1
2 1
2 1
2 2
2 1
1 1
1 2
1 2
1 1
1 1
1 2
1 2
1 2
1 2
1 1
2 1
1 2
2 2
2 1
1 1
1 1
1 2
1 2
1 1
1 2
2 2
1 1
2 2
2 1
2 1
1 1
1 2
1 2
1 2
2 2
1 2
2 1
1 1
1 2
2 1
2 2
2 1
1 2
1 1
2 2
2 2
2 2
2 1
1 2
2 2
1 1
2 1
2 1
2 2
1 2
1 1
2 1
1 1
2 2
1 1
1 2
2 1
2 1
1 1
2 2
2 1
1 2
1 1
2 1
1 2
1 1
2 2
1 1
1 1
2 2
2 2
1 2
1 2
2 2
2 2
2 2
1 2
1 1
1 2
2 1
1 1
1 1
1 2
1 1
2 1
1 2
2 1
2 2
2 1
1 1
1 1
2 2
2 1
2 2
1 1
1 1
2 1
1 1
2 1
2 2
2 1
1 2
1 2
2 1
2 1
2 2
2 1
1 2
2 1
2 1
2 2
1 2
2 1
2 2
2 2
1 1
2 1
1 1
2 1
2 2
2 2
2 2
1 2
1 2
2 2
2 1
1 1
2 2
2 1
2 2
1 2
1 1
2 1
2 1
1 1
2 2
2 2
2 1
2 1
2 1
2 1
1 2
2 2
2 2
1 2
1 1
1 2
2 2
1 2
2 1
1 1
1 1
2 2
2 2
1 1
1 2
1 2
1 2
1 1
1 1
1 2
1 2
1 1
1 2
2 1
1 1
1 1
1 1
1 1
2 2
1 1
2 1
1 1
2 2
1 1
2 1
1 2
2 1
2 2
1 2
2 1
1 2
2 1
1 2
2 1
2 1
1 2
1 2
1 1
2 1
2 2
2 2
2 2
2 1
2 1
2 1
2 1
1 2
2 1
2 2
1 1
1 1
2 2
1 2
1 1
2 2
2 2
1 1
2 2
1 2
2 1
1 1
1 2
2 1
2 1
2 2
1 2
2 2
2 1
2 2
2 1
2 1
1 2
1 2
1 2
2 2
2 1
2 1
1 2
2 2
1 1
1 1
2 2
1 2
1 2
1 1
2 1
2 2
1 1
1 2
2 1
2 2
2 1
2 1
2 2
1 1
2 1
1 2
1 2
2 2
2 2
2 2
1 2
1 1
2 2
2 1
2 2
1 2
2 2
1 2
1 1
1 2
1 1
1 1
2 2
1 2
1 1
2 1
1 2
1 2
1 1
1 1
2 1
2 1
2 2
1 2
1 1
1 2
2 2
2 2
2 2
2 2
1 2
1 2
1 1
1 1
1 1
2 1
1 2
2 1
2 2
1 2
2 2
2 1
2 2
1 2
2 1
2 2
2 1
1 2
2 1
1 1
1 1
1 2
2 2
1 2
2 1
2 2
1 2
2 1
2 2
1 1
2 1
1 2
1 2
1 1
2 1
2 2
2 2
1 2
1 2
2 1
2 2
1 1
2 2
1 2
2 2
2 1
1 2
2 2
1 2
2 2
2 2
1 2
1 2
2 2
1 1
1 2
2 2
2 1
2 2
1 1
1 2
1 2
2 2
2 1
2 1
2 1
2 2
1 2
2 2
1 2
1 2
1 1
1 2
2 2
2 1
1 1
1 1
1 1
1 1
1 2
1 1
2 2
1 2
1 1
2 2
2 2
1 1
1 1
2 2
1 2
1 2
1 2
1 2
2 2
2 1
1 1
1 2
2 2
1 2
2 1
1 2
1 2
1 2
1 1
1 1
1 2
1 2
1 2
2 1
1 1
2 2
2 2
1 2
1 1
1 1
1 1
2 2
2 1
1 2
2 2
2 2
2 2
1 1
1 2
1 2
1 2
1 2
2 2
2 1
1 2
1 1
2 1
1 2
1 1
1 1
2 2
2 1
2 2
1 1
1 1
2 1
2 1
1 1
1 2
1 1
2 2
2 2
2 2
1 1
2 2
1 2
1 1
1 1
2 1
2 2
1 1
2 1
1 2
1 2
2 2
1 1
1 1
2 2
2 2
1 1
1 2
1 2
1 2
1 2
1 1
2 1
2 1
1 1
1 2
2 1
2 1
1 1
1 2
2 1
1 2
1 2
1 2
2 1
2 2
1 1
1 2
2 2
2 1
1 1
2 2
2 1
2 2
2 2
2 1
2 1
2 2
2 1
1 1
1 1
2 1
1 1
2 2
2 1
1 2
2 1
2 2
2 2
1 2
2 1
2 1
2 1
1 2
2 2
2 2
2 2
2 2
1 2
2 1
2 2
2 2
2 1
2 1
2 2
1 1
2 1
2 2
2 2
1 2
1 1
1 1
1 1
1 1
2 1
1 2
1 2
2 1
1 1
1 2
2 1
2 1
2 2
1 1
2 2
2 1
1 1
1 1
1 1
2 2
1 2
1 2
2 2
2 1
1 1
2 1
2 2
2 2
2 2
2 2
1 2
1 2
2 2
2 1
2 2
2 2
2 1
2 1
1 2
2 1
2 1
2 1
2 1
2 2
1 2
1 2
2 1
1 1
2 2
1 2
1 1
2 2
2 2
2 1
2 2
2 2
2 2
2 2
1 1
2 1
1 2
1 1
1 1
1 2
2 2
1 2
1 1
1 2
2 2
1 1
2 2
1 2
2 2
1 1
2 2
1 1
1 2
2 1
1 2
2 1
1 1
1 1
1 1
2 2
2 2
1 1
2 2
1 1
2 2
2 2
1 2
2 2
2 1
1 1
1 2
2 2
1 1
1 2
2 1
2 2
2 2
1 1
2 1
2 1
2 1
1 2
2 2
2 1
2 2
1 1
1 1
1 1
2 2
2 2
1 1
2 1
2 1
1 2
2 1
2 2
1 2
2 1
2 1
2 2
2 2
2 1
2 2
1 1
1 1
2 2
1 1
1 2
1 1
1 1
2 1
2 1
1 2
1 2
1 2
2 1
2 1
2 2
1 1
1 1
2 2
2 1
2 1
2 2
1 2
1 2
2 1
1 2
2 1
1 1
1 1
2 1
1 1
2 1
2 1
2 1
2 1
1 1
1 1
2 2
1 2
2 1
1 2
1 2
1 1
2 2
2 1
2 2
1 2
2 1
1 2
1 2
2 1
1 2
2 2
2 2
2 2
2 1
2 1
1 1
2 1
2 2
2 2
2 2
2 2
1 1
2 1
1 1
1 1
1 2
2 1
1 1
2 1
1 1
2 1
2 1
1 1
1 2
2 2
1 2
1 2
2 1
1 2
2 1
2 1
1 1
2 1
1 1
1 1
2 2
1 2
2 2
2 2
1 1
1 1
2 1
1 1
2 1
2 2
2 2
1 2
1 1
1 1
2 2
2 2
2 2
1 1
1 1
2 1
1 1
2 1
2 1
1 1
1 2
2 1
2 1
2 2
1 2
1 2
2 2
2 1
2 1
2 2
1 2
2 2
1 1
2 1
2 2
2 2
2 1
1 1
2 2
1 1
2 1
2 1
1 2
2 1
1 1
2 1
1 2
1 1
2 2
1 2
2 1
1 2
1 2
2 2
2 1
1 1
1 2
2 2
1 1
1 1
2 1
1 1
1 2
2 2
1 2
2 2
1 2
1 2
1 2
2 1
2 1
1 2
2 1
1 1
2 2
2 1
2 1
1 1
2 1
2 2
2 2
1 1
2 2
1 2
2 1
1 2
1 2
1 2
1 1
2 2
1 2
1 1
1 1
1 1
1 1
2 2
1 2
1 1
2 1
1 2
1 2
2 1
1 2
2 1
2 1
2 1
1 1
1 1
1 2
2 2
1 2
2 2
1 1
1 1
1 2
1 2
1 1
1 2
2 2
2 2
2 2
2 2
1 2
1 2
1 1
2 2
1 1
1 1
1 1
1 1
1 2
2 1
1 2
2 1
1 1
1 1
2 1
2 1
1 1
2 2
2 1
2 2
2 1
1 2
1 1
2 1
1 1
2 1
1 1
1 2
1 2
1 2
1 2
1 2
1 2
2 1
2 2
1 1
1 2
1 1
1 2
2 2
1 1
1 1
2 1
2 2
1 1
1 1
1 2
2 2
2 1
1 2
1 1
1 1
2 1
2 1
2 1
2 1
2 2
2 2
2 1
2 1
1 1
2 2
1 1
1 1
2 1
2 1
2 2
1 2
2 2
2 2
2 1
1 2
2 2
1 2
1 1
2 2
1 2
2 1
2 2
1 1
2 2
1 1
1 1
2 2
2 2
1 1
1 1
2 1
1 2
1 1
1 1
2 2
1 1
2 2
2 2
1 1
2 2
1 1
1 1
2 2
1 1
2 1
1 2
1 1
2 2
2 1
1 1
2 2
1 1
1 2
1 1
2 2
1 1
2 1
1 1
2 1
2 1
1 1
1 2
1 1
2 2
2 1
2 1
1 1
2 1
2 2
2 1
1 2
2 1
1 1
1 1
2 2
1 2
1 1
2 1
2 1
1 1
1 1
1 1
1 2
2 1
1 1
2 2
2 2
1 1
1 2
2 1
1 1
2 1
2 1
1 1
1 1
1 2
1 1
1 1
2 1
1 1
1 2
2 1
1 1
1 1
2 1
2 1
2 1
2 1
2 1
1 2
1 2
1 1
1 1
2 1
1 2
2 2
1 1
2 2
1 2
2 1
2 2
1 2
2 1
1 2
1 2
2 2
2 2
1 2
1 1
1 2
2 2
2 1
1 2
1 2
2 1
2 2
2 2
2 1
1 1
1 2
1 2
1 2
1 2
2 1
1 2
1 1
1 2
1 1
1 1
2 1
1 1
1 1
1 2
2 2
2 2
2 2
2 1
2 2
2 2
1 1
2 2
2 1
1 1
1 1
2 2
2 2
2 2
2 1
1 2
2 2
1 1
1 1
2 2
1 2
2 2
1 2
1 2
1 1
2 2
2 1
2 2
2 2
2 2
2 1
2 1
1 1
1 2
2 1
1 2
2 1
1 1
1 1
1 2
1 2
1 2
2 1
1 1
2 1
2 2
2 1
1 2
1 1
1 2
2 1
2 1
2 1
1 1
1 1
1 2
2 2
2 2
2 1
1 2
2 1
1 2
2 2
1 2
1 1
2 1
2 1
2 2
2 2
2 1
1 2
1 1
1 1
2 1
2 2
2 2
1 2
1 2
1 1
1 1
1 1
2 1
2 1
2 1
1 1
1 1
1 1
1 2
2 1
1 1
1 1
2 2
2 1
2 2
1 1
1 2
2 1
2 2
2 1
2 2
1 2
1 2
2 2
2 1
1 2
1 2
1 1
2 2
2 2
1 1
2 2
2 1
1 2
1 2
1 2
1 2
2 2
2 1
1 2
2 1
1 1
1 1
2 2
2 2
2 1
2 1
2 1
2 2
2 1
1 2
1 1
1 1
1 1
2 1
1 1
2 2
2 2
1 2
1 2
2 1
1 1
1 2
2 2
1 1
1 1
2 1
2 1
1 2
2 1
1 1
2 2
1 1
1 1
2 2
2 1
1 2
2 1
2 1
2 1
2 1
2 2
2 2
1 1
2 2
2 2
1 1
2 2
1 2
2 1
1 2
1 2
1 1
1 2
1 1
1 1
1 1
2 2
2 2
1 2
2 2
1 1
2 1
2 2
2 1
2 1
2 1
1 2
1 2
1 2
2 2
2 2
2 2
1 2
2 1
2 2
2 2
1 2
1 1
2 1
1 1
2 1
1 1
1 2
2 1
2 1
1 2
1 1
1 1
1 2
2 2
2 2
2 1
1 1
1 1
1 1
2 2
1 1
2 1
1 1
2 1
2 2
2 2
1 1
1 1
2 1
1 1
2 1
2 2
2 2
1 1
1 1
1 1
2 2
2 2
1 1
2 2
1 2
1 2
2 1
2 1
1 1
2 1
2 1
1 2
2 1
1 1
1 1
2 1
1 1
2 2
1 1
2 1
1 2
1 2
2 2
2 2
1 2
1 1
1 2
2 1
1 1
2 2
1 1
1 2
2 2
1 2
1 1
2 1
2 1
1 1
1 1
1 2
2 1
2 2
1 2
2 2
1 1
2 1
1 2
1 1
1 1
1 2
1 2
1 2
2 1
1 2
2 2
2 2
2 1
2 1
1 1
2 1
2 1
2 1
1 2
1 2
1 2
2 1
2 1
2 1
2 1
2 2
2 2
2 1
1 2
1 1
1 1
1 2
2 1
1 1
2 1
2 1
1 2
1 1
2 2
2 1
2 1
2 1
1 1
1 2
2 2
2 2
2 1
2 2
1 2
2 2
2 2
2 2
2 2
2 1
2 1
2 1
1 2
1 2
2 2
2 1
1 2
2 1
2 1
1 1
2 2
1 2
1 2
2 2
2 1
1 2
1 1
2 1
1 1
1 1
2 2
2 2
1 1
2 2
2 1
1 1
2 1
1 2
1 1
1 2
1 2
1 2
1 1
1 1
2 2
1 2
1 1
2 2
1 2
1 1
2 2
2 1
2 2
1 1
2 1
1 1
2 1
1 1
2 1
2 2
1 1
1 2
2 2
1 1
1 2
1 1
2 2
2 2
2 1
2 2
1 2
2 2
2 2
1 1
2 1
1 2
2 1
1 1
2 2
2 1
1 1
1 1
1 2
2 1
1 1
2 1
1 1
1 2
2 1
1 1
2 1
1 2
1 2
1 2
1 1
1 2
1 1
2 2
2 1
1 1
2 1
1 1
2 1
1 1
1 1
1 2
1 1
1 2
1 2
1 1
1 1
1 1
2 1
1 1
2 2
1 1
1 1
2 1
2 1
1 2
2 2
1 1
1 2
1 1
1 2
2 2
1 2
2 2
2 2
1 2
1 2
2 1
2 2
1 1
2 2
2 1
2 2
2 1
1 1
2 2
1 1
1 1
1 1
1 1
2 1
1 1
1 2
2 1
2 2
2 2
2 2
2 1
1 2
1 1
2 2
2 1
1 2
1 1
2 2
2 2
2 1
2 2
1 1
1 1
1 2
2 1
2 1
1 2
2 2
2 2
1 1
1 2
2 1
2 2
2 2
2 2
2 1
1 1
1 2
2 1
2 1
1 1
2 2
2 1
2 1
2 1
1 2
2 2
2 1
2 2
1 2
1 1
2 1
2 1
2 1
1 2
1 1
1 1
1 1
2 2
1 2
2 1
1 2
2 2
1 1
1 1
1 1
1 2
2 1
1 2
1 2
2 1
1 1
2 2
2 1
1 2
1 2
1 2
1 2
2 1
2 1
2 1
2 1
2 2
1 1
1 1
2 1
1 2
2 2
1 2
2 1
2 1
1 1
1 1
1 1
1 1
2 2
1 2
1 1
1 2
2 2
1 1
2 2
1 1
2 1
2 2
2 1
1 1
2 1
1 1
2 1
1 2
1 2
2 1
1 2
2 2
2 2
1 1
2 2
2 2
2 1
2 1
2 2
2 2
2 1
1 1
1 1
1 1
1 2
1 2
1 1
1 1
1 2
1 2
1 2
2 2
1 2
1 1
2 2
2 2
2 1
1 1
1 1
2 1
2 1
1 2
1 2
1 2
2 1
1 1
2 1
1 2
1 1
1 2
2 2
2 1
2 2
2 2
2 2
2 1
2 1
2 1
1 2
2 1
1 1
2 2
1 2
2 2
1 2
1 1
2 2
1 1
1 2
1 2
2 1
1 1
2 2
2 2
1 1
1 2
1 2
1 1
2 2
2 2
2 1
1 2
2 2
1 1
1 1
2 2
2 1
2 2
2 1
2 1
2 1
1 2
1 1
1 2
1 2
1 1
1 2
2 2
2 1
2 1
1 1
1 2
2 2
1 2
2 2
1 2
1 2
2 2
2 1
1 2
1 2
2 2
1 1
2 2
2 1
2 2
2 2
2 2
1 1
2 2
1 2
1 2
1 2
2 2
2 1
2 1
2 1
1 1
2 2
1 2
2 1
2 2
1 1
2 1
2 1
2 1
2 2
1 2
1 1
2 1
2 2
2 1
2 2
1 1
1 2
1 1
1 2
2 1
1 2
2 2
2 2
1 1
1 1
1 1
2 1
2 2
1 2
2 2
2 1
2 1
1 1
1 2
1 1
1 1
1 1
1 1
1 2
1 2
1 1
2 2
1 1
1 1
2 2
1 2
2 1
1 1
1 1
1 2
2 1
2 2
1 1
1 2
2 2
1 2
2 1
2 1
2 1
1 1
1 1
2 1
2 2
2 2
1 1
2 1
2 2
1 1
2 1
2 2
2 2
1 1
1 2
2 2
1 2
1 2
1 1
2 1
2 2
1 1
2 2
2 1
2 1
1 2
2 2
2 2
2 2
1 2
2 2
2 2
1 2
2 1
1 1
2 2
1 2
1 2
2 2
1 1
1 2
1 1
1 1
1 1
1 2
2 2
2 1
2 1
1 1
2 2
1 1
2 1
2 1
1 2
1 2
1 1
2 2
1 1
2 1
2 2
1 1
1 1
1 2
2 1
1 1
2 2
1 2
2 2
2 1
1 1
1 2
2 2
1 2
1 1
1 1
1 1
1 2
1 2
1 1
1 2
2 1
1 1
2 1
2 1
2 1
2 1
2 2
2 2
2 1
1 2
2 1
2 1
1 2
2 2
2 2
1 2
2 1
1 2
1 1
1 1
1 2
2 1
1 2
1 1
2 2
1 2
1 1
1 1
1 1
1 2
1 1
1 1
2 1
2 2
2 1
2 2
1 2
1 2
1 1
1 1
1 2
2 1
2 1
2 1
2 1
2 2
2 2
1 1
2 2
1 2
2 2
1 1
1 2
1 2
2 1
1 2
1 1
1 1
1 2
1 1
2 2
1 2
1 1
1 2
1 2
2 2
1 2
1 2
1 2
2 2
1 1
1 1
1 2
2 1
1 2
2 1
2 1
2 1
1 1
1 1
2 2
1 2
1 2
2 1
1 2
1 2
2 2
2 1
2 1
1 2
1 2
2 2
1 2
1 1
1 2
2 1
1 2
1 2
2 1
1 1
2 2
2 1
2 1
2 1
2 1
1 1
2 1
2 2
1 2
1 1
1 1
2 1
1 1
1 2
2 2
1 1
1 2
1 1
1 1
1 1
2 1
2 2
2 1
2 1
2 2
2 2
2 1
2 2
2 2
2 1
1 1
1 2
2 2
2 1
2 2
1 2
1 2
1 1
2 2
1 1
1 1
1 1
1 2
1 1
1 1
2 2
2 2
1 1
2 1
1 1
1 1
1 2
2 2
2 1
1 2
2 1
2 2
2 2
2 1
1 2
1 2
1 1
2 1
1 2
1 2
1 1
2 1
2 1
2 2
1 2
1 2
1 2
2 2
1 2
1 1
2 2
2 1
2 2
2 2
2 2
2 2
2 1
2 2
1 1
1 1
1 2
1 1
1 1
2 1
1 1
1 1
1 2
1 1
1 2
2 1
1 2
1 2
2 2
1 2
1 1
2 2
1 2
2 1
2 1
1 1
1 2
1 1
1 2
2 1
2 1
1 1
1 2
1 2
1 1
1 2
1 1
2 1
2 2
1 2
1 1
2 2
2 1
1 2
1 1
2 1
2 1
2 2
2 2
2 2
1 2
1 1
2 2
2 2
1 1
1 1
1 1
1 2
2 2
2 1
1 2
1 1
2 1
1 2
2 2
2 1
1 2
1 1
2 2
1 2
2 2
1 1
1 2
2 1
1 1
2 2
1 1
1 1
1 2
2 1
2 2
2 2
1 2
1 2
2 1
1 1
1 1
1 2
1 1
1 1
1 2
2 1
2 1
1 2
1 2
2 2
1 1
2 2
1 1
1 1
2 2
1 2
1 2
1 1
1 1
2 1
2 1
2 1
1 1
1 1
2 1
2 2
1 1
1 1
1 1
1 2
2 2
1 1
2 2
1 2
2 2
2 1
2 1
1 2
2 2
1 2
1 2
2 1
1 1
2 2
1 1
2 1
1 2
2 2
2 1
2 2
2 2
1 2
1 2
1 2
2 2
2 2
1 2
1 2
2 1
1 1
2 2
1 1
1 1
1 2
1 2
2 2
1 2
2 1
2 1
2 1
1 2
2 2
1 1
2 2
1 2
1 1
2 2
1 2
1 2
2 1
2 2
1 2
2 1
1 1
1 2
2 1
1 1
1 2
2 2
2 1
1 2
2 2
2 2
1 1
1 2
1 1
2 1
2 2
2 1
1 2
1 1
1 2
2 1
2 2
1 2
2 2
2 2
1 2
1 1
1 1
1 2
1 1
2 2
2 1
2 1
1 1
2 2
2 2
1 2
1 2
2 2
1 2
2 2
2 1
1 2
1 2
2 2
2 2
1 1
2 2
1 2
1 1
2 1
1 2
2 1
1 1
1 1
2 2
2 2
2 1
1 1
2 1
1 1
1 1
2 1
2 1
1 2
1 2
2 2
2 2
2 1
2 2
2 1
1 1
2 2
2 2
1 2
1 1
1 1
2 2
2 2
1 1
1 1
1 1
2 2
2 1
2 1
2 1
2 1
1 1
1 1
2 1
1 1
1 1
1 2
2 1
1 2
1 2
2 2
1 1
2 1
1 2
1 1
2 1
1 1
2 1
2 1
2 2
2 1
1 2
2 2
2 1
1 2
1 1
2 1
1 1
2 2
1 1
2 1
2 2
1 2
2 2
1 1
1 1
1 2
1 2
1 2
2 1
2 1
2 2
1 2
2 1
2 1
1 2
2 1
1 1
2 1
2 1
1 1
1 2
1 1
1 2
2 1
1 2
1 2
2 2
2 1
2 2
2 1
1 2
2 1
2 1
1 1
1 1
2 2
2 1
2 2
1 1
2 2
1 2
2 2
2 2
1 1
2 1
2 2
1 2
1 1
2 2
2 1
2 2
1 2
1 1
2 1
2 1
1 2
1 2
2 2
1 1
2 2
2 1
2 1
1 1
1 2
2 2
1 1
2 2
2 2
1 2
2 1
2 2
1 1
1 2
1 1
1 1
2 2
2 1
2 2
2 2
1 1
2 2
1 2
2 2
1 2
1 1
1 2
2 2
2 2
1 2
1 1
1 2
1 1
1 2
2 2
1 1
1 2
1 1
1 1
2 2
1 2
2 1
1 1
1 2
1 2
1 2
2 1
2 1
2 1
2 2
1 2
2 2
1 2
1 1
2 2
2 1
2 2
1 1
2 1
2 2
1 1
1 2
1 2
1 2
1 2
2 1
1 2
2 1
2 1
1 2
2 1
2 2
2 1
2 2
2 2
1 2
1 2
1 2
1 1
2 1
1 2
1 1
2 2
2 2
2 2
1 2
2 2
1 1
1 2
2 1
1 1
2 1
1 2
2 2
1 1
1 1
2 2
1 1
2 1
2 2
2 1
1 1
2 2
2 1
1 1
1 1
2 2
2 1
1 1
1 1
2 1
1 2
1 1
2 2
2 2
2 2
1 1
2 1
2 1
1 1
1 1
2 2
2 1
2 1
2 1
1 2
1 2
2 2
1 1
2 2
1 2
1 1
2 2
1 2
2 2
1 2
1 1
2 2
2 1
1 2
1 2
1 2
1 2
1 2
1 1
2 2
2 2
2 1
1 2
2 1
2 1
2 2
2 2
2 1
2 1
2 2
1 1
1 1
2 2
1 2
2 1
2 1
1 1
1 2
1 1
1 2
2 1
2 2
1 2
1 1
2 1
2 1
2 1
2 1
1 1
2 1
1 2
2 1
2 2
1 2
2 2
2 1
2 2
1 1
2 1
1 2
2 2
2 1
2 1
2 1
2 2
1 1
1 1
1 2
1 1
1 1
2 2
2 1
2 1
2 1
1 1
2 1
2 2
1 2
1 1
1 1
2 2
1 2
1 2
2 2
2 1
1 1
1 1
1 2
1 1
1 1
1 2
2 1
1 1
2 2
2 1
1 1
2 2
1 1
1 1
2 2
1 1
1 2
1 1
1 1
2 2
1 2
1 2
2 2
1 2
2 1
1 2
2 1
1 2
1 1
1 1
1 1
1 2
1 1
1 2
2 2
2 2
1 2
1 2
2 1
1 1
1 1
2 1
2 1
2 1
1 1
2 2
2 1
1 2
1 2
2 1
2 2
2 2
1 1
2 2
1 1
1 1
1 1
1 1
2 2
1 1
2 1
1 1
2 1
1 1
2 2
2 2
1 1
2 2
1 1
1 1
2 1
2 2
2 2
1 2
2 1
1 1
2 2
2 1
2 1
2 2
2 1
1 2
1 2
2 2
1 2
1 1
1 2
1 1
2 2
1 1
1 2
2 1
2 1
1 2
1 2
1 1
1 1
1 1
2 1
2 1
2 1
1 2
1 1
1 1
2 2
1 2
1 1
2 1
2 2
1 2
1 2
2 1
1 1
1 1
2 2
1 1
1 2
2 1
1 2
1 2
1 2
1 2
1 2
2 1
1 1
2 2
1 2
1 1
2 1
1 2
2 2
2 1
1 2
2 2
2 1
1 2
1 1
1 1
1 2
1 2
2 1
1 2
2 2
1 1
2 2
2 2
2 2
2 1
2 1
1 1
1 2
2 1
2 1
2 2
2 1
2 2
2 2
1 1
1 2
2 2
2 1
1 2
2 1
1 1
1 1
2 2
2 2
1 2
2 1
2 2
2 1
1 2
2 2
1 1
1 2
2 2
2 2
2 2
2 1
2 1
2 2
1 1
2 1
2 1
1 1
1 2
2 1
2 2
2 2
1 2
1 1
1 1
2 2
2 1
2 2
1 2
1 2
2 1
2 1
1 2
1 2
2 2
2 2
2 2
1 2
1 2
1 1
1 1
1 1
2 1
1 2
1 1
2 1
2 1
2 1
2 2
2 2
2 2
2 1
2 2
1 1
1 2
2 1
2 1
2 1
2 1
1 2
2 1
2 2
2 1
2 1
1 2
2 1
1 2
2 1
2 2
2 2
2 2
2 2
2 1
1 2
1 2
1 1
1 2
2 2
2 2
1 1
2 1
2 2
2 2
1 2
2 1
2 2
2 1
1 1
1 1
2 1
1 2
1 2
2 2
1 2
1 1
1 2
1 1
2 2
1 1
1 2
1 1
2 1
1 2
2 2
2 1
2 1
1 2
2 1
1 1
1 2
1 2
2 1
2 1
2 2
1 2
2 2
2 1
2 1
1 2
1 2
2 2
2 1
1 1
2 1
2 2
2 2
1 1
1 2
1 1
2 2
2 2
1 1
1 1
2 1
2 2
2 2
1 2
2 2
2 2
1 1
1 1
2 2
2 2
1 1
1 1
1 2
2 1
1 2
2 2
1 1
2 2
1 2
2 1
1 2
2 2
2 1
1 1
1 2
2 2
2 2
1 1
2 1
2 2
1 2
2 1
1 2
1 1
1 2
2 2
2 2
1 2
2 2
1 2
2 1
2 1
1 1
1 2
1 2
1 1
2 2
2 2
1 2
1 2
1 2
2 2
1 1
1 1
1 2
1 1
1 2
2 1
2 1
2 1
1 1
2 2
1 2
2 1
1 2
1 1
1 1
1 1
1 2
1 2
1 1
2 2
1 2
2 1
2 2
2 1
1 2
1 1
1 1
1 2
1 2
2 2
1 1
2 1
1 1
2 1
1 1
1 1
2 1
1 2
2 2
1 1
2 1
1 2
2 1
1 2
2 1
2 2
1 2
1 1
1 2
1 2
1 2
1 2
2 1
2 1
2 1
1 1
1 2
2 2
2 2
1 2
1 2
2 2
2 2
1 1
1 2
1 1
2 1
2 1
2 1
2 2
1 1
1 2
1 1
2 1
1 1
1 2
1 2
1 2
2 1
2 2
2 2
2 2
1 1
1 2
2 1
2 2
2 2
1 2
2 1
1 2
1 2
2 1
1 2
1 1
1 1
1 1
2 2
2 1
1 2
2 1
1 1
2 1
2 2
2 1
2 2
2 1
1 1
2 2
1 1
1 1
1 2
1 1
1 1
2 2
1 2
1 1
2 1
1 1
2 1
1 1
2 1
2 1
2 2
1 2
2 2
2 2
2 1
1 2
2 2
2 1
1 2
1 2
2 1
2 1
2 1
2 2
1 1
2 1
2 1
2 2
2 2
1 1
1 2
2 1
2 2
1 2
1 2
2 1
2 2
1 2
2 1
1 1
1 1
1 1
1 1
2 2
2 2
1 1
1 1
1 2
2 2
2 1
1 1
2 2
2 1
2 1
2 1
2 1
2 1
1 2
1 2
1 2
1 1
2 2
2 1
1 1
1 2
2 2
2 2
1 2
2 2
2 1
2 2
1 2
2 1
1 2
1 1
2 1
2 2
1 1
1 2
2 1
2 2
1 2
2 1
2 1
1 2
2 1
2 2
1 2
2 1
1 1
2 2
2 2
1 1
1 2
2 2
1 2
1 1
2 2
1 1
2 2
1 2
2 1
2 1
2 2
1 1
2 2
1 2
1 1
1 1
1 2
2 2
1 2
2 1
2 1
2 2
2 1
2 2
2 2
1 2
2 2
2 2
1 2
2 2
1 1
1 1
1 2
1 1
1 1
2 1
2 2
2 2
2 1
1 1
2 2
2 2
1 1
1 2
2 1
1 2
2 2
2 2
2 1
1 1
1 1
2 2
2 2
2 1
2 1
2 1
2 1
1 2
1 2
2 1
1 1
2 1
1 2
2 2
2 2
2 2
1 2
2 1
2 2
2 1
1 2
2 2
2 2
1 2
1 2
1 2
2 1
2 2
2 1
2 2
2 1
2 1
1 2
1 2
1 2
2 2
2 2
2 1
2 1
2 1
2 2
2 1
2 2
1 2
2 1
2 2
1 2
1 2
1 1
1 2
2 2
2 2
2 1
2 2
2 1
2 2
1 1
2 2
1 1
1 1
1 2
2 1
1 1
1 2
1 2
2 2
2 1
2 2
1 1
1 2
1 2
1 2
1 2
2 2
2 1
2 2
2 2
1 1
1 2
1 1
2 2
2 1
1 1
1 2
2 2
1 1
1 1
2 1
2 1
1 2
1 2
1 1
2 1
1 2
2 1
2 2
2 2
2 1
2 1
2 2
2 2
2 2
2 2
2 1
1 1
1 1
1 2
2 1
1 1
1 1
2 2
2 1
1 1
1 2
1 1
2 1
2 1
2 2
1 2
1 1
2 1
2 2
1 2
2 1
1 1
1 1
2 2
2 2
2 1
1 2
2 2
2 1
2 2
1 2
1 1
2 1
2 2
1 1
1 1
2 1
2 1
1 2
2 1
1 1
2 2
2 1
2 2
1 2
2 2
2 2
1 1
1 1
2 1
1 1
2 2
1 1
2 2
1 1
1 1
2 2
1 2
1 1
2 2
2 2
1 2
2 1
1 2
2 2
1 2
1 1
2 2
1 2
2 1
2 2
2 2
1 2
2 2
2 2
1 2
1 2
1 1
2 1
2 2
2 1
1 1
2 1
2 2
1 1
2 1
2 1
1 1
1 2
1 2
2 2
2 2
1 1
2 1
1 2
1 1
2 1
1 1
2 2
2 2
1 1
1 2
1 1
2 2
1 1
2 2
2 1
1 2
2 2
1 2
2 2
1 1
1 2
1 1
2 1
2 2
1 1
2 1
2 1
1 1
2 2
2 1
2 2
1 1
2 2
1 1
2 2
2 1
2 2
2 2
2 1
2 1
2 2
2 2
2 2
1 1
1 2
1 2
1 1
2 1
2 2
2 1
2 2
2 1
1 1
2 2
1 2
1 2
2 2
2 1
1 1
1 2
2 2
1 2
1 1
1 2
1 2
2 1
2 2
2 2
1 2
1 1
2 1
1 2
2 2
2 2
2 1
2 1
1 2
1 2
2 2
2 1
2 2
2 1
2 2
1 1
2 2
1 1
1 1
2 2
2 1
2 2
2 1
2 1
2 2
2 1
1 1
1 2
2 2
2 1
2 2
1 1
2 2
1 2
2 1
1 2
1 1
2 2
1 2
2 1
2 1
1 1
1 2
2 1
1 1
2 2
2 2
1 2
2 2
2 2
1 1
1 2
2 1
1 2
1 1
2 2
2 1
1 1
1 2
2 2
1 1
2 2
1 1
1 2
1 1
1 1
2 1
2 1
1 1
1 2
2 1
1 1
2 1
1 1
1 1
1 2
2 1
1 2
2 1
1 1
2 1
1 2
2 1
1 1
2 1
2 1
1 1
2 2
1 1
2 2
1 1
2 1
2 1
2 1
2 1
2 1
2 1
1 1
2 2
1 1
2 1
2 2
2 2
2 1
1 1
1 1
1 1
2 2
2 2
2 2
2 1
2 2
2 2
2 2
1 1
1 2
2 1
2 2
2 2
1 2
1 1
2 1
2 1
1 1
1 2
1 2
2 2
2 2
1 2
1 1
1 1
1 1
2 1
2 2
1 2
2 1
2 2
2 2
2 1
2 1
2 2
1 1
1 2
1 2
2 2
1 2
2 2
2 2
2 1
2 1
2 1
1 1
2 2
2 1
2 1
2 1
2 1
1 2
2 1
2 2
2 2
2 2
2 1
2 2
2 1
2 2
2 1
1 1
1 2
2 1
2 1
2 2
1 2
2 2
1 1
1 1
2 2
2 2
2 2
1 2
1 2
2 1
1 1
1 1
2 2
2 1
2 1
1 1
2 2
1 1
2 2
2 1
2 1
2 2
1 2
1 2
1 2
2 2
1 1
2 1
1 2
1 2
2 1
1 1
2 2
1 2
1 2
1 2
2 2
1 1
2 2
2 2
1 1
2 2
2 1
1 2
1 2
1 2
1 1
1 1
1 1
2 1
1 2
2 2
1 2
2 2
1 2
2 1
2 2
2 2
2 2
1 1
2 2
1 2
2 1
1 1
1 2
1 2
1 2
1 2
1 1
2 1
1 2
1 1
2 2
1 2
2 2
2 1
2 1
1 2
2 1
2 1
2 2
2 1
1 1
2 1
2 2
1 2
1 1
2 1
1 2
1 2
2 2
1 1
1 2
1 1
2 1
2 1
2 1
2 1
2 2
2 2
1 2
2 2
1 1
2 2
1 1
1 1
1 2
1 2
2 1
1 2
2 2
1 2
1 1
2 1
1 1
2 1
2 2
1 2
1 2
2 2
2 2
2 1
2 2
2 2
2 1
2 1
1 1
1 2
1 2
2 2
1 2
2 1
1 2
2 2
1 2
2 2
2 1
1 2
2 2
1 2
1 2
2 1
1 2
1 2
1 1
1 2
1 2
2 2
1 1
1 2
1 2
2 1
2 1
2 2
2 2
2 1
1 1
2 2
2 2
2 1
1 2
1 1
2 2
1 2
1 1
1 1
2 2
1 1
1 1
2 1
2 2
2 1
2 1
1 1
2 2
1 2
2 2
2 1
2 2
1 1
2 2
1 1
1 2
2 1
2 2
1 2
2 1
1 1
1 1
1 1
2 1
1 2
2 1
2 1
2 2
2 1
1 2
1 2
2 2
2 1
2 1
2 2
2 1
1 1
2 2
2 2
1 1
2 2
2 2
2 2
1 1
1 1
2 1
1 1
1 2
2 2
1 1
1 1
2 1
1 1
2 2
2 1
2 1
1 1
1 1
2 2
2 1
2 2
2 1
1 1
2 2
1 2
1 2
1 2
1 2
1 2
2 2
1 1
1 1
2 2
2 2
1 1
2 2
1 2
1 1
1 1
2 2
1 2
1 2
1 2
2 2
2 2
1 1
1 1
2 2
2 2
2 1
1 1
2 1
2 1
2 2
2 1
2 2
1 2
2 2
1 1
1 1
1 2
1 2
1 1
2 2
2 1
2 1
1 2
1 2
2 2
2 2
2 1
1 2
1 1
2 1
2 2
2 2
2 2
1 2
2 2
2 1
2 2
2 2
2 1
1 1
1 2
2 1
2 1
1 1
2 2
2 2
2 2
1 1
2 2
2 2
1 1
1 2
1 1
1 1
1 2
1 2
2 2
1 1
1 1
1 2
1 2
2 2
2 2
2 1
2 1
2 1
2 2
2 1
2 2
1 1
1 1
1 2
1 2
1 1
1 1
1 2
2 1
2 1
2 2
1 1
1 1
2 1
1 1
1 2
1 2
2 1
1 2
1 2
1 2
2 2
2 1
1 1
2 1
1 1
2 2
1 1
2 1
2 1
1 1
1 1
2 2
2 2
2 1
1 2
1 2
2 1
2 1
1 2
1 2
2 1
1 2
1 1
1 1
1 1
1 1
1 2
2 1
1 1
1 1
1 2
2 1
2 2
2 1
1 1
1 1
2 1
2 2
2 1
2 2
2 2
2 2
1 2
2 1
2 1
2 1
1 1
1 1
1 2
2 1
2 1
2 2
1 1
1 1
1 1
1 1
1 2
2 2
2 2
1 1
2 2
2 2
1 2
2 2
2 1
1 1
1 1
2 2
1 1
1 2
2 1
2 2
1 1
1 2
2 2
1 2
1 2
2 2
1 2
1 1
2 2
2 1
2 2
2 2
2 1
1 1
2 2
1 1
1 2
2 2
2 1
1 1
1 1
1 1
2 1
2 1
1 2
1 1
1 1
2 1
1 1
2 1
1 2
2 2
2 2
2 2
2 2
2 1
2 2
1 1
1 1
2 1
2 1
2 1
2 2
1 2
1 1
1 2
1 2
2 2
1 2
1 1
2 1
1 1
2 2
2 2
2 1
1 2
1 2
2 2
2 1
2 1
1 2
2 2
2 2
1 1
1 1
2 2
2 1
2 2
2 2
1 1
1 2
2 2
2 1
1 1
2 1
1 1
2 1
1 2
1 1
1 2
1 1
2 2
2 2
1 1
2 1
1 2
1 1
1 2
2 1
2 2
2 1
1 2
1 1
1 2
2 1
1 2
2 2
2 2
1 1
1 2
2 2
2 1
1 1
1 1
1 2
2 2
2 2
1 1
1 2
1 2
2 1
2 2
2 1
2 1
2 2
1 1
1 1
1 1
1 2
2 1
2 1
2 2
2 2
2 2
2 2
2 1
1 2
2 1
1 2
1 2
2 2
2 2
2 1
2 1
1 2
2 1
1 2
1 2
2 1
1 1
2 1
1 1
1 2
2 2
1 2
2 2
2 2
1 1
1 1
2 2
1 2
1 2
2 2
2 2
1 2
1 1
2 1
2 2
2 1
2 1
2 2
1 1
2 1
2 1
1 1
2 1
2 1
2 2
2 2
1 2
1 1
2 1
2 2
2 2
2 1
2 1
1 1
1 1
2 2
2 2
2 1
1 2
2 1
2 2
2 1
2 2
1 2
2 2
2 2
1 2
1 2
1 2
2 1
1 2
2 1
2 2
1 1
2 1
2 1
1 2
2 2
1 1
2 2
2 1
1 2
2 2
2 2
2 2
2 2
1 2
1 1
1 2
2 1
2 2
1 2
2 1
1 1
1 1
2 2
2 2
1 1
2 2
2 2
1 2
1 1
2 2
1 1
1 2
1 2
2 2
1 2
2 2
1 1
1 2
1 1
1 2
1 1
2 1
2 1
2 2
1 1
1 1
2 2
1 2
1 2
2 1
2 1
2 1
2 1
1 2
2 1
1 2
1 1
2 1
1 1
2 2
2 1
2 2
1 1
2 2
2 1
1 2
1 2
1 1
1 1
1 1
2 2
1 1
2 1
2 2
2 2
2 2
2 2
2 1
2 2
1 2
1 1
1 1
1 1
2 2
2 2
1 2
2 2
1 2
1 2
1 2
1 1
2 1
2 1
2 2
1 1
1 2
2 2
2 2
2 1
1 2
2 1
1 1
1 1
1 1
2 2
2 2
2 2
1 1
1 2
2 1
1 1
1 2
1 2
1 2
1 1
2 2
2 1
2 1
1 1
2 2
2 2
2 2
2 1
1 1
1 2
1 2
2 1
1 2
1 1
2 1
2 1
2 2
1 2
2 1
2 1
2 1
1 1
2 2
2 2
1 1
1 1
1 1
1 2
2 2
1 1
2 2
2 2
1 2
2 2
1 1
1 2
1 2
2 1
1 2
2 1
1 1
1 2
2 2
1 2
1 1
2 1
1 1
2 2
1 1
1 1
1 1
1 2
2 2
2 2
1 2
2 2
2 2
1 2
2 1
1 1
2 2
2 2
1 2
2 1
2 1
2 2
1 1
2 2
1 2
1 1
1 1
2 2
1 2
2 1
1 1
1 1
1 2
1 1
1 2
1 2
1 1
2 2
1 2
1 1
1 1
1 1
1 2
1 2
1 2
2 1
1 2
2 2
2 1
1 1
1 2
1 2
2 2
2 1
1 1
1 1
1 2
2 1
1 1
1 2
1 2
2 1
2 2
2 2
1 2
2 2
2 2
1 1
2 2
2 2
1 2
1 2
1 1
1 1
1 1
1 1
2 1
2 2
2 2
2 1
1 2
2 2
1 2
1 2
2 1
2 1
2 2
2 2
2 1
2 2
2 1
1 2
2 1
2 1
1 2
1 1
1 1
1 1
2 1
2 2
2 2
2 2
2 2
1 2
2 1
2 2
1 2
2 1
2 2
1 1
2 1
1 2
1 1
2 2
2 1
2 1
2 1
1 1
1 1
2 1
2 1
1 1
2 1
2 2
2 1
2 1
1 1
1 1
2 1
2 1
2 1
1 1
2 2
1 2
1 1
1 1
1 2
2 1
1 2
2 1
2 2
2 2
2 2
2 2
2 1
2 1
1 2
2 1
1 1
2 1
1 2
1 2
1 2
2 1
1 2
1 1
2 2
2 2
2 2
2 1
1 1
1 1
1 1
1 1
1 2
1 2
2 2
1 1
2 2
2 1
1 1
1 2
2 2
2 2
2 1
2 1
1 2
2 1
1 1
2 1
2 1
1 2
2 1
1 2
2 2
1 2
1 2
2 2
1 2
2 2
2 1
2 1
1 2
1 1
2 1
2 1
2 2
2 1
2 1
2 2
2 2
1 1
2 2
2 1
1 2
1 2
1 1
1 1
2 2
1 2
1 1
1 2
1 1
1 1
1 1
2 1
1 2
2 2
1 2
1 2
2 2
2 2
1 1
1 1
2 1
2 2
1 1
2 2
1 2
2 2
2 1
2 1
2 2
1 1
2 2
2 2
2 2
2 2
1 2
1 2
2 1
2 1
1 2
2 2
1 2
1 2
2 2
2 1
1 2
1 1
2 1
2 1
2 1
1 1
2 2
1 2
1 1
1 1
2 1
2 1
2 1
1 1
1 2
2 1
2 2
1 1
2 2
1 1
2 1
1 1
2 2
1 2
2 2
2 1
2 2
1 1
1 2
1 1
1 2
2 2
1 1
1 2
1 2
2 1
1 1
2 2
1 2
1 2
1 2
2 1
1 2
1 2
2 2
2 1
1 2
2 2
2 1
1 1
2 2
1 2
1 2
1 2
1 1
2 1
2 2
1 2
2 2
1 1
1 1
1 2
2 2
1 2
1 2
1 1
2 1
2 1
2 2
2 2
1 1
1 2
2 1
1 2
2 1
2 2
2 2
2 1
1 2
2 2
2 1
2 2
2 2
1 1
2 1
2 1
2 2
2 2
2 1
2 2
1 1
2 2
2 2
2 2
1 2
2 2
1 1
1 2
2 1
1 2
2 1
2 2
2 2
1 2
1 1
1 1
2 2
1 2
2 1
1 1
2 1
2 2
2 2
1 1
1 2
1 2
2 1
2 2
1 1
1 1
1 2
1 2
1 2
1 1
1 1
1 2
2 2
2 2
1 2
1 2
2 1
2 1
1 1
2 1
1 2
2 2
1 1
1 1
2 2
2 1
1 2
2 2
1 2
1 2
2 2
2 2
1 2
1 1
1 1
1 1
1 2
2 1
1 2
1 1
2 2
1 1
2 1
1 2
1 1
2 1
1 1
2 1
1 1
1 1
1 1
1 2
2 1
2 2
2 1
2 2
1 1
2 2
1 2
2 2
1 1
2 2
2 1
1 1
2 1
2 2
2 1
1 2
2 2
1 2
1 1
1 2
2 2
2 2
2 2
2 1
2 1
1 1
1 2
1 1
2 1
2 2
1 1
2 1
1 1
2 1
2 2
2 1
2 2
1 2
1 1
2 1
2 1
1 1
1 1
2 1
2 1
1 2
1 1
2 1
2 2
1 1
2 2
1 2
1 1
2 1
2 2
1 2
2 1
2 2
1 1
1 2
1 1
2 1
2 2
2 2
1 1
2 1
1 1
2 1
2 1
2 1
1 1
2 2
1 1
2 1
1 1
1 2
2 2
1 1
2 2
1 2
1 1
2 2
2 1
1 2
2 1
2 1
2 2
1 2
2 2
1 2
1 1
2 2
1 2
1 1
1 1
2 2
1 2
2 2
1 1
2 1
1 1
1 2
2 2
1 2
2 2
1 2
1 1
1 1
2 1
1 2
1 2
1 2
1 1
1 2
2 1
2 2
1 2
2 2
1 1
1 1
1 1
2 1
1 2
1 2
2 2
1 1
2 1
2 2
2 2
1 1
1 1
2 2
1 1
2 1
1 1
1 2
2 2
2 2
1 2
1 2
2 2
1 2
1 2
2 2
1 1
2 2
2 1
1 2
2 1
1 2
1 2
1 1
1 1
2 2
2 1
2 2
2 1
1 2
1 1
1 2
2 1
2 2
1 1
1 2
2 2
1 2
1 1
2 1
2 2
2 2
2 2
1 2
1 2
1 2
2 1
1 1
1 1
1 2
2 2
2 1
2 1
2 2
2 1
1 1
2 2
1 1
2 2
1 1
1 1
1 1
1 2
2 1
1 2
2 1
2 2
1 2
2 1
1 1
1 1
2 2
2 1
2 2
2 1
2 2
2 1
2 2
1 1
2 1
2 2
1 1
2 1
1 1
1 1
2 2
1 1
2 2
2 2
2 2
2 2
2 1
2 2
2 2
1 1
1 2
1 1
2 2
2 2
1 2
1 2
1 2
1 2
1 2
2 2
2 1
2 2
2 1
1 1
1 2
2 2
2 2
1 2
2 2
2 2
2 2
1 1
2 1
1 1
2 2
2 2
2 1
2 2
2 2
1 2
2 2
1 2
1 2
1 2
2 2
2 1
1 2
2 2
1 1
2 2
2 2
1 1
1 2
2 2
1 2
1 2
1 2
1 2
2 2
2 2
2 1
1 1
2 2
1 2
2 2
1 2
2 2
1 2
1 1
1 2
2 2
2 1
1 2
1 1
2 1
2 2
1 1
1 2
1 2
1 1
2 2
2 1
2 2
1 1
2 1
2 2
1 2
2 1
1 1
1 2
2 1
1 2
2 2
2 2
2 1
1 1
1 1
2 2
1 1
1 1
2 2
2 2
1 1
1 1
1 1
1 2
2 1
2 1
1 1
2 1
1 1
2 2
1 1
2 1
2 2
2 1
2 2
1 2
1 2
2 2
2 1
1 2
1 2
1 1
2 2
2 2
1 2
1 1
2 1
2 2
2 2
1 2
1 2
2 2
2 1
1 2
2 2
1 2
2 1
1 2
1 1
1 2
1 2
1 2
1 2
2 2
1 1
1 1
2 1
2 1
2 2
1 1
1 2
1 1
1 2
2 2
1 1
1 2
2 1
2 1
1 2
2 2
1 1
2 2
2 1
1 2
2 2
1 2
1 1
1 2
2 2
1 2
2 1
1 1
1 2
1 2
1 1
1 2
2 1
2 1
2 1
1 1
1 1
1 1
1 2
2 2
1 1
1 1
1 1
2 1
2 2
2 2
1 2
2 1
1 1
2 2
1 1
1 1
2 1
1 1
2 1
2 2
1 1
2 1
1 2
2 1
1 2
1 2
2 1
2 2
2 2
1 1
2 1
1 2
1 2
2 2
1 2
1 2
1 2
1 2
1 1
2 1
2 1
2 2
2 2
2 2
2 2
2 1
1 1
2 1
2 1
1 2
1 1
2 2
1 2
1 1
2 2
1 2
1 1
2 1
1 2
1 2
2 1
1 2
1 2
1 1
2 2
1 2
1 2
1 2
1 1
1 2
2 2
2 1
2 2
2 2
1 1
1 1
1 1
2 1
1 2
2 1
2 1
1 1
2 1
1 2
1 1
1 1
1 2
1 1
1 2
2 2
2 1
2 1
2 2
1 2
1 2
2 2
2 2
2 2
2 1
2 1
1 2
2 1
2 2
1 1
1 1
2 2
2 1
1 2
2 2
1 2
1 2
1 2
1 1
1 1
1 2
1 2
1 1
2 2
2 2
2 1
1 1
1 1
2 2
1 1
1 1
1 1
1 2
2 1
2 1
1 2
2 1
2 2
1 2
2 2
2 2
2 1
1 1
2 1
2 1
2 1
2 2
1 2
2 2
1 1
1 1
2 2
1 1
2 1
1 2
1 2
1 2
1 1
1 2
2 1
2 2
2 2
1 1
2 1
1 2
1 2
1 2
2 1
1 1
2 1
2 2
1 1
1 1
1 1
1 2
2 1
2 2
2 2
1 1
1 2
1 2
1 2
1 1
2 2
2 1
1 1
2 1
1 2
1 1
1 1
1 1
1 1
1 1
1 1
1 2
1 1
2 1
1 2
2 2
1 2
2 1
2 2
2 2
1 2
2 1
1 2
2 1
2 1
2 2
2 2
1 2
1 2
2 2
2 2
2 1
1 2
2 1
2 2
2 1
2 1
1 1
1 1
1 2
1 2
2 2
2 2
1 1
2 2
2 1
1 2
1 2
1 2
2 2
2 2
1 2
2 2
1 2
1 1
1 1
2 2
2 1
1 1
1 2
1 2
2 2
2 1
2 1
2 1
1 1
2 1
2 2
1 2
2 2
2 2
1 2
2 2
1 2
2 2
1 1
2 2
2 1
2 2
1 1
2 1
2 2
2 2
1 1
1 1
2 2
1 1
1 2
1 1
1 1
2 1
1 1
2 2
1 2
2 1
1 2
1 2
2 2
1 1
2 2
2 1
1 1
1 1
1 2
2 2
1 2
2 2
2 1
2 2
2 2
2 1
1 2
2 1
2 2
1 2
2 1
2 2
2 1
2 2
2 2
1 2
1 1
1 2
2 1
2 2
2 2
2 2
1 2
2 2
1 2
2 1
2 2
2 1
1 1
2 2
1 1
2 1
2 2
2 2
1 2
1 2
1 2
1 2
2 2
1 2
1 1
2 2
1 1
1 1
1 2
2 1
1 2
2 1
2 1
2 1
1 1
2 1
2 2
2 2
1 2
2 2
2 1
1 2
2 1
1 1
1 1
2 2
1 1
2 2
2 1
2 2
1 1
1 1
1 2
2 2
1 1
1 2
1 1
2 2
2 1
1 1
2 2
1 2
1 2
1 2
1 1
1 2
2 1
2 1
2 2
1 2
1 1
2 2
1 1
2 1
2 1
2 1
1 1
1 1
1 1
2 1
1 2
1 2
1 1
2 1
2 2
2 2
1 2
1 1
2 1
1 2
2 2
1 2
2 2
1 1
2 1
2 2
1 1
2 1
1 1
1 2
2 2
2 2
2 2
2 1
1 1
2 1
1 1
1 1
1 1
2 2
1 2
1 2
2 1
1 2
1 2
2 2
1 1
2 1
2 1
2 2
2 2
2 1
1 1
1 2
2 1
2 1
1 1
1 2
1 1
2 1
1 1
2 2
2 2
1 1
1 2
2 1
1 2
1 1
2 1
1 1
2 2
1 1
1 1
2 2
2 1
2 1
2 2
2 2
2 2
1 1
2 1
1 2
1 2
1 1
2 2
1 1
2 2
1 2
2 2
1 1
2 2
2 2
2 2
1 2
2 1
1 1
1 2
2 2
1 2
2 2
2 1
2 2
1 1
1 1
2 2
1 2
2 1
1 1
1 2
1 1
2 1
2 2
2 2
1 1
1 1
2 2
2 1
2 2
2 1
2 1
1 1
2 1
2 2
2 2
1 1
2 1
2 1
1 2
2 1
2 2
1 1
1 2
2 2
1 1
2 1
1 1
1 1
1 2
2 2
2 1
2 2
2 1
2 2
2 1
1 2
2 2
2 1
1 2
1 2
1 1
1 1
1 2
1 2
2 2
1 2
2 2
1 1
2 2
1 1
2 1
1 1
2 1
2 2
2 2
2 2
1 2
1 1
1 1
2 2
1 1
1 1
2 2
2 2
1 2
2 1
2 2
2 1
1 2
2 1
1 2
2 1
2 2
1 1
1 1
2 1
2 1
2 2
2 2
2 1
1 2
1 2
2 2
1 1
1 1
1 1
2 2
2 2
2 1
2 1
2 2
1 1
2 2
2 1
2 2
2 2
2 2
2 1
1 2
2 1
2 1
2 2
2 1
1 2
2 1
2 2
1 2
1 2
2 1
1 1
1 2
2 2
2 1
2 1
2 1
2 1
2 2
1 2
1 2
2 2
2 2
1 2
1 1
1 2
1 1
1 1
1 2
2 1
1 2
1 2
1 1
2 1
2 1
2 2
2 2
1 2
2 2
2 1
2 1
2 2
2 1
1 1
2 1
1 2
1 1
2 1
1 2
2 1
2 1
1 2
1 1
1 1
2 1
2 1
2 2
1 2
2 1
2 1
1 2
1 2
2 1
2 1
2 2
2 2
2 2
1 2
2 1
2 2
2 1
1 1
2 2
1 1
1 1
2 2
1 1
2 2
2 2
2 1
1 1
2 2
2 1
2 1
1 1
1 2
1 1
2 1
2 2
2 2
2 1
1 1
1 2
2 2
1 2
2 1
2 1
1 1
1 1
2 2
2 1
2 2
2 1
1 2
1 2
1 1
1 2
2 1
1 1
1 2
1 2
2 1
1 1
2 1
1 1
1 1
2 2
1 2
2 1
2 1
1 2
1 2
2 1
2 1
1 1
2 1
2 1
2 1
2 1
2 1
1 1
1 2
2 2
1 1
1 1
1 1
2 1
2 1
2 1
1 1
1 2
2 1
2 2
1 1
1 2
1 2
2 1
2 2
2 1
1 2
1 2
1 1
2 1
1 1
1 1
1 2
2 1
2 1
1 1
2 2
1 1
1 1
2 1
1 1
2 2
2 2
1 2
1 2
1 1
2 2
1 2
1 2
2 2
1 1
1 2
2 1
2 2
2 2
1 1
2 2
2 1
2 1
2 1
1 2
2 1
2 2
1 2
1 1
1 1
2 2
2 2
1 1
2 1
2 2
1 1
2 1
1 2
1 1
2 1
1 1
2 1
2 1
2 1
2 2
2 1
2 1
2 2
2 2
2 1
2 1
2 1
1 1
1 1
2 1
2 2
2 2
2 2
2 2
2 2
1 1
2 1
2 2
2 2
1 1
1 1
2 1
1 2
1 1
1 2
1 2
1 1
1 1
1 2
1 2
1 1
1 1
2 1
2 1
2 1
1 2
2 1
2 2
1 2
2 2
2 1
2 2
2 2
1 2
2 1
1 1
2 1
1 2
2 1
1 1
2 2
2 1
1 2
1 1
2 1
1 2
2 2
2 1
1 1
2 2
2 2
2 2
1 1
1 1
2 2
2 1
2 2
2 1
1 2
2 1
2 2
1 2
2 2
1 2
2 2
2 1
2 2
2 2
1 2
2 1
2 2
2 1
2 2
1 1
2 1
1 2
2 1
1 2
1 1
2 1
2 1
1 1
2 1
1 2
1 2
2 1
2 2
1 2
1 1
1 2
2 2
2 2
1 1
1 2
1 1
2 2
1 1
1 2
1 2
1 2
2 2
1 2
2 1
1 1
1 1
2 2
2 2
1 1
2 2
1 2
1 2
2 2
2 2
2 1
1 2
1 2
1 1
2 1
2 1
1 2
1 2
1 1
1 1
2 2
1 1
1 2
1 2
1 1
2 2
1 1
1 2
1 2
1 1
1 1
1 1
2 1
1 2
2 2
2 1
1 1
2 2
1 2
2 1
1 2
2 2
1 1
1 2
1 1
2 1
2 2
2 1
2 1
2 1
1 2
1 2
2 2
2 1
1 2
2 2
2 2
2 1
2 1
1 1
1 2
1 2
2 2
2 1
2 1
1 2
1 2
1 1
2 2
2 1
1 1
1 2
2 2
1 1
2 1
2 2
2 1
1 1
1 1
1 1
1 2
1 2
2 2
1 2
1 1
1 2
1 2
1 2
2 1
2 2
2 2
1 1
1 1
1 2
1 2
2 1
1 1
2 2
1 1
2 1
2 2
1 2
2 1
1 2
2 2
1 2
1 1
2 1
1 1
1 2
2 1
1 2
2 2
2 2
1 2
1 1
2 1
1 1
1 2
2 2
1 2
2 1
1 2
1 2
1 2
1 2
2 1
1 2
1 1
1 2
2 2
2 2
1 2
2 2
2 1
1 2
1 1
2 2
2 1
2 1
1 1
1 2
2 2
1 1
1 2
1 2
2 1
2 1
1 1
1 2
2 1
2 2
1 1
1 2
1 2
2 2
1 1
2 1
1 2
2 1
1 1
2 1
2 2
1 1
2 2
1 2
1 1
1 2
1 1
2 1
2 1
1 2
2 1
2 2
1 1
2 2
1 2
2 1
2 1
2 2
2 1
1 1
2 2
1 2
2 2
1 1
2 1
2 1
1 1
2 1
2 1
1 1
1 2
2 2
1 1
2 2
1 2
1 1
1 1
1 2
1 2
1 1
1 1
1 2
1 2
2 1
1 2
1 2
1 1
1 1
2 2
1 2
2 1
2 2
2 2
2 2
2 1
1 2
2 2
1 2
2 2
1 2
1 1
2 1
2 1
2 1
1 1
1 1
2 1
2 2
1 1
2 2
2 2
1 2
2 2
2 2
2 2
2 1
2 1
1 2
1 2
2 1
1 2
1 2
2 1
1 2
2 2
2 1
2 1
1 1
1 1
2 2
1 2
2 1
2 2
1 2
1 2
2 2
2 1
1 1
2 2
2 1
2 1
2 2
2 1
2 1
2 1
1 2
1 1
1 2
1 1
1 1
2 1
1 2
2 2
2 2
1 2
1 2
2 2
1 1
1 1
2 2
1 1
2 1
2 2
2 1
1 1
2 2
1 2
2 2
1 2
2 2
2 1
1 2
2 1
1 1
2 2
2 2
1 1
2 1
1 1
1 1
1 1
1 2
2 1
2 1
2 1
1 2
2 2
1 2
2 2
2 1
1 2
2 2
1 1
2 1
1 2
2 1
1 2
2 1
2 2
2 1
1 1
2 2
2 2
2 2
1 1
2 1
2 2
2 2
1 2
2 1
1 1
1 2
1 2
2 2
1 2
2 1
2 2
1 1
1 2
2 1
2 1
2 1
2 1
2 2
1 2
1 2
2 1
2 1
2 1
2 2
1 1
2 2
2 2
2 1
1 2
2 2
2 2
2 1
2 2
2 2
2 2
1 2
1 1
2 2
1 2
2 1
1 2
1 1
1 1
2 2
1 2
1 1
1 1
1 2
1 1
2 2
2 1
1 1
1 1
1 1
1 2
1 1
2 1
2 1
2 1
1 2
1 2
1 2
1 1
2 2
2 2
2 1
2 2
2 1
1 1
1 2
1 2
1 1
1 2
2 1
1 1
2 1
1 1
1 2
2 2
2 2
1 1
2 1
1 1
1 1
1 1
1 2
2 2
1 2
2 2
1 2
1 1
1 1
2 1
2 1
1 2
2 2
1 1
1 2
1 1
2 2
2 2
2 2
1 2
1 1
1 2
1 2
2 2
1 1
1 2
2 2
1 2
1 2
1 2
1 1
2 2
1 2
2 2
2 2
1 2
1 1
2 2
2 1
2 1
1 1
2 2
1 1
1 2
1 1
2 1
1 2
1 2
1 2
2 1
2 2
2 2
2 2
1 1
2 2
2 2
2 2
2 1
1 1
2 1
2 2
2 1
1 2
2 1
2 2
1 1
1 2
2 1
1 1
2 1
2 2
1 1
2 2
1 2
1 2
2 2
2 2
1 2
1 1
2 1
2 2
2 2
2 2
2 2
2 2
1 2
2 1
2 2
2 2
2 1
2 1
2 1
1 1
2 2
2 1
1 1
2 2
1 2
1 2
2 2
1 2
1 2
1 1
2 1
1 1
2 2
1 2
2 2
2 1
1 2
2 1
1 2
2 1
2 1
1 2
1 2
2 1
2 1
2 2
1 1
2 2
1 2
1 2
1 1
1 1
2 1
2 2
2 2
2 2
2 2
2 2
1 1
1 2
1 1
1 1
2 2
2 1
2 1
1 1
2 1
2 2
2 1
1 2
2 2
2 1
1 1
1 1
1 1
1 1
1 2
2 2
2 2
2 1
2 1
2 1
2 1
2 2
2 2
1 2
2 2
2 2
1 1
1 2
2 1
2 1
2 1
2 2
1 2
1 2
1 1
1 2
1 1
2 2
1 2
1 2
1 2
1 1
1 1
2 2
2 2
2 1
2 1
2 1
1 1
2 2
1 2
1 1
1 1
2 2
2 2
1 1
2 2
2 1
1 2
2 1
2 2
2 1
1 1
1 2
1 2
2 1
1 2
1 1
2 2
2 1
2 1
2 1
1 2
2 2
2 1
1 1
2 1
2 2
1 2
2 2
1 1
1 1
1 1
2 2
2 1
2 1
2 2
2 2
2 1
2 2
1 1
2 2
2 1
2 2
2 1
2 1
2 2
2 1
1 2
2 1
2 1
1 1
2 2
1 2
1 2
1 2
2 1
1 2
1 2
2 1
1 2
1 2
2 1
2 2
2 1
1 2
2 2
1 2
2 2
1 1
1 2
2 2
1 2
1 2
1 2
2 1
2 1
1 1
1 1
1 2
1 1
2 1
2 1
1 1
1 1
1 2
1 1
1 1
1 2
1 2
2 2
1 1
1 2
1 2
2 1
1 2
1 2
2 1
2 1
1 2
2 2
1 1
1 2
2 2
1 1
2 1
2 2
1 2
1 2
2 1
1 1
2 2
1 1
2 2
1 2
1 1
1 1
2 2
2 1
1 1
2 2
1 1
2 2
1 1
1 2
1 1
1 2
2 2
1 1
1 2
1 1
1 2
1 2
2 2
1 2
2 2
1 2
2 2
2 1
2 2
1 1
2 1
2 2
2 2
2 2
1 2
2 2
2 1
2 1
1 1
1 2
1 1
2 1
2 1
1 2
2 1
1 1
2 1
1 2
1 2
2 2
2 1
1 1
2 2
1 2
1 1
2 1
1 2
1 2
2 2
2 1
2 1
1 2
1 2
2 1
1 1
1 2
1 1
1 2
2 1
2 1
1 1
2 1
1 1
1 1
2 1
1 2
2 2
1 1
2 2
1 2
1 2
1 1
2 2
1 2
1 2
2 1
2 1
1 2
1 2
1 1
1 2
1 1
1 1
1 1
2 1
1 1
1 1
2 2
2 1
2 2
2 2
1 1
2 2
2 2
1 1
2 2
2 1
2 1
1 2
1 1
2 1
1 2
1 1
1 2
2 2
2 2
1 2
2 1
1 2
1 2
2 2
2 2
1 2
2 2
2 2
1 2
1 1
2 1
2 1
2 2
1 1
2 2
2 2
2 1
2 1
1 2
2 1
1 2
1 2
1 2
1 2
1 1
1 1
1 2
1 2
1 2
2 1
1 2
2 2
1 2
1 2
1 2
1 2
2 2
2 2
2 2
1 2
2 2
1 2
2 2
1 2
2 1
2 1
1 1
2 2
2 2
1 2
2 1
2 2
1 2
1 2
2 2
2 1
1 1
2 1
1 1
1 2
2 1
2 1
2 1
2 1
1 1
2 2
2 1
2 1
1 1
1 1
2 1
1 1
1 1
2 2
1 2
1 2
2 2
2 1
2 2
1 2
2 2
2 2
2 1
2 1
2 2
2 2
1 1
1 2
2 1
2 1
1 1
1 1
2 2
1 2
2 1
1 1
1 1
2 1
1 1
2 2
1 1
1 2
2 1
1 2
2 1
1 2
2 2
1 1
2 1
2 2
2 1
2 2
2 2
1 2
1 1
1 1
1 1
2 2
2 1
2 1
1 1
1 2
1 1
1 1
1 2
1 1
1 1
2 1
2 2
2 1
2 2
1 1
1 1
2 1
1 1
1 1
2 2
2 2
2 2
2 1
1 1
2 1
2 2
1 2
1 2
1 1
2 1
1 2
2 1
2 2
2 2
2 1
2 2
2 2
2 2
2 2
1 1
2 2
2 2
2 1
1 2
2 2
2 1
1 1
2 1
2 1
2 2
2 2
1 1
1 1
1 2
1 2
1 2
1 1
2 1
2 1
1 2
1 2
1 1
1 1
2 2
2 2
1 2
1 1
2 2
1 2
1 1
2 1
2 1
2 1
2 2
2 2
1 1
2 2
2 1
2 2
1 1
1 1
2 1
2 2
2 2
2 1
1 1
2 1
2 1
1 2
2 1
2 2
2 2
1 1
1 2
1 1
1 2
1 2
2 1
2 2
1 1
2 1
1 1
2 1
1 1
1 1
1 2
1 1
2 2
1 1
2 1
1 2
1 1
1 1
2 2
2 2
1 2
1 1
1 2
1 2
1 2
2 1
1 2
2 1
2 2
2 1
1 2
1 1
1 2
2 2
2 1
2 1
2 1
1 2
1 1
1 2
1 2
2 2
1 1
2 1
1 2
2 2
1 2
2 1
1 1
2 2
2 2
2 1
2 1
1 1
2 2
2 2
2 2
1 2
1 1
1 2
2 1
1 2
1 1
1 1
2 1
1 2
1 2
1 2
1 2
2 2
2 2
2 1
1 2
2 1
2 2
2 1
1 1
1 1
1 1
2 2
1 1
2 2
2 2
1 2
2 1
1 2
1 1
2 2
1 1
2 2
2 1
2 2
1 2
2 2
1 2
2 1
2 1
1 2
1 1
1 1
1 2
2 1
1 1
2 1
1 2
1 2
2 2
1 1
1 1
2 1
1 1
2 2
2 1
2 2
2 1
2 1
1 2
1 2
2 1
2 2
1 1
2 2
2 1
2 2
1 2
2 1
2 2
2 2
1 2
1 2
1 1
2 2
1 2
1 2
2 2
1 1
1 1
2 1
2 2
1 1
1 2
1 2
2 2
2 2
2 2
1 1
2 1
1 2
2 1
2 1
1 1
2 2
2 2
2 1
2 1
1 2
1 2
2 2
1 1
2 2
1 2
1 1
1 1
2 2
1 2
1 1
1 2
2 1
1 1
2 2
1 1
2 1
1 2
2 1
2 1
1 1
1 2
1 2
1 1
2 1
2 2
2 2
1 1
2 2
1 1
2 1
1 1
1 2
2 2
1 2
1 2
1 1
2 1
2 1
2 2
1 2
2 2
2 2
1 1
2 2
2 2
1 1
1 2
1 1
2 1
1 1
2 1
2 2
1 2
2 1
1 2
2 2
1 1
2 1
1 1
1 1
1 2
1 2
2 1
1 1
1 1
2 2
1 2
2 2
2 2
2 2
1 2
1 1
2 1
1 2
2 2
1 1
1 2
2 2
1 1
1 2
1 1
1 1
1 2
1 2
2 1
2 1
2 2
1 2
2 1
2 2
2 2
2 2
2 1
1 1
2 1
2 1
1 2
2 1
2 1
2 1
1 2
1 1
2 2
2 1
1 2
2 1
2 1
1 1
2 2
2 2
2 2
1 2
1 1
2 2
2 2
1 2
2 1
1 2
2 2
2 1
1 2
2 2
2 2
1 1
1 1
2 2
2 2
2 2
1 1
2 2
1 1
2 1
1 2
1 2
1 2
1 1
2 2
2 2
2 2
2 2
1 2
2 1
2 1
1 1
2 1
1 2
1 1
1 2
1 1
2 2
1 2
1 2
2 2
1 1
2 2
2 2
2 2
2 1
2 1
1 1
2 2
2 1
2 2
2 2
2 1
2 1
1 2
2 1
1 1
1 2
2 2
2 1
2 1
2 2
2 1
2 1
1 2
2 1
1 2
1 2
1 2
2 2
2 2
2 1
2 2
2 1
2 1
1 1
2 2
2 1
2 1
1 2
1 1
2 1
2 2
1 1
1 1
1 1
2 2
2 1
1 1
2 1
2 1
1 1
2 1
1 2
2 1
2 2
1 2
2 1
1 1
1 1
1 2
2 2
1 1
2 2
1 2
2 2
1 2
2 2
2 1
2 1
1 1
1 2
2 1
1 1
1 2
2 2
1 1
2 2
1 2
1 2
1 2
1 2
2 2
1 1
1 2
2 1
2 2
1 1
1 1
1 2
2 1
2 1
2 2
1 2
2 1
2 1
2 2
2 1
1 1
1 2
2 2
2 1
2 1
1 2
2 1
2 2
2 1
2 1
1 2
1 1
1 1
1 1
1 1
1 2
2 1
1 1
2 2
1 2
2 1
2 1
1 2
1 1
2 2
2 2
1 1
1 2
1 1
2 1
2 2
1 1
1 2
2 2
1 1
2 1
1 1
2 2
1 1
2 2
1 2
2 1
1 2
1 1
1 1
2 2
1 2
2 2
2 2
1 2
2 1
2 2
1 2
1 2
2 1
1 2
2 1
2 1
2 1
2 1
2 2
2 2
1 1
2 2
1 1
1 2
2 2
2 1
1 1
2 1
1 2
2 2
2 2
2 1
2 1
2 2
1 2
2 1
1 1
2 1
1 2
1 2
2 1
2 2
2 2
1 2
1 2
1 1
2 1
1 1
2 2
2 2
2 1
2 2
1 1
1 2
1 1
2 1
2 1
1 1
2 1
2 2
1 2
2 1
1 2
1 2
2 1
2 2
1 2
2 2
2 2
2 2
2 2
2 2
2 2
2 1
2 2
1 1
1 1
1 1
1 1
1 1
2 2
1 2
1 2
1 1
1 1
2 1
2 1
1 2
1 2
1 1
2 2
1 2
1 1
2 1
1 2
2 2
2 1
2 1
2 1
2 2
1 1
2 2
1 2
2 1
1 2
2 2
2 1
2 1
1 1
2 1
1 2
1 2
1 2
1 2
2 1
1 1
1 2
2 2
1 1
2 2
1 1
1 2
2 1
2 2
2 2
1 2
1 2
2 1
2 1
1 1
2 1
2 2
2 2
2 1
1 2
1 1
2 2
2 1
2 1
1 2
1 1
1 1
2 2
1 2
1 1
1 1
1 2
1 1
2 2
2 2
1 1
1 2
1 2
2 2
2 1
1 1
1 1
1 1
1 2
2 1
1 2
2 2
2 2
1 2
2 1
1 2
2 2
2 2
2 1
2 1
1 1
1 2
1 2
2 1
2 2
1 2
1 2
2 1
2 1
1 2
2 2
2 2
1 2
2 2
2 1
2 2
2 1
1 1
1 1
2 1
1 1
2 2
2 2
2 2
2 2
2 1
2 1
1 2
2 1
1 1
2 2
2 2
1 1
1 2
1 2
1 1
1 2
2 2
2 1
2 1
1 1
2 2
1 2
2 2
1 1
1 2
1 2
2 1
1 2
2 2
1 1
2 1
1 1
1 2
2 2
1 1
1 2
1 2
1 1
1 1
2 2
1 1
1 2
1 2
2 2
1 1
1 2
2 2
1 2
2 1
1 2
2 1
2 2
1 2
1 1
1 1
1 2
1 1
2 1
1 1
2 1
2 1
1 1
2 1
2 1
1 1
2 2
1 1
2 1
2 1
2 1
2 2
1 2
2 1
1 2
2 1
2 2
2 1
2 1
1 2
2 1
1 2
1 2
2 1
2 1
2 2
2 1
1 1
1 1
2 2
1 2
2 1
2 1
1 1
1 2
1 2
2 1
2 2
2 1
2 2
2 2
1 2
1 2
2 1
1 1
2 2
2 2
2 1
2 2
2 2
1 2
1 1
2 1
2 1
2 1
1 2
1 1
1 1
1 2
1 2
1 1
2 2
2 1
2 2
2 2
1 1
1 1
2 2
2 2
1 1
1 1
1 2
1 1
1 2
2 1
1 2
2 1
1 2
2 1
1 1
2 1
1 2
1 1
1 2
1 1
2 1
2 1
2 1
1 2
2 2
1 1
1 2
2 2
1 2
2 1
2 2
2 1
1 1
1 1
2 2
2 1
2 1
2 1
2 1
2 2
2 1
2 1
2 1
1 1
2 2
2 2
1 1
1 1
2 1
1 1
2 1
2 2
1 2
1 1
1 2
1 1
1 1
1 2
1 1
2 2
2 2
1 1
2 2
2 2
1 2
1 1
2 1
1 2
1 1
1 2
2 2
2 2
2 1
2 2
1 2
1 2
1 1
2 1
2 2
1 2
1 1
2 2
2 2
2 1
1 2
2 1
2 1
1 1
1 2
1 1
1 1
1 2
1 1
1 2
2 1
2 1
2 1
2 1
1 2
1 1
2 2
1 1
2 2
1 1
2 1
2 1
2 1
2 2
1 1
2 1
2 2
2 1
2 1
2 2
2 2
2 1
1 1
1 1
2 2
2 1
2 1
1 1
1 1
2 2
1 1
2 1
2 1
1 1
1 2
2 1
2 1
1 2
2 2
1 2
2 2
2 2
2 1
1 2
1 1
1 1
2 2
1 1
2 2
2 1
2 2
1 1
1 1
2 2
2 1
2 1
2 1
1 2
1 2
1 2
2 2
2 1
1 1
2 2
2 1
2 1
2 1
1 1
2 2
1 2
2 2
2 2
2 1
1 1
2 1
1 2
2 1
2 2
1 1
1 2
1 1
2 1
2 1
2 1
1 2
2 1
2 1
2 1
2 2
2 2
1 2
1 1
1 2
1 1
2 1
1 1
2 2
1 2
2 2
1 2
1 1
1 1
1 1
1 1
1 2
2 1
1 2
2 2
1 1
2 2
2 2
1 2
2 1
2 1
1 2
2 1
1 1
2 2
1 1
1 2
1 1
2 1
1 2
1 1
1 1
1 2
2 1
1 1
1 1
1 1
1 2
2 1
2 2
2 1
1 1
2 1
1 1
1 1
1 1
2 1
2 1
2 2
1 2
1 2
1 1
1 1
2 1
1 1
1 2
2 2
1 2
2 1
1 2
2 2
2 1
2 1
2 1
2 2
1 1
1 2
1 2
1 1
1 1
1 2
1 1
1 1
2 1
2 2
1 1
1 1
1 1
2 2
2 1
2 2
2 2
2 2
2 2
2 2
2 2
2 1
2 1
1 2
1 1
1 1
2 1
1 2
1 1
2 2
1 2
1 2
2 1
1 2
1 2
2 1
2 2
1 1
1 2
1 2
2 2
1 2
2 1
1 2
2 2
1 1
2 1
2 2
1 1
1 1
2 1
1 1
2 1
2 1
2 2
2 2
2 1
1 1
2 2
1 2
1 2
1 1
2 2
1 1
2 1
1 2
1 2
1 2
2 1
2 1
1 2
1 2
1 1
1 2
1 2
1 1
2 2
2 1
2 1
1 2
2 2
2 2
2 1
1 2
2 2
2 2
1 2
1 2
2 2
2 2
1 1
2 2
1 2
1 1
1 2
2 1
1 1
1 1
2 2
1 1
1 1
1 2
2 2
2 2
1 2
2 2
1 1
1 2
1 2
2 2
1 2
1 1
2 1
2 2
2 2
1 2
1 1
2 2
1 2
2 2
1 1
2 2
2 1
2 2
1 1
1 2
2 2
2 1
1 1
2 2
2 2
2 1
2 1
1 2
2 1
1 1
1 1
2 2
2 1
1 2
2 1
2 2
2 1
2 1
2 2
1 1
1 1
2 2
1 1
2 1
2 2
1 1
1 2
1 2
2 2
2 1
2 2
2 2
1 2
2 2
2 2
1 1
2 1
2 2
1 2
2 2
1 1
2 1
1 1
2 1
1 2
1 1
1 2
1 1
2 2
1 2
2 2
2 2
2 2
1 2
1 2
2 2
1 1
2 2
2 2
2 2
2 1
2 2
2 1
1 1
2 2
2 2
1 1
1 2
2 1
2 1
1 2
1 2
2 2
2 1
2 1
2 1
1 1
2 2
2 2
2 2
2 2
1 2
1 2
2 1
1 1
2 2
1 2
2 2
2 1
2 2
1 1
1 1
1 1
2 1
2 2
1 1
2 1
1 1
1 1
2 2
1 2
1 2
2 2
1 2
1 2
2 1
1 2
2 1
1 2
1 1
1 2
1 1
1 2
2 1
1 1
2 1
1 1
1 1
1 1
2 2
2 1
2 1
1 1
2 2
2 1
2 2
2 2
1 1
1 2
2 1
2 2
2 1
2 2
1 2
1 1
1 1
1 1
1 1
2 1
1 1
1 1
2 1
2 2
2 1
1 2
1 1
1 1
2 1
2 1
2 2
1 1
2 1
2 2
1 2
1 2
1 2
1 1
1 1
2 2
1 2
2 2
1 1
2 2
2 1
1 2
2 2
2 1
1 2
1 2
2 2
1 1
1 1
2 1
2 2
1 2
2 2
1 1
1 1
2 1
1 2
1 1
2 1
1 2
1 1
2 1
2 1
1 2
1 1
1 1
2 1
2 1
2 1
2 2
1 1
2 2
2 2
1 2
2 2
2 1
1 2
1 2
1 1
1 1
2 1
2 1
2 1
2 2
2 1
1 1
1 1
1 2
2 1
2 2
2 2
1 1
2 2
1 2
1 1
2 1
2 2
1 2
1 1
1 2
1 1
2 2
2 1
2 1
1 1
1 2
1 1
1 1
1 1
2 1
1 2
2 1
2 2
2 2
2 2
1 1
2 2
2 2
1 2
2 1
1 2
1 1
1 1
2 2
1 1
1 1
1 1
1 1
1 2
1 1
1 2
1 1
1 2
1 1
1 1
1 2
2 1
1 1
2 2
1 2
1 1
1 2
1 2
2 1
1 2
2 2
2 1
1 1
1 2
1 1
1 2
1 2
2 2
1 2
2 1
2 2
1 2
2 1
2 2
1 2
2 1
2 2
2 1
2 1
2 2
2 1
1 1
1 2
2 1
1 1
2 1
2 2
2 2
1 1
2 2
2 1
2 1
2 2
2 1
1 1
1 2
2 2
2 1
2 1
1 1
2 2
2 1
2 1
1 2
1 1
1 2
1 2
2 1
1 2
1 1
2 2
1 2
1 1
2 1
2 2
2 2
1 2
2 2
2 2
2 2
2 2
2 2
1 1
2 1
2 1
2 2
1 2
1 2
2 2
1 1
1 2
2 1
2 1
2 2
1 1
1 2
2 2
2 1
2 2
1 1
1 1
2 2
2 2
1 1
1 2
1 1
2 1
1 2
1 1
1 2
1 2
1 1
1 1
1 1
1 2
2 1
2 2
2 2
2 2
1 2
2 2
2 1
2 2
1 2
2 1
1 2
2 2
1 1
2 1
2 2
2 2
2 1
1 2
2 1
2 2
1 1
2 2
2 1
2 2
1 2
2 1
1 1
1 2
2 1
1 1
2 1
1 1
2 2
1 2
2 1
1 2
2 2
1 2
2 1
2 1
2 2
2 1
2 2
2 2
2 2
2 1
2 2
1 1
2 2
1 1
1 1
1 2
1 1
2 2
2 2
1 1
1 2
1 1
1 2
1 2
2 1
2 2
1 2
2 1
2 2
1 2
1 2
2 2
2 2
1 1
2 2
2 2
2 2
1 1
2 2
1 1
1 1
1 1
1 2
2 1
1 2
1 2
2 1
2 1
2 2
2 2
2 1
1 2
2 2
2 1
2 2
1 1
1 2
1 2
1 2
2 2
1 1
1 2
2 2
2 1
2 1
2 1
2 2
2 1
1 2
2 2
2 1
2 2
1 1
1 1
2 2
1 2
2 1
2 2
2 2
1 2
1 2
1 1
1 2
1 1
1 2
2 2
2 2
1 1
2 2
1 2
2 1
2 2
2 2
1 2
1 1
2 1
1 2
1 1
1 1
2 2
1 2
1 1
1 2
1 2
1 2
2 2
1 1
2 2
1 1
1 1
1 2
2 2
2 1
2 2
1 1
2 2
2 2
1 2
2 1
1 1
2 2
1 2
2 1
1 2
1 2
2 2
1 2
2 2
2 1
2 2
2 2
2 1
1 1
1 1
2 1
1 2
1 1
1 1
1 1
2 1
2 2
1 1
2 2
2 1
1 2
2 2
2 1
2 2
2 1
2 1
1 2
1 2
2 2
2 2
1 1
1 1
2 2
1 1
1 1
1 2
1 2
1 1
1 1
1 1
2 2
1 2
2 2
2 1
2 1
1 2
2 2
2 1
2 1
2 1
2 1
1 1
2 1
2 1
2 1
2 2
1 1
1 1
1 1
1 1
2 1
2 2
2 2
1 1
1 2
2 2
1 1
2 1
2 2
1 1
2 2
1 1
1 1
2 1
2 1
2 1
1 2
2 2
1 2
2 1
2 1
2 1
1 2
2 1
2 2
1 2
1 1
1 1
2 2
1 1
2 1
2 1
2 2
2 1
2 2
2 2
2 2
1 1
1 2
2 2
2 1
1 1
2 2
1 1
2 2
1 2
1 2
2 2
2 1
1 1
1 2
2 1
1 2
1 1
2 2
1 2
2 2
1 1
1 2
2 1
2 1
1 1
1 2
2 2
1 1
2 2
1 2
2 2
2 1
1 1
2 2
1 1
1 1
1 1
2 1
2 1
2 1
2 2
2 2
1 2
1 2
2 1
2 2
1 2
1 1
1 2
2 1
2 1
2 2
1 1
1 2
2 1
2 1
2 1
1 2
2 1
1 1
2 1
1 1
1 1
1 1
2 2
1 1
1 1
2 1
2 2
1 1
1 2
2 2
1 2
2 1
2 1
1 1
2 2
1 2
1 2
1 1
2 2
1 1
1 1
2 2
2 2
2 1
2 2
1 1
1 1
1 2
2 2
1 2
2 1
1 1
2 1
2 1
1 2
1 1
1 2
2 1
1 1
1 1
2 2
1 2
1 1
2 1
2 1
1 1
2 2
2 1
2 1
2 2
1 2
1 2
1 2
1 1
2 1
2 2
1 2
2 1
1 2
2 2
1 2
2 1
2 1
2 2
1 1
2 1
2 2
1 2
1 1
1 2
2 1
2 2
1 1
1 1
1 2
2 2
2 2
1 1
2 1
1 1
2 2
2 2
1 1
1 1
2 1
2 1
1 1
2 1
1 1
2 2
2 2
2 1
2 2
2 2
1 1
2 2
1 1
1 1
1 2
2 1
1 1
1 1
2 2
1 1
2 1
1 2
2 1
1 2
2 1
2 1
1 2
2 1
2 2
1 1
2 1
1 1
1 1
2 1
2 1
1 1
2 1
2 2
2 1
1 2
2 1
2 1
1 2
1 2
2 2
1 2
2 1
1 2
1 1
1 2
2 1
1 1
1 1
2 2
1 2
1 2
1 2
2 1
2 2
1 2
2 1
1 1
2 2
2 1
2 2
1 1
1 1
1 2
1 1
2 2
1 1
1 1
1 2
1 2
1 2
1 1
2 1
1 1
2 1
2 2
2 2
1 1
1 2
1 2
2 2
2 2
1 1
2 2
1 1
2 1
1 2
1 1
2 2
2 2
1 2
1 1
1 1
2 1
1 1
1 1
2 1
2 2
1 1
2 1
2 2
2 1
2 1
1 1
2 2
2 2
1 2
1 2
2 1
2 1
1 1
2 1
2 2
2 1
2 1
2 1
2 2
2 2
2 1
2 1
2 1
2 2
2 1
1 1
2 1
1 1
2 2
1 1
2 1
1 1
2 2
2 1
2 2
1 1
2 2
2 1
2 2
2 1
1 1
1 1
1 2
2 2
1 2
2 2
1 1
2 1
2 2
1 1
1 2
2 1
2 1
1 2
2 2
1 2
2 1
2 2
2 2
2 2
1 2
2 2
1 1
2 1
1 1
2 2
1 1
1 1
2 2
2 2
1 1
1 1
1 1
2 1
1 2
1 2
1 2
1 2
2 2
2 2
2 2
1 1
2 1
2 2
2 1
1 1
2 2
2 2
1 1
2 1
1 2
1 2
2 2
2 2
1 1
1 2
2 2
1 2
1 2
2 2
2 2
1 2
1 1
2 1
1 1
2 2
1 2
2 2
1 2
1 1
2 1
1 2
1 2
1 2
2 1
2 1
2 2
1 1
2 1
2 1
1 1
1 2
1 1
2 1
2 1
2 2
2 1
2 2
2 2
2 1
1 2
2 2
2 1
2 2
1 1
2 2
2 2
1 2
2 1
1 1
2 2
2 2
1 2
1 2
2 1
1 2
1 1
1 1
2 1
2 1
1 2
2 1
1 2
1 2
1 1
2 1
2 2
1 2
1 1
1 1
2 1
1 2
1 1
1 1
2 2
1 2
2 2
2 2
1 1
2 1
1 2
1 2
2 2
2 2
1 2
2 2
2 2
2 2
2 2
1 1
1 2
1 1
2 2
1 1
2 2
1 2
1 1
1 2
1 1
1 1
1 1
2 2
2 2
1 2
2 2
2 1
1 1
1 1
2 1
2 1
2 2
1 2
2 2
2 1
1 2
1 1
2 2
2 2
2 1
1 2
2 2
2 2
1 1
2 1
1 2
2 1
1 1
2 2
1 2
1 1
2 1
1 1
1 1
2 2
2 2
2 1
2 2
1 2
2 2
2 2
2 2
1 1
2 1
1 2
1 1
1 2
1 2
1 2
2 1
2 1
2 2
2 2
1 1
1 1
1 2
1 1
1 1
1 1
1 2
1 2
2 1
1 2
2 2
1 1
2 1
1 2
1 2
2 1
2 1
1 2
2 1
2 2
2 1
2 2
1 2
1 2
2 1
2 2
1 1
1 2
1 1
2 1
2 2
2 1
2 1
2 2
1 2
1 2
2 2
1 1
2 1
1 1
2 2
2 1
2 1
1 1
1 1
2 1
2 2
2 1
2 2
2 2
2 2
1 2
2 2
1 2
2 1
1 1
1 1
2 1
2 1
2 1
2 2
2 1
2 2
1 2
2 1
1 1
1 1
2 1
1 2
1 1
2 1
2 2
1 2
1 1
1 2
1 2
2 2
2 2
2 2
1 1
1 1
2 2
2 2
1 1
1 1
2 2
1 2
1 1
2 1
1 1
1 1
2 2
1 2
1 2
1 2
2 1
1 1
2 2
2 2
2 2
2 1
2 1
1 1
1 1
1 2
2 2
1 1
1 1
1 1
1 2
1 2
1 2
1 1
1 2
1 2
1 1
1 2
2 2
1 1
2 1
1 2
1 1
1 2
2 2
2 1
2 2
1 2
1 2
2 2
1 1
2 2
1 1
2 2
2 2
2 1
1 1
2 2
2 2
2 1
2 2
1 1
2 2
2 1
1 1
2 1
2 2
1 1
1 2
1 2
2 2
1 1
1 1
1 2
1 2
1 1
2 2
2 1
1 2
1 1
2 2
1 1
2 2
1 1
1 2
1 1
2 2
1 2
2 1
2 1
2 2
1 2
2 2
1 1
2 1
2 2
1 2
1 1
1 1
1 2
1 2
1 1
1 1
2 1
1 2
2 1
1 2
2 1
1 2
1 1
1 1
1 2
1 1
1 2
1 1
2 1
1 1
2 2
2 2
1 2
2 1
2 1
2 1
1 1
2 2
1 1
1 2
2 1
1 1
1 1
2 2
2 1
1 2
2 2
2 2
2 2
2 1
2 2
1 1
1 1
2 2
2 1
2 1
2 2
2 2
2 2
1 2
2 2
1 2
1 2
1 2
1 2
2 1
1 2
2 1
1 2
2 2
1 2
1 1
2 1
2 1
1 2
2 2
1 1
1 2
2 1
2 2
1 1
1 1
1 2
1 1
1 1
2 1
2 2
2 2
1 2
2 2
2 1
2 2
2 1
2 1
1 1
2 1
1 1
1 2
1 2
1 2
2 1
2 2
2 1
1 2
2 1
1 1
2 2
1 2
1 1
2 1
1 2
2 1
1 2
2 2
2 1
2 1
1 1
2 2
1 1
1 1
2 2
1 1
1 2
1 2
2 1
2 2
2 1
1 2
1 1
2 2
2 1
2 2
1 1
1 2
2 1
2 2
2 2
2 1
2 1
1 2
2 2
2 1
1 2
1 2
1 2
1 2
1 2
2 2
1 2
2 2
1 2
2 1
2 2
1 1
2 2
1 1
1 1
2 2
2 2
1 2
2 2
1 2
2 1
2 2
1 1
1 2
2 1
2 2
2 2
2 1
2 2
2 2
1 2
1 2
2 2
1 2
2 1
2 1
1 1
2 1
2 2
2 2
2 2
2 1
1 1
2 1
1 2
1 2
1 2
1 2
1 1
1 2
2 1
2 1
1 1
2 2
1 1
2 1
1 2
2 1
2 1
2 1
1 1
1 1
2 1
2 2
2 2
2 1
1 2
1 1
2 1
1 1
2 2
2 1
2 1
2 2
2 1
2 1
2 1
2 1
1 2
1 2
2 2
2 1
1 2
1 2
1 1
2 1
1 2
2 2
2 2
2 1
2 2
1 1
2 2
2 2
1 2
2 1
1 1
1 2
1 2
2 2
2 2
2 2
1 1
2 1
1 2
1 2
2 2
2 2
2 2
2 1
2 1
1 1
1 1
1 2
1 2
1 2
2 2
2 1
1 1
1 2
1 1
1 1
1 1
2 2
2 1
2 1
2 2
1 2
1 2
1 2
2 1
1 2
2 2
2 2
2 2
2 2
1 1
1 2
2 2
1 1
2 1
1 1
2 2
1 2
1 2
1 1
2 1
1 2
2 1
2 1
2 2
1 1
2 1
2 2
1 1
2 2
2 1
2 2
1 2
2 1
2 2
1 1
1 1
1 2
2 2
2 2
1 1
1 1
2 2
1 1
2 1
1 1
1 2
1 1
1 2
1 1
1 1
1 2
1 1
1 1
2 1
1 2
2 2
2 2
2 2
1 1
1 2
1 1
2 2
1 1
1 2
2 1
2 1
2 1
2 1
1 2
1 2
1 2
2 1
1 2
2 2
1 1
2 1
1 2
2 1
2 2
2 1
2 2
1 1
1 2
1 1
2 2
2 2
2 1
1 1
1 2
1 1
1 2
1 1
1 1
1 2
2 2
2 2
2 2
1 2
2 1
2 2
1 1
1 2
1 1
1 2
1 2
2 1
1 1
1 1
2 1
1 2
2 2
1 2
1 2
2 1
2 1
1 2
2 2
2 1
2 1
2 2
1 2
2 1
1 2
1 1
2 2
1 2
2 2
2 2
1 1
1 1
2 1
2 2
1 1
2 2
1 2
1 2
2 1
1 2
1 1
2 2
1 2
1 1
1 2
1 2
1 2
2 2
1 2
1 2
1 2
2 1
2 1
1 1
1 2
2 1
2 1
2 1
1 2
2 2
2 2
2 1
1 2
2 1
2 1
1 2
1 2
2 2
2 2
1 2
2 1
1 2
2 2
1 2
1 1
2 1
1 1
1 2
1 2
2 1
2 1
1 1
1 1
2 1
2 2
1 1
2 2
2 1
1 2
1 2
1 1
2 2
1 2
1 1
1 1
1 2
1 1
2 1
2 2
2 2
1 2
1 2
1 1
1 1
2 1
1 1
1 1
1 2
1 1
1 1
1 2
1 2
2 2
1 2
1 2
1 2
2 1
2 2
2 1
2 1
1 2
1 1
2 2
2 1
2 1
1 2
2 1
1 2
2 1
1 1
1 1
1 2
1 2
1 1
2 1
1 1
1 1
2 2
1 2
2 1
1 1
2 1
2 2
1 2
2 2
1 2
1 2
2 1
1 1
2 1
2 2
1 1
2 1
2 1
2 1
1 1
2 2
1 1
1 1
1 1
1 1
2 1
1 2
2 2
2 1
2 1
1 1
1 2
2 2
2 2
2 1
2 2
1 1
1 1
2 2
2 1
1 2
2 1
1 2
2 2
1 2
1 2
2 1
2 2
1 1
2 1
1 1
2 2
2 2
2 2
1 1
2 2
2 1
2 1
2 1
2 2
1 2
2 2
1 1
2 2
1 1
1 2
1 1
1 1
2 1
2 1
2 2
1 1
1 1
2 1
2 1
2 2
1 1
1 2
1 1
2 1
2 1
2 1
1 2
1 2
2 2
1 1
2 2
2 1
2 2
2 2
2 1
2 1
2 2
1 2
2 1
2 1
1 1
1 2
2 2
1 2
1 1
2 1
2 2
1 1
2 1
2 1
2 1
1 2
1 2
1 2
1 1
1 2
2 1
1 2
2 1
1 2
2 2
2 1
2 1
2 1
1 2
2 2
2 2
1 1
1 1
2 1
1 1
1 2
1 2
2 2
2 1
2 2
1 1
2 2
1 2
2 1
2 2
2 1
1 2
2 1
2 1
1 1
1 1
2 1
2 2
1 2
1 2
2 1
1 1
2 2
1 2
1 1
1 1
1 1
1 2
1 1
1 2
2 1
2 2
2 2
2 2
1 2
1 1
1 1
1 2
1 2
2 2
1 1
2 2
2 1
1 1
1 1
1 1
2 1
2 1
2 1
2 2
1 1
2 1
1 2
1 2
2 2
1 1
1 2
2 1
2 1
2 1
1 1
2 2
1 1
1 2
2 2
1 1
2 1
2 1
2 2
1 1
2 1
1 2
1 1
1 2
1 2
1 1
1 2
1 2
1 1
2 2
1 1
2 1
2 2
2 1
2 2
1 2
2 2
2 2
2 1
1 1
1 2
1 1
2 2
1 2
2 1
2 2
2 1
2 1
2 2
1 2
2 1
1 2
2 1
2 1
1 1
2 2
1 2
1 2
2 2
2 1
2 2
1 1
1 1
1 2
2 2
2 2
2 2
2 2
1 1
1 1
2 1
1 1
1 2
2 2
2 1
2 2
1 2
2 1
1 2
2 2
2 2
1 2
2 2
2 2
1 2
1 1
2 2
1 1
1 2
1 1
2 2
1 2
1 2
2 2
2 1
1 1
2 1
2 1
2 2
2 1
2 1
1 1
1 1
1 2
1 2
2 1
1 2
1 2
1 2
2 1
2 2
2 2
1 1
2 1
2 2
2 1
2 2
2 1
2 2
1 1
2 2
2 2
2 1
1 2
2 2
2 1
2 1
2 1
1 1
1 2
2 2
2 2
2 2
1 2
1 2
1 1
2 1
2 1
2 1
1 2
1 2
2 2
1 1
1 2
1 1
1 1
1 2
1 2
1 2
1 2
1 1
1 2
2 2
1 2
1 2
1 1
2 1
1 2
2 2
1 1
1 1
1 1
1 2
1 2
1 2
2 2
1 1
1 1
1 1
2 2
1 2
1 2
1 2
2 1
2 1
2 2
2 1
2 2
1 1
2 1
1 2
2 1
1 2
2 1
1 1
1 2
2 2
2 1
1 1
1 2
2 1
2 1
1 2
2 2
1 2
2 1
1 2
2 2
2 1
2 2
2 1
1 1
2 1
2 2
1 1
2 2
2 2
1 1
2 1
2 1
1 2
2 2
2 1
2 1
2 2
2 1
1 2
2 2
1 1
1 1
2 2
1 2
1 2
1 1
1 1
2 1
2 1
2 2
2 2
2 1
2 1
2 2
1 1
2 1
2 1
2 1
2 1
2 1
2 2
1 1
2 2
1 2
1 2
1 1
2 2
2 2
2 1
1 2
1 1
2 1
1 2
1 1
2 2
1 2
1 1
1 1
2 1
2 1
2 1
1 2
1 2
1 1
2 1
2 1
2 1
1 1
1 2
2 1
2 2
2 2
1 2
2 1
1 1
2 1
2 1
1 2
2 1
1 2
1 1
1 1
1 2
2 2
1 1
2 1
2 2
2 1
1 1
2 1
2 1
2 2
2 1
1 2
2 2
1 1
2 2
2 1
2 2
2 2
2 1
2 2
1 1
1 1
2 1
2 1
2 2
1 1
2 1
1 1
2 1
2 2
2 1
1 1
1 2
1 2
1 2
1 2
1 1
1 2
2 2
1 1
1 2
2 2
1 2
2 2
2 2
1 1
1 2
1 2
1 1
2 1
1 2
2 2
1 1
2 1
1 1
1 2
1 1
2 2
1 2
2 2
1 1
2 1
1 1
1 2
2 2
2 2
1 2
2 1
1 1
2 1
2 2
1 1
2 1
2 2
2 2
1 1
1 2
2 2
2 1
1 2
1 1
2 2
2 2
1 1
2 1
2 2
2 1
1 1
2 2
2 2
1 2
1 1
2 1
1 2
1 2
2 1
2 2
1 1
2 1
2 2
2 2
1 2
2 2
1 2
1 1
2 2
1 2
2 2
1 2
2 1
2 1
1 2
2 1
2 1
2 1
2 2
1 1
2 2
1 2
2 1
1 2
2 2
2 1
1 1
2 2
2 1
2 1
1 1
1 2
2 1
1 1
2 2
2 1
1 2
2 2
1 2
2 1
1 2
1 1
1 1
1 1
1 2
2 1
2 2
2 2
2 2
2 2
2 2
1 1
2 2
1 1
1 1
1 1
2 1
2 1
1 2
1 2
1 2
1 2
2 2
1 1
2 2
1 1
1 1
2 1
1 1
1 1
2 1
2 1
2 2
2 2
1 1
1 2
2 1
2 1
1 1
1 2
1 2
1 1
2 2
1 1
2 1
2 2
1 2
1 2
1 1
2 1
2 2
1 1
1 2
1 1
1 1
1 1
2 2
1 1
1 1
1 2
1 2
2 1
1 1
1 2
1 1
2 1
1 2
2 2
1 2
2 2
2 1
1 1
1 2
2 2
1 2
2 2
1 2
2 1
1 2
1 1
1 2
1 1
1 1
2 1
2 2
2 1
2 2
1 2
2 1
2 2
2 1
1 2
1 2
2 2
2 1
1 1
2 2
1 1
1 1
1 2
2 1
2 2
2 1
1 2
1 2
2 1
2 2
1 1
2 2
1 2
1 2
1 1
1 2
2 1
2 1
2 2
1 2
1 2
2 2
2 1
1 1
2 1
1 1
1 2
1 2
1 2
1 1
1 1
1 2
2 1
1 1
2 1
2 2
1 2
1 1
2 1
2 1
1 2
1 2
2 2
1 2
2 1
2 2
1 1
2 2
2 2
1 2
1 2
1 1
1 1
2 1
1 2
2 2
1 1
1 1
1 1
1 1
2 1
1 2
1 2
1 1
1 1
1 1
2 2
2 2
2 2
2 1
1 1
1 2
2 1
2 1
2 1
2 2
2 2
1 1
2 2
1 1
2 1
1 2
2 2
2 2
1 2
2 1
2 2
1 1
2 1
1 2
2 2
1 1
1 1
2 2
2 1
1 1
2 2
1 2
1 1
1 1
2 2
1 1
2 2
1 1
2 2
2 1
2 2
2 2
2 1
1 2
2 1
1 2
2 1
1 2
2 1
2 1
1 2
2 2
1 2
1 1
2 2
1 1
1 2
2 2
2 2
2 2
1 2
1 2
2 1
1 1
2 2
2 1
1 1
1 2
2 1
1 1
2 1
2 1
1 2
2 1
2 2
2 2
1 2
2 2
1 1
1 2
2 1
2 1
2 2
2 2
2 2
2 2
2 2
2 2
1 2
1 2
2 2
1 2
1 2
2 1
1 2
1 2
1 1
2 2
1 1
1 2
1 1
1 1
1 2
1 1
2 2
1 1
1 1
1 2
2 2
2 2
1 1
1 1
1 2
1 2
1 2
2 1
2 2
1 2
1 1
2 2
1 1
1 1
2 2
1 1
2 1
2 2
2 2
2 1
1 1
1 1
2 1
2 2
2 2
2 1
1 1
1 2
2 2
1 1
1 2
1 1
2 2
1 2
1 1
1 2
1 1
2 2
2 2
1 1
2 2
2 1
2 2
1 1
1 1
1 2
1 1
2 1
2 1
2 1
2 1
2 2
2 2
2 2
1 1
2 2
1 2
1 2
1 2
1 1
2 1
1 1
2 1
2 1
2 1
2 2
1 2
1 1
1 2
2 2
2 1
1 2
2 1
1 2
1 2
1 1
1 1
2 2
2 1
1 1
1 2
1 1
2 2
1 2
1 1
2 2
2 1
1 2
1 2
2 1
1 1
2 1
2 1
1 2
1 1
2 2
2 2
2 1
2 1
2 1
1 2
2 1
1 1
2 1
2 1
1 2
2 1
1 2
1 2
2 1
1 1
1 2
2 1
1 1
2 1
1 1
2 2
2 1
2 2
1 1
1 2
2 2
2 1
2 2
1 2
2 2
2 2
2 1
1 1
1 2
1 2
2 2
1 2
1 2
1 2
2 2
2 1
2 1
2 2
1 1
1 2
2 1
2 1
2 1
1 2
1 1
1 1
1 1
2 1
2 2
2 1
2 2
2 1
1 1
2 1
1 2
1 1
1 1
2 1
1 1
1 2
2 2
1 1
1 1
1 1
2 1
2 2
1 1
2 2
1 1
2 2
1 1
2 1
2 2
1 2
1 1
1 1
2 1
1 2
1 1
1 1
2 1
1 2
2 2
2 2
2 2
1 1
1 2
2 2
1 1
2 1
2 1
1 1
1 1
2 1
1 1
2 1
1 2
2 1
1 1
1 1
2 1
1 1
2 1
2 2
2 1
2 2
1 1
2 1
2 1
2 2
2 1
1 2
1 2
2 2
1 2
2 1
1 1
2 1
2 2
1 1
1 1
1 2
1 1
1 2
1 2
2 1
2 2
1 2
2 2
2 2
1 1
1 1
1 2
1 1
2 1
2 1
1 2
2 2
1 2
1 2
1 2
2 2
1 1
2 2
1 2
1 1
2 1
1 1
2 2
2 2
1 2
2 2
2 1
1 1
2 1
1 1
2 2
1 2
2 1
2 2
2 1
2 1
1 2
1 2
2 1
2 1
1 1
2 1
2 2
2 1
2 1
2 1
2 2
1 1
1 2
2 1
2 1
1 1
1 1
1 2
1 2
2 1
1 1
2 2
1 1
2 1
2 1
2 2
1 2
2 2
1 1
2 2
2 1
1 1
2 2
2 2
1 2
2 2
2 1
1 1
2 1
2 2
2 2
2 1
1 2
2 1
2 2
1 1
2 1
2 2
2 2
1 2
1 2
1 2
2 2
2 1
1 1
2 2
2 2
2 2
1 1
1 1
2 1
2 1
2 1
1 1
1 1
2 2
1 1
2 2
2 1
2 2
1 1
1 2
1 2
1 1
1 2
1 1
1 1
2 2
2 2
2 1
2 2
2 1
1 2
1 2
2 1
1 2
1 2
1 1
2 2
2 1
2 1
1 1
1 2
2 1
1 1
1 2
1 1
1 2
2 1
2 2
2 2
2 2
2 1
2 2
1 2
2 1
1 1
2 1
2 1
2 1
2 2
1 1
2 1
1 2
2 1
1 1
2 1
2 2
2 1
1 1
2 1
1 2
1 2
2 2
1 2
1 2
2 1
2 1
1 2
1 1
1 2
1 2
1 1
1 2
2 1
1 2
2 1
1 2
1 1
2 2
2 2
2 1
1 1
2 1
1 1
1 2
2 1
1 1
2 1
2 2
2 1
2 2
2 2
1 1
2 2
1 2
1 2
2 1
2 1
2 1
2 2
2 1
2 2
2 2
2 2
2 2
2 2
2 1
1 1
2 2
2 1
2 1
2 1
1 2
2 2
1 1
1 2
1 1
2 1
1 1
1 2
2 2
1 2
1 1
2 1
1 1
1 2
2 1
1 2
2 1
1 2
2 1
1 2
2 1
1 2
2 1
1 2
1 1
2 1
1 1
2 1
2 1
2 1
1 1
1 1
2 2
1 2
2 2
2 2
2 1
2 2
2 1
1 2
1 1
2 2
1 2
1 2
2 1
1 1
2 2
1 2
2 1
1 2
1 1
1 1
2 1
2 2
2 2
1 2
1 2
1 1
2 1
2 1
2 1
2 2
2 1
2 2
1 1
2 2
2 1
2 2
1 1
2 1
2 1
2 2
2 1
2 1
2 2
1 1
2 2
1 1
1 2
1 2
1 2
2 1
2 1
1 1
2 2
1 2
1 1
1 2
2 2
1 1
2 1
1 1
1 1
2 2
2 2
1 1
2 1
2 1
1 2
2 1
2 1
2 2
2 2
1 2
2 2
1 2
2 1
1 2
2 2
2 2
1 1
2 2
2 1
2 2
1 1
1 1
1 2
2 1
2 2
2 2
1 1
2 1
1 1
2 2
2 2
1 2
2 2
1 2
1 2
1 1
2 2
1 2
1 2
1 1
2 1
1 1
2 1
1 1
2 1
2 1
2 1
2 1
2 2
2 2
1 1
2 1
2 2
1 1
2 1
2 2
2 1
2 2
2 2
2 1
2 2
1 2
1 1
1 1
2 2
1 1
2 2
1 2
2 1
1 1
2 1
1 1
2 1
1 2
2 2
2 2
1 2
1 1
2 2
1 1
2 1
1 2
1 2
1 2
2 2
1 1
1 2
2 1
2 2
1 2
1 1
1 1
1 2
2 2
1 1
1 1
2 1
1 1
1 2
1 2
2 2
1 2
1 2
2 2
2 2
1 2
1 2
1 2
1 2
2 2
2 2
2 1
1 2
2 2
2 1
1 1
2 2
1 1
1 2
1 1
2 2
2 1
2 1
2 1
1 1
1 1
2 2
2 2
2 2
2 1
1 2
1 2
1 1
2 1
1 1
1 2
2 1
1 2
1 1
1 2
2 2
2 2
2 2
1 2
1 1
2 2
1 1
2 2
1 1
2 1
2 2
2 1
1 2
1 2
1 2
2 2
2 1
1 2
1 1
2 2
2 2
1 2
1 1
2 2
1 1
2 1
2 1
2 2
1 2
1 2
1 1
1 1
2 1
2 1
2 2
1 2
2 2
1 1
1 2
1 1
1 1
1 2
1 1
2 1
2 2
2 1
2 1
1 2
1 1
1 2
1 2
2 1
2 2
1 1
2 2
2 1
2 2
1 1
1 2
1 2
2 1
1 2
1 1
2 1
1 1
1 1
2 1
1 2
1 1
1 2
1 1
1 1
2 2
2 2
2 2
2 2
2 1
1 1
2 2
2 1
1 2
1 2
2 1
1 2
1 2
2 1
1 1
1 2
2 1
2 2
1 1
1 2
2 2
1 1
1 2
2 1
2 1
1 1
2 1
2 1
1 1
2 1
1 2
2 1
2 1
1 2
2 2
2 1
1 2
1 1
1 1
2 2
2 1
2 1
2 1
2 1
1 2
1 1
1 1
1 2
1 2
1 2
2 1
1 1
2 2
1 2
1 2
1 2
2 2
2 2
2 2
2 1
1 2
1 2
1 2
2 2
1 2
2 1
2 2
1 1
2 1
1 2
2 1
1 1
2 2
1 2
2 1
2 2
2 1
2 2
1 2
2 2
2 1
1 1
2 2
1 2
1 2
2 2
2 2
2 1
1 1
2 1
1 1
1 2
2 1
1 2
2 2
1 2
1 1
2 1
2 2
1 1
1 1
1 2
1 2
1 2
1 2
1 2
1 2
2 1
2 1
2 1
2 1
2 1
1 2
2 1
2 2
1 2
1 1
1 2
2 2
1 2
1 2
1 1
1 2
2 2
1 2
2 2
1 2
2 1
2 1
2 1
2 1
1 1
1 1
1 1
2 1
1 2
1 2
1 2
1 1
1 1
1 1
1 2
2 2
2 2
1 1
1 1
1 2
2 1
2 2
2 1
1 2
1 2
1 2
1 1
1 2
1 1
1 2
1 2
1 2
2 2
1 2
1 1
1 1
1 2
1 1
2 2
2 1
2 2
1 2
2 2
1 1
1 2
2 2
2 2
2 1
1 1
2 1
1 2
2 1
1 2
2 2
1 1
1 2
1 1
2 2
2 1
2 1
2 1
2 1
1 2
1 1
1 2
1 1
2 1
2 1
2 2
1 1
2 1
1 1
2 1
1 1
2 2
1 1
2 1
2 2
2 1
2 1
1 1
1 2
2 2
1 2
1 1
2 2
1 2
2 2
1 2
2 2
1 1
2 1
2 2
2 1
2 1
1 2
1 2
2 1
2 2
1 2
1 2
2 2
2 1
1 1
1 2
1 1
2 2
2 1
1 1
2 1
1 1
2 1
1 1
1 2
1 2
1 1
1 1
2 1
1 2
2 2
1 1
2 1
2 2
2 1
1 2
2 2
2 2
2 2
2 1
2 1
1 2
2 2
2 2
1 2
2 2
1 2
1 1
1 1
1 1
1 1
1 2
2 1
2 2
2 2
2 2
1 1
2 2
1 1
1 1
1 1
1 1
2 1
2 1
1 2
2 2
2 2
2 2
1 1
1 2
2 2
1 2
2 2
1 1
1 1
2 2
2 1
1 2
1 2
1 1
2 1
1 2
2 2
1 1
2 1
2 2
2 1
1 2
1 2
1 2
1 1
2 2
2 1
2 2
1 1
2 1
1 1
1 1
1 2
2 2
2 1
1 2
2 2
2 1
1 2
2 2
1 2
1 1
1 2
1 2
1 1
2 2
1 1
2 1
2 2
1 1
1 1
2 1
2 1
1 1
1 1
2 1
2 1
1 2
2 1
2 1
1 1
2 2
1 2
1 2
2 1
1 1
2 1
1 1
1 2
1 2
2 1
2 2
1 1
2 2
2 1
1 1
2 1
2 2
2 1
1 2
1 1
2 2
1 2
1 2
2 2
1 1
2 1
1 1
1 2
2 2
1 2
2 1
2 1
2 1
1 2
2 2
2 1
1 2
2 1
1 2
1 2
1 1
2 1
1 1
2 2
1 2
2 1
1 1
2 2
1 2
1 2
1 1
1 2
2 2
2 2
2 2
1 1
1 2
1 1
1 2
1 2
2 2
2 1
2 2
1 2
1 1
1 1
1 2
2 2
1 2
1 2
1 1
2 2
2 2
1 2
2 1
2 2
2 2
1 1
1 2
1 2
1 2
2 1
1 1
1 2
2 2
1 1
1 2
2 1
2 2
2 2
2 2
1 1
1 2
1 2
2 2
1 2
2 1
1 2
2 2
2 2
2 1
1 2
2 2
2 2
2 1
2 1
1 2
2 1
1 2
2 1
1 1
2 2
1 2
2 2
1 2
1 2
2 1
1 1
1 1
2 1
1 2
1 2
2 2
1 2
1 2
1 2
2 2
1 2
2 2
1 2
1 1
2 2
1 2
2 2
2 2
2 2
2 1
2 1
2 1
1 2
1 1
1 2
2 1
1 2
1 1
2 1
2 1
2 2
1 1
1 2
1 2
1 2
2 1
2 2
1 2
2 1
2 2
2 1
2 1
2 2
2 1
2 2
1 2
1 1
2 2
2 1
2 1
1 1
2 2
2 1
2 1
1 2
2 2
2 1
2 2
2 1
1 2
1 1
2 2
2 1
1 1
2 1
2 1
1 1
2 2
1 2
2 1
2 1
1 1
1 2
1 1
2 2
2 1
2 1
2 2
2 1
2 1
1 2
2 2
1 1
1 2
1 2
1 2
2 1
1 1
2 1
2 1
1 1
2 2
2 1
2 2
2 2
1 2
1 2
2 1
1 1
2 2
1 1
2 1
2 2
2 1
2 2
1 1
2 1
2 1
1 1
2 1
2 1
2 1
1 2
2 1
2 2
2 1
2 1
2 2
1 2
2 1
1 1
2 1
2 2
2 2
2 1
2 2
1 1
1 2
1 2
2 2
2 2
2 2
2 1
1 1
1 1
2 1
2 2
1 1
1 2
1 2
2 1
2 1
2 1
1 1
1 2
1 1
2 1
2 2
1 2
2 2
1 2
1 2
1 1
1 2
1 2
1 1
2 1
1 1
2 2
2 1
1 2
1 1
1 2
1 2
2 1
2 2
2 2
2 1
1 2
2 2
1 2
1 2
1 2
2 1
2 1
2 2
2 1
1 1
1 2
1 1
2 1
1 2
1 2
2 2
1 2
1 1
1 1
1 1
1 2
1 1
1 1
2 1
2 2
2 1
2 2
2 2
2 2
1 1
2 2
1 2
1 1
1 1
1 2
2 1
1 1
2 1
2 1
1 1
1 1
2 1
1 2
2 2
1 2
1 2
2 2
2 2
2 2
2 2
1 2
2 2
1 2
1 2
2 1
2 1
1 1
2 2
1 2
1 2
2 2
2 1
2 2
2 2
1 1
1 1
2 1
2 1
1 2
1 1
1 2
2 1
2 2
1 1
2 2
1 1
2 1
1 2
2 2
1 1
1 2
1 1
1 1
2 1
1 1
2 1
2 1
1 1
1 1
1 1
1 2
1 2
1 2
2 2
2 2
2 1
1 1
2 1
2 2
1 1
2 1
2 2
1 1
1 2
2 2
1 1
2 2
1 2
2 1
1 1
1 1
1 2
1 1
2 2
2 2
2 2
1 1
1 1
2 2
2 1
2 1
2 2
2 2
2 1
2 1
1 2
2 2
2 1
1 1
2 1
2 1
2 1
1 2
1 1
2 2
2 1
1 2
2 1
2 1
2 1
2 1
1 2
1 2
2 1
1 1
2 2
1 2
2 2
2 1
1 1
1 2
2 2
1 2
1 1
1 2
2 2
2 2
1 1
1 2
1 2
2 2
1 2
1 2
2 1
1 1
2 1
1 2
2 1
2 2
1 1
1 1
1 1
1 1
2 1
1 1
1 2
2 1
2 1
2 1
2 1
1 2
2 2
1 2
2 2
1 1
2 2
1 1
2 1
2 1
2 1
1 1
1 2
2 2
2 2
2 2
2 2
1 1
1 1
1 2
2 2
1 2
1 2
2 2
2 1
1 2
1 1
1 2
1 1
1 2
2 1
2 2
1 1
1 1
1 1
1 2
1 2
1 1
2 2
1 1
2 1
2 2
2 2
2 1
1 1
2 2
2 2
2 1
1 2
2 2
2 2
2 1
2 1
1 1
2 1
1 2
1 2
2 1
1 2
1 2
1 1
2 2
2 2
2 1
1 1
2 1
1 2
1 1
2 2
1 2
1 1
2 1
2 1
2 2
2 2
2 2
2 1
2 2
1 1
2 2
1 2
1 2
1 1
1 1
2 2
2 1
1 1
2 2
1 1
1 1
1 2
2 1
2 2
1 2
2 1
2 2
2 2
2 1
1 1
1 1
2 1
1 2
1 2
1 2
1 2
1 2
2 2
1 2
2 1
2 1
2 1
1 2
2 2
1 1
1 2
2 2
2 1
2 1
2 2
2 2
1 1
1 2
1 1
1 2
2 1
2 2
1 2
1 1
2 2
1 1
2 2
2 2
1 1
2 2
1 1
1 1
2 2
2 1
1 1
2 1
2 1
1 2
1 1
1 2
2 1
1 2
1 2
1 2
1 1
1 1
2 2
1 2
1 2
2 2
2 2
1 2
2 1
2 2
1 2
2 1
1 2
2 2
2 1
1 2
1 1
2 2
1 2
1 1
1 2
2 2
1 1
2 1
2 2
2 2
1 2
1 2
1 1
1 1
2 1
1 1
1 1
2 2
2 1
1 1
2 1
2 2
2 1
1 2
1 1
1 2
2 1
2 2
2 1
2 2
2 2
2 1
1 1
1 1
1 1
2 2
2 1
2 2
1 1
1 2
1 1
1 1
1 2
2 1
2 2
2 1
2 1
1 2
2 2
2 1
2 2
2 2
2 1
2 1
2 2
1 1
2 2
2 1
2 2
2 1
1 2
1 2
2 2
1 1
1 1
1 2
2 1
1 2
2 2
1 1
1 1
1 2
1 1
2 2
2 1
2 2
1 2
1 1
2 2
1 1
2 1
2 1
2 2
1 2
2 1
2 1
2 1
2 1
1 1
1 1
2 2
1 2
2 2
2 2
1 2
2 2
1 1
2 2
1 2
1 2
1 1
1 2
2 1
2 2
2 2
2 1
1 1
1 1
1 2
2 1
2 2
1 2
2 2
1 2
1 2
1 1
2 1
1 2
1 2
1 2
1 1
1 1
1 2
2 2
1 2
2 2
2 1
1 1
1 1
1 1
1 2
2 1
2 2
2 2
1 2
1 1
2 2
1 1
2 2
2 2
2 2
2 2
1 1
1 1
2 2
1 1
1 2
1 1
2 1
2 2
1 1
2 1
2 2
2 1
1 1
2 2
2 1
1 2
1 1
2 1
1 2
1 1
2 2
2 2
2 2
1 2
1 1
2 1
2 2
1 1
2 1
1 1
2 1
1 1
1 1
2 2
1 1
2 2
2 1
2 1
2 2
1 1
1 2
2 1
2 1
2 1
2 2
2 1
2 1
2 2
1 2
2 2
2 2
2 1
1 2
2 2
2 2
1 2
2 2
2 2
1 2
1 1
1 1
1 2
2 1
2 2
2 2
1 2
1 1
2 2
2 1
1 1
2 2
1 2
2 1
1 1
1 2
2 1
2 1
2 1
2 2
1 1
2 2
2 1
2 1
1 2
2 1
2 2
2 1
1 2
2 2
1 1
1 2
1 2
1 1
1 1
2 2
2 2
2 2
2 1
1 2
2 1
1 2
1 2
1 2
1 2
1 1
1 1
2 2
1 2
1 2
1 2
1 1
2 1
2 1
1 1
1 2
2 1
2 1
1 1
1 1
2 2
1 2
1 1
1 2
2 1
2 1
2 1
2 2
1 1
2 1
1 1
1 2
2 1
2 1
1 2
1 2
1 2
1 2
2 1
2 1
2 2
2 2
2 1
1 2
1 2
1 1
1 1
2 2
1 2
1 1
2 2
2 2
2 2
2 1
1 1
1 1
2 1
1 2
1 2
2 2
2 2
1 2
1 1
2 2
1 1
1 2
1 2
1 1
2 2
2 2
2 1
2 1
2 2
1 1
1 1
2 2
2 2
2 1
1 1
1 1
2 2
2 2
2 2
2 1
1 2
2 1
1 2
1 2
1 2
2 2
2 2
2 2
1 1
2 2
2 2
2 2
2 2
2 2
2 2
1 2
2 1
1 1
1 2
1 1
1 2
1 2
2 1
1 1
2 2
1 1
1 2
2 1
2 2
1 1
2 1
1 2
2 1
1 1
2 2
2 1
1 1
2 2
2 2
1 2
2 1
1 2
1 1
2 2
1 2
2 2
2 2
1 2
2 1
2 2
2 2
2 1
2 2
2 2
2 1
2 2
1 1
2 1
1 2
2 2
2 2
1 1
2 2
2 2
1 1
1 2
2 1
2 1
1 1
1 2
1 2
2 1
2 1
2 1
1 2
2 1
1 1
2 2
2 2
2 2
2 1
1 1
1 2
2 2
2 2
1 2
1 1
2 1
2 1
1 2
2 2
2 1
1 1
1 1
2 2
2 2
1 2
1 2
2 2
2 1
2 1
1 1
2 2
2 2
1 1
1 1
2 1
1 2
1 2
2 1
2 2
1 2
2 1
2 1
1 2
2 1
2 2
2 1
1 1
1 2
2 2
1 2
2 1
1 1
1 1
2 2
2 1
1 1
2 1
1 1
2 2
1 1
1 1
1 2
1 2
2 2
1 2
2 2
1 2
2 1
1 2
1 1
1 1
1 2
1 1
1 2
2 2
1 1
1 2
1 2
2 1
2 2
2 1
2 1
2 1
2 1
2 1
1 1
1 1
2 1
1 2
1 1
1 2
1 2
2 2
2 2
2 1
1 1
2 2
1 2
1 2
1 1
1 1
2 1
1 1
1 1
1 1
1 1
1 2
1 1
2 1
2 1
1 2
2 1
1 1
2 2
1 2
2 2
1 1
2 1
2 2
1 1
2 2
1 1
2 2
2 1
2 1
1 2
1 2
1 2
1 1
1 1
2 1
1 2
2 1
2 2
1 1
2 1
2 2
2 2
2 1
2 2
1 1
1 2
1 1
1 2
2 1
2 1
1 1
1 1
1 2
2 2
1 2
1 2
2 1
2 1
2 1
2 1
2 1
2 1
2 2
2 2
2 2
1 1
1 1
1 2
1 1
1 1
1 2
1 1
2 2
2 2
1 1
1 2
2 1
2 1
2 2
2 1
2 2
1 1
1 1
1 2
1 1
2 2
1 2
1 2
1 1
1 1
2 2
1 1
2 2
2 1
2 2
1 1
2 1
1 2
1 1
2 1
2 2
2 1
1 1
1 2
2 1
2 2
2 2
1 2
2 1
1 2
1 2
2 1
2 2
1 1
1 2
2 1
2 1
2 2
2 1
2 2
2 1
2 2
1 2
2 2
1 1
2 2
1 2
1 1
2 2
1 1
1 1
2 1
1 1
2 1
1 2
2 1
1 2
1 1
2 2
2 1
2 1
1 1
2 2
1 1
2 2
2 1
1 1
2 2
1 1
2 2
1 1
1 1
2 1
1 1
1 2
1 1
1 2
2 2
2 1
1 2
2 1
1 1
1 2
1 2
2 1
1 1
2 1
2 1
1 2
2 2
2 1
2 1
1 2
2 2
2 1
2 2
2 1
1 2
1 1
1 1
1 1
2 1
2 1
1 1
2 2
2 1
1 1
1 1
1 1
2 1
2 1
1 1
1 1
2 2
2 2
1 1
1 1
2 2
2 1
2 2
1 1
2 2
2 2
1 1
1 2
1 2
2 2
1 2
2 1
1 2
2 2
1 2
1 1
2 2
1 1
1 1
1 1
1 1
1 1
1 2
1 2
2 1
1 2
1 2
1 1
1 1
1 1
2 1
2 1
1 2
1 1
1 1
2 1
1 1
2 2
2 1
1 1
1 2
1 2
2 2
1 1
2 1
1 2
1 2
2 2
1 2
2 1
2 1
1 2
1 1
1 1
1 2
1 1
1 2
1 1
1 2
2 1
1 2
2 2
2 2
1 1
2 1
2 2
2 1
1 2
1 1
2 1
2 1
2 2
1 2
1 2
2 1
1 2
1 2
1 2
2 2
2 1
1 2
2 1
1 1
1 1
2 2
1 2
1 1
1 2
2 1
1 1
1 1
2 1
2 1
2 1
1 1
1 1
2 1
2 2
1 1
2 1
2 2
1 1
2 2
1 2
1 2
2 2
1 1
2 1
2 1
2 1
1 2
1 1
2 1
1 2
1 2
1 2
1 1
2 1
1 1
1 1
2 2
2 1
1 1
1 1
2 2
2 2
1 1
2 1
1 1
1 2
2 2
1 1
2 2
1 1
2 1
2 2
2 1
2 2
1 1
2 1
2 1
1 2
1 2
2 1
1 1
2 1
2 2
1 2
1 1
2 1
2 2
2 1
2 1
1 2
2 2
2 1
1 1
2 1
1 1
1 2
2 2
2 2
1 1
2 2
2 1
1 2
2 1
1 1
1 2
1 2
2 2
2 2
2 1
1 1
1 1
2 1
1 2
1 2
2 2
1 1
1 1
1 1
2 2
1 1
1 2
1 1
2 2
2 2
2 2
2 1
2 2
1 1
2 1
2 1
1 1
1 1
1 1
1 1
1 2
1 2
1 2
1 1
1 1
2 1
2 1
2 1
1 2
2 2
1 1
1 2
2 1
1 1
2 2
2 1
1 1
1 1
2 1
2 1
1 2
2 2
2 1
1 2
1 1
1 2
2 2
1 2
2 2
1 1
2 2
2 2
2 2
1 1
2 1
2 1
1 2
2 2
1 2
2 2
2 2
2 2
2 2
2 2
2 2
2 2
1 2
1 1
2 2
2 2
1 2
2 2
1 2
1 2
2 2
1 1
2 2
1 2
2 1
1 2
2 1
2 2
1 2
2 2
2 2
2 1
2 2
1 2
1 2
1 1
1 1
2 2
1 2
2 1
2 2
1 2
2 1
2 2
1 1
2 2
2 1
1 2
2 1
2 2
1 2
2 2
1 2
2 1
2 2
1 1
2 1
2 2
1 2
2 1
1 2
1 1
1 2
1 1
1 1
2 1
1 1
1 2
1 1
2 1
2 1
2 1
1 1
2 2
1 2
2 1
2 1
2 1
2 2
2 2
1 2
2 1
1 2
2 2
1 1
1 1
1 2
1 1
2 1
1 2
2 2
2 1
2 2
2 2
2 1
2 1
2 1
1 2
1 1
2 2
2 1
2 1
2 1
2 1
2 2
1 1
1 1
2 2
2 1
2 2
2 1
2 2
1 1
1 2
1 2
1 2
2 1
1 2
1 1
2 1
2 2
2 2
1 2
1 2
1 1
2 1
2 2
1 1
2 2
1 2
1 2
2 2
2 1
2 1
1 1
2 1
1 2
1 1
2 2
2 2
2 2
1 2
2 2
1 1
1 1
1 1
1 2
2 1
1 2
1 1
1 2
2 1
2 1
1 1
1 2
1 1
1 1
1 1
2 2
1 2
1 1
1 1
1 2
1 1
1 1
1 1
2 2
2 2
1 1
2 2
2 1
2 2
1 1
1 2
1 2
1 2
2 2
1 2
2 2
2 1
2 1
1 2
2 1
2 2
1 1
1 1
2 2
1 2
1 2
1 2
2 2
2 2
1 2
2 2
1 2
1 1
1 2
2 1
2 1
1 2
1 2
1 2
2 1
2 1
2 2
2 1
1 2
2 2
2 2
2 2
1 1
1 1
1 1
2 2
2 1
1 1
1 2
1 2
1 2
1 1
2 2
2 1
1 1
1 1
2 2
1 2
2 1
1 1
1 1
2 1
1 2
1 2
1 1
2 2
2 1
1 1
2 1
2 1
1 1
1 2
2 1
2 1
1 2
1 1
1 2
2 1
2 1
1 1
1 1
1 2
2 2
1 2
1 2
1 2
1 1
1 1
2 1
2 2
1 1
2 1
1 1
2 1
2 1
2 1
1 2
2 2
1 2
2 1
2 1
2 2
1 2
1 1
1 2
1 2
1 2
2 1
1 2
2 1
1 2
1 2
2 1
1 2
2 1
1 1
1 2
1 1
1 2
2 1
1 2
2 2
1 2
1 2
2 2
2 2
1 1
1 2
2 1
1 1
2 1
2 1
2 2
1 2
1 2
1 1
1 2
1 2
2 1
1 1
2 2
2 2
2 1
1 1
1 1
2 1
2 1
2 1
1 1
1 2
1 2
2 1
1 1
1 2
2 2
2 1
2 1
1 1
2 2
2 1
2 1
1 1
1 2
1 1
2 1
2 1
1 2
2 1
1 1
2 1
1 2
1 2
1 2
1 1
2 2
1 2
2 1
1 1
2 2
2 2
2 1
2 2
1 1
1 2
1 1
1 1
2 2
2 2
1 2
1 2
2 2
2 1
2 2
2 2
2 2
2 2
1 2
1 1
2 2
1 2
2 2
1 1
1 2
1 2
1 1
1 2
1 2
2 2
1 2
1 2
2 1
1 1
1 2
1 1
2 1
2 1
1 1
1 2
1 1
1 2
1 2
1 2
2 2
1 2
1 2
2 1
2 2
1 2
2 1
1 1
1 1
1 1
2 2
2 2
1 1
1 2
1 1
2 1
1 2
2 2
2 2
1 1
2 1
2 2
1 2
2 2
1 2
1 2
1 2
2 1
1 1
2 1
1 1
1 2
1 1
2 1
1 1
2 2
1 1
2 2
1 2
2 1
2 1
2 2
1 2
2 2
2 1
1 1
2 1
2 1
1 1
1 1
1 2
2 1
1 1
2 2
2 2
2 1
1 2
2 1
2 1
2 1
2 1
1 2
2 2
2 1
2 1
2 1
1 1
1 1
1 2
2 2
2 2
2 2
2 2
2 1
2 2
2 1
2 1
2 1
1 1
1 1
1 2
1 1
1 2
1 1
2 2
2 2
2 1
2 1
2 2
2 1
1 2
2 1
1 2
2 2
1 1
1 1
2 2
1 2
2 2
2 2
1 1
1 1
1 2
2 1
2 1
2 2
1 2
2 2
2 2
1 1
1 2
1 1
1 2
2 2
2 1
1 2
2 2
1 1
2 1
2 2
1 1
2 1
2 2
1 1
1 2
1 1
2 1
1 1
2 2
2 2
1 1
2 2
2 1
2 1
1 2
1 1
2 2
1 2
1 1
2 1
2 2
1 2
2 2
2 1
2 2
2 1
2 1
1 2
1 1
1 1
2 2
2 2
2 2
2 2
1 1
1 2
2 1
1 1
2 1
2 2
1 1
2 1
1 1
2 1
1 1
2 1
1 1
2 1
2 1
2 1
1 1
2 1
1 1
2 1
1 2
1 1
1 2
2 1
1 2
1 1
2 2
2 2
2 2
1 1
2 2
1 2
2 1
1 1
1 2
2 1
2 1
1 2
2 1
2 2
2 2
1 2
1 1
1 2
1 1
2 2
2 2
1 2
2 1
1 2
1 2
1 2
1 1
2 2
1 2
1 1
2 1
2 1
2 2
1 1
2 1
1 2
2 1
2 2
1 2
2 2
2 1
1 2
1 1
2 1
2 2
2 2
2 1
2 2
2 2
2 1
1 2
2 2
2 1
1 1
2 1
1 1
2 2
1 2
2 1
2 1
1 2
2 2
1 2
2 2
2 1
2 1
2 2
1 2
2 2
1 1
1 1
1 2
2 1
2 2
2 2
2 2
1 1
2 2
2 1
1 2
1 2
1 2
2 1
2 2
2 2
2 1
1 1
2 1
1 2
2 2
2 1
1 1
2 1
2 1
1 2
2 2
1 1
2 2
1 2
2 1
1 1
1 1
1 1
2 2
1 1
2 2
2 2
2 1
2 1
1 1
2 1
1 2
2 1
2 1
2 2
1 2
2 2
1 1
1 1
2 1
2 2
1 2
2 2
2 1
2 2
1 2
1 2
1 1
1 2
1 2
1 2
1 1
2 1
1 1
1 2
2 1
2 2
2 2
1 1
1 2
1 1
1 2
1 1
2 2
2 1
1 1
2 2
2 2
1 1
1 1
2 1
2 1
1 2
1 2
2 2
1 1
1 1
1 2
2 1
1 2
2 1
1 2
1 2
2 1
2 1
1 1
2 2
2 2
1 2
1 1
1 2
1 2
1 1
2 1
1 1
2 2
1 2
1 1
1 1
2 1
2 1
1 1
1 1
1 1
2 2
1 2
2 1
2 2
2 1
1 1
1 2
1 2
1 1
2 2
2 2
1 2
2 1
1 1
1 2
1 2
2 1
2 1
2 1
1 1
1 1
1 1
1 2
2 2
2 1
1 2
1 1
1 1
2 1
2 2
1 2
1 1
2 2
1 2
1 2
1 2
1 1
2 1
1 1
2 2
2 1
2 2
2 1
2 2
2 2
2 2
1 2
1 1
2 2
2 2
1 2
2 1
2 1
1 1
1 1
1 1
2 2
2 1
2 1
2 1
1 2
1 2
2 1
1 1
2 2
1 2
2 1
1 1
2 1
1 1
2 1
1 2
2 2
1 2
2 1
2 2
2 1
1 1
1 1
2 1
2 1
1 1
2 1
1 2
1 2
2 2
2 2
2 2
1 1
1 2
2 2
1 1
1 2
1 2
1 1
2 2
2 2
2 1
2 2
2 1
1 1
2 2
1 2
1 2
2 2
1 1
2 1
1 1
2 2
2 1
1 2
1 1
2 2
2 1
1 2
2 2
2 2
2 1
1 2
2 2
1 1
1 2
1 1
2 1
2 1
2 1
1 2
2 2
2 1
2 1
1 2
1 2
1 1
1 2
2 2
2 1
2 1
2 2
2 2
2 2
1 2
1 1
1 1
2 2
1 2
1 2
2 1
2 2
2 1
2 2
2 1
2 1
1 1
2 1
1 2
2 1
1 2
1 1
1 2
2 2
2 1
1 1
1 2
1 1
1 1
2 2
2 2
1 1
2 1
1 1
2 2
1 2
1 1
2 2
1 2
2 1
2 2
2 1
1 1
1 1
1 2
1 2
1 1
2 1
2 1
2 2
2 1
1 2
2 2
2 2
2 1
1 1
1 1
1 2
1 2
1 1
2 1
2 1
2 1
2 1
2 1
1 1
1 2
2 2
1 2
2 2
2 1
2 2
1 1
1 2
1 1
2 2
1 1
1 2
2 1
2 1
1 1
2 2
1 2
1 1
1 2
2 1
1 1
2 2
1 2
2 2
2 1
2 1
1 1
2 1
2 1
2 2
1 1
1 1
1 1
1 1
2 1
2 1
1 2
2 1
2 1
2 1
2 1
2 1
1 2
2 2
2 2
1 2
2 2
2 2
2 1
1 1
2 1
2 2
1 1
2 2
2 2
1 2
1 2
1 1
1 2
1 2
1 2
1 2
1 2
2 1
1 2
1 1
2 2
2 1
2 2
1 2
2 2
2 1
2 1
2 1
2 2
2 1
2 1
2 1
1 1
2 2
1 2
1 1
1 1
1 2
1 1
2 1
2 2
2 1
1 2
1 2
2 1
1 2
1 2
2 2
1 1
2 2
1 1
2 1
1 1
2 1
2 2
2 2
2 2
2 2
2 2
2 2
2 2
2 1
1 2
1 2
2 2
2 2
2 1
1 1
1 2
2 1
2 1
1 1
1 2
2 2
1 2
1 2
1 2
2 2
1 2
2 2
1 1
1 2
1 1
2 1
2 1
1 2
1 1
2 2
2 2
2 1
1 2
2 2
2 1
1 1
1 2
2 1
1 1
1 1
1 1
2 2
2 2
1 2
1 1
1 2
2 1
1 2
2 2
2 2
1 2
2 2
1 1
2 1
2 1
1 1
1 1
1 2
2 1
1 2
1 2
2 1
1 2
2 2
1 2
1 1
2 1
1 2
1 2
2 1
1 2
2 2
2 2
2 1
1 1
1 1
1 1
1 2
1 2
1 1
2 2
1 1
2 2
1 2
1 1
1 1
1 1
2 1
2 1
1 1
1 2
1 2
1 2
1 1
1 2
2 1
2 1
1 2
2 2
1 1
1 1
2 1
1 1
2 1
2 1
1 2
2 2
1 2
2 2
2 1
1 2
2 2
2 1
2 1
1 1
1 1
1 1
2 2
2 2
1 1
1 2
1 1
1 1
1 1
2 1
1 2
1 2
2 1
1 2
1 2
2 1
1 1
1 1
1 2
1 2
1 2
2 2
2 1
2 1
2 1
2 1
2 2
2 2
1 2
2 1
2 1
2 1
1 1
2 2
2 2
1 1
1 1
1 1
1 2
2 2
1 1
1 1
1 2
1 1
1 2
2 2
1 2
2 1
1 2
1 2
1 2
2 1
2 2
2 2
2 1
1 1
2 2
2 1
1 1
2 2
1 2
2 2
1 2
1 2
2 1
1 2
2 2
1 2
1 1
1 1
2 1
1 2
2 2
1 1
2 2
1 2
2 1
1 1
2 2
2 1
2 1
1 2
1 1
1 1
2 1
1 2
2 1
1 2
2 1
1 1
1 1
1 1
1 2
1 2
1 1
1 2
1 2
1 2
2 1
1 1
1 1
1 1
1 2
1 1
2 2
2 2
2 1
1 2
1 1
2 1
2 1
1 2
2 1
2 1
2 1
1 1
1 1
1 1
2 2
2 2
1 1
2 1
2 1
1 1
1 2
2 2
1 2
2 2
2 2
1 1
1 2
1 1
2 1
1 1
2 2
1 1
2 1
2 2
2 2
2 2
2 2
1 1
2 1
1 1
1 1
1 1
1 2
1 2
2 1
1 2
2 2
2 2
1 2
2 2
2 1
1 2
2 2
2 2
1 1
2 1
1 1
1 1
1 2
2 1
1 1
2 2
2 1
2 2
2 1
2 1
1 2
1 1
1 2
1 1
2 1
1 1
1 2
2 2
2 2
1 1
1 1
1 2
1 1
2 1
2 2
2 2
2 1
1 2
1 2
1 2
1 2
1 1
1 2
2 2
2 1
1 1
2 2
1 1
1 1
1 1
2 1
2 2
2 1
2 1
2 2
2 2
2 1
1 1
1 1
1 1
2 1
1 2
1 2
1 1
2 2
2 1
1 2
1 2
2 2
2 2
2 2
2 1
1 2
1 2
2 2
1 2
1 2
1 2
1 1
1 1
2 1
1 2
2 2
2 1
1 1
2 1
2 2
2 1
2 2
1 1
1 2
2 1
2 2
1 1
1 2
1 2
1 1
1 2
1 1
2 1
2 1
1 1
1 1
1 2
1 1
2 2
1 1
1 2
1 2
1 2
1 1
2 1
1 1
2 1
2 2
2 2
1 2
2 2
1 1
2 2
2 2
2 1
1 1
1 2
1 1
1 1
2 2
1 1
1 2
1 2
1 1
1 2
1 1
1 1
2 1
1 1
2 1
1 2
2 1
1 2
2 1
1 2
2 2
2 2
2 1
1 2
1 2
1 2
1 1
2 2
1 1
2 1
2 1
1 1
2 2
1 1
2 1
2 2
1 2
2 1
2 1
2 2
1 2
1 2
2 2
2 2
2 2
2 2
1 2
1 2
2 2
2 2
2 1
1 2
1 1
1 2
2 1
1 2
2 2
1 2
1 1
2 2
2 2
2 1
2 1
1 1
2 2
1 1
2 1
1 2
2 1
1 2
2 1
2 2
2 2
2 1
2 1
1 2
1 1
1 1
1 1
2 1
1 1
2 1
1 2
1 1
2 2
2 2
2 2
2 1
1 2
1 1
2 2
2 2
1 1
1 2
1 1
1 1
1 1
1 2
2 2
1 2
1 1
1 2
1 2
2 1
1 1
1 2
1 1
2 1
1 1
1 1
1 1
2 1
1 2
2 2
2 2
1 2
1 2
2 1
1 1
1 2
1 2
2 2
1 2
1 1
1 1
1 2
2 1
2 1
1 2
1 1
2 1
1 2
1 1
2 1
1 2
2 2
2 1
1 1
2 2
2 2
2 2
2 2
1 2
1 1
1 2
2 2
2 2
1 2
2 1
1 2
1 2
1 2
1 2
2 2
1 1
1 2
2 2
2 2
1 1
2 1
1 2
1 2
2 1
2 1
2 1
1 1
1 1
1 1
2 1
1 2
2 1
2 1
1 2
2 1
2 1
1 1
2 2
2 1
1 1
1 2
2 1
2 1
1 2
2 1
2 1
1 1
2 1
1 2
1 1
2 2
1 1
2 1
2 2
1 2
1 2
2 1
1 1
2 1
1 1
2 1
2 2
1 2
1 1
2 2
1 2
1 1
1 1
2 2
2 2
1 1
2 2
1 2
1 1
2 2
1 2
1 2
2 1
1 1
2 2
1 2
1 1
2 2
2 2
1 1
1 1
1 2
1 2
1 2
1 1
1 2
2 2
2 2
1 1
1 2
2 1
2 1
1 2
1 2
2 2
1 1
2 2
1 2
2 2
2 1
1 2
1 2
1 1
2 2
2 1
2 2
2 2
2 2
2 2
2 1
1 2
2 2
2 2
1 2
2 1
1 2
1 2
2 2
1 2
1 2
2 2
1 2
1 2
2 1
1 2
2 1
1 2
2 1
2 1
1 1
1 2
2 1
1 2
1 1
2 1
1 1
1 2
1 1
1 1
1 1
1 1
2 1
2 2
2 2
1 2
1 1
1 2
2 1
1 2
2 2
2 2
2 2
2 1
1 2
2 2
2 2
2 1
2 2
1 1
2 1
2 2
2 2
1 2
1 1
2 1
2 2
1 2
2 1
2 2
2 2
2 2
2 2
1 1
2 1
1 2
1 2
1 1
2 2
1 2
1 2
1 2
1 2
2 1
1 2
1 1
2 2
2 1
2 1
1 2
1 1
2 2
1 2
1 2
1 2
1 1
2 2
1 1
1 1
1 2
2 2
2 1
1 2
2 1
1 1
1 2
1 1
2 2
1 1
1 2
2 2
1 2
1 2
1 2
1 2
2 1
1 1
2 2
1 2
2 1
1 1
1 1
1 2
1 2
2 1
2 2
1 2
2 2
2 2
2 2
1 2
1 1
1 2
1 2
1 2
2 2
1 1
2 2
1 1
1 2
1 2
2 1
1 2
1 1
1 1
2 2
1 2
1 1
1 2
2 1
1 1
1 2
2 2
1 2
2 1
1 1
1 1
2 1
2 2
1 1
1 2
1 1
2 2
1 1
1 1
2 2
2 2
1 2
1 1
2 1
2 1
1 2
2 2
2 2
1 2
2 2
1 2
1 1
2 1
1 2
1 1
1 2
1 2
1 2
2 1
2 1
2 1
2 2
1 1
2 2
1 2
1 2
2 2
2 2
2 2
1 2
2 1
2 1
1 2
2 2
1 2
1 1
2 2
2 2
2 2
1 1
2 2
2 1
1 1
2 1
1 2
2 2
2 2
1 2
2 1
2 2
2 1
1 2
2 1
1 1
2 2
1 1
2 1
2 2
2 1
1 2
1 2
1 1
1 2
1 1
1 1
2 2
1 2
1 2
2 2
2 1
1 1
1 1
1 2
1 1
1 2
2 2
2 2
1 1
2 2
1 2
1 1
1 1
1 1
2 1
1 2
1 1
2 2
2 2
2 2
1 1
1 1
1 2
2 2
2 1
2 2
1 1
1 1
1 1
2 2
1 2
1 1
2 2
2 1
2 1
1 2
1 1
2 1
1 1
2 1
1 1
1 1
1 1
2 1
1 2
1 1
1 1
2 2
2 2
2 2
2 2
2 1
2 2
2 1
1 1
1 2
1 2
2 1
2 2
2 1
1 1
1 2
2 2
2 1
1 1
1 1
1 1
1 1
1 2
1 1
2 2
1 1
2 2
1 2
1 2
2 1
2 1
2 1
1 1
2 1
2 2
2 2
1 1
2 1
1 2
2 2
2 1
1 2
2 1
2 2
1 2
2 1
1 1
2 2
2 1
1 1
2 2
2 1
2 1
1 2
1 1
1 1
1 1
1 2
1 2
1 1
1 2
2 1
1 2
2 1
2 1
1 1
2 2
1 1
2 2
1 1
1 1
1 2
2 2
2 2
1 1
1 2
2 2
2 2
2 1
1 1
1 2
1 2
1 1
1 1
1 2
1 2
2 2
1 1
1 1
2 2
2 1
1 1
1 1
1 2
1 1
2 1
1 1
2 1
2 1
2 2
1 2
2 1
1 1
2 1
1 2
2 2
1 2
1 2
1 2
2 2
2 1
1 1
1 2
1 2
2 2
1 2
2 2
2 2
1 2
1 2
2 1
2 1
1 1
2 1
2 2
1 2
1 1
2 1
1 1
2 2
1 2
1 1
2 1
2 1
2 2
1 1
2 1
2 1
2 2
2 2
2 1
2 1
1 2
1 1
2 2
2 2
1 1
1 2
2 1
2 2
1 1
1 1
2 1
1 1
1 2
1 2
2 1
1 1
2 2
1 1
1 1
1 2
2 1
2 2
1 1
1 2
2 1
1 2
2 1
2 1
2 1
1 2
2 1
2 2
2 2
1 1
2 2
1 2
2 2
2 2
2 1
2 2
2 1
1 2
1 2
1 1
1 1
1 2
1 2
1 2
1 1
1 2
1 2
1 1
2 2
1 2
1 1
1 2
1 1
1 1
1 1
2 2
1 2
1 2
1 2
1 2
2 2
1 1
1 1
1 1
1 2
1 2
1 2
2 1
2 1
2 1
2 1
2 2
2 2
2 2
1 2
1 2
2 1
1 2
2 1
1 2
2 2
2 2
1 2
2 2
1 1
1 1
2 2
2 2
1 2
1 1
2 2
2 2
2 2
1 2
1 1
1 2
2 1
1 2
1 1
1 1
1 2
2 1
1 2
2 2
2 1
2 1
2 2
2 2
2 1
1 2
2 1
1 2
2 2
1 2
2 2
1 1
1 1
1 1
1 1
2 1
1 1
1 2
1 2
2 2
2 1
2 1
2 1
2 1
2 1
2 1
2 1
1 2
2 2
2 2
2 2
2 2
1 1
1 2
2 2
1 1
2 1
2 2
1 2
1 2
2 2
1 2
1 1
1 2
2 2
2 2
1 1
1 2
1 1
1 2
1 2
2 1
1 2
1 2
1 2
2 2
1 1
1 1
1 2
2 2
2 1
1 1
2 2
1 2
2 2
2 2
2 1
2 1
1 1
2 1
1 2
1 2
2 1
1 2
2 2
2 1
1 1
2 2
2 1
1 2
2 2
1 1
1 1
1 2
1 1
1 1
2 2
2 1
2 2
1 2
1 1
1 2
1 1
2 1
1 1
2 1
1 1
1 2
1 2
1 2
1 1
2 2
2 2
1 2
1 1
1 2
2 1
1 2
1 2
1 2
1 1
2 2
2 1
1 1
2 1
1 1
1 1
2 1
2 1
2 1
2 2
2 2
1 2
2 1
1 2
2 2
1 1
2 1
2 1
2 2
1 1
1 2
2 1
1 1
1 2
2 2
2 2
2 2
1 2
2 2
2 2
2 2
1 1
1 1
2 1
2 1
2 2
1 2
1 2
1 2
1 1
1 1
1 1
2 2
2 2
1 1
2 1
1 2
2 2
2 2
2 1
1 2
2 1
2 1
1 2
1 1
2 2
1 2
1 1
2 1
1 1
1 2
1 1
2 2
1 1
1 1
2 2
2 1
2 2
1 2
2 1
2 1
2 1
2 1
2 2
2 2
2 2
2 1
1 2
1 2
1 1
1 2
2 2
1 1
2 2
1 2
2 2
2 1
1 2
2 2
2 2
2 1
1 2
1 1
1 2
1 1
2 1
1 1
2 1
1 1
1 2
1 1
1 1
2 2
2 2
2 2
1 2
1 2
1 2
1 2
2 1
1 2
1 2
1 2
2 1
2 2
1 2
1 1
1 2
1 2
2 1
2 1
1 2
2 1
2 1
1 2
2 2
2 2
1 1
1 1
1 2
1 1
1 2
1 2
1 1
2 1
1 1
1 2
1 1
1 2
1 1
2 1
1 1
2 2
2 1
2 2
2 1
2 2
2 2
1 2
2 1
1 2
2 1
2 2
1 1
1 1
1 1
2 2
2 2
2 2
2 1
2 1
2 2
1 2
2 2
2 1
2 1
1 2
1 2
1 1
2 2
2 1
1 1
2 2
2 1
2 2
1 1
1 1
1 1
1 1
1 1
2 2
1 1
1 1
2 1
1 2
2 1
1 2
1 1
2 2
1 1
2 1
2 2
2 1
2 1
1 2
2 2
1 1
1 2
1 1
2 2
2 2
1 2
2 1
1 2
2 1
1 1
2 1
1 2
2 1
1 1
2 1
1 1
1 2
2 1
2 1
2 1
1 1
1 1
1 2
2 2
2 2
2 1
1 1
1 1
1 1
1 2
1 1
1 2
2 2
2 2
1 1
1 2
1 1
1 1
2 2
2 2
1 2
2 2
1 2
2 1
2 2
1 2
1 2
1 1
2 1
1 1
2 1
1 2
2 2
1 2
1 1
1 2
1 1
1 2
2 1
1 1
1 2
2 1
2 1
2 2
2 2
1 2
1 1
2 2
2 2
2 2
1 2
1 1
1 1
2 1
2 1
2 2
2 2
2 1
1 1
1 2
1 2
2 2
2 1
2 2
2 1
1 1
2 2
2 2
2 1
2 1
2 2
2 2
1 2
2 1
2 1
2 2
1 1
2 1
1 1
2 2
2 1
1 1
2 2
1 1
2 2
2 2
2 1
2 2
1 2
1 1
1 1
2 2
1 1
2 1
2 1
2 1
2 2
2 1
2 1
1 2
2 2
2 1
1 2
1 2
2 1
2 2
2 1
2 2
2 1
2 2
1 1
1 1
2 1
2 1
1 2
2 2
2 2
1 1
2 1
2 2
1 2
1 2
2 1
2 2
1 1
1 1
1 1
2 2
2 2
2 2
2 2
1 1
1 1
2 1
2 1
1 2
2 2
1 2
2 2
1 2
1 1
1 1
1 2
1 1
2 1
2 2
1 2
2 2
1 2
1 2
2 1
2 2
2 2
2 1
2 1
2 2
2 2
2 2
1 1
2 1
1 1
1 2
2 2
2 2
2 2
2 1
2 2
1 1
1 2
2 2
1 1
1 2
2 1
1 1
1 1
2 2
1 1
1 2
1 2
2 1
1 1
1 1
2 2
2 1
2 1
2 1
1 2
1 2
1 2
1 1
2 1
2 1
1 2
1 1
2 2
2 2
2 1
1 1
1 1
2 2
2 2
2 1
1 1
2 1
2 1
1 1
1 2
2 2
2 2
1 2
2 2
2 1
2 2
2 2
1 1
2 1
2 2
1 1
2 1
2 1
1 1
2 1
2 2
1 1
2 2
2 1
1 2
2 1
2 2
2 1
1 2
2 1
1 1
1 1
1 2
1 2
1 2
2 2
1 1
2 2
2 2
2 2
2 2
1 1
2 2
1 1
2 1
2 2
2 1
2 1
1 2
1 2
1 1
1 1
1 1
2 2
2 1
2 2
2 1
1 1
2 1
2 1
2 2
1 2
2 2
1 2
1 1
1 2
2 2
2 2
2 1
1 2
2 1
2 1
1 2
2 2
2 2
1 2
2 1
1 1
1 2
2 2
2 1
2 2
2 1
1 1
2 2
2 1
2 2
1 2
2 1
2 1
2 1
1 1
2 2
1 2
2 1
2 1
1 1
1 1
1 2
2 1
2 1
1 1
2 1
1 2
1 2
1 2
2 2
2 2
2 2
2 2
1 2
2 1
2 1
2 1
1 1
1 2
1 2
1 1
1 2
1 1
2 1
2 2
1 2
1 2
2 2
2 2
1 2
2 1
1 1
1 1
2 1
1 1
2 2
2 1
2 2
1 2
1 2
1 1
2 2
2 2
2 2
2 1
1 2
2 1
2 2
2 1
1 2
2 2
2 1
2 2
2 1
1 2
1 2
1 1
2 2
1 1
1 2
2 1
1 2
1 2
1 1
1 1
1 2
1 1
2 2
2 1
1 1
1 1
2 2
2 1
2 2
1 1
2 1
1 2
2 1
2 2
2 1
1 2
1 1
2 2
1 1
2 2
1 1
1 1
1 1
1 2
1 2
2 2
1 2
2 1
1 1
1 2
1 1
1 2
1 1
2 1
2 1
2 1
2 2
2 2
1 1
2 1
1 2
1 2
2 2
1 2
2 1
2 2
2 1
2 1
2 1
1 1
2 1
1 1
2 2
2 2
2 2
2 1
1 1
2 1
2 1
1 2
2 1
1 1
1 2
2 2
2 1
1 1
2 2
1 1
2 1
1 1
2 2
1 2
1 2
2 1
1 2
1 1
1 2
1 1
1 2
1 2
2 2
2 1
1 1
1 2
1 2
1 2
1 2
2 1
1 2
1 2
2 2
2 2
1 1
1 2
2 2
1 1
1 2
2 2
2 1
2 1
1 2
1 1
1 1
1 1
1 2
2 1
2 1
1 1
1 2
2 1
2 1
2 1
2 2
1 1
2 1
1 1
1 2
2 2
1 1
1 2
1 1
2 1
2 2
2 1
1 1
1 2
1 1
2 1
1 2
2 1
1 2
1 2
2 1
2 1
1 1
2 1
1 1
2 1
1 1
2 2
1 2
2 2
2 2
1 1
2 1
2 1
1 2
2 1
2 2
1 1
2 2
2 1
1 2
2 2
1 2
2 1
2 2
2 2
1 1
2 2
1 2
2 2
1 2
1 1
2 2
1 1
1 2
2 2
1 1
2 2
1 1
2 1
2 2
2 2
2 1
1 1
1 1
1 1
2 2
1 1
1 2
1 2
2 1
1 1
1 1
2 1
1 2
2 1
1 2
2 2
2 1
2 1
1 1
1 1
2 1
1 1
2 2
1 2
1 2
1 1
1 2
1 2
2 2
2 2
2 2
2 2
2 2
2 1
2 1
1 1
2 1
2 2
1 2
2 1
2 2
2 1
2 1
1 1
1 2
1 2
1 1
1 1
1 1
1 2
2 1
2 2
2 1
1 2
2 1
2 1
2 1
1 1
2 1
2 1
2 2
2 1
2 1
2 1
1 2
2 1
2 1
2 2
1 1
2 1
2 2
1 1
2 1
2 2
2 2
2 2
1 1
1 1
1 1
1 2
2 1
2 2
1 1
2 2
1 2
2 1
1 1
1 1
2 1
2 1
2 1
1 1
1 1
1 2
1 1
1 1
2 2
2 2
2 2
2 1
2 2
1 2
1 1
2 1
2 1
2 1
1 2
2 2
1 1
1 2
1 1
2 1
2 1
1 1
2 1
2 1
2 1
1 2
2 1
1 1
2 1
2 2
1 2
1 2
2 2
1 2
2 1
1 2
1 2
2 2
2 2
1 2
1 2
1 2
1 1
1 1
2 2
2 2
2 2
2 1
1 1
2 1
1 2
2 1
2 2
2 1
1 1
2 1
2 2
2 1
1 1
1 1
2 2
2 1
1 1
1 1
2 1
1 2
2 2
1 1
2 2
2 1
2 1
2 2
2 1
1 2
2 1
2 2
2 1
2 2
2 2
2 2
2 1
1 2
2 1
1 2
2 1
2 2
1 1
1 2
1 1
1 1
2 1
2 2
1 1
1 2
2 2
1 1
2 1
1 1
1 2
1 1
1 1
1 2
1 1
2 2
2 1
2 2
2 1
1 2
2 2
2 2
2 2
1 2
1 1
2 1
1 2
2 2
1 1
2 2
2 2
1 2
2 1
1 2
1 1
2 1
1 1
2 2
2 1
2 1
2 1
1 2
1 2
2 2
2 1
1 1
1 2
2 2
1 1
1 2
1 2
2 2
2 1
1 1
1 2
2 1
2 1
2 1
1 2
1 2
2 2
2 1
2 1
1 2
1 2
2 2
1 2
2 2
2 1
2 2
1 1
1 2
2 2
1 1
1 2
2 2
2 2
2 1
1 1
1 2
2 1
1 1
1 2
1 1
1 1
2 1
2 2
2 2
2 1
2 2
1 1
2 2
2 1
2 1
1 2
1 2
2 1
1 2
1 2
1 1
2 1
2 2
2 2
1 2
2 1
1 2
1 2
2 2
2 2
1 1
2 2
2 1
1 2
1 2
1 2
2 2
2 1
2 1
2 1
2 2
2 2
1 1
2 1
2 2
2 1
1 1
2 1
1 2
2 2
2 2
1 1
2 1
1 2
1 2
2 1
2 1
2 1
1 1
2 1
2 1
1 1
2 2
2 1
1 2
2 2
1 2
1 1
1 2
1 1
1 2
1 1
1 2
1 2
2 1
2 1
1 2
2 2
1 1
2 2
2 2
2 2
1 1
1 2
1 1
2 2
1 1
2 2
1 1
2 2
2 2
2 2
1 1
1 2
2 1
1 1
2 2
1 1
2 1
1 1
1 2
1 2
1 2
2 1
2 2
1 2
1 1
1 1
1 2
1 2
1 2
2 1
1 2
1 1
2 2
2 2
2 1
1 2
2 2
1 2
2 2
1 1
1 1
2 1
2 2
1 1
2 1
2 2
1 1
2 2
2 2
1 2
2 1
2 2
2 2
1 1
1 1
2 2
1 1
2 2
2 1
2 1
1 2
1 1
1 1
2 1
1 2
2 1
1 2
1 2
1 2
2 2
1 2
2 2
1 1
1 2
2 1
2 1
1 2
2 2
1 2
2 1
1 1
2 2
2 2
2 1
2 1
1 1
1 1
1 2
1 1
2 2
2 1
2 1
1 1
2 2
2 1
1 1
1 1
1 2
1 2
2 1
1 2
1 2
1 1
1 1
1 1
1 2
2 2
1 2
1 2
2 2
2 2
1 1
2 1
2 1
2 2
1 1
1 1
2 2
1 2
2 1
2 1
1 2
1 1
2 1
1 2
2 2
1 1
1 2
2 1
1 2
1 2
2 2
2 1
2 2
1 2
2 1
2 2
1 2
1 2
2 1
2 1
1 2
2 1
1 1
1 2
2 2
2 2
1 2
2 1
1 1
1 2
1 2
2 2
1 2
2 1
1 2
1 2
2 2
2 2
1 2
2 1
1 1
2 2
1 1
1 2
1 1
1 1
2 1
2 2
1 2
1 2
1 2
1 2
2 2
2 1
1 1
1 2
1 2
1 1
2 2
2 2
2 1
2 2
2 2
2 1
1 1
1 2
2 2
2 1
2 2
2 2
1 2
2 2
2 1
2 2
2 2
2 2
1 1
1 2
2 2
1 1
2 2
2 2
2 2
1 1
2 1
1 2
2 1
2 1
2 1
1 1
1 2
1 1
2 2
1 1
2 1
2 2
2 2
1 1
2 1
2 2
2 2
2 2
2 2
2 2
1 1
2 1
2 1
1 2
1 2
1 2
1 2
1 1
2 2
1 2
2 1
1 1
2 1
2 2
1 1
2 2
2 1
1 2
1 2
2 1
2 2
1 1
1 2
2 2
2 1
2 2
2 2
2 2
2 1
1 1
2 2
2 1
1 1
2 2
2 2
1 1
1 2
2 2
2 2
2 2
2 2
2 2
1 1
1 2
2 2
2 1
1 1
2 2
1 1
2 2
1 1
2 2
1 1
2 2
1 2
2 2
2 2
1 1
1 1
2 2
2 1
2 1
2 2
2 1
2 2
1 1
2 2
1 1
1 2
1 1
2 1
2 1
1 2
2 1
2 2
2 2
1 2
2 2
2 1
2 1
1 2
2 1
1 1
1 1
1 1
1 1
2 1
2 1
1 1
2 1
2 2
2 1
1 1
2 2
1 2
2 2
1 1
2 1
1 2
2 2
1 1
1 1
2 2
2 2
2 1
2 2
2 2
2 1
2 1
1 2
1 2
1 2
2 1
1 1
2 1
1 2
1 1
2 1
2 2
1 1
1 2
1 2
1 1
1 2
1 1
2 2
1 1
1 1
1 1
2 2
2 1
1 2
2 1
2 1
2 1
2 1
2 1
1 1
2 1
2 2
2 2
1 1
1 1
2 1
1 2
2 2
2 2
1 1
1 1
1 1
1 2
2 2
1 1
2 1
1 1
1 1
2 2
1 2
1 1
1 1
2 1
2 1
1 2
2 1
1 2
1 1
2 1
1 1
1 1
1 2
1 1
1 2
1 2
2 2
2 2
2 1
1 2
1 2
1 1
2 2
2 1
1 1
1 1
1 2
2 1
2 2
2 1
2 1
1 2
1 1
1 1
2 2
1 1
1 1
1 2
2 1
2 1
2 1
1 2
1 1
1 2
2 2
2 1
2 2
2 2
1 2
2 2
2 1
1 1
1 1
2 1
2 1
1 2
1 1
2 2
2 2
2 2
1 2
1 1
1 2
2 1
1 1
2 1
1 1
1 2
1 1
2 1
2 1
1 2
2 1
2 2
2 1
2 1
2 2
1 1
1 1
2 1
1 1
2 2
1 2
2 2
2 2
1 2
2 1
2 1
1 1
2 1
1 1
1 2
2 1
2 1
1 2
2 1
1 1
2 2
2 1
1 1
1 1
1 2
1 2
2 2
2 1
2 1
1 1
2 1
1 2
1 1
1 2
1 2
2 1
2 2
2 2
1 1
1 2
1 2
1 1
2 1
2 2
1 2
2 2
1 1
2 2
1 2
2 2
1 2
1 1
1 2
2 1
1 1
2 1
2 1
1 2
2 1
1 2
1 1
1 2
1 1
1 2
1 2
2 2
2 1
1 1
2 2
1 1
2 1
1 1
2 1
2 2
2 2
1 1
2 1
1 1
2 2
1 1
1 2
1 1
2 2
1 1
2 1
2 1
1 2
1 1
2 2
2 2
1 2
1 2
1 1
1 2
2 2
2 1
1 1
1 1
1 2
2 2
2 2
1 1
1 1
2 1
2 1
1 1
1 1
1 1
1 1
1 2
1 1
1 2
1 1
2 1
2 1
2 2
2 2
2 1
1 1
2 1
1 2
2 2
1 1
1 1
2 1
1 1
1 1
2 2
2 2
2 2
1 2
2 1
1 1
1 1
1 1
2 2
1 1
1 1
1 2
2 1
2 1
1 1
2 2
1 1
1 2
2 2
1 2
1 2
2 1
1 2
1 2
1 2
1 2
1 2
2 1
2 2
2 2
1 2
1 2
2 2
2 2
1 2
2 1
1 1
1 1
1 1
1 2
2 1
1 1
2 1
1 2
1 2
2 2
1 1
2 1
1 2
2 2
1 2
1 2
2 1
1 2
2 1
1 2
1 1
1 1
1 1
1 1
1 2
1 1
2 2
1 1
2 2
2 1
2 2
1 2
2 1
2 1
1 1
2 2
2 1
1 1
2 2
1 1
2 1
2 2
2 1
1 1
1 2
2 2
1 2
2 2
2 2
1 2
2 2
1 1
2 2
2 1
1 2
2 2
2 1
2 2
2 1
2 1
2 2
2 1
2 1
1 1
1 1
2 1
2 2
1 2
2 1
2 2
1 1
2 2
1 1
1 2
1 1
2 1
2 1
1 2
2 2
1 2
1 2
2 2
2 2
1 2
2 2
2 2
1 1
2 1
2 1
1 1
1 1
2 2
1 1
2 2
1 1
1 2
2 1
1 1
2 1
2 2
1 2
1 2
2 1
1 1
1 2
1 1
1 2
2 2
1 2
2 2
2 1
1 1
1 2
2 1
2 1
2 1
1 1
2 1
2 1
2 1
2 2
1 2
2 1
1 1
2 1
1 1
1 1
2 1
1 1
2 2
2 2
2 2
2 1
2 1
2 1
1 1
1 2
2 1
1 2
1 2
1 2
1 1
1 1
2 2
1 2
1 2
2 1
2 1
1 1
1 1
2 2
2 2
2 1
2 2
2 1
2 1
2 2
2 1
2 2
2 2
1 1
1 1
2 1
2 1
2 1
1 2
1 1
2 1
1 1
1 1
1 2
1 2
2 2
1 1
1 1
2 2
1 1
2 1
1 1
2 2
1 2
1 1
2 1
2 1
2 2
1 2
1 2
1 1
1 2
1 2
2 1
1 2
2 2
2 1
1 1
2 2
2 2
1 1
1 1
1 2
1 2
2 1
2 2
1 2
1 2
2 1
2 2
1 1
2 1
2 1
2 1
1 1
2 1
2 1
2 1
2 2
1 2
1 1
1 1
1 1
2 2
2 2
2 2
2 2
2 2
1 1
2 1
1 2
1 1
1 1
2 1
2 1
1 2
1 2
1 1
1 1
2 2
1 1
2 1
2 2
2 2
1 1
2 1
2 1
1 2
1 2
2 2
2 1
1 2
1 1
2 1
2 1
1 2
1 1
2 2
2 1
2 1
2 2
1 1
1 2
2 2
2 1
2 1
1 2
2 1
1 2
1 2
2 1
2 1
1 1
2 2
2 1
1 2
2 2
2 1
1 2
2 2
2 1
2 2
2 2
2 1
2 1
2 2
1 2
1 1
2 1
1 1
1 2
1 1
1 2
1 2
2 2
1 1
2 1
1 1
2 2
1 1
2 2
1 2
2 1
2 2
2 2
2 2
2 1
1 2
2 2
2 2
1 2
1 2
2 2
1 2
1 1
2 1
1 1
1 2
1 1
2 1
2 1
1 2
1 2
1 1
1 2
1 1
1 2
2 1
2 2
1 2
1 1
2 2
1 1
1 2
2 2
1 1
1 1
1 1
2 2
2 2
1 1
2 2
2 1
1 1
1 2
1 2
1 2
1 1
1 2
1 2
2 1
1 1
1 1
2 1
2 2
1 1
1 1
1 1
2 1
1 2
1 2
2 2
2 2
2 2
1 1
2 2
2 1
1 2
2 1
2 1
2 1
2 2
1 2
1 2
1 1
2 1
2 2
1 1
1 2
2 2
2 1
2 2
1 2
1 2
1 2
1 1
1 1
1 1
2 2
1 1
1 2
2 1
1 2
2 1
2 2
2 2
2 2
1 2
1 2
1 2
1 2
1 1
1 1
1 1
2 2
2 2
2 1
1 1
1 1
1 1
2 1
1 1
1 2
1 1
2 1
1 1
1 2
1 2
1 2
1 2
2 2
1 1
2 2
1 2
1 1
1 1
2 1
1 1
1 1
1 1
1 1
1 1
1 2
2 1
2 1
1 1
2 2
1 1
2 1
2 1
1 2
2 1
2 1
2 2
1 1
2 1
2 1
2 1
1 2
2 2
1 2
1 2
2 1
1 2
1 1
2 2
1 2
2 2
2 2
1 2
1 1
1 2
1 2
1 1
1 1
2 2
2 2
1 1
1 2
1 2
2 2
2 2
1 2
2 1
2 1
2 1
1 1
1 1
2 2
2 2
1 1
1 1
1 1
1 1
2 2
2 1
2 1
2 2
2 2
2 1
2 2
2 2
1 2
1 1
1 2
2 1
2 1
2 1
1 1
1 1
2 1
1 1
2 2
1 2
1 1
1 1
2 2
1 1
1 2
2 2
2 1
1 1
2 1
1 2
2 2
1 2
2 1
1 1
1 1
1 2
2 2
2 1
1 1
2 1
2 1
2 2
1 1
2 1
1 1
2 2
1 2
1 1
2 2
2 2
2 1
1 1
2 2
1 2
1 1
1 1
2 2
2 2
2 1
2 1
1 1
2 2
1 2
2 2
2 2
1 1
2 2
2 2
1 1
2 2
1 2
1 2
1 1
2 1
1 1
2 2
2 2
1 2
2 2
2 2
2 2
2 1
1 1
2 2
2 1
1 2
1 1
1 2
2 2
1 2
1 1
1 2
2 1
1 1
2 1
1 1
1 2
2 2
1 2
2 1
2 1
1 2
1 2
1 1
1 2
1 1
2 1
2 1
1 2
2 2
1 2
2 2
1 2
2 2
1 1
2 1
2 1
2 1
1 1
1 2
2 1
1 2
1 1
1 1
2 2
1 2
1 2
1 2
2 2
1 2
1 2
1 1
2 2
1 2
2 1
1 1
2 2
2 1
2 1
2 2
2 2
2 1
2 1
1 1
2 1
2 2
1 2
1 1
2 1
1 1
2 1
2 2
1 1
1 1
1 1
2 2
2 1
2 2
1 2
1 1
2 1
1 2
2 1
2 2
2 1
1 1
2 1
2 1
1 2
1 2
1 1
2 1
2 1
1 1
1 2
2 2
1 2
2 1
2 1
2 1
1 2
2 1
1 2
2 2
1 1
1 1
2 1
1 2
1 1
1 2
1 2
2 1
2 2
2 2
2 2
2 2
2 2
2 2
2 1
1 1
1 1
2 1
1 2
2 2
2 2
1 2
2 2
2 1
1 2
1 1
2 2
1 1
2 1
1 2
2 1
1 1
2 1
2 2
2 2
2 2
1 1
1 1
2 2
1 2
2 2
1 2
1 1
2 1
1 1
2 1
2 1
2 2
1 2
1 2
1 1
1 2
2 2
2 1
2 2
2 2
1 1
1 1
2 2
1 1
2 1
1 2
2 2
2 2
2 1
2 2
2 1
1 2
1 1
1 1
1 1
2 2
1 2
1 2
2 1
1 1
1 1
1 1
1 1
2 2
2 1
2 1
2 1
2 1
1 1
1 2
2 2
2 2
2 1
1 1
1 2
2 2
2 1
1 1
1 2
2 1
2 2
2 1
1 1
2 1
1 1
1 1
2 2
2 2
1 2
2 2
2 2
1 2
1 2
1 2
1 1
2 2
2 1
1 1
2 1
1 2
1 1
1 1
2 1
2 2
2 2
2 2
2 2
1 1
2 2
1 2
2 1
2 1
1 2
1 2
1 2
1 1
1 2
2 1
2 2
1 2
2 2
1 1
1 1
1 2
1 2
1 1
2 1
2 2
1 2
2 2
2 2
2 1
2 1
2 2
1 2
1 2
2 1
1 2
2 2
1 1
1 1
1 1
1 2
1 2
2 2
1 1
2 2
2 1
2 1
1 1
1 2
1 2
2 2
1 1
1 2
1 1
1 2
1 2
1 2
1 1
1 2
1 1
1 1
2 2
2 1
1 1
2 2
1 2
1 2
2 1
1 1
2 1
1 1
2 1
1 2
1 2
1 2
2 2
2 1
1 2
2 2
2 2
1 2
2 1
1 1
1 1
2 2
2 2
2 2
1 1
2 2
2 1
1 2
1 2
1 1
1 1
2 2
2 1
2 2
2 1
1 1
2 1
1 1
2 1
1 2
2 2
2 2
2 2
1 2
2 1
2 2
2 2
2 2
2 2
1 1
1 1
1 1
2 2
2 1
1 2
2 2
1 1
1 1
1 2
1 2
2 1
2 1
1 2
2 2
2 2
1 1
1 1
2 1
2 1
1 2
2 2
2 1
1 2
2 1
2 1
1 1
2 2
1 2
2 1
1 1
2 2
1 2
2 1
2 2
1 2
2 2
1 2
1 2
2 1
2 2
2 1
2 1
2 2
1 2
1 1
1 2
1 1
2 1
2 2
2 2
2 1
1 1
1 1
2 2
1 1
2 2
2 1
1 1
2 1
2 2
2 1
1 1
1 2
1 1
1 2
1 2
1 2
1 1
1 1
2 1
1 1
1 1
2 1
2 2
2 2
2 2
1 2
2 1
2 1
2 2
2 2
2 1
2 1
2 2
2 2
2 2
1 1
1 1
1 1
2 1
2 2
1 1
1 1
1 1
2 1
1 2
2 1
2 2
2 1
2 1
2 2
1 2
2 1
1 1
1 2
1 2
2 2
2 1
2 2
1 2
2 2
2 2
1 1
2 1
2 2
2 1
1 2
2 1
1 1
1 1
1 1
2 2
2 1
1 2
1 1
2 2
2 2
2 2
1 2
1 2
1 2
1 1
2 1
2 2
2 1
1 2
1 1
2 1
1 1
2 2
1 2
2 1
2 1
1 2
2 1
2 1
2 2
2 2
1 1
1 1
2 2
1 1
1 1
1 1
1 1
1 1
1 2
1 1
2 1
2 1
1 1
1 2
2 1
2 1
1 2
1 2
2 2
1 2
1 2
2 2
1 2
1 1
2 2
2 1
1 1
2 2
2 2
2 1
1 1
2 2
2 1
1 1
1 2
1 1
1 1
2 1
1 2
1 1
1 1
2 2
1 1
2 2
1 1
2 1
1 1
1 1
2 2
2 2
1 1
2 2
1 1
1 1
1 1
2 1
1 2
1 2
1 2
1 2
1 2
2 2
2 2
1 1
1 1
2 2
2 2
2 1
2 2
2 1
2 1
1 2
1 1
2 1
2 2
1 2
1 1
2 1
2 2
1 2
1 1
2 2
2 1
1 2
2 1
1 1
1 2
2 1
1 2
2 1
1 1
2 2
2 2
2 1
1 1
2 1
1 2
2 2
1 2
2 2
2 1
1 2
1 1
2 2
2 1
2 2
1 1
1 2
1 2
1 2
2 1
2 2
2 1
2 2
1 2
1 1
1 1
1 2
1 1
2 1
1 1
1 2
1 1
2 2
2 1
1 2
2 2
2 1
1 2
1 2
1 1
2 1
1 1
1 1
1 2
2 2
2 1
1 2
1 1
1 1
2 2
2 1
1 1
2 1
2 1
1 2
1 1
1 2
1 2
1 1
1 1
2 2
1 1
1 2
1 2
2 2
1 1
2 2
1 1
1 1
2 2
1 2
1 2
2 1
2 2
1 1
1 2
1 1
2 1
1 1
1 2
1 1
2 1
2 1
2 1
1 2
1 1
1 2
2 2
2 1
1 2
1 2
2 2
1 2
1 2
2 1
2 2
2 1
1 1
2 1
1 2
2 1
1 2
2 2
2 1
1 1
1 1
1 2
1 2
2 1
2 2
2 1
1 2
2 1
1 1
1 2
2 2
1 1
1 1
1 1
2 2
2 1
1 1
1 2
1 2
2 1
2 1
1 2
2 2
1 1
2 2
2 1
1 2
1 1
1 1
1 2
2 1
2 2
1 1
2 1
1 2
2 2
2 1
1 2
2 1
1 2
2 1
1 2
1 2
1 1
2 1
1 1
2 2
2 1
1 1
2 2
1 2
1 2
2 2
2 2
1 1
1 1
1 2
2 2
2 1
2 1
1 2
1 2
2 1
1 1
2 1
2 2
2 1
2 2
1 2
2 1
1 1
2 1
2 1
2 1
2 1
1 1
1 1
2 2
2 2
2 1
2 2
2 2
2 2
1 2
1 2
1 1
1 1
1 2
1 2
1 1
2 2
1 1
1 1
1 2
2 2
2 1
2 1
1 1
1 2
2 1
2 1
1 1
2 1
1 2
2 2
2 1
2 2
2 1
1 2
2 1
2 1
1 1
1 2
2 2
2 1
2 1
2 2
2 1
2 2
1 2
1 1
1 2
2 1
2 2
2 1
2 1
1 2
2 2
2 1
1 2
1 1
2 2
2 1
1 1
2 1
1 1
1 1
2 1
1 1
2 2
2 1
1 1
1 1
1 2
1 2
2 2
1 2
1 1
1 2
2 2
2 2
2 1
1 2
2 2
2 2
1 2
2 2
2 2
2 2
1 1
2 1
2 2
1 2
1 2
2 1
1 2
2 2
2 1
2 1
1 2
2 2
2 1
1 1
1 2
2 1
1 1
2 2
1 2
1 1
2 1
1 1
2 1
2 2
2 1
2 1
2 1
1 1
1 1
2 1
2 1
1 2
1 1
2 1
1 2
1 1
1 2
1 2
1 1
1 1
1 2
2 2
2 2
2 2
1 1
2 1
1 2
1 1
2 2
1 2
2 1
2 1
2 2
2 2
2 2
1 2
2 1
2 2
2 1
1 1
2 1
2 1
2 2
2 1
1 1
1 2
2 1
2 1
1 2
2 2
1 1
1 2
1 2
2 2
2 2
2 1
1 2
2 1
1 1
1 2
2 2
1 1
2 1
1 1
1 2
2 2
2 1
2 1
1 1
2 2
2 2
2 1
2 1
1 1
1 2
1 2
2 2
1 1
2 2
2 1
1 2
1 1
1 1
2 2
1 1
2 1
2 1
1 1
1 2
1 2
1 1
1 2
1 2
1 1
1 1
1 1
2 2
2 1
2 1
1 1
2 1
1 2
2 2
2 1
2 2
2 2
2 2
2 2
1 1
2 1
1 1
2 2
2 2
1 1
1 2
2 2
2 1
1 2
2 2
1 2
2 2
1 2
1 1
1 2
2 1
1 2
2 2
1 1
1 2
1 1
2 2
2 1
1 1
1 1
1 2
2 2
2 2
1 1
1 1
1 2
1 1
1 1
1 1
2 1
2 1
1 1
1 2
2 2
2 2
2 2
1 1
2 2
1 1
2 1
2 1
2 1
1 1
1 2
2 2
1 2
2 2
1 2
1 1
2 2
1 1
2 1
2 1
2 2
2 2
2 2
2 1
2 1
2 2
2 1
1 2
1 2
2 1
1 2
1 2
1 2
2 1
2 2
2 2
1 1
2 2
1 2
2 2
1 1
2 1
2 1
2 1
1 1
1 2
2 1
1 1
2 1
2 2
2 2
2 2
1 1
2 1
1 2
2 1
2 2
1 1
2 2
1 1
2 2
1 2
2 1
2 1
2 2
2 1
1 1
2 1
1 2
1 2
1 1
2 2
1 1
1 2
2 1
1 2
2 1
2 1
1 2
2 2
1 2
1 1
2 2
1 1
2 2
1 2
2 1
1 2
1 2
2 1
2 1
2 2
1 1
1 1
1 1
1 2
2 1
1 2
2 2
1 2
2 1
1 2
1 1
2 2
1 2
1 1
2 1
2 1
2 2
1 2
1 1
1 2
2 2
1 2
2 2
1 2
1 2
1 1
2 2
1 2
2 1
2 2
2 2
2 1
1 2
2 2
2 1
1 2
1 1
1 1
1 2
2 2
1 2
1 2
2 1
1 2
2 1
2 1
2 1
2 1
1 1
2 1
2 1
1 2
2 1
1 1
2 2
1 2
2 2
2 1
1 2
1 1
2 1
2 2
1 1
1 1
1 2
1 1
1 1
1 2
2 2
2 2
1 1
1 1
2 1
2 1
1 2
1 1
1 1
1 1
1 1
1 1
2 2
2 2
2 2
2 2
1 1
1 2
1 1
1 2
1 2
1 1
1 2
2 1
1 2
2 1
1 1
1 2
1 1
2 2
1 2
1 2
2 2
2 1
1 2
2 2
1 2
2 2
2 2
2 1
1 2
2 1
2 2
1 2
1 1
2 2
2 1
1 2
1 1
1 1
1 1
2 1
2 1
1 1
2 2
2 2
2 2
2 2
2 1
2 2
1 2
1 2
2 2
1 1
1 2
1 1
1 1
2 1
1 1
2 2
1 2
2 2
1 2
1 2
1 1
1 1
1 2
2 2
2 1
2 2
2 2
2 2
1 1
2 2
2 2
2 1
2 2
1 1
2 1
2 1
1 1
1 2
2 1
2 1
1 2
2 1
1 1
2 1
2 2
2 1
1 2
1 2
1 2
1 2
1 2
1 1
1 1
1 1
1 1
2 1
2 2
2 2
1 1
1 1
1 1
1 2
2 1
1 1
1 2
2 1
1 1
1 2
1 1
1 1
2 1
2 1
1 1
1 2
2 1
2 2
1 2
2 1
1 2
1 2
1 1
1 1
2 2
2 1
2 1
1 1
2 2
2 2
1 1
1 2
2 2
1 2
1 1
1 2
2 1
1 1
1 1
2 2
2 1
1 2
2 1
2 2
2 2
2 1
2 1
2 2
2 2
2 1
1 1
1 2
2 1
1 1
2 1
2 2
2 2
1 2
2 2
1 1
1 1
2 1
1 1
2 2
1 1
1 2
2 1
1 1
2 2
2 2
1 2
1 1
2 2
1 2
1 2
2 1
2 1
1 2
2 1
1 1
2 1
2 2
2 2
1 1
1 2
2 1
1 1
2 1
1 2
2 1
2 1
2 2
2 2
1 2
2 1
2 2
2 1
1 1
1 1
1 1
1 1
1 2
1 1
1 1
1 2
1 2
1 1
1 2
1 1
1 2
1 1
1 2
1 2
2 2
1 2
1 2
1 2
1 1
2 2
2 1
2 1
2 2
2 2
1 2
2 1
2 1
2 2
2 2
2 1
1 1
2 2
1 1
1 2
1 2
1 1
2 2
1 2
1 2
1 2
1 1
1 1
1 1
2 1
2 1
1 2
2 1
2 1
2 1
1 2
1 1
2 2
2 1
2 2
1 2
1 2
2 1
1 2
2 1
1 1
1 2
2 1
1 2
1 1
2 1
2 2
1 1
1 1
2 2
2 1
1 2
2 1
1 2
1 1
2 1
1 1
1 2
2 1
2 2
1 1
2 2
2 2
1 1
1 1
2 2
1 2
2 1
2 2
2 1
2 2
2 1
1 2
1 2
2 1
1 2
1 1
2 1
2 1
1 1
2 1
2 2
1 1
1 2
1 2
2 2
1 1
1 2
2 1
2 1
2 2
1 1
2 2
2 2
2 1
2 2
2 1
1 2
2 2
2 1
2 1
2 1
2 2
1 1
1 1
1 1
1 2
1 1
1 1
1 1
1 1
2 1
1 1
1 2
2 1
2 1
2 2
2 2
2 2
1 1
2 1
1 2
2 1
2 1
1 1
2 2
2 2
1 1
1 2
2 2
2 1
2 1
2 2
1 1
1 1
2 1
2 1
1 1
1 2
1 1
2 2
1 2
2 1
1 1
1 2
1 2
2 2
2 1
2 2
2 1
1 1
1 1
1 2
2 2
1 2
1 2
1 2
2 2
1 2
2 1
1 2
1 2
2 1
1 1
2 1
2 1
1 1
2 1
2 1
2 1
1 1
1 1
1 1
2 1
1 1
2 2
2 2
1 1
1 1
2 2
2 2
2 2
1 2
2 2
2 2
2 1
2 2
1 2
2 1
1 2
2 1
1 2
2 1
1 1
2 1
2 1
2 1
1 1
2 1
1 2
1 2
1 1
2 1
2 1
1 1
2 1
2 2
1 2
1 1
2 2
1 2
2 2
1 2
2 2
1 2
1 2
2 1
2 1
2 2
1 2
2 2
2 1
2 2
2 2
2 1
1 1
2 1
1 1
1 1
2 2
1 1
2 2
2 2
2 2
2 2
2 1
2 2
1 2
1 2
2 1
1 1
1 2
1 1
2 1
2 1
1 1
2 2
2 1
1 1
2 1
1 2
1 1
2 1
1 2
1 2
1 2
1 1
1 1
2 2
2 2
2 1
1 1
1 1
1 2
2 2
2 1
1 1
2 2
2 1
2 2
2 1
2 2
1 2
1 2
2 2
1 2
2 2
1 2
1 2
2 2
2 2
2 2
2 1
1 2
1 1
2 2
1 2
1 2
1 1
1 1
1 2
1 2
1 1
2 2
2 2
1 2
2 2
1 1
1 1
2 2
1 2
1 2
1 2
1 1
1 1
1 2
2 2
2 1
2 2
1 1
1 1
2 2
2 2
2 2
1 1
1 1
2 1
1 2
2 1
2 2
1 2
2 1
2 1
2 1
1 2
1 1
1 1
1 1
1 2
1 2
2 2
1 2
2 2
1 1
2 2
2 1
2 2
1 1
2 1
1 2
1 1
1 1
1 2
1 2
2 1
2 2
1 2
2 1
2 1
2 2
2 2
2 1
2 2
2 1
1 1
2 1
2 2
2 1
2 2
1 2
1 2
1 1
2 2
1 1
2 2
2 1
2 2
1 2
2 1
1 2
1 1
1 2
2 2
1 1
2 1
1 1
1 2
2 2
2 2
1 1
2 1
2 1
2 1
2 1
2 1
1 2
2 2
2 2
2 2
2 2
1 2
2 1
2 1
2 1
2 1
1 1
1 1
1 1
1 1
1 2
1 1
2 1
2 1
1 2
2 2
1 1
2 2
1 1
1 2
2 2
1 2
2 1
1 2
2 1
1 1
2 2
1 2
1 2
1 2
1 1
1 1
1 2
1 2
2 2
2 1
2 1
1 2
1 2
2 2
2 2
2 2
1 1
2 1
2 1
1 2
1 1
2 2
2 1
1 2
1 1
2 2
1 1
1 2
2 1
2 2
1 2
2 1
2 1
1 2
2 1
1 1
2 2
1 2
1 2
1 2
2 2
1 1
1 2
2 1
2 1
2 2
2 2
1 2
2 1
2 1
1 1
2 2
2 1
1 2
1 1
2 2
2 2
1 2
2 1
1 1
2 2
2 2
1 2
1 1
1 2
2 2
2 1
1 2
1 2
2 2
2 1
2 1
1 2
2 2
1 2
2 1
2 1
1 2
1 1
2 1
2 1
1 2
2 1
2 2
1 1
2 2
1 2
2 1
2 1
2 1
1 1
1 2
1 2
2 1
2 2
1 2
1 1
1 2
1 2
1 1
2 1
2 1
1 2
2 1
2 2
2 1
1 2
1 2
2 1
2 2
2 2
2 2
1 2
1 2
2 2
1 2
2 1
2 1
2 1
1 2
2 2
2 1
2 2
1 2
2 1
2 1
2 2
1 1
2 2
1 1
1 1
1 1
1 1
2 2
1 2
1 1
2 2
2 2
2 1
1 1
1 2
2 1
1 1
2 2
2 2
1 1
1 1
1 2
1 1
1 1
2 1
2 1
1 1
1 1
1 2
2 2
2 2
2 2
2 2
2 2
2 1
2 1
1 2
1 1
1 1
1 1
1 2
1 2
2 2
1 1
1 1
1 1
1 2
1 2
2 1
1 2
2 1
1 2
2 2
2 1
1 1
1 1
2 1
2 1
1 2
2 1
2 1
1 1
2 2
2 2
2 2
1 2
2 2
2 2
2 1
2 1
2 2
2 1
2 2
2 1
2 2
1 1
1 2
1 1
1 1
2 2
1 2
1 1
1 1
1 1
2 1
2 1
2 2
2 2
1 2
1 2
1 1
1 2
2 1
2 2
1 2
2 2
1 2
2 2
1 2
1 2
1 1
2 2
2 2
1 1
1 1
1 2
2 1
2 2
2 2
2 1
1 2
2 2
1 1
2 1
2 2
1 1
1 1
2 2
2 1
2 2
2 1
1 2
1 1
1 1
1 2
2 2
2 1
2 2
1 1
1 2
1 1
2 1
1 2
2 2
1 1
1 1
2 1
1 2
2 2
1 1
1 2
2 1
1 1
1 2
2 1
2 1
1 2
2 2
2 2
1 1
1 2
1 1
1 2
2 2
1 2
2 1
1 2
2 1
1 1
2 1
1 1
2 1
1 1
1 2
2 2
1 1
2 2
2 1
2 2
1 1
2 1
1 1
1 2
2 1
1 2
1 1
1 1
2 2
2 1
2 2
2 2
2 1
2 1
2 2
1 2
1 2
1 2
1 1
2 1
1 2
2 2
2 1
2 2
2 1
2 1
2 2
1 2
2 2
2 1
2 2
2 1
2 1
2 2
2 1
1 2
2 1
1 1
2 1
1 2
2 1
1 2
1 2
1 2
1 2
2 1
1 2
2 1
1 2
2 1
1 2
1 2
1 1
1 2
1 2
2 1
1 2
1 2
1 1
1 1
2 1
2 1
1 1
1 2
2 2
1 1
2 1
1 1
1 1
1 2
1 2
2 1
1 1
1 1
1 1
2 2
2 1
2 2
1 2
2 2
2 2
1 1
2 2
2 2
1 1
1 1
1 1
1 2
1 1
1 2
1 1
1 1
2 1
1 1
2 1
1 2
1 1
1 1
2 2
2 2
2 2
1 2
2 2
1 2
1 1
1 2
1 1
2 2
1 1
1 2
1 1
1 2
1 2
2 1
2 2
2 1
2 1
2 2
1 1
2 2
1 1
2 2
2 2
2 1
1 2
2 2
1 1
2 2
1 2
2 2
1 2
2 2
1 1
1 2
1 1
1 2
2 2
2 2
1 1
2 1
2 2
1 2
1 2
2 1
1 2
2 1
2 1
1 2
2 1
1 1
2 2
1 1
1 1
1 1
1 1
1 1
2 2
2 1
1 2
1 2
1 2
2 2
2 1
2 1
2 2
2 1
2 1
1 2
2 2
2 2
2 1
2 2
2 1
2 1
1 1
2 1
1 2
2 1
1 2
2 2
2 1
1 1
1 2
1 1
1 1
2 1
1 2
1 1
2 2
1 1
2 1
2 1
1 2
2 2
1 1
2 2
1 1
1 1
1 1
2 2
2 1
1 2
2 1
2 2
2 1
1 2
2 1
2 1
2 1
2 2
2 1
2 1
1 2
2 2
1 2
2 1
1 2
1 1
1 1
1 2
1 2
2 2
1 1
1 1
1 2
1 2
2 1
2 1
2 2
1 1
1 1
1 1
2 2
2 1
1 1
1 2
1 1
2 2
2 2
1 2
2 2
2 2
1 2
2 1
1 1
1 2
2 1
1 1
2 1
1 1
1 1
2 2
1 1
2 1
1 2
2 1
1 2
1 2
2 2
2 2
2 2
2 2
1 2
2 2
1 2
1 2
1 1
1 2
2 2
2 1
2 2
2 2
2 2
2 1
2 1
1 1
2 2
2 1
2 2
1 1
1 1
2 2
1 2
2 2
2 1
1 1
1 2
2 1
1 1
2 2
1 2
1 1
1 1
1 2
2 1
2 2
1 2
1 1
1 2
2 2
2 1
1 1
1 1
1 2
2 1
2 1
1 1
2 1
1 2
1 1
2 2
1 1
2 2
1 1
1 2
2 1
2 1
2 2
1 2
2 2
1 1
2 1
1 1
2 1
1 2
2 1
2 1
2 2
2 2
1 1
1 2
2 1
1 2
1 1
2 2
1 1
2 2
2 2
2 2
2 1
1 1
1 1
1 2
1 1
2 2
1 1
1 1
1 1
1 1
1 1
2 2
1 1
1 1
2 1
2 2
2 2
2 2
1 2
1 1
2 1
2 1
2 2
2 2
1 2
2 2
2 2
2 2
1 1
2 1
2 1
2 2
1 1
1 1
1 1
1 1
1 1
1 2
1 2
1 1
2 2
1 2
2 1
2 2
1 1
2 2
1 2
2 2
2 1
2 2
2 1
2 1
1 1
1 2
2 1
2 1
2 2
2 1
1 1
2 1
1 1
2 2
1 1
1 1
2 2
1 1
1 1
1 2
1 2
2 2
2 1
1 1
1 1
1 1
2 2
2 2
2 2
2 1
1 1
1 2
2 2
2 2
2 1
1 1
2 1
1 1
1 1
1 1
2 2
1 1
2 2
2 1
1 2
1 2
2 2
2 2
2 1
1 1
2 2
1 1
2 1
1 1
2 2
2 1
1 1
1 2
2 2
1 1
1 1
2 2
2 1
1 1
1 1
1 2
2 2
1 2
1 2
1 2
1 1
1 2
2 1
1 2
2 1
2 1
2 1
1 1
2 1
2 2
2 1
1 1
1 1
1 1
1 1
2 2
2 2
2 2
2 1
1 1
1 2
2 2
2 2
2 1
1 1
1 2
1 1
1 1
1 1
2 1
2 1
2 2
2 1
1 1
2 1
2 1
2 2
1 2
1 1
1 1
1 2
1 2
2 2
1 1
1 1
2 2
2 1
1 1
1 1
1 1
2 2
2 1
2 1
1 2
1 1
1 2
2 1
2 1
2 1
1 2
1 2
2 2
1 2
2 1
2 2
1 1
1 2
2 2
2 2
2 1
2 1
2 2
1 2
2 1
2 1
2 1
1 1
2 2
1 1
1 2
1 2
2 2
1 1
2 2
1 2
1 1
1 2
1 2
2 2
2 1
1 1
1 1
1 2
1 1
2 2
1 2
2 2
1 1
1 2
2 2
2 2
1 2
1 2
2 2
1 1
2 1
2 2
2 1
2 1
2 1
1 2
1 2
1 1
2 1
1 2
1 1
2 2
1 2
2 1
1 1
1 2
1 2
1 2
1 1
1 2
1 2
1 1
1 1
1 2
1 2
2 2
2 1
1 1
2 1
1 1
1 2
1 1
2 1
1 1
1 1
2 1
2 2
2 1
2 2
1 1
1 2
2 2
1 1
1 1
1 2
2 2
1 2
1 2
1 1
2 2
1 2
1 1
1 2
1 1
2 2
1 1
2 1
2 2
1 2
1 2
2 2
1 2
1 1
1 2
2 1
1 1
2 2
2 1
2 1
1 1
1 1
1 2
1 2
1 1
2 2
1 2
2 2
2 2
1 1
2 1
1 2
2 2
2 1
2 1
1 1
2 1
2 2
1 1
1 2
1 1
2 1
2 2
2 2
1 2
1 1
1 2
2 1
2 1
2 1
1 1
2 1
2 1
1 2
1 2
1 1
1 2
2 2
2 2
2 1
1 2
1 2
2 2
2 1
2 2
1 1
1 2
1 1
2 2
2 1
2 1
2 1
1 2
1 1
1 1
2 2
1 1
1 1
1 2
2 1
2 1
2 1
1 1
1 2
1 1
2 1
1 2
1 2
1 1
2 1
1 1
1 2
1 2
2 2
2 2
2 1
1 1
1 1
1 2
2 1
2 2
1 2
2 2
2 1
2 1
1 1
1 2
1 1
2 1
1 1
1 1
1 1
1 2
2 1
1 2
1 1
2 1
1 2
1 1
1 2
2 1
2 2
2 2
2 2
1 1
2 1
1 2
1 1
1 2
1 1
2 2
1 1
1 2
1 1
2 2
2 2
2 2
2 2
2 1
2 2
1 1
2 2
1 1
1 1
1 1
1 2
2 1
1 1
1 2
1 2
1 1
1 1
2 2
2 2
1 2
2 1
1 2
1 1
1 1
2 1
2 1
1 1
1 1
1 2
2 1
1 2
2 2
2 1
2 1
1 2
2 1
1 1
1 1
2 1
1 1
1 2
1 2
2 2
2 2
2 1
2 2
2 2
2 2
1 2
1 2
1 2
2 2
1 2
2 1
1 1
1 2
2 1
2 2
1 1
1 1
2 1
2 1
2 1
2 2
1 1
2 2
2 1
1 2
1 2
1 1
2 1
1 1
1 2
1 2
2 2
2 2
1 1
2 2
2 2
1 2
2 1
1 2
2 1
2 2
2 1
2 1
2 2
2 2
1 2
1 1
1 1
1 2
1 2
2 2
1 1
1 1
1 2
1 1
1 2
1 2
1 2
1 2
2 2
1 1
2 2
1 2
1 1
2 1
2 2
2 1
2 2
1 2
2 2
2 1
2 2
1 1
2 1
1 1
1 1
1 2
1 1
1 2
2 1
1 2
1 1
2 1
1 2
2 1
2 2
1 1
1 2
1 1
1 1
1 1
1 1
2 1
2 1
2 2
2 2
1 2
2 1
1 1
2 1
1 1
1 2
2 2
1 1
1 2
2 2
2 2
2 1
2 2
1 2
1 2
2 2
2 1
2 1
2 1
2 1
2 1
1 2
1 1
1 1
2 1
1 2
1 2
2 1
2 2
2 1
2 1
2 1
2 1
2 2
1 2
1 2
2 1
2 1
2 2
2 1
2 2
1 1
1 1
2 1
1 1
2 1
2 2
2 2
1 1
1 2
2 1
1 1
1 2
1 2
1 2
1 2
2 2
2 2
2 1
1 2
2 2
2 1
2 2
2 1
2 2
2 1
1 1
2 2
2 2
1 1
1 2
1 1
1 1
1 2
2 2
2 2
1 2
1 1
1 2
1 1
1 1
2 2
1 1
2 2
2 2
2 1
1 1
2 2
1 1
1 2
1 2
2 2
2 1
2 1
2 1
1 1
2 1
2 2
2 1
1 1
1 1
1 1
1 1
2 1
2 1
1 2
2 1
1 1
2 1
1 2
2 1
1 2
1 2
1 2
1 2
2 2
1 1
2 2
1 1
2 2
1 2
1 2
1 2
1 1
1 2
2 1
2 1
2 1
1 1
1 2
2 1
2 1
1 2
1 2
1 2
2 1
1 1
2 1
2 2
1 2
2 2
2 2
2 1
1 1
2 2
1 2
2 1
2 2
2 1
1 1
1 1
2 1
2 2
1 2
1 1
1 1
1 1
1 2
2 2
2 1
1 1
2 2
1 1
1 2
2 1
1 1
2 2
1 2
1 2
2 2
2 2
1 2
1 1
1 1
2 2
2 1
2 1
1 2
2 1
2 2
1 1
2 2
1 1
1 2
1 1
1 2
1 1
2 1
2 1
1 1
1 2
1 1
2 1
1 1
2 2
1 2
1 2
1 1
1 1
2 1
1 1
1 1
2 2
2 1
2 1
2 1
2 2
2 1
1 1
1 2
2 2
1 1
2 1
2 2
2 2
2 2
2 1
2 2
2 1
2 2
1 1
2 2
2 1
2 2
1 2
2 1
1 1
2 1
1 2
2 2
1 1
2 2
2 2
1 2
1 2
2 2
1 2
1 1
1 1
1 2
2 2
1 1
1 1
1 1
1 2
2 2
2 2
2 1
1 1
1 1
1 1
2 1
2 1
2 2
2 2
1 1
1 2
2 2
1 1
2 2
2 1
2 2
1 1
2 1
2 2
1 1
1 2
1 1
1 2
2 2
1 2
2 2
2 1
1 1
1 2
1 2
2 1
1 1
2 2
2 2
1 2
2 2
2 2
1 2
2 1
2 1
2 1
1 2
2 2
1 1
2 1
1 2
1 2
2 1
2 2
2 2
1 1
2 1
1 1
1 1
1 2
1 1
2 2
2 2
2 1
2 2
2 1
1 2
1 1
1 2
1 1
1 2
2 2
2 1
1 2
2 1
1 1
2 2
1 1
1 2
2 2
1 2
2 2
1 2
2 1
1 1
1 2
1 1
2 1
1 1
1 1
1 1
1 2
2 1
2 2
2 1
2 2
2 2
2 2
2 1
2 1
2 2
1 2
1 1
1 1
2 1
1 1
2 1
1 2
1 2
2 2
1 2
1 1
1 1
1 1
2 1
1 2
1 2
2 2
2 2
2 1
1 2
1 1
1 1
2 1
2 2
2 1
2 2
2 1
1 1
1 2
2 2
2 2
2 2
1 2
2 2
1 2
1 1
2 1
1 2
2 1
2 1
1 2
2 1
2 2
2 2
2 1
2 1
1 1
2 2
2 2
1 1
1 1
1 1
2 1
1 2
2 1
1 2
1 1
2 1
1 1
1 1
1 1
2 1
2 2
2 1
1 1
2 1
2 1
2 1
1 2
1 1
1 1
2 1
2 1
1 1
1 2
1 1
1 2
2 2
1 1
2 2
1 1
1 1
1 2
1 1
1 1
2 1
1 2
1 1
1 2
2 1
1 1
2 1
2 1
1 2
2 1
2 1
1 1
1 1
2 2
1 2
1 2
1 1
2 2
1 1
1 1
1 1
2 1
1 1
1 1
2 2
1 1
1 2
2 2
1 2
1 1
2 1
2 1
2 1
1 1
2 1
2 1
1 1
1 1
1 1
1 2
2 1
1 2
1 1
2 1
1 2
1 2
1 2
2 2
1 1
1 2
2 1
2 1
2 1
1 1
2 2
1 1
2 2
2 1
1 2
1 2
2 1
2 1
2 2
2 1
2 1
1 2
1 1
1 1
2 1
1 1
1 1
2 2
2 2
2 2
2 2
1 1
1 2
2 2
2 1
1 2
2 2
1 1
2 1
1 2
1 1
2 2
2 2
1 1
1 1
1 2
2 2
2 1
1 1
1 2
2 2
2 1
1 1
2 1
1 2
1 2
2 2
1 1
2 2
1 1
1 1
1 2
1 1
1 2
2 2
1 2
1 1
1 1
1 1
1 1
1 2
2 2
1 1
2 1
1 2
2 2
2 1
2 2
2 1
2 2
2 1
1 2
1 1
2 1
1 2
2 1
1 2
1 1
2 1
2 1
1 1
1 1
1 2
1 2
1 1
2 1
2 1
1 1
1 2
1 1
1 2
1 1
1 2
1 2
1 1
2 2
1 2
1 2
2 1
2 2
1 2
1 1
1 2
2 2
2 1
2 1
1 1
1 1
2 2
2 1
1 1
2 2
2 1
1 2
1 1
1 1
2 1
2 2
2 2
1 1
2 2
2 2
2 2
1 1
2 2
1 1
2 1
1 2
2 2
1 1
2 1
1 1
1 1
1 1
1 1
2 1
2 2
2 2
1 1
2 1
1 1
2 1
2 1
1 2
2 1
1 2
2 1
1 2
2 1
1 2
1 2
1 1
1 2
1 2
2 1
2 1
1 2
1 1
2 1
2 2
1 1
1 1
1 1
2 1
2 1
1 1
1 1
2 1
1 1
1 2
2 2
2 1
1 1
1 2
1 1
2 1
2 2
1 1
1 2
2 2
1 1
2 2
2 2
1 1
2 2
2 1
2 1
2 1
2 2
2 1
1 2
1 1
2 1
1 2
2 2
1 1
1 2
1 1
1 1
1 2
1 2
1 2
2 1
2 1
1 1
2 2
2 2
2 2
1 2
2 1
1 1
2 2
1 2
1 1
1 1
1 1
1 2
1 2
2 1
1 2
1 2
2 1
2 1
2 2
2 1
2 2
2 1
2 2
2 2
2 2
2 1
2 2
1 2
2 2
1 1
1 1
1 2
1 1
2 1
1 2
2 1
1 1
2 2
1 1
1 2
2 1
1 2
2 1
1 1
1 1
1 1
2 1
2 1
2 1
1 1
2 1
1 2
1 2
2 1
2 2
1 1
1 2
2 1
2 2
1 1
2 1
2 2
2 2
1 1
2 1
2 2
2 2
1 1
1 1
2 2
1 1
1 1
1 2
2 1
1 2
2 1
2 2
1 1
1 2
2 1
1 1
2 1
2 1
1 2
1 2
1 2
1 1
2 2
1 1
2 2
1 1
1 2
1 1
2 1
1 2
2 1
1 1
1 2
2 2
1 1
2 1
1 1
1 2
2 2
2 2
2 1
2 1
2 2
2 2
2 1
1 1
2 1
1 2
2 2
2 2
2 1
2 1
1 2
1 2
1 2
1 1
2 1
1 1
1 2
2 1
2 1
2 1
1 1
2 1
1 2
1 1
1 1
1 2
2 1
1 1
2 2
2 2
1 1
2 2
1 1
2 1
1 1
2 2
2 2
2 2
1 2
1 1
2 1
2 2
2 2
1 1
2 2
2 1
2 2
2 1
2 2
1 1
1 1
2 1
1 2
1 2
2 2
2 1
2 2
2 2
1 2
1 2
2 2
1 2
2 1
2 1
1 2
2 2
1 2
2 2
2 1
1 1
1 1
2 2
2 2
2 1
2 2
1 2
2 1
2 2
2 2
2 1
1 2
1 2
2 2
2 2
1 2
1 2
2 1
1 1
1 2
1 1
2 2
2 1
1 1
1 1
2 1
2 1
2 1
1 2
2 1
2 2
1 2
2 1
2 1
1 1
1 2
1 2
1 1
1 2
2 1
1 1
1 2
1 2
1 1
2 1
2 2
2 1
2 2
1 2
2 2
2 1
2 2
1 1
2 1
2 1
1 2
2 2
1 1
2 2
1 2
2 1
1 1
2 2
2 1
2 1
2 1
2 2
2 2
2 2
1 2
2 1
2 1
2 1
2 2
1 2
2 1
2 1
2 1
1 2
1 2
2 1
2 1
2 1
1 1
1 2
2 1
2 2
2 1
2 1
1 1
2 1
2 1
1 1
2 1
1 2
1 1
2 2
2 2
1 2
2 2
1 1
1 2
1 1
1 2
1 2
1 1
1 1
1 1
1 1
1 1
2 1
2 1
2 1
1 1
2 2
2 1
1 2
1 2
1 2
1 2
1 2
2 1
1 1
2 1
2 2
2 1
1 2
2 1
2 1
2 2
1 2
1 1
1 2
2 2
1 2
2 2
1 1
2 1
1 2
2 1
2 1
1 2
1 2
1 1
1 1
2 1
1 2
2 1
1 2
1 2
2 2
2 1
1 2
2 1
1 2
1 1
1 2
1 2
1 2
1 1
2 2
2 2
2 2
2 2
1 1
2 1
2 1
2 2
2 1
1 2
2 1
2 2
2 2
2 1
1 2
1 2
2 1
2 1
2 1
1 1
2 1
2 2
2 2
2 2
1 2
1 2
1 2
2 2
1 2
1 2
1 1
2 2
2 2
2 2
2 1
2 1
1 2
2 1
2 2
1 2
1 2
1 2
1 1
2 2
2 2
2 2
1 1
2 2
1 2
1 1
1 1
2 1
1 1
1 2
2 1
1 1
1 2
1 1
2 2
1 2
1 1
2 2
1 2
2 1
2 1
1 1
1 2
2 2
1 1
2 1
1 2
2 2
1 1
1 2
1 1
1 1
1 2
1 1
1 2
2 2
1 2
1 2
2 2
1 1
2 1
2 1
2 1
1 1
1 2
1 2
2 1
1 1
1 2
2 1
1 2
2 2
2 2
1 1
1 1
1 1
2 2
2 1
1 1
1 1
1 2
1 2
2 1
1 1
2 2
2 2
2 2
2 2
1 2
2 1
2 1
2 2
2 2
1 2
1 2
2 2
1 2
2 2
2 1
2 2
2 2
2 2
2 1
2 2
2 1
2 1
1 1
1 2
1 2
2 1
2 2
2 2
2 2
2 2
1 1
2 1
1 2
1 2
2 2
1 1
2 2
1 2
1 1
1 1
1 1
2 1
1 1
2 1
2 2
2 1
2 1
1 1
1 1
1 2
1 2
1 1
1 1
1 1
1 1
1 1
1 1
1 2
1 2
1 1
1 2
1 2
1 1
1 1
2 1
2 2
1 1
2 1
1 1
2 2
2 1
1 1
2 1
1 2
1 2
2 1
2 2
2 1
1 2
1 2
1 2
2 1
2 1
2 2
2 2
2 2
1 2
2 1
2 1
2 1
2 1
2 1
1 2
2 1
2 2
1 1
1 2
1 2
1 1
1 2
2 2
1 2
1 1
1 1
1 1
1 1
2 1
1 2
2 1
1 1
2 2
2 1
1 1
1 1
2 2
2 2
1 1
2 1
1 1
1 2
2 2
2 1
1 1
1 1
2 2
1 1
1 1
2 2
2 2
2 1
2 2
2 1
2 2
1 2
1 2
2 2
1 2
2 2
2 1
1 2
1 2
1 1
2 2
1 1
2 2
1 1
2 1
2 2
1 1
1 1
1 1
2 2
2 2
2 2
1 2
1 2
2 2
1 1
2 1
2 2
2 1
1 1
1 1
1 1
2 1
1 1
1 1
2 2
1 2
2 1
2 2
2 1
1 1
2 2
2 1
2 2
2 2
1 1
1 1
2 2
2 1
1 1
2 2
2 1
2 1
1 1
2 2
1 2
1 2
1 1
2 2
2 2
1 2
1 2
2 1
2 2
1 1
1 2
2 2
2 2
1 2
2 2
2 2
2 1
2 2
2 2
2 2
1 1
2 2
2 2
1 2
1 2
1 2
2 1
1 1
1 2
1 1
1 2
1 2
1 2
1 2
2 2
1 1
1 2
2 1
1 2
1 2
1 2
2 2
1 1
1 2
1 1
1 2
1 1
2 1
2 2
2 2
2 1
1 1
2 2
2 1
1 1
1 1
2 1
1 1
2 1
1 2
1 2
1 1
2 2
1 1
1 2
1 2
1 2
1 2
2 2
1 2
1 2
2 2
2 1
2 1
2 1
1 2
2 1
2 1
2 2
1 1
2 1
2 1
2 2
2 2
2 1
1 2
1 1
2 1
1 2
1 1
1 2
2 2
2 1
1 1
1 1
2 2
2 2
2 2
2 2
1 1
1 1
2 1
1 2
2 2
2 2
2 2
2 2
1 2
2 2
1 1
2 1
1 2
2 1
1 1
1 2
2 2
2 1
2 2
1 1
1 1
1 2
1 2
1 2
1 2
2 2
1 1
1 1
1 2
1 1
1 1
1 1
1 2
2 1
1 1
2 2
2 1
1 2
1 2
2 2
1 1
2 1
2 2
2 1
1 2
1 1
1 2
2 1
2 2
2 1
1 1
1 2
1 2
1 2
1 1
2 1
1 1
2 1
2 2
1 2
1 1
2 1
1 2
2 2
2 2
1 1
2 1
2 1
1 1
2 1
2 2
1 1
1 1
2 1
1 1
1 2
2 1
1 1
1 1
1 1
1 1
2 2
1 2
2 1
2 2
1 1
1 2
2 1
2 1
1 2
2 2
1 2
1 2
2 2
1 1
1 1
1 1
1 2
1 2
1 1
1 2
1 2
1 1
1 2
1 2
1 1
2 1
1 1
2 2
1 2
2 1
2 2
2 1
2 2
1 2
2 1
1 2
2 2
1 2
1 2
2 2
2 1
2 1
2 1
1 2
2 2
2 2
2 1
2 2
2 2
2 2
1 1
1 2
1 2
1 1
2 1
2 2
2 1
1 2
1 2
1 1
1 2
2 1
1 2
2 1
2 1
1 2
1 1
1 1
2 1
1 2
2 2
2 2
1 2
1 2
1 2
1 2
2 1
2 2
1 2
2 1
2 1
2 1
1 2
2 2
1 1
1 1
2 1
2 1
2 1
2 1
2 2
2 2
2 1
1 2
2 1
1 2
2 2
2 2
2 2
1 1
1 1
2 1
2 1
1 2
1 1
1 2
1 2
1 1
2 2
1 1
1 1
2 2
2 2
2 2
2 1
2 1
1 2
1 1
1 2
1 1
1 2
1 1
1 2
2 1
2 2
2 1
1 2
2 1
2 1
2 1
2 2
1 1
2 2
1 2
1 2
1 2
2 1
1 2
2 1
1 1
1 1
2 1
1 1
1 2
2 2
2 2
2 2
2 1
1 1
1 1
1 2
1 2
1 1
1 2
2 2
2 1
1 2
1 1
1 1
1 1
2 2
2 1
1 1
2 1
1 2
2 1
2 1
1 2
1 1
1 2
2 2
2 2
2 2
1 1
1 2
2 2
2 1
1 2
1 2
1 1
2 1
2 2
1 2
1 1
1 1
2 2
1 1
1 2
2 1
2 2
1 2
1 1
1 1
2 1
2 2
2 1
1 2
2 1
1 2
1 1
2 1
1 1
1 1
1 1
2 2
2 1
1 1
1 2
1 1
1 1
2 2
1 2
1 1
1 1
1 2
2 2
2 1
2 1
1 2
2 1
1 1
1 1
1 2
2 2
1 2
1 1
2 2
1 1
1 1
1 1
1 1
1 2
2 1
2 1
1 1
1 2
2 2
2 2
2 1
1 2
1 1
1 2
2 1
2 2
1 2
2 1
1 1
1 2
2 2
2 2
1 1
2 1
2 1
1 1
1 1
1 2
1 1
1 1
2 2
1 1
1 1
1 2
2 1
1 2
2 2
2 1
1 2
1 2
2 1
2 1
2 2
2 1
2 2
1 2
1 1
1 2
2 2
1 2
2 2
1 2
2 2
2 2
1 2
2 2
1 1
2 1
1 1
2 2
1 1
1 2
1 1
1 1
2 1
1 2
1 1
2 2
2 2
1 1
1 2
2 1
1 2
2 2
2 2
1 2
1 2
1 2
1 1
1 1
1 2
1 2
1 2
2 1
1 1
2 2
2 2
2 2
2 1
2 2
2 2
2 1
2 2
2 1
2 2
1 1
1 2
1 2
1 2
1 1
2 2
1 2
2 2
1 1
1 1
2 1
1 2
1 2
2 1
1 2
2 1
1 1
1 2
1 2
2 2
2 1
2 2
2 1
2 2
2 1
2 1
2 2
2 2
2 1
1 2
1 2
1 2
2 2
1 1
2 2
2 1
1 2
1 2
2 2
1 1
2 1
2 1
2 1
1 1
2 1
2 1
1 1
2 2
2 2
2 2
2 1
2 2
1 2
1 2
1 1
1 2
2 2
1 1
1 1
1 2
2 1
2 2
1 1
2 2
2 2
1 1
1 2
2 1
1 1
1 2
2 2
2 1
2 2
2 2
2 1
1 2
2 2
2 2
1 2
1 2
1 2
2 1
1 2
1 1
2 1
2 2
1 2
1 2
2 2
1 1
1 1
1 2
1 1
2 1
1 2
2 2
2 2
2 2
2 1
1 2
1 2
2 2
2 2
2 1
1 1
1 1
1 1
2 1
2 1
2 1
2 2
2 1
2 2
2 2
1 1
1 1
1 2
1 1
2 2
1 1
1 1
1 2
2 1
2 1
1 1
1 1
1 2
1 1
1 1
2 1
1 1
2 1
2 2
2 1
2 1
1 1
1 1
1 2
2 1
1 1
1 2
1 1
1 1
2 2
1 2
1 1
2 2
2 2
1 2
1 1
2 2
2 1
2 2
2 2
1 1
2 1
1 1
1 2
1 1
1 1
2 1
1 2
1 1
2 1
2 1
2 2
2 2
2 1
2 2
2 1
1 1
2 1
1 2
1 1
2 1
2 2
1 2
1 1
1 1
2 2
1 2
2 1
1 1
1 1
2 1
1 2
2 1
1 1
1 1
1 2
1 2
1 2
1 1
2 1
1 2
2 2
2 1
2 2
1 2
2 2
1 1
2 1
1 2
2 2
2 2
1 2
1 1
2 2
2 1
1 2
1 1
1 1
2 2
2 1
1 2
1 1
2 2
1 1
2 2
2 2
2 1
2 1
2 2
1 1
2 1
2 1
1 2
2 2
2 2
1 2
1 1
1 1
1 1
1 2
2 2
2 2
2 1
2 2
1 2
1 1
2 1
2 1
2 1
1 1
2 2
1 1
2 2
1 2
1 2
1 1
1 1
2 2
1 2
1 2
2 2
2 1
1 1
2 2
2 1
2 2
2 2
2 2
2 2
1 2
1 2
2 2
2 1
2 2
1 1
1 2
1 2
2 1
2 1
1 1
1 2
2 1
1 1
2 2
2 1
2 2
1 2
1 2
1 2
2 2
1 2
2 1
2 1
2 2
2 2
1 2
1 2
2 1
2 2
2 1
1 2
2 1
1 1
2 2
1 1
1 2
1 2
2 1
2 2
2 1
1 1
1 1
2 2
1 2
2 2
1 1
2 2
2 1
1 2
1 2
2 2
2 1
2 2
1 1
2 2
2 2
1 1
2 1
1 1
2 2
1 1
2 1
2 2
2 2
1 1
2 1
1 2
1 1
2 1
2 2
2 1
2 1
2 2
1 2
1 1
1 1
2 2
1 2
2 2
2 2
1 2
2 2
2 1
2 2
2 2
2 1
1 1
1 1
1 2
1 2
1 2
2 1
2 1
1 1
1 1
2 2
2 1
2 2
1 1
2 2
1 1
2 1
2 1
2 2
1 2
1 1
2 1
2 2
2 2
1 1
2 2
2 2
1 2
2 2
1 1
2 1
2 2
1 2
2 2
1 2
1 1
1 2
1 1
2 1
1 2
1 1
2 1
2 2
2 2
1 2
2 2
2 2
2 2
2 2
1 2
1 2
1 2
2 1
2 1
1 2
2 1
2 1
1 2
1 1
1 1
2 1
1 1
2 1
1 1
2 1
2 2
2 1
1 1
1 1
1 1
2 1
2 2
2 1
1 1
2 2
2 2
1 2
1 2
1 1
1 2
2 2
1 1
1 2
2 1
2 2
1 1
1 2
1 1
2 1
2 1
2 2
2 1
2 1
2 2
2 2
1 2
2 2
2 2
1 2
1 1
1 1
1 2
1 2
1 2
1 1
2 1
1 1
2 1
2 1
1 2
2 2
2 1
2 2
1 1
2 2
2 2
1 1
1 2
2 2
2 2
2 2
1 2
2 1
1 1
2 2
2 1
1 2
2 2
2 1
2 1
2 1
2 1
2 2
1 2
1 2
2 2
2 2
2 2
1 2
1 2
2 2
1 2
1 1
2 2
2 1
2 1
1 1
1 1
2 1
1 2
2 1
2 1
2 2
2 1
2 2
2 1
1 1
1 1
1 1
1 1
1 2
1 2
2 1
1 1
2 1
2 2
2 2
1 2
2 2
2 2
1 1
1 2
2 2
1 2
1 2
2 1
2 1
2 2
2 2
1 1
2 2
1 2
2 2
1 2
1 1
2 1
2 2
1 2
1 2
1 1
2 2
2 1
2 1
2 2
1 1
1 1
2 1
2 1
1 1
1 1
2 2
2 2
1 2
2 1
1 2
2 1
2 1
1 2
1 1
1 2
1 1
1 2
1 2
1 2
1 1
2 2
1 2
2 1
2 2
1 1
1 1
2 2
2 2
2 2
2 1
1 2
2 1
1 1
2 1
1 1
1 1
2 1
1 2
2 1
2 1
2 1
1 1
2 1
1 1
1 1
1 1
2 1
2 1
1 1
2 1
2 1
1 1
1 1
1 2
1 1
2 2
1 2
2 1
2 1
2 2
2 1
1 1
1 1
1 1
1 1
2 2
1 1
2 2
1 2
2 2
2 1
2 2
1 1
2 2
1 2
2 2
1 1
1 1
2 1
2 2
2 2
1 2
1 1
2 1
2 2
2 2
2 1
1 2
2 1
2 2
2 1
1 1
2 2
2 1
2 2
2 2
1 1
2 2
1 1
2 2
1 2
2 2
2 2
1 2
1 1
2 2
1 1
2 2
1 1
1 2
1 1
1 1
1 2
2 1
2 2
1 1
2 2
2 2
2 2
2 2
2 1
2 2
1 2
1 1
1 2
2 1
2 1
2 1
2 1
2 1
2 2
1 2
1 2
2 1
1 1
2 1
1 2
2 1
1 2
2 2
2 2
1 2
2 1
2 1
1 2
2 2
2 2
1 2
1 1
2 1
2 1
2 1
2 1
2 2
2 1
2 2
2 1
1 1
1 2
1 1
1 1
1 2
1 1
1 2
1 2
1 1
2 1
1 1
1 1
2 2
2 2
1 1
2 1
1 2
1 1
1 1
1 1
1 1
1 2
1 1
2 2
1 1
1 2
1 2
2 2
2 2
2 2
1 2
1 1
1 1
2 1
2 2
2 1
1 2
1 1
2 2
2 1
2 1
1 1
1 1
1 1
2 2
2 1
1 2
2 1
1 2
1 1
1 1
1 1
1 2
1 1
2 2
1 1
1 1
1 1
1 1
1 1
1 2
2 1
2 2
2 1
2 1
1 2
2 1
1 2
2 2
1 1
1 2
1 2
2 1
2 2
2 1
2 2
2 1
2 2
2 1
1 1
1 2
2 1
1 1
1 2
2 2
1 1
1 2
2 1
1 1
2 2
2 2
2 2
2 2
2 2
2 1
1 1
2 2
1 2
2 1
1 2
2 1
2 1
1 1
1 2
1 1
2 2
1 2
2 1
2 2
2 2
1 1
1 2
1 1
2 2
2 1
2 2
1 1
2 2
2 2
2 2
2 2
1 2
1 1
1 2
2 1
1 2
1 2
2 2
2 2
1 2
1 1
1 1
2 2
2 1
1 1
1 2
1 1
1 1
1 2
1 1
2 1
2 1
2 2
1 1
2 2
1 2
1 1
1 1
2 1
2 2
2 1
1 2
2 1
1 1
2 1
1 1
1 1
2 2
1 1
1 1
2 1
1 1
1 2
1 1
2 1
2 2
1 1
1 1
1 1
2 1
1 2
1 1
2 1
2 1
1 2
2 1
2 1
1 1
1 2
2 1
2 1
2 1
1 1
1 1
2 2
2 1
1 2
2 2
2 1
2 1
1 2
1 2
2 2
1 2
2 2
2 1
2 2
2 1
2 2
1 2
2 1
2 1
2 2
1 2
2 1
2 2
1 2
2 2
2 1
1 2
2 1
1 1
2 2
2 1
1 1
2 1
1 1
1 2
2 2
2 2
1 2
1 2
2 1
2 1
2 1
2 2
1 1
2 1
1 2
1 1
1 2
1 1
2 2
2 2
2 1
2 2
1 2
1 1
2 1
1 1
1 1
1 2
2 1
1 2
1 1
1 2
1 1
1 2
2 2
1 1
1 1
1 2
1 2
1 1
2 1
2 1
2 2
1 2
1 2
1 1
2 2
1 1
2 2
2 2
1 2
2 2
2 1
1 2
1 1
1 2
1 2
2 2
2 2
2 2
1 2
2 1
2 2
1 2
1 2
1 1
1 2
1 2
1 2
1 1
2 2
1 1
2 2
1 2
1 1
2 2
2 2
1 2
2 1
1 1
1 1
2 1
2 1
1 1
2 2
1 1
2 1
1 1
2 1
1 2
2 2
1 1
1 1
2 2
1 2
1 1
1 2
2 2
1 2
1 2
1 1
1 2
2 1
1 2
1 2
1 2
2 2
2 1
2 1
1 1
1 2
2 2
2 2
2 1
2 1
2 2
1 1
2 1
1 1
2 2
1 2
2 2
2 2
2 1
1 1
2 2
2 1
2 2
1 2
2 1
2 1
2 1
1 1
1 1
2 2
2 2
1 1
2 2
2 1
1 2
2 1
2 2
1 2
2 1
2 1
1 1
2 1
2 1
1 1
2 2
2 2
1 1
1 2
2 2
1 1
1 2
1 1
2 1
1 2
1 1
1 1
2 1
2 1
1 1
1 2
1 1
2 1
2 1
2 2
2 1
2 2
2 2
2 1
1 1
1 1
1 2
1 2
1 1
1 1
2 1
2 1
1 1
1 1
2 2
2 2
1 1
1 2
2 1
2 2
2 2
2 2
1 1
2 2
2 1
1 1
1 2
1 1
2 2
1 1
1 2
1 2
2 2
1 2
1 1
2 1
1 2
2 1
2 2
1 1
1 1
2 1
2 2
1 1
1 1
1 1
1 2
2 1
1 2
2 1
1 1
1 2
2 2
1 2
2 2
2 2
2 1
1 2
1 2
2 1
1 2
1 2
1 2
1 1
2 2
1 2
2 1
2 2
1 2
1 2
1 2
1 1
2 2
1 2
2 1
2 1
1 1
1 2
2 2
2 2
2 1
2 2
2 1
2 2
1 1
2 1
1 1
1 2
1 2
2 2
1 1
2 1
1 1
1 2
1 2
2 2
2 1
2 2
2 1
1 2
1 1
1 1
2 1
2 2
1 2
2 2
2 1
2 2
1 2
1 2
1 2
1 2
1 1
2 1
1 2
1 1
2 2
2 1
2 2
1 1
1 1
1 2
1 1
2 2
1 2
1 2
2 1
2 2
2 1
1 2
1 1
1 2
2 1
2 1
1 1
1 2
2 1
1 2
2 2
2 2
1 1
2 1
2 2
2 2
1 1
2 2
1 2
2 1
2 1
2 1
1 1
1 2
1 2
1 2
1 2
2 1
2 2
2 1
2 1
1 2
2 1
2 1
1 2
2 2
1 1
1 2
1 2
1 2
2 1
2 2
2 2
1 2
1 2
2 1
2 1
1 1
1 1
1 2
1 1
2 2
2 1
1 1
2 1
1 2
2 1
1 1
2 1
2 1
1 2
1 2
1 1
1 1
2 1
1 1
2 2
1 2
2 1
1 1
2 2
1 2
2 2
2 2
2 1
1 2
1 1
2 2
1 2
2 2
2 2
2 2
1 1
1 1
1 1
2 2
2 2
1 2
1 1
1 2
1 1
1 1
1 1
1 1
1 2
1 2
2 2
1 1
1 1
1 2
2 1
2 1
2 2
2 1
1 1
2 1
1 2
2 1
1 1
2 2
1 2
1 1
1 2
2 2
1 2
2 2
1 2
1 1
1 1
2 1
1 2
1 1
2 2
1 2
1 1
1 1
1 1
1 2
2 2
2 1
2 1
2 2
2 1
2 2
1 1
1 2
1 2
1 1
2 1
2 2
1 1
2 1
1 1
2 1
2 1
1 2
1 1
2 1
1 1
2 2
1 1
1 1
2 1
1 2
1 2
1 1
1 2
2 2
1 1
2 2
1 2
2 2
1 2
1 2
1 1
2 1
2 1
1 1
2 2
1 1
2 2
2 2
2 2
1 2
2 1
1 1
2 1
2 2
2 1
2 1
2 1
1 2
1 2
2 2
2 1
2 1
1 1
1 1
2 1
1 2
2 2
2 1
2 2
1 1
1 2
2 1
1 2
1 2
2 2
2 1
2 2
1 1
2 1
1 1
1 1
1 1
1 1
2 2
2 2
1 1
1 2
2 1
1 1
1 1
2 1
1 1
2 2
2 2
1 1
1 1
1 1
1 1
2 1
2 2
2 1
1 1
1 1
2 1
1 1
1 1
1 1
2 1
1 1
2 2
1 1
2 2
1 2
2 1
1 1
2 1
1 2
2 2
1 1
2 2
1 2
2 2
2 2
2 2
2 2
1 1
1 2
2 1
2 1
2 1
2 1
2 2
1 2
1 2
1 1
2 2
1 2
2 1
1 2
2 2
2 2
2 2
1 1
1 1
1 1
2 2
1 1
1 1
1 2
1 1
1 2
2 2
1 2
1 2
1 2
1 2
2 2
2 1
1 2
2 2
1 1
1 2
1 2
2 2
2 2
2 2
2 2
2 2
2 2
2 1
1 2
1 2
1 1
2 1
2 1
1 2
2 1
2 2
1 2
2 2
1 1
1 1
1 2
2 2
2 1
1 1
1 2
2 1
2 1
1 2
2 1
2 2
2 1
1 2
1 1
2 1
1 1
2 2
1 2
1 1
1 1
2 1
2 2
1 2
2 1
1 2
2 1
1 2
1 1
1 2
2 2
1 1
2 1
2 1
2 1
1 2
1 2
1 1
1 2
2 2
2 1
1 2
1 2
2 1
1 1
2 2
1 2
2 1
1 1
2 1
1 1
1 2
2 1
2 2
2 1
1 1
2 2
1 1
1 2
1 2
2 1
2 1
1 1
1 1
2 1
2 2
2 2
1 2
1 1
2 2
2 1
1 1
1 1
2 1
2 2
1 2
2 1
2 2
1 2
1 2
2 1
2 1
1 2
1 2
1 1
2 1
2 2
2 2
1 1
1 2
2 2
2 2
2 1
1 2
1 1
2 2
1 2
1 1
1 1
2 1
2 1
2 1
1 2
1 1
1 1
2 2
2 1
2 2
1 2
2 2
1 1
1 2
2 2
2 1
1 1
2 2
2 1
2 2
2 2
2 1
1 1
2 1
2 2
1 1
1 1
2 2
1 1
1 1
2 2
1 1
2 1
2 2
1 2
1 2
1 1
1 2
1 1
1 1
1 2
2 1
2 1
1 1
2 1
1 1
2 1
2 2
1 2
1 1
2 2
2 2
1 2
2 1
1 1
1 2
1 2
1 1
1 1
2 1
2 1
1 2
1 2
1 2
1 2
1 2
1 1
1 1
1 1
2 2
2 2
2 2
2 2
2 2
2 1
1 1
2 1
1 2
1 1
2 2
1 2
2 1
2 2
2 1
1 1
2 1
2 2
2 1
2 1
2 2
2 1
2 1
2 1
2 2
2 2
2 1
2 2
1 1
1 1
2 2
1 2
1 1
1 1
1 1
1 1
1 2
2 1
2 2
1 2
1 2
1 2
2 2
2 2
2 2
2 2
2 2
1 2
1 1
1 2
1 2
2 2
1 2
1 2
2 1
1 1
1 2
1 1
1 2
2 1
2 1
2 2
2 2
2 2
1 1
1 2
2 1
2 2
2 2
2 2
2 1
1 1
1 1
2 2
1 2
2 1
2 1
2 2
1 1
1 1
1 2
1 2
2 2
1 2
2 1
2 1
2 2
2 1
1 2
1 2
1 2
1 2
1 2
1 1
1 2
2 1
2 1
2 2
1 2
1 1
2 1
1 1
1 1
2 2
1 1
1 2
1 1
1 2
1 1
2 1
1 1
2 1
1 2
1 1
1 2
1 2
2 1
2 1
1 1
1 2
1 1
1 1
1 1
1 2
2 2
1 2
2 1
2 2
1 1
2 2
1 2
2 1
1 2
1 1
1 2
1 1
2 1
2 1
1 2
2 2
1 1
2 1
2 1
1 1
2 2
2 2
2 1
2 1
2 1
1 2
1 1
1 1
1 1
1 2
1 1
1 2
1 2
2 2
1 1
1 2
1 2
2 1
1 2
2 2
2 1
1 1
1 1
2 1
2 2
2 1
2 2
2 2
2 1
2 1
1 2
2 1
2 2
2 2
2 1
1 1
1 1
1 2
1 1
1 1
1 2
2 1
2 2
2 2
2 2
2 2
2 1
1 2
1 2
2 1
1 2
2 1
2 2
1 2
1 2
1 1
1 1
1 1
2 2
1 2
2 1
1 2
1 1
2 2
1 1
2 2
1 2
1 2
1 1
1 1
2 2
1 2
2 2
1 2
1 1
1 2
1 2
1 1
2 2
2 2
1 2
1 1
2 2
1 2
1 1
1 1
2 1
1 2
1 1
1 1
2 2
1 2
1 2
2 2
1 2
2 2
2 2
2 1
2 1
1 1
1 2
2 2
1 2
2 2
1 1
2 2
2 1
2 1
2 2
1 2
1 1
1 2
2 2
1 1
2 1
2 2
1 1
2 1
2 2
1 2
2 1
2 2
2 1
2 1
2 2
1 2
1 2
2 2
1 2
2 1
2 1
2 2
1 2
1 2
1 2
1 1
1 2
1 1
1 1
2 2
2 2
1 1
2 2
1 1
2 2
1 2
2 2
2 1
2 1
1 1
1 2
1 1
2 2
1 2
2 2
1 2
2 2
2 2
1 2
1 2
1 1
1 1
2 1
2 1
1 1
2 2
1 2
2 2
2 1
2 2
1 2
2 2
1 2
2 2
2 2
1 1
2 1
1 2
2 2
2 1
1 1
2 1
1 2
2 2
1 2
1 1
1 2
1 1
1 2
1 2
2 2
1 1
1 2
2 1
1 2
1 1
1 2
1 2
2 1
1 2
1 2
2 1
1 2
2 2
1 2
1 2
2 1
2 2
2 2
1 2
2 1
2 1
2 1
1 2
2 1
2 2
1 2
2 1
1 2
1 1
1 1
1 1
2 1
2 1
1 2
2 1
1 2
1 2
1 2
2 2
2 1
2 2
2 1
1 1
2 1
1 2
2 2
1 2
2 2
2 2
2 2
2 1
2 2
1 2
1 1
2 1
1 2
2 2
2 1
2 2
2 2
2 1
1 1
2 1
2 2
2 2
2 1
1 1
1 2
2 2
2 2
2 2
1 2
2 1
2 2
2 1
1 1
1 2
2 1
2 1
1 2
1 2
2 2
2 1
1 1
1 2
1 2
2 1
1 1
2 1
1 1
1 1
1 1
1 1
1 2
2 2
1 2
1 2
2 2
2 2
1 1
1 1
2 1
1 1
1 2
2 1
2 1
1 2
1 1
2 2
1 1
2 2
1 2
2 2
2 1
2 1
2 1
1 1
1 1
2 1
1 1
1 1
1 1
2 1
2 1
2 1
1 2
1 2
2 1
2 2
1 1
2 2
1 1
1 2
1 2
2 2
1 2
1 2
1 1
2 1
1 1
1 1
1 1
2 1
1 1
2 2
2 2
2 2
2 2
1 2
1 1
1 1
2 1
2 1
1 1
2 2
1 1
2 2
2 2
1 2
1 1
1 2
2 2
2 2
1 2
2 2
2 2
2 1
1 1
2 2
1 2
1 2
1 2
2 2
2 2
1 2
2 1
1 2
1 1
2 1
2 1
1 1
2 1
2 1
2 2
1 2
2 1
2 1
1 1
2 2
1 2
1 1
2 2
2 2
1 1
1 1
2 1
1 1
2 1
2 1
1 1
1 1
1 2
1 1
1 1
2 2
2 1
1 1
1 1
1 1
2 2
2 1
1 1
1 1
2 2
2 2
2 1
1 1
2 2
1 1
2 1
2 2
2 1
1 1
1 2
2 2
1 2
2 1
1 2
1 2
2 2
2 2
2 1
2 2
1 1
1 1
1 2
1 2
1 2
2 2
2 1
1 1
2 1
2 2
1 2
1 2
2 2
2 1
1 1
1 1
2 2
1 1
1 1
1 2
1 1
1 2
2 1
1 2
2 2
1 1
1 1
1 2
1 1
2 1
1 2
1 2
1 1
1 2
1 1
1 2
2 1
2 1
1 2
1 1
2 1
1 1
1 2
2 1
1 1
2 1
1 1
2 2
1 1
1 1
1 1
2 1
1 1
1 1
2 2
2 2
1 2
1 2
1 1
1 2
2 1
1 2
1 2
1 1
1 1
2 2
2 1
1 2
1 2
1 1
2 1
1 2
2 2
1 1
2 1
1 1
2 1
1 2
2 1
2 2
2 1
1 1
2 1
2 2
2 1
1 1
2 2
2 1
2 2
1 2
1 1
2 1
1 2
2 2
1 1
2 1
1 1
1 1
2 2
2 1
2 1
2 1
1 2
2 1
2 2
1 2
2 2
1 2
1 1
1 2
2 1
1 1
1 2
1 1
2 1
1 1
1 1
1 2
1 2
1 1
1 1
2 1
2 2
1 1
2 1
1 1
2 1
1 1
1 2
1 2
2 1
2 2
1 2
1 1
2 2
1 2
1 1
2 1
2 2
1 2
1 2
2 1
1 2
1 2
2 1
1 2
2 1
2 1
2 2
2 1
1 2
2 2
1 2
1 1
1 2
1 1
2 2
2 2
2 2
1 1
1 2
1 1
1 2
1 1
1 1
1 1
1 2
1 1
2 1
2 1
1 2
2 2
1 1
2 1
1 2
2 1
2 1
2 2
2 2
1 1
1 2
2 2
2 2
2 2
2 1
2 2
2 2
2 2
2 1
2 1
2 1
1 2
1 2
2 2
1 2
1 2
1 1
2 1
1 2
2 1
1 1
2 1
1 2
2 1
2 2
2 1
2 2
2 2
2 1
2 2
2 2
1 2
1 1
2 1
1 2
1 2
1 1
1 1
2 2
1 2
1 2
1 2
1 2
1 2
1 2
2 1
2 2
2 1
2 1
1 1
2 2
2 1
2 2
1 1
1 1
1 1
1 2
1 1
1 2
1 2
2 2
2 1
1 2
2 1
1 1
1 1
1 1
2 1
2 1
2 1
1 1
2 1
1 1
2 1
1 2
1 2
1 1
2 2
2 1
2 2
1 1
2 1
1 2
1 1
1 1
1 2
1 2
2 1
2 2
2 1
2 1
2 1
1 2
1 2
1 2
1 2
2 2
2 2
2 1
2 1
1 1
1 2
2 2
1 2
1 2
1 1
1 2
2 1
1 2
2 1
1 2
1 1
1 2
1 2
2 2
2 1
2 2
1 2
2 2
2 1
2 1
1 2
2 2
1 1
2 2
2 2
2 1
1 2
2 1
2 2
2 1
1 2
1 1
2 1
2 2
2 2
2 2
2 1
1 2
2 1
1 1
1 2
1 2
1 2
2 2
2 1
1 1
2 2
2 2
1 2
1 1
2 2
2 1
2 1
1 1
1 2
1 1
2 2
1 1
2 2
2 2
2 2
1 1
2 2
2 2
1 1
2 1
1 2
1 1
1 1
1 2
2 1
1 2
2 1
2 2
1 2
2 1
1 2
1 2
1 2
2 1
2 1
1 1
2 2
2 1
2 2
1 1
1 2
1 2
2 1
1 2
2 1
2 1
2 1
1 1
1 1
2 2
2 2
2 2
1 1
1 2
2 1
1 1
2 1
1 1
2 2
1 1
2 2
1 1
1 1
2 2
1 2
1 1
1 2
1 1
2 1
1 2
1 1
2 2
1 2
2 2
1 1
2 1
2 2
2 1
2 2
1 1
1 1
1 2
1 1
1 1
2 2
2 1
2 2
2 1
2 2
2 2
1 2
2 1
1 2
2 1
1 2
1 1
2 1
1 1
1 1
2 1
2 2
1 2
1 1
1 1
2 2
2 1
2 1
2 2
1 2
1 2
1 1
2 2
2 2
1 1
1 1
1 2
1 2
1 2
2 1
1 2
2 1
1 1
2 1
1 2
1 1
1 1
2 1
1 2
2 2
1 1
2 1
2 2
2 2
2 2
2 1
1 1
1 2
2 1
1 1
2 2
1 1
2 1
2 2
2 1
2 2
2 2
2 2
2 1
1 2
1 1
2 1
2 2
2 2
2 1
2 1
2 1
2 1
1 2
2 1
1 1
1 2
2 2
1 1
1 1
2 2
2 1
2 1
2 1
2 1
1 1
2 1
1 2
1 1
1 1
1 1
1 2
2 1
2 1
1 1
2 2
2 2
2 2
2 1
2 1
1 2
1 1
1 1
2 2
2 1
2 2
1 1
2 1
2 1
2 1
2 1
1 1
2 1
1 1
1 1
1 1
2 1
1 2
2 1
2 1
1 1
1 1
2 1
2 2
1 1
1 2
2 2
1 1
1 2
2 1
2 1
1 1
2 1
1 2
2 2
1 1
2 1
1 2
2 1
1 2
1 1
1 1
2 1
1 2
2 2
1 1
2 1
1 1
2 1
2 1
1 1
1 1
2 1
2 2
1 1
2 1
1 2
1 1
2 1
2 2
2 1
2 1
1 1
1 1
2 2
1 2
1 1
2 2
1 2
1 2
1 1
2 1
2 1
1 2
2 2
2 1
1 1
1 1
2 2
2 2
1 1
1 2
1 2
2 1
2 2
1 2
1 2
2 1
2 1
2 1
2 1
2 1
1 1
2 1
1 1
1 2
2 1
1 1
1 1
1 1
2 2
2 1
1 1
1 1
1 1
2 2
1 1
2 2
1 1
1 1
2 2
1 2
2 2
2 1
1 1
1 1
1 1
2 1
2 1
2 1
2 1
1 2
2 2
1 2
2 1
1 2
1 1
1 1
1 1
1 1
2 2
1 1
2 1
2 1
2 1
1 2
1 1
2 2
2 2
1 1
2 1
2 1
2 1
1 1
1 1
2 2
1 2
1 2
2 1
2 1
1 2
1 1
1 1
2 2
1 2
1 1
2 2
2 2
1 1
1 2
2 1
1 2
1 2
2 2
2 2
1 1
2 1
2 2
1 2
1 2
2 1
1 1
2 1
2 1
2 2
1 1
1 2
1 1
2 1
1 2
2 2
2 1
1 1
1 2
1 1
1 2
2 2
2 2
1 2
2 1
2 1
2 2
1 2
1 1
2 1
1 1
1 1
2 1
2 1
2 1
1 1
2 2
2 1
2 2
2 2
2 1
1 1
2 1
1 1
1 1
2 2
1 2
1 1
1 2
2 2
2 2
2 2
1 2
2 1
1 1
1 1
2 1
1 1
2 2
1 2
1 1
1 1
2 2
1 2
2 2
1 1
1 2
2 1
2 1
2 1
1 2
2 2
2 2
2 2
2 2
2 1
2 1
1 1
1 2
2 2
1 2
2 1
2 2
2 2
2 2
2 1
2 2
1 1
1 1
1 2
2 1
1 1
2 2
2 1
2 2
1 1
2 2
2 2
2 1
2 2
1 2
1 2
2 2
2 2
1 2
1 1
2 2
2 2
1 2
1 1
1 1
1 1
1 2
2 1
2 1
2 1
2 1
1 1
1 1
2 1
2 1
1 1
2 1
1 2
2 1
2 2
1 2
2 2
1 2
2 2
2 1
2 2
1 2
2 1
1 2
1 1
2 1
1 2
1 2
1 2
2 1
2 2
1 1
1 2
2 1
1 2
1 2
2 2
2 2
2 2
1 1
2 1
1 1
1 1
2 2
1 2
2 1
1 2
1 1
1 2
1 1
2 2
2 1
1 2
2 1
2 2
1 2
1 2
1 1
1 1
1 2
1 1
1 2
2 1
2 1
1 2
2 1
1 2
1 1
1 2
1 1
2 1
2 1
1 2
1 2
2 2
2 1
2 1
1 1
1 2
1 2
1 1
1 2
1 2
2 2
1 1
1 1
1 2
2 1
1 1
2 2
2 2
1 1
1 1
2 1
2 1
2 2
1 2
1 1
2 1
2 2
1 1
2 2
2 1
2 2
2 2
1 2
2 2
1 2
2 1
1 2
2 1
1 1
1 1
1 1
2 1
2 1
2 1
2 2
2 1
1 2
1 2
1 2
1 2
1 2
1 1
1 2
1 1
1 1
2 2
2 2
2 1
2 2
1 1
1 2
1 1
1 2
1 1
1 1
2 1
1 1
2 2
1 2
2 2
1 1
1 1
1 1
2 2
1 1
2 2
2 1
1 2
2 2
2 2
1 1
2 2
2 1
1 1
1 1
1 1
1 1
1 1
2 2
1 2
1 1
2 1
2 2
1 1
1 2
2 2
1 2
2 2
2 1
2 2
1 1
1 2
1 2
1 2
1 2
2 2
1 1
1 2
2 1
1 1
1 1
2 1
1 2
1 1
2 1
2 2
2 1
2 2
2 2
1 2
2 2
2 2
2 1
2 2
2 2
2 2
2 2
1 1
2 2
2 2
2 2
1 1
2 2
2 1
1 2
1 2
1 2
2 1
2 1
2 2
1 2
2 1
1 1
2 2
2 1
2 1
2 2
2 2
1 1
1 1
1 2
2 1
1 1
1 1
1 1
1 2
2 1
1 2
2 1
1 1
1 1
2 1
1 2
2 2
1 1
1 1
1 2
2 1
2 2
1 2
1 2
2 2
2 1
2 2
2 1
2 2
2 1
1 1
1 2
2 1
1 2
2 1
1 2
2 2
1 2
2 2
2 2
2 2
2 1
1 2
1 2
1 2
2 2
2 2
1 1
2 2
2 1
1 2
2 1
2 2
1 1
2 1
1 1
1 1
2 2
1 2
2 2
1 2
1 1
2 1
1 1
1 2
2 1
2 1
2 2
1 2
1 2
2 2
2 2
2 1
1 2
2 2
1 2
1 2
2 2
1 1
2 1
1 1
1 2
1 2
1 1
1 2
1 2
1 1
2 1
2 2
1 2
1 2
2 2
1 1
1 2
1 1
2 2
2 2
2 2
2 2
2 2
1 1
1 1
2 1
2 2
1 2
1 1
1 1
2 2
1 1
2 1
1 2
2 1
2 1
2 2
2 1
2 1
2 1
2 2
1 1
1 2
2 1
1 1
2 2
1 1
2 2
2 1
2 2
1 1
2 1
1 1
1 2
2 1
1 1
1 1
1 1
1 1
1 2
2 1
2 1
2 2
2 1
1 2
1 1
1 2
1 1
1 2
1 2
1 2
1 1
1 2
2 2
1 2
1 2
1 1
1 1
1 2
1 2
2 2
1 1
2 1
2 1
2 2
2 2
1 2
1 1
2 1
1 2
1 2
2 2
1 2
2 2
1 2
2 2
2 2
2 2
2 1
2 1
1 2
1 2
2 2
1 2
2 2
2 2
2 2
2 1
1 2
1 1
2 2
1 1
2 1
1 2
2 1
2 1
2 1
2 2
1 1
2 2
1 2
2 2
1 2
1 1
1 1
1 1
1 2
2 2
2 1
2 1
2 1
2 2
2 1
1 2
1 1
1 1
2 1
1 1
1 1
2 1
1 1
2 2
2 1
1 2
2 1
1 1
1 1
2 2
2 2
2 2
2 2
1 1
1 1
1 1
2 1
1 2
1 2
1 2
1 2
2 1
1 2
1 1
2 2
1 1
1 2
2 2
1 1
1 2
1 2
2 2
2 2
2 1
1 1
2 1
2 2
1 2
1 1
1 2
1 2
1 2
2 1
2 2
1 2
1 2
1 2
1 1
2 1
1 2
2 2
1 1
2 2
1 1
2 1
1 2
1 1
2 1
1 1
2 2
2 1
2 2
2 1
2 2
1 1
2 2
2 2
1 2
2 2
1 1
1 1
1 1
2 1
2 2
2 1
2 2
1 1
2 2
1 1
2 2
2 2
1 1
1 1
1 1
2 2
1 1
2 2
1 2
2 2
2 2
1 2
2 1
2 2
2 2
1 1
2 2
2 1
1 1
2 2
1 2
2 1
2 2
1 1
2 1
1 2
2 1
1 2
1 1
2 1
2 2
2 2
2 2
1 2
2 1
1 1
2 1
1 1
2 1
2 1
1 2
1 1
2 2
2 1
2 1
2 2
1 1
1 1
1 1
1 1
1 2
1 2
2 1
2 1
2 1
1 1
1 1
1 2
1 1
2 1
1 1
1 1
1 2
1 2
2 2
1 2
1 2
1 1
2 1
2 2
2 2
1 2
2 1
2 2
1 2
1 2
1 2
1 2
1 2
1 1
2 2
1 1
1 1
1 1
1 1
1 1
1 2
1 2
2 2
2 1
2 1
2 1
1 2
1 2
1 1
1 1
1 1
1 1
1 1
2 1
1 1
2 2
2 2
2 2
2 1
1 1
1 1
1 2
1 1
1 2
1 1
1 1
2 2
2 2
2 2
2 1
2 2
1 1
1 2
1 2
2 1
1 1
1 2
2 2
1 2
2 1
1 2
1 1
1 1
2 2
2 1
1 2
2 2
2 2
1 1
2 2
2 1
2 1
2 2
2 1
2 2
2 1
1 1
1 1
1 2
2 1
1 1
1 1
2 2
2 2
1 1
2 1
2 2
2 2
1 1
2 1
1 2
1 1
1 2
2 2
2 2
2 1
2 1
2 2
2 2
1 2
1 2
2 2
2 2
1 2
1 1
2 2
2 1
2 2
2 1
1 1
1 2
1 2
1 2
1 1
1 1
2 2
2 2
2 2
2 2
1 2
1 2
1 1
2 1
1 1
2 1
2 1
2 2
1 2
2 2
2 1
1 2
2 2
2 2
1 1
1 1
1 2
2 2
1 1
1 2
2 1
1 1
1 2
2 2
2 2
1 1
1 2
2 2
2 2
2 2
2 1
1 1
2 2
1 1
2 2
2 2
1 1
1 1
1 1
2 1
1 1
1 2
1 1
2 2
2 1
1 1
2 2
1 2
1 2
2 2
1 1
1 1
1 2
2 2
1 1
1 1
1 1
1 2
1 1
2 1
1 1
1 2
1 2
1 2
1 1
1 1
2 2
2 2
2 2
1 1
1 1
1 1
2 1
1 1
1 1
2 2
1 2
1 2
2 2
1 2
2 2
1 2
1 2
1 1
1 2
2 2
2 2
2 1
2 1
2 2
2 1
1 2
1 2
2 2
1 2
1 2
2 2
2 1
1 2
2 2
1 1
2 2
2 1
2 1
2 1
1 2
2 2
2 1
1 2
1 1
1 2
2 2
2 2
2 2
1 1
1 2
2 2
1 2
1 2
2 1
1 1
2 1
2 2
1 1
1 1
2 2
2 2
2 1
2 1
1 2
2 2
2 2
2 1
2 2
1 2
1 2
2 2
2 1
2 1
1 2
2 1
1 1
2 2
1 1
2 2
2 1
1 2
2 2
1 2
1 2
2 1
1 1
1 2
2 1
1 1
2 2
2 1
2 2
2 2
2 1
1 1
2 2
2 1
1 2
2 1
1 2
2 2
2 2
2 2
1 2
1 1
1 2
2 1
1 2
1 2
1 2
1 2
2 2
1 1
2 2
1 2
2 1
2 2
1 2
1 2
1 1
2 1
1 1
1 1
1 1
1 1
1 1
2 2
1 1
1 2
1 2
2 1
1 2
1 1
1 2
1 1
2 1
1 1
2 1
2 1
2 1
1 1
2 2
1 2
1 1
2 1
2 2
1 1
2 2
2 2
2 2
1 1
2 2
2 1
2 2
1 1
1 1
2 1
1 2
2 2
2 1
2 1
1 2
2 2
1 2
2 1
2 1
1 2
2 2
2 1
1 1
2 1
2 1
2 2
2 1
2 2
1 1
2 1
2 2
2 1
1 1
1 2
2 1
2 1
2 1
2 1
2 2
1 2
2 1
1 1
2 2
1 2
2 2
1 2
1 1
1 2
2 2
1 1
1 2
1 1
1 2
2 2
2 2
1 1
2 2
2 1
2 2
2 2
1 2
2 2
2 1
1 1
2 2
1 1
1 2
2 2
2 2
1 2
1 1
2 1
2 1
2 2
2 2
1 2
1 1
2 1
1 2
2 2
2 1
2 1
2 2
2 2
2 1
2 2
1 1
2 2
1 1
2 1
1 1
2 1
2 1
1 2
2 2
2 1
1 2
2 1
1 2
1 2
2 2
1 1
2 1
2 2
2 2
1 1
1 2
1 1
1 1
2 1
2 2
2 2
1 2
1 2
2 2
1 1
2 2
2 2
2 2
2 2
1 1
1 2
2 1
2 2
2 2
2 1
1 2
1 1
2 2
2 2
2 1
2 1
1 1
2 2
1 2
2 2
2 1
2 1
2 1
1 1
2 2
1 1
1 1
2 1
2 2
1 1
2 2
1 1
1 1
2 2
2 1
1 2
2 1
1 2
1 1
2 2
1 2
2 1
1 1
2 1
2 1
2 2
2 2
1 2
2 2
2 1
2 2
2 2
1 1
1 1
2 2
1 2
1 2
2 1
2 1
2 2
2 1
2 1
2 1
2 1
1 1
1 2
2 1
2 1
1 2
1 2
1 2
2 1
2 1
1 2
1 1
1 1
1 2
2 2
1 2
1 2
2 1
2 1
2 2
1 2
1 2
1 1
2 1
1 2
2 2
2 1
2 1
1 2
2 1
2 2
2 2
1 1
2 1
2 1
2 2
1 2
1 2
2 2
2 2
1 2
2 1
2 1
2 1
2 1
1 2
1 2
1 1
1 2
2 2
2 1
1 1
1 1
1 2
2 1
1 1
2 1
1 2
1 2
2 1
1 1
2 1
2 1
1 2
2 1
2 2
1 1
2 1
2 2
1 1
2 2
1 1
1 2
2 2
2 2
2 1
1 2
1 2
1 1
2 1
1 1
1 2
1 1
1 1
1 1
1 1
2 1
1 1
1 1
1 1
1 1
1 2
2 1
2 1
1 2
2 2
1 1
2 1
2 2
1 2
2 2
2 2
1 2
2 2
2 1
1 1
1 2
1 1
2 2
2 1
2 1
2 1
1 1
1 2
2 2
1 2
1 2
1 2
1 2
2 2
1 1
2 1
2 1
1 2
1 1
1 1
1 2
2 2
2 1
2 2
1 2
2 2
1 1
2 2
1 2
2 2
2 1
1 1
1 2
1 2
2 1
1 2
2 2
1 2
1 1
2 2
1 1
1 1
1 1
1 2
2 1
2 2
1 2
1 1
1 1
2 2
1 1
2 2
1 2
2 2
2 1
2 2
1 2
1 2
1 1
1 1
2 2
2 1
2 1
2 2
1 1
1 1
2 2
1 2
1 1
2 1
1 2
2 2
1 1
1 1
1 2
2 1
2 2
2 1
2 1
1 2
1 2
1 1
2 1
1 1
2 2
1 2
1 1
2 2
1 2
2 1
2 1
2 1
1 2
2 2
1 2
1 1
1 2
1 2
1 1
1 1
2 1
1 1
1 1
2 2
2 2
2 2
2 2
2 1
1 1
1 2
1 1
2 2
2 2
2 1
1 1
2 1
1 2
1 2
2 2
1 2
1 1
1 2
2 2
1 1
1 1
1 1
1 2
2 1
2 1
2 2
1 1
2 1
2 2
1 1
1 1
1 2
2 2
1 2
1 1
1 1
1 1
2 2
1 1
1 2
2 1
2 2
2 2
1 2
2 2
2 2
1 1
1 1
1 1
2 2
2 1
2 2
2 2
2 1
1 2
2 1
1 1
2 1
2 2
2 1
1 1
1 2
2 2
1 1
1 1
1 2
1 1
2 2
1 2
2 1
2 1
1 2
2 1
2 1
1 2
2 1
2 2
2 1
1 1
1 2
2 2
1 1
1 1
1 1
2 1
1 2
2 1
1 1
1 1
1 1
1 2
2 2
1 1
2 2
2 2
1 1
1 1
2 1
2 2
1 1
2 2
2 1
1 2
2 2
2 1
1 2
1 1
1 2
2 1
2 2
2 1
2 2
1 2
1 1
1 2
2 2
2 1
1 2
1 2
2 2
1 1
2 2
1 2
1 1
1 2
2 1
2 1
1 1
1 1
1 2
1 1
1 1
1 2
2 2
2 1
1 2
2 1
2 2
2 1
1 1
1 2
2 2
2 2
2 1
1 2
1 1
2 1
2 1
2 2
1 2
2 1
1 1
2 1
1 1
2 2
2 2
2 1
1 1
1 2
1 1
1 1
2 1
1 2
2 1
1 2
2 2
2 2
1 1
2 1
1 1
2 1
2 2
1 1
1 1
2 2
2 2
1 2
2 1
2 1
1 1
2 2
2 1
2 2
2 2
1 2
2 1
2 2
2 1
1 2
2 1
2 1
1 2
2 2
2 1
1 1
2 1
2 1
1 1
2 1
1 2
2 1
1 1
2 2
2 1
1 1
1 2
1 2
2 2
1 1
1 2
1 2
2 2
2 1
1 1
2 2
1 2
2 2
2 2
2 1
1 1
2 2
2 1
1 2
1 1
1 2
2 2
2 2
1 1
2 1
2 1
2 1
2 1
2 1
1 2
2 2
1 1
2 1
2 1
1 1
1 1
2 2
2 1
1 1
2 1
2 2
2 2
2 2
1 2
1 1
1 2
1 2
2 1
1 2
2 1
1 1
2 2
1 1
1 1
1 2
2 1
1 1
1 2
1 2
2 1
2 1
2 2
2 1
2 2
1 1
2 2
1 1
2 1
2 1
1 1
2 1
2 1
1 2
1 1
1 1
2 1
1 2
2 1
2 1
1 1
1 2
2 1
1 1
1 1
2 2
2 2
2 2
2 1
1 2
2 1
2 1
1 1
1 1
1 1
1 2
1 2
1 1
1 1
1 2
1 2
2 1
2 1
2 1
2 2
2 1
1 1
1 1
2 1
1 2
2 1
1 1
2 1
2 1
1 1
1 1
2 1
2 2
2 1
2 1
1 1
1 2
1 2
1 1
1 1
1 1
1 2
1 2
1 1
2 1
2 1
2 2
1 1
2 1
1 1
2 2
1 2
2 2
2 2
1 1
1 1
1 1
1 2
1 1
1 2
2 1
2 1
2 1
1 1
1 2
2 2
2 1
1 1
2 1
2 1
1 2
1 1
2 2
2 1
1 1
1 1
2 1
1 1
2 1
1 1
2 1
2 2
2 2
1 1
1 2
2 1
2 1
2 2
1 2
2 2
2 2
2 2
2 2
2 2
2 2
1 2
2 2
2 1
1 2
1 1
2 2
1 1
2 1
2 2
2 1
1 2
1 1
1 1
1 2
2 1
2 2
2 1
2 2
1 2
2 2
1 1
1 1
1 1
2 2
1 2
1 1
1 2
1 1
1 1
2 2
1 1
1 2
2 1
2 2
1 1
2 1
1 1
2 2
1 1
2 1
2 1
1 1
1 1
1 1
1 1
1 2
1 1
1 2
2 2
2 2
1 1
2 2
2 2
1 2
1 1
2 1
2 2
2 2
1 1
1 1
1 1
1 2
2 2
2 2
1 2
2 1
2 2
1 1
2 2
2 2
1 1
2 1
1 2
2 2
1 2
1 2
2 1
1 1
2 1
2 2
1 2
2 2
1 1
1 1
2 1
1 1
1 1
2 2
2 2
1 1
2 2
1 2
2 1
2 1
1 1
1 1
2 2
1 1
1 1
1 2
1 2
2 1
2 1
2 1
2 1
2 1
1 1
2 2
2 2
1 1
1 2
2 2
2 1
1 2
2 1
1 1
2 2
1 1
1 1
2 2
2 1
1 2
1 1
1 2
2 1
2 1
2 2
1 1
2 1
2 1
1 2
2 2
1 2
1 2
1 1
2 1
2 2
2 1
1 2
1 1
2 1
2 2
1 1
2 2
1 2
2 2
2 2
1 1
1 2
1 1
2 2
1 1
1 2
1 2
2 2
1 1
1 1
1 2
2 2
2 1
1 1
2 2
2 2
2 2
2 2
2 1
1 1
1 1
2 2
2 1
2 2
2 2
1 1
1 1
2 1
2 2
1 2
1 2
1 2
1 2
1 2
1 2
1 2
2 1
2 1
2 1
2 2
2 1
2 2
1 1
1 2
2 2
2 1
1 2
1 2
1 1
2 1
2 1
2 1
1 2
2 2
1 2
2 2
2 1
1 2
2 2
1 1
1 2
2 1
2 2
2 2
1 2
2 1
2 1
1 2
1 2
2 1
1 2
1 2
1 2
2 2
2 1
1 1
1 1
2 1
1 2
2 2
2 1
2 1
2 2
2 2
2 1
2 2
2 2
2 1
1 1
1 2
2 1
1 1
2 2
1 2
2 2
2 1
1 1
1 2
2 2
1 2
1 2
1 1
2 1
2 1
1 1
1 2
2 1
1 1
2 1
1 1
2 2
1 1
1 1
1 2
1 1
1 2
2 1
2 2
1 2
2 1
1 1
1 1
2 1
1 1
2 2
2 2
2 1
2 1
1 2
1 2
1 2
1 2
2 1
2 1
1 2
1 2
1 1
1 1
2 1
1 1
1 2
1 2
2 2
1 1
1 2
2 1
2 2
1 1
1 2
1 1
1 1
2 2
1 1
1 2
2 2
2 1
2 1
2 2
1 2
1 2
1 1
2 2
1 1
2 1
2 2
2 2
2 1
2 2
1 2
1 1
2 1
1 2
2 1
1 2
2 2
2 2
1 2
2 1
1 2
1 2
2 2
2 1
2 2
1 1
2 1
2 2
2 1
2 1
1 1
1 2
2 2
1 1
1 1
1 2
2 1
2 2
2 1
2 1
1 2
1 2
2 2
1 1
2 1
2 2
2 2
2 1
1 2
2 1
1 1
1 2
2 1
2 1
1 2
2 1
2 2
2 2
1 1
1 2
1 1
1 2
1 1
1 1
2 1
2 2
2 1
2 2
1 2
1 2
2 2
2 1
2 2
1 2
1 1
1 1
1 2
2 2
2 2
1 2
1 2
2 1
2 2
1 1
2 2
2 1
2 2
2 1
2 1
2 2
2 1
1 2
1 1
2 1
2 2
2 1
2 2
1 1
1 1
2 2
1 1
2 2
2 1
2 1
2 2
2 1
1 2
1 1
2 2
1 1
2 1
2 2
2 2
2 1
1 2
1 2
1 1
1 2
2 2
2 2
2 2
2 2
2 2
2 2
1 2
1 1
2 2
1 1
1 1
2 1
2 2
1 2
2 1
1 2
1 2
2 2
2 1
1 1
1 1
1 1
1 1
1 2
1 1
2 1
1 2
2 2
1 2
2 2
1 2
2 1
1 1
1 2
1 1
2 1
2 2
2 2
2 1
1 1
1 1
1 2
1 1
2 2
2 2
2 1
1 1
1 2
2 2
2 2
2 2
2 2
2 2
1 1
2 2
1 1
2 1
2 2
1 2
2 2
2 2
2 2
2 2
1 2
1 1
2 2
2 1
2 2
1 1
1 2
2 1
1 2
2 2
2 1
2 1
2 1
1 2
2 2
2 1
2 2
1 2
1 1
2 1
1 2
1 1
2 2
1 2
2 1
1 1
2 2
1 1
1 2
2 2
2 1
2 1
2 1
1 2
1 1
1 1
2 1
2 1
2 2
2 1
1 2
1 2
1 1
1 2
1 2
2 1
2 2
2 1
2 1
2 2
2 2
1 2
1 1
2 2
2 1
2 1
2 1
2 2
1 1
1 1
2 1
2 1
1 2
1 2
2 2
2 1
1 2
2 1
1 1
2 1
2 1
2 1
1 2
2 1
2 1
1 2
2 2
1 1
2 2
2 1
2 1
2 2
1 1
2 1
1 1
2 2
2 1
1 1
2 1
1 1
2 1
2 1
2 2
1 1
2 1
2 2
2 1
1 1
2 2
2 2
2 1
2 1
1 1
1 2
2 2
1 1
1 2
2 2
2 2
1 1
2 2
2 2
2 1
2 1
1 2
2 2
2 1
1 2
2 2
2 1
2 1
1 2
2 1
1 2
1 2
1 1
1 2
2 2
1 2
1 2
2 2
2 1
2 1
1 2
1 1
2 1
2 2
1 1
1 1
1 2
1 1
1 2
1 2
1 2
1 2
2 2
2 1
1 2
1 1
2 1
2 1
2 1
2 2
1 2
1 2
2 2
2 1
2 1
1 2
2 1
2 2
2 2
2 2
2 1
2 2
1 2
2 1
1 1
1 1
2 1
1 2
2 1
1 1
2 2
2 2
2 1
1 1
2 1
1 1
1 2
1 2
2 1
2 1
1 2
2 1
1 2
2 2
1 2
2 1
1 1
2 1
1 1
2 1
2 2
2 1
1 2
1 2
1 2
2 1
2 2
2 1
2 1
1 2
2 2
1 1
2 1
1 2
2 1
2 2
2 2
2 1
1 1
2 1
1 2
1 1
1 1
2 1
2 1
2 1
1 1
2 1
2 1
1 2
2 1
2 2
1 1
2 2
2 2
1 1
1 2
2 2
1 1
2 2
2 1
2 2
1 1
1 2
2 1
2 2
2 2
1 1
2 1
2 2
1 2
2 1
2 1
1 2
2 1
2 1
1 2
1 2
1 1
1 2
2 1
1 2
2 2
2 2
2 1
1 2
1 2
2 1
2 1
2 1
2 2
2 1
1 2
2 1
1 1
1 1
1 2
1 2
1 1
2 1
2 1
2 1
1 1
2 2
1 2
2 1
1 2
2 2
2 2
2 1
1 2
1 2
2 1
1 1
2 2
1 2
2 2
2 2
2 2
2 1
2 1
2 1
2 2
2 2
2 2
2 2
1 1
1 2
2 2
2 2
2 1
2 2
2 2
2 2
1 1
2 2
1 1
1 2
2 1
2 2
1 1
2 2
2 1
1 1
1 2
2 1
2 2
2 1
1 2
1 2
1 2
2 2
1 1
1 1
2 1
1 1
2 2
2 2
2 1
2 1
1 1
1 2
2 1
1 2
2 2
2 1
1 2
2 1
2 2
1 1
2 2
2 1
2 1
2 1
2 2
2 2
2 1
2 1
1 1
2 1
1 2
1 2
1 1
1 2
1 2
2 1
1 2
2 2
2 2
1 1
1 1
2 2
1 2
2 1
1 1
1 1
2 2
2 1
2 1
1 1
2 2
1 2
2 2
1 2
2 1
2 1
2 1
2 1
2 2
1 2
2 2
2 2
2 1
2 2
2 1
1 1
2 1
2 2
1 1
2 2
2 1
2 1
2 1
1 1
1 1
2 1
2 2
1 1
1 2
1 2
2 2
1 2
2 2
1 2
1 1
2 2
1 2
1 1
2 1
1 2
1 1
2 1
1 1
1 2
2 1
2 2
1 1
2 2
2 2
2 1
1 2
1 1
2 1
2 2
2 2
1 1
2 2
2 1
1 1
2 2
1 1
2 2
1 2
2 2
1 1
1 2
1 1
2 2
2 1
1 2
2 1
1 2
1 2
2 1
2 1
1 2
2 2
1 1
2 2
1 1
2 1
2 2
1 2
1 1
2 2
2 2
1 2
2 2
2 2
2 1
1 1
1 2
2 2
1 2
1 1
1 1
1 2
1 1
2 1
2 1
1 1
1 2
2 2
1 1
2 1
1 1
1 2
2 1
1 2
1 2
1 2
2 2
1 2
1 2
1 1
1 2
1 1
1 2
2 2
1 2
2 1
2 1
2 1
1 1
2 2
1 1
2 2
2 2
2 1
2 1
1 1
2 1
2 1
2 1
2 1
1 2
2 2
2 2
2 1
1 1
2 2
2 1
1 2
2 2
2 2
1 1
1 1
2 2
2 1
1 1
2 2
1 2
2 2
2 2
1 1
1 2
2 1
1 2
2 2
1 1
1 1
2 2
2 1
2 2
2 2
1 2
2 1
2 1
1 2
1 2
1 2
2 2
2 2
2 2
2 1
2 1
1 2
1 2
2 1
2 2
1 2
1 1
2 1
1 1
2 2
1 1
2 2
2 1
2 1
1 2
2 1
1 1
2 1
1 2
2 2
1 1
2 1
2 2
1 1
1 2
1 2
1 2
1 1
1 2
2 1
1 2
1 1
2 1
1 2
2 1
2 2
1 1
1 2
2 1
1 2
2 1
2 1
1 1
2 2
2 1
1 2
2 2
1 1
1 2
1 2
1 2
2 2
1 2
1 2
2 1
2 2
2 2
2 2
2 1
2 2
2 2
1 1
2 2
1 1
2 2
2 2
2 1
1 1
1 1
1 2
2 1
2 2
2 2
2 1
2 2
1 1
1 2
1 2
1 2
1 2
2 2
2 2
2 2
1 2
2 1
2 2
2 1
2 1
2 1
1 2
1 1
1 2
1 2
2 2
2 2
2 2
2 1
2 2
1 1
1 1
1 1
1 2
1 2
2 1
2 1
1 1
2 1
1 1
1 2
1 2
1 2
1 1
1 1
2 1
1 1
1 2
1 2
1 1
1 1
2 1
2 2
2 1
2 2
1 2
1 2
1 2
1 1
1 1
1 1
2 2
2 1
1 1
2 1
2 2
2 1
2 1
1 2
1 1
1 1
1 1
1 1
1 2
1 2
2 2
1 1
1 1
1 2
2 1
2 2
2 2
2 1
2 2
1 1
1 2
1 1
2 1
2 2
1 1
2 2
2 1
1 1
1 1
2 2
1 2
1 2
1 2
1 2
1 1
1 1
2 1
2 2
2 2
2 1
1 1
1 1
1 1
1 1
2 1
1 2
2 2
1 2
1 1
1 1
1 2
1 2
2 2
2 2
1 1
2 2
1 1
2 2
2 1
2 1
2 1
2 1
2 2
1 1
2 2
2 2
2 1
2 1
1 1
1 1
2 1
2 1
1 1
2 1
1 2
2 1
1 1
1 2
1 2
1 2
1 2
1 2
2 2
2 2
2 2
2 2
1 2
1 2
2 2
2 2
2 1
1 1
1 2
1 2
2 2
2 2
2 2
2 1
2 2
2 2
2 1
1 1
2 2
1 1
1 1
1 1
1 1
1 1
2 1
1 2
2 2
1 2
1 1
1 1
1 2
2 2
2 2
2 2
2 2
2 2
1 2
1 1
2 1
2 1
2 2
1 2
2 1
1 2
1 1
2 2
1 1
2 2
2 1
2 1
2 2
2 1
2 2
2 2
2 2
1 2
2 2
2 2
2 1
2 2
2 1
2 1
1 2
2 1
1 2
1 1
1 1
2 1
1 2
1 2
1 2
2 1
1 2
2 1
1 1
1 1
1 1
1 2
2 2
1 1
1 1
2 1
2 1
1 1
2 2
1 2
2 1
2 1
2 2
1 1
2 2
1 2
2 2
2 2
1 1
1 2
1 2
2 1
2 2
2 1
1 2
2 1
2 2
1 2
1 2
2 1
2 1
1 2
1 2
2 2
1 1
1 1
1 1
1 1
2 1
2 1
2 2
1 1
1 2
2 2
1 1
2 2
1 2
1 1
1 2
2 2
2 2
1 1
2 1
1 2
1 2
1 1
2 1
1 2
1 1
2 1
2 1
1 1
1 1
2 2
2 1
2 2
1 2
1 2
1 1
2 2
1 1
2 1
2 1
1 1
2 2
2 2
2 1
1 1
1 1
2 1
2 1
2 1
1 1
1 2
2 1
2 2
1 2
1 2
1 2
1 1
2 1
1 1
2 2
1 1
2 1
2 2
1 1
1 1
1 1
1 2
1 1
2 2
2 2
2 2
2 2
1 1
2 2
1 1
1 2
2 1
2 1
2 1
2 1
1 1
1 1
1 2
1 1
1 1
1 2
2 1
2 1
2 2
1 2
1 2
2 1
2 1
2 2
1 1
1 2
2 2
2 1
2 1
2 1
2 2
1 1
1 2
2 1
2 1
1 1
2 2
2 1
1 1
1 1
1 2
1 2
1 1
1 1
2 1
2 2
1 1
2 1
2 1
1 1
2 2
1 1
1 1
1 2
1 1
1 2
2 2
1 2
2 2
1 1
2 2
2 2
1 1
1 1
1 2
2 2
1 1
2 2
2 1
1 1
1 2
2 2
2 1
2 1
2 1
2 1
2 2
1 2
1 1
1 2
2 2
1 2
2 2
2 1
1 1
1 1
1 1
2 2
1 2
1 1
1 2
1 2
1 1
1 1
1 1
2 2
1 2
2 1
1 1
1 1
1 1
1 2
2 2
2 2
1 2
1 2
2 1
1 2
2 2
1 2
1 1
2 2
2 1
1 2
1 1
2 2
2 1
1 2
1 2
2 1
1 1
2 1
1 1
2 2
2 2
2 1
2 1
1 1
1 2
1 1
1 1
2 1
1 2
2 1
1 2
1 1
2 2
1 2
1 2
2 2
1 1
2 1
2 2
1 2
2 1
2 1
2 2
1 1
2 2
2 2
2 2
2 2
2 2
2 1
2 1
2 1
1 1
2 2
1 1
1 2
2 2
2 2
2 2
2 2
1 1
1 1
2 1
2 2
2 1
2 1
1 2
2 2
2 1
2 1
1 2
2 1
2 1
2 2
1 1
1 2
1 1
1 1
1 1
1 2
2 2
2 1
1 2
2 1
1 2
1 1
2 2
2 2
1 1
1 1
1 2
2 2
2 1
1 2
2 2
2 1
1 1
1 2
1 1
1 2
1 2
2 1
2 1
1 2
2 1
1 2
2 1
1 1
2 1
2 1
2 2
2 1
1 2
2 1
2 2
1 1
2 1
2 1
2 1
2 2
1 2
1 2
2 1
1 2
1 1
2 2
2 1
2 1
1 2
2 1
2 2
2 2
2 1
2 1
1 2
2 1
2 2
2 2
1 2
2 1
2 1
1 2
1 2
1 2
2 1
2 2
1 2
1 2
2 2
2 2
2 1
1 2
2 1
1 2
2 1
2 2
2 1
2 2
2 1
2 1
2 1
2 1
1 1
1 1
2 2
2 2
2 2
2 2
1 1
1 1
1 2
2 2
1 1
1 2
2 2
2 2
1 2
1 2
2 1
2 1
1 1
1 1
2 2
2 1
1 1
2 1
2 2
1 1
2 1
2 2
2 1
1 2
2 2
1 2
2 2
2 2
1 2
1 2
1 2
1 2
2 1
2 1
1 1
1 2
1 1
2 2
2 2
1 1
2 2
2 1
1 1
2 1
2 1
1 1
1 2
2 1
2 1
1 2
1 1
1 1
1 1
2 2
2 1
2 1
1 2
1 1
1 1
1 2
2 2
2 1
1 1
1 1
2 1
2 2
1 1
2 1
1 1
2 1
2 1
2 1
2 2
1 2
2 2
1 1
1 2
1 2
2 2
1 2
1 2
2 2
2 2
2 1
2 2
1 1
1 2
2 1
2 1
2 1
2 1
1 1
2 1
1 1
1 1
2 2
2 1
1 2
1 2
2 1
1 1
1 1
2 2
2 2
2 1
2 2
2 2
2 1
2 1
1 1
2 2
1 1
2 1
2 2
2 1
1 2
1 2
1 1
1 1
2 1
1 2
1 1
1 2
1 1
1 2
2 2
2 1
1 1
1 1
2 1
1 1
1 2
2 1
1 2
1 2
2 2
1 1
2 2
1 2
1 1
2 1
1 1
1 1
1 1
1 2
2 1
2 2
1 2
2 2
1 2
1 2
1 1
2 1
2 2
1 2
1 2
1 1
1 2
1 1
1 2
1 1
1 1
1 1
1 2
2 2
1 1
2 2
2 2
1 1
1 1
2 2
2 2
2 1
2 2
2 1
1 2
1 2
2 2
1 1
1 2
1 2
2 1
2 2
1 2
2 2
1 2
2 1
1 2
2 1
1 2
2 2
1 2
2 1
1 2
2 1
1 2
1 2
1 1
1 2
2 1
2 1
2 1
2 2
1 2
2 1
1 1
2 2
2 2
1 2
1 1
2 1
2 2
2 2
1 2
2 2
2 1
1 2
1 2
2 2
1 2
1 2
2 2
2 2
1 1
2 1
1 2
1 1
1 1
1 2
1 2
2 1
1 1
2 2
2 1
2 1
2 1
2 2
1 2
2 1
2 2
1 2
2 1
2 1
2 1
2 1
2 2
2 2
1 1
1 1
2 1
1 2
1 2
1 2
1 1
2 1
1 2
2 2
1 2
2 1
2 1
1 2
1 1
2 2
2 2
2 1
1 2
2 1
1 1
2 2
1 2
2 2
2 2
2 2
1 1
1 2
2 2
1 2
1 1
2 1
1 1
2 2
1 1
1 1
2 1
1 2
2 1
2 2
1 1
1 2
1 2
1 1
2 1
1 1
1 1
1 1
2 2
2 2
2 2
1 2
1 1
2 2
2 2
2 1
1 2
2 1
1 1
2 1
1 2
2 1
2 1
1 2
1 2
2 1
1 2
1 2
2 1
1 2
1 1
1 2
1 2
1 2
1 1
2 1
2 2
2 2
2 2
2 1
2 1
1 2
1 1
1 2
1 1
2 2
1 2
2 2
2 1
1 1
1 2
1 1
1 2
1 1
1 2
2 2
1 1
2 1
2 1
1 2
2 2
2 2
2 1
2 1
1 2
1 2
1 2
1 2
1 2
1 2
1 2
2 2
2 1
2 2
2 1
2 1
2 1
1 1
1 2
1 2
1 2
1 1
1 1
2 2
1 1
1 1
1 1
2 1
2 1
1 2
2 2
2 1
1 2
2 1
1 1
2 2
1 2
2 2
1 1
2 2
2 2
2 2
1 2
2 2
2 2
2 1
2 2
1 1
1 1
2 2
2 1
1 2
1 1
2 2
1 2
1 1
1 2
1 1
2 1
2 1
1 1
1 1
2 2
2 1
1 1
1 2
2 2
2 1
2 2
2 2
1 1
2 1
1 1
2 2
1 1
2 1
1 1
2 2
1 2
2 2
1 2
1 1
1 1
2 1
2 1
1 1
1 1
2 2
2 2
1 2
2 1
2 2
2 1
2 1
2 1
2 1
1 1
1 2
2 2
2 2
2 1
2 1
2 1
1 1
2 1
2 2
2 1
2 2
2 1
1 2
2 2
1 2
2 1
2 2
1 2
2 2
2 1
1 2
1 1
1 1
1 2
2 2
1 1
1 1
1 2
1 2
1 2
2 1
2 1
2 1
2 2
1 1
1 2
2 2
1 2
2 2
2 1
1 2
2 2
2 1
2 1
1 2
2 1
2 1
1 2
2 1
2 2
1 2
2 1
2 1
1 2
1 2
2 2
1 1
2 1
1 1
2 2
1 2
1 1
1 2
1 1
2 1
2 2
1 1
2 2
1 2
1 1
2 1
2 1
2 1
2 2
1 1
1 2
2 1
2 1
1 1
2 1
1 2
1 1
1 2
2 1
1 2
1 1
2 1
1 1
1 2
1 2
1 1
2 2
1 1
2 2
2 1
2 1
1 2
2 1
1 1
2 2
1 1
2 2
1 1
1 2
2 2
2 1
2 1
1 1
1 1
2 1
1 2
2 2
2 1
1 1
2 2
1 1
1 2
2 2
2 2
1 2
1 2
2 2
1 2
1 2
2 1
1 2
1 1
1 2
2 2
1 1
2 2
2 1
1 2
1 1
2 2
2 1
1 1
2 1
2 2
2 2
1 2
2 1
2 2
2 1
1 2
1 2
1 2
2 2
1 2
1 2
2 1
1 1
2 2
2 2
1 2
2 2
2 2
1 1
1 2
1 2
2 1
1 2
2 1
2 2
1 2
1 1
2 1
1 1
1 1
2 2
1 1
1 2
2 1
1 1
2 2
1 1
1 1
1 2
1 2
1 2
1 1
2 2
1 2
1 2
2 1
1 2
2 2
2 1
2 2
2 1
1 2
2 2
2 1
2 2
1 1
2 2
1 2
1 2
2 2
2 2
2 2
1 2
1 2
2 2
1 2
1 2
1 2
1 1
2 1
1 1
1 1
1 2
2 1
2 1
1 2
2 1
2 1
1 1
2 2
1 2
1 1
1 1
1 2
2 2
2 1
1 1
1 2
2 1
2 2
1 2
1 2
2 1
2 2
2 2
1 2
2 2
2 1
1 1
2 1
1 2
2 2
2 2
2 2
1 2
2 2
2 2
1 2
2 2
2 2
1 1
2 2
2 1
2 1
2 2
1 2
1 1
2 1
1 1
1 2
1 1
2 2
1 1
1 2
2 2
2 1
1 2
1 2
2 1
1 1
1 2
2 2
1 2
1 2
1 1
2 2
1 2
1 2
2 1
1 1
1 2
1 1
1 2
1 2
2 2
2 2
2 2
1 2
1 2
2 1
1 2
2 1
2 1
2 2
2 2
2 2
1 1
2 2
1 2
2 2
2 1
1 1
1 2
2 2
2 1
2 1
1 2
1 1
2 2
1 1
2 2
2 1
2 2
2 2
1 2
1 1
1 1
2 1
2 1
2 1
1 1
1 1
1 1
1 1
2 1
1 2
1 1
2 2
2 2
1 1
2 1
1 1
2 1
1 1
2 2
1 1
1 1
2 1
1 2
1 2
1 1
2 1
1 1
2 2
2 1
2 1
2 2
2 1
2 1
2 2
2 2
2 1
2 1
1 2
1 1
2 1
1 2
2 2
1 2
2 2
2 1
2 1
1 2
1 1
1 2
1 2
2 1
1 2
2 1
1 2
1 2
2 2
2 1
1 2
2 2
1 1
1 1
2 1
2 2
1 1
2 1
1 1
1 1
1 2
2 1
1 2
2 1
2 2
2 1
1 2
1 1
1 2
2 1
1 1
2 1
2 2
1 1
1 2
2 1
2 2
2 1
1 1
1 1
2 1
1 1
1 2
2 1
1 1
1 1
1 1
2 1
2 1
2 1
1 2
1 2
1 2
2 2
1 1
1 1
2 2
2 2
2 1
2 1
2 2
2 2
2 1
1 1
2 2
2 2
2 2
1 1
2 1
1 1
1 1
2 2
1 1
2 1
2 2
1 1
1 1
2 1
2 2
1 1
2 2
2 1
1 2
1 2
1 1
1 1
1 2
1 2
1 2
2 1
2 2
1 2
1 2
1 1
2 1
1 2
2 1
2 2
1 1
2 2
2 1
1 2
1 2
1 1
1 1
1 2
1 1
1 1
1 1
2 1
2 2
1 1
2 2
2 1
1 2
2 2
2 1
1 2
1 2
2 1
1 2
1 1
2 2
2 1
1 2
2 2
2 2
2 2
2 2
1 2
2 2
2 2
1 1
2 2
1 1
1 1
2 2
1 2
1 1
2 1
2 1
1 1
2 1
1 1
2 2
2 1
2 2
1 1
2 2
2 2
2 1
1 1
2 2
1 1
1 2
2 1
1 1
1 2
1 2
1 1
1 1
1 2
2 1
2 2
2 2
2 1
1 2
1 1
1 1
2 2
2 2
1 2
2 1
1 1
2 1
1 1
1 1
2 1
2 2
2 2
2 1
1 1
2 1
2 1
1 1
1 2
2 1
1 1
2 1
1 1
1 1
2 2
1 1
2 1
1 2
2 1
2 2
1 2
1 2
2 1
1 1
1 1
2 2
2 1
1 1
1 1
1 2
2 2
2 1
2 1
1 1
1 1
2 2
2 2
2 2
2 2
2 2
2 2
2 1
1 1
1 2
2 1
1 2
1 2
2 2
2 2
2 2
2 1
1 1
1 1
2 2
1 1
1 2
2 1
2 2
2 2
1 2
2 2
2 1
2 2
2 2
1 2
1 1
1 1
1 2
2 2
1 2
2 1
2 1
2 1
2 1
1 1
1 2
1 2
2 1
2 1
2 1
1 2
2 1
1 2
2 1
2 1
2 1
2 1
1 1
2 2
2 2
2 2
1 2
2 2
1 2
2 2
2 2
2 2
2 2
2 2
1 1
1 2
1 1
2 1
1 1
1 1
1 2
1 1
1 2
2 1
1 1
2 2
2 1
2 1
1 2
2 2
2 2
1 2
2 1
2 1
2 2
2 2
1 2
2 2
2 2
2 2
2 2
2 1
2 1
2 2
1 2
1 1
2 2
2 2
1 1
1 2
2 1
2 1
2 2
1 2
2 2
1 2
2 1
1 1
1 2
2 2
2 1
1 2
1 2
2 2
1 2
2 1
2 2
1 1
1 1
1 1
1 1
1 1
2 1
1 2
2 2
1 1
1 2
2 2
2 2
1 2
1 2
2 2
2 1
1 1
2 2
2 2
1 2
2 1
1 2
2 1
1 2
1 2
1 2
1 1
2 2
2 2
2 1
2 1
1 1
2 1
1 1
1 1
1 2
2 1
2 1
1 1
2 1
1 2
1 2
2 1
1 1
1 2
1 1
1 1
1 2
2 1
1 1
2 2
1 1
2 2
2 1
2 2
2 1
2 2
2 2
1 1
2 1
1 1
1 1
1 2
1 1
2 1
1 1
1 2
1 1
2 2
1 1
2 2
1 2
2 2
2 2
2 1
1 2
2 1
1 1
2 2
2 2
2 2
1 1
2 1
2 1
2 1
1 1
1 1
1 2
1 1
2 1
2 2
2 1
2 1
2 1
2 1
1 2
2 1
1 1
2 2
2 1
1 1
2 1
2 1
2 1
1 1
1 1
2 2
1 1
1 1
2 2
2 1
2 2
2 1
1 1
2 2
2 1
2 2
2 2
2 2
2 2
1 2
2 2
2 1
1 2
2 1
1 2
1 2
2 2
2 1
1 1
1 1
1 2
1 2
1 2
2 2
1 2
1 1
1 2
1 2
1 2
1 1
1 2
2 1
2 2
2 2
2 2
2 2
2 1
2 2
2 1
1 1
1 2
1 1
2 2
2 1
2 2
1 2
1 1
2 2
1 1
2 2
1 1
1 2
1 1
2 1
1 1
2 2
2 1
1 2
1 1
2 2
2 2
1 2
2 2
1 1
2 1
1 1
2 1
2 2
2 2
1 1
2 2
2 1
1 2
2 1
1 1
1 1
2 1
2 2
2 2
1 1
1 2
1 1
1 1
1 1
1 1
1 1
2 2
1 2
1 1
2 1
1 2
1 1
1 2
1 1
1 1
1 2
1 2
2 1
2 1
2 1
1 2
2 1
1 2
2 1
1 2
2 1
2 2
1 1
2 2
2 2
2 2
1 1
2 1
1 1
1 2
1 1
2 2
2 2
1 2
2 2
1 1
2 2
2 1
1 1
1 1
2 1
2 1
2 1
1 2
2 2
2 2
2 1
1 2
1 1
1 2
2 1
2 2
2 2
2 1
1 2
2 1
1 2
2 1
2 1
2 1
1 1
1 1
1 2
1 1
2 1
1 2
2 2
1 1
2 2
1 1
1 1
1 1
1 2
1 2
1 2
1 2
1 2
2 1
2 1
1 1
2 2
1 1
1 2
2 2
1 1
1 1
2 2
1 2
1 1
1 1
1 1
2 1
1 1
2 1
1 1
2 1
2 2
2 1
2 1
2 2
1 1
1 2
1 1
2 2
1 2
1 2
2 1
2 2
1 1
2 2
2 2
2 1
2 1
1 2
2 1
2 1
2 2
1 1
1 2
1 1
1 1
1 2
1 1
1 2
1 1
2 2
2 1
1 2
1 2
2 1
2 2
1 2
1 2
1 1
2 2
2 2
2 2
1 1
1 2
1 1
1 1
1 1
1 2
1 2
1 1
2 1
1 2
1 2
1 2
1 1
2 2
2 2
1 2
2 2
1 1
1 2
2 1
1 2
2 1
2 1
1 2
2 1
2 2
2 1
1 2
1 1
1 1
2 1
2 2
2 1
1 1
2 2
1 2
1 2
1 2
1 2
1 2
2 2
1 2
2 2
2 2
2 1
2 2
1 1
1 1
2 2
1 2
2 2
2 1
2 2
1 1
1 2
1 1
2 1
2 1
1 2
2 1
2 1
1 2
1 1
1 1
2 1
1 1
1 2
1 2
1 2
2 2
1 1
1 2
2 2
1 1
1 2
1 1
2 2
2 2
2 1
1 1
1 1
1 2
2 2
1 1
1 2
1 1
2 2
1 1
2 1
2 2
1 2
1 1
1 2
1 2
2 1
1 2
1 1
1 1
2 1
2 2
2 2
1 2
1 1
2 2
1 2
2 1
2 1
1 2
1 2
2 1
2 1
2 2
2 2
1 2
1 2
1 1
1 1
1 1
2 1
1 1
1 1
2 1
1 1
1 1
1 2
1 1
1 1
2 2
2 2
2 1
2 2
1 2
2 2
1 2
1 1
2 2
2 1
2 1
2 2
2 2
1 2
1 1
1 1
1 1
2 2
2 2
2 1
1 2
1 1
1 2
2 2
1 1
1 1
2 2
1 1
1 2
2 2
2 2
2 2
1 2
2 2
2 2
2 2
2 1
2 1
1 1
2 2
1 2
1 2
1 1
1 2
2 1
2 1
2 2
1 2
2 2
1 1
2 2
2 2
1 2
2 2
1 1
1 2
2 1
2 1
2 2
1 1
1 2
1 2
1 1
1 1
1 2
1 2
1 1
2 1
2 2
2 1
2 1
1 2
1 1
1 2
2 1
2 1
2 2
2 1
1 1
1 2
1 2
1 1
2 1
1 1
1 2
1 2
2 2
2 2
1 2
2 2
2 2
2 2
1 2
1 2
1 2
1 2
1 1
2 1
1 1
2 1
2 2
2 1
2 2
2 2
1 1
2 2
2 1
2 1
1 2
1 1
2 1
2 2
2 1
2 2
2 1
1 1
2 2
1 1
1 2
2 1
1 2
1 1
1 2
2 2
2 2
1 1
2 2
1 2
1 2
1 1
2 1
2 2
1 2
2 1
1 1
1 2
1 1
1 1
1 2
1 1
1 1
1 2
1 2
1 2
1 1
2 2
1 2
2 1
2 1
2 1
1 1
2 1
1 2
2 1
1 1
2 1
2 1
2 2
2 1
1 2
1 1
2 1
2 1
2 2
2 2
2 1
2 2
2 2
1 1
2 2
1 2
2 1
2 1
2 1
2 1
1 1
2 2
2 2
2 1
2 2
2 2
1 2
2 2
1 2
2 1
2 2
2 1
1 1
2 2
1 2
2 1
1 2
2 1
1 1
1 2
2 1
1 1
2 2
2 1
1 1
2 1
1 2
1 1
1 2
2 2
2 1
2 1
2 1
1 1
2 1
1 2
1 1
2 2
2 2
2 2
2 1
2 1
1 1
2 1
2 1
1 1
1 2
2 1
1 1
2 2
1 1
1 1
2 1
2 2
2 1
1 1
1 1
2 2
2 2
2 1
2 1
2 1
2 2
1 1
2 2
1 2
2 1
2 2
2 2
1 2
2 1
2 2
2 2
1 1
1 2
2 2
1 2
2 2
2 2
1 2
2 1
2 1
2 2
2 2
1 1
2 2
1 2
1 1
1 2
2 1
1 2
1 2
1 2
2 1
2 1
2 2
2 2
2 2
1 1
1 1
2 2
1 2
2 2
2 2
2 2
2 1
1 1
2 2
2 1
2 2
2 1
2 1
2 2
2 1
1 1
1 1
2 2
2 1
2 1
1 2
2 1
1 2
2 1
2 1
2 1
1 2
2 2
2 2
2 1
1 2
2 2
1 2
2 2
2 2
2 1
2 2
1 2
1 2
1 2
1 2
2 1
2 2
2 1
1 2
1 2
2 2
2 1
1 2
2 1
2 1
1 2
2 1
2 2
2 2
2 1
2 2
1 2
1 2
2 2
2 1
1 2
2 2
1 1
1 1
2 1
1 2
1 1
2 2
2 1
1 2
2 1
1 1
1 2
2 1
2 2
2 1
2 1
2 1
1 1
2 2
1 1
1 1
2 2
2 1
2 1
1 2
1 2
1 2
2 1
2 1
2 1
2 2
1 1
1 1
2 2
2 2
2 1
2 1
2 2
1 2
1 2
1 1
1 2
2 2
2 2
2 1
1 1
1 2
2 2
2 1
2 1
2 1
1 2
1 2
2 2
2 2
2 1
2 2
1 1
1 1
1 2
2 2
2 1
2 1
1 1
1 2
1 2
1 2
1 1
1 2
2 1
2 1
1 2
2 2
1 2
2 2
1 1
2 1
2 2
2 1
2 2
2 1
2 2
2 1
1 1
2 1
2 2
2 1
1 1
1 1
2 2
1 2
1 2
1 1
2 1
2 2
2 2
1 2
1 2
2 2
1 2
1 2
1 2
1 2
1 2
2 1
2 2
2 1
1 1
1 2
1 2
1 1
1 1
1 2
1 1
1 1
1 1
1 2
1 1
2 1
1 2
2 2
1 1
2 1
2 1
2 1
2 1
2 2
1 1
1 1
1 2
2 2
2 2
1 2
1 1
1 1
1 1
2 1
2 1
1 2
1 2
1 1
2 2
2 2
2 2
2 1
1 1
2 1
2 2
2 1
1 2
1 1
1 2
1 1
1 1
2 1
1 1
2 2
2 2
2 1
2 2
2 1
1 1
2 1
2 2
1 2
2 1
1 1
2 2
1 1
1 1
2 1
2 2
1 2
2 2
2 1
2 1
1 2
1 2
1 2
2 2
1 2
2 1
2 1
2 1
2 2
2 1
1 2
1 2
1 2
2 2
2 1
2 2
1 2
1 1
1 1
1 1
2 2
1 2
1 1
1 1
1 2
2 1
2 1
2 2
1 2
2 2
1 1
2 2
2 2
2 2
1 2
1 1
1 2
1 1
2 2
2 2
2 1
2 1
2 1
2 1
2 2
1 1
2 2
2 2
2 2
1 1
2 1
2 2
2 2
1 2
1 2
2 1
2 2
1 1
1 1
1 1
1 2
1 1
1 1
1 2
1 2
1 2
1 2
1 1
2 1
2 1
1 2
2 1
2 2
1 1
2 2
1 1
2 2
1 1
1 1
1 2
2 1
2 2
2 1
2 2
2 2
2 2
2 2
1 1
1 2
2 1
1 1
1 2
1 2
2 2
1 1
1 1
2 2
1 1
2 1
1 2
2 1
1 2
2 2
1 2
2 2
1 1
2 1
1 1
1 2
2 2
1 2
2 2
1 1
2 2
1 2
2 2
2 2
1 1
1 2
2 1
2 1
2 2
1 2
2 2
1 1
1 1
1 2
2 1
1 2
2 2
1 2
1 2
2 1
1 1
2 1
1 2
2 1
2 1
2 2
2 2
2 2
2 2
2 2
2 1
2 1
2 1
1 2
2 1
2 1
1 1
1 2
1 1
1 1
2 2
1 1
1 1
1 2
2 2
2 1
1 2
1 1
1 2
2 2
1 2
2 1
1 2
2 2
2 1
2 2
2 1
2 1
2 1
1 2
1 2
1 1
2 1
1 1
1 1
2 2
1 1
2 1
1 1
2 2
2 2
1 2
2 2
2 2
1 1
2 2
2 1
2 1
2 2
1 2
1 1
1 2
1 1
1 2
1 2
1 2
1 1
2 1
2 2
2 2
2 2
1 2
2 1
1 2
2 2
2 1
2 1
1 1
1 1
2 1
2 1
1 2
2 1
2 2
1 1
1 1
1 2
2 2
2 2
2 2
2 1
1 2
1 1
1 2
1 1
2 2
2 2
2 1
2 1
2 1
2 2
2 2
1 2
2 1
2 2
1 2
1 1
1 1
1 2
2 2
2 2
1 2
1 1
1 2
2 1
1 2
1 2
2 2
2 2
1 2
2 2
1 2
1 2
2 1
2 2
1 1
2 1
2 2
2 1
2 1
2 1
2 2
1 2
2 2
2 2
2 2
1 1
1 1
1 1
1 2
1 1
2 1
1 2
1 2
1 1
2 1
1 2
2 2
2 1
2 2
1 2
1 2
2 1
2 1
1 1
2 2
2 1
1 1
2 2
1 1
1 1
1 2
1 2
1 1
2 2
2 2
1 1
2 1
2 2
2 1
1 1
2 1
1 1
1 1
1 2
2 1
1 1
1 1
2 2
2 2
2 2
2 1
1 2
2 2
1 1
1 1
1 2
2 2
1 2
2 1
2 1
2 2
2 1
2 1
1 2
1 2
1 1
1 1
2 1
1 2
1 2
1 1
2 2
1 1
2 2
1 1
2 2
1 1
2 1
2 1
2 1
2 1
2 2
2 2
1 2
1 2
1 1
1 1
2 1
2 2
1 1
1 2
2 1
1 1
1 1
2 2
2 1
1 2
1 2
1 1
2 1
2 2
1 1
1 1
1 1
2 2
2 2
1 2
1 2
1 1
1 2
2 2
2 2
2 2
2 1
1 2
1 1
1 2
1 1
2 2
2 1
1 1
1 2
1 1
1 1
2 1
2 2
2 1
2 1
1 1
1 1
2 1
1 1
2 2
2 2
1 1
2 2
1 1
2 1
1 2
2 1
2 2
1 1
2 2
2 2
2 1
1 2
2 1
2 1
1 1
1 2
2 1
1 1
2 2
2 1
2 1
1 1
1 1
1 1
1 2
1 1
1 1
2 2
2 1
1 1
1 2
2 1
2 1
2 1
1 2
2 1
1 2
1 1
1 1
1 1
1 1
2 1
2 1
2 1
1 2
2 1
1 2
1 2
2 2
1 1
1 2
2 2
1 1
2 1
2 1
1 1
1 2
1 2
1 2
1 2
1 1
1 2
2 2
2 2
1 2
1 1
2 2
2 1
1 2
1 2
2 1
1 1
1 1
2 2
1 1
1 2
1 1
1 2
2 1
2 1
2 1
2 2
1 2
1 2
1 1
2 1
2 1
2 1
1 1
2 1
1 2
2 2
1 2
1 2
2 2
2 1
1 1
2 1
1 2
2 2
1 2
1 1
2 2
2 2
1 1
1 2
1 2
1 2
2 1
2 2
1 2
2 2
2 2
1 1
1 1
2 1
2 2
1 2
2 1
1 1
1 2
1 1
2 2
2 2
1 2
2 2
2 2
1 1
1 1
1 1
2 2
2 1
2 2
2 2
2 1
1 1
2 2
1 2
1 1
2 1
2 2
1 2
2 2
2 2
1 2
2 1
2 1
1 2
2 1
2 1
2 2
1 2
1 1
2 2
2 2
1 2
2 1
2 1
1 2
1 2
1 2
1 2
1 1
2 1
2 1
1 1
1 1
1 2
1 1
2 2
2 2
1 1
1 1
1 1
2 1
2 2
1 2
2 1
2 1
1 2
1 1
2 2
2 1
1 2
2 1
1 1
1 1
2 2
1 1
2 2
2 1
2 1
2 1
2 2
2 1
2 2
1 2
1 2
1 2
2 1
2 2
1 2
2 1
1 1
1 2
1 1
2 1
1 1
2 2
2 1
1 1
2 1
2 1
1 1
1 1
1 1
1 1
2 2
1 2
2 1
1 1
2 1
2 2
2 1
2 2
1 2
1 1
1 1
2 2
1 1
1 1
2 2
1 1
1 1
1 2
2 2
2 1
1 1
2 2
2 2
1 2
1 2
1 2
2 1
2 1
1 2
2 2
2 1
2 2
2 2
2 2
2 2
2 2
1 1
1 2
2 1
2 1
1 1
1 2
2 2
1 1
1 1
1 1
2 1
2 1
1 1
2 1
1 2
1 2
2 2
1 2
2 1
1 1
2 1
2 2
2 2
2 2
2 1
1 2
2 1
2 2
1 1
1 1
1 2
2 2
1 1
1 1
2 1
2 2
2 2
2 1
1 2
2 1
1 2
2 1
1 2
2 2
2 1
2 2
2 1
2 1
2 2
1 1
1 2
1 2
2 2
2 2
2 1
1 1
2 1
1 2
1 1
2 2
1 2
1 1
1 1
1 1
2 1
2 2
1 2
2 2
2 1
2 1
2 1
2 1
1 2
1 2
1 1
1 2
1 2
1 1
1 1
1 2
2 1
1 2
1 1
2 1
1 1
1 2
2 1
1 1
2 2
2 1
1 1
1 2
1 1
1 2
1 2
1 1
2 1
1 2
1 1
1 1
2 2
2 2
1 2
1 1
1 1
1 1
1 1
1 2
1 2
2 1
1 2
1 1
2 2
1 1
1 1
2 2
1 1
2 1
2 1
2 2
2 1
1 1
2 2
1 2
1 1
1 2
2 1
2 1
1 1
2 1
2 2
1 2
2 2
1 1
2 1
1 2
2 1
2 1
2 1
2 2
2 1
2 1
1 1
1 2
2 2
1 2
1 2
2 2
2 1
1 1
2 2
2 2
2 2
1 2
1 2
1 2
1 1
1 1
1 1
2 2
1 2
1 1
2 2
2 1
1 2
1 1
2 2
2 1
1 2
1 1
2 1
1 2
2 2
2 1
2 1
1 1
1 1
2 1
2 2
1 2
2 1
2 2
1 2
2 1
2 2
1 1
1 2
1 2
1 1
2 2
2 1
2 2
2 1
2 1
1 2
2 2
2 2
2 1
2 1
2 1
1 2
2 1
1 1
1 1
1 2
1 2
1 1
2 2
2 1
1 2
1 2
2 2
1 2
2 1
2 1
2 2
1 2
1 1
2 1
1 2
1 1
2 1
1 1
2 2
2 2
2 2
1 2
1 2
1 2
1 2
1 1
2 2
1 1
1 1
2 1
2 2
2 2
1 1
1 1
2 1
1 2
2 2
1 2
2 1
1 1
2 1
1 1
1 2
1 1
1 2
2 1
1 2
2 2
2 2
2 1
2 1
2 1
2 1
2 2
2 2
1 1
1 2
2 1
2 2
1 1
1 1
1 2
2 2
1 1
1 2
2 2
2 2
1 1
1 2
1 1
1 2
1 2
1 2
1 1
2 2
1 2
2 1
2 1
1 2
2 2
1 2
2 1
2 1
1 1
1 2
2 2
1 2
1 1
1 1
2 1
2 1
1 1
2 2
1 2
2 2
1 2
2 2
1 1
2 2
1 1
1 2
1 2
2 2
1 1
1 1
2 2
2 2
1 1
2 2
2 2
2 2
2 2
1 1
1 1
2 1
1 1
2 2
1 1
1 2
2 2
2 2
2 2
2 1
2 1
1 2
2 2
1 1
2 1
2 1
1 1
2 1
1 1
2 1
1 1
1 2
1 1
2 2
2 2
2 2
2 1
2 2
1 2
2 2
2 2
1 1
1 1
1 2
1 1
1 1
1 2
1 2
1 1
1 2
1 2
1 1
1 1
1 1
1 2
2 2
1 1
2 2
1 1
1 1
1 1
1 1
2 2
1 1
2 2
1 1
1 1
1 2
1 1
1 2
2 1
2 2
2 1
2 2
2 1
1 2
2 1
1 1
2 1
1 2
1 2
2 2
1 1
1 1
1 2
2 1
2 2
1 2
1 2
1 1
2 2
2 1
2 2
1 2
2 1
2 1
2 1
2 2
1 2
2 1
1 1
2 1
1 2
2 2
2 1
1 2
1 1
2 1
2 1
2 2
2 1
1 2
1 2
1 2
1 1
1 2
2 1
1 1
2 2
2 2
1 2
1 2
1 2
2 1
2 2
2 2
2 1
1 1
2 2
2 1
1 2
2 1
1 2
2 2
2 1
2 2
1 1
2 1
1 2
2 1
2 2
2 2
1 2
1 2
1 2
1 1
1 2
1 1
2 1
2 1
1 2
1 2
2 1
2 2
1 1
2 1
2 2
2 2
1 2
2 1
2 1
2 2
1 2
2 2
1 2
2 2
2 2
2 1
1 2
2 1
2 2
2 1
2 2
1 1
2 2
2 1
1 1
2 2
2 2
1 2
1 1
2 2
2 2
1 2
2 1
1 1
2 1
1 1
1 2
1 2
2 2
1 2
2 1
2 2
2 2
1 2
2 1
2 2
1 2
2 1
2 1
2 1
1 2
1 1
2 1
2 2
2 1
2 2
2 2
1 1
2 1
2 1
2 1
2 1
1 1
2 1
2 2
1 1
1 2
1 2
1 1
2 1
2 1
1 2
2 2
2 1
2 2
1 1
2 2
2 1
2 1
1 1
2 1
2 1
2 1
1 2
2 1
2 1
1 1
1 1
1 2
2 2
1 2
2 1
1 1
1 2
2 1
2 2
1 1
2 1
1 2
1 1
2 2
2 1
1 1
2 1
2 1
2 2
1 1
2 2
1 1
2 1
2 2
2 2
2 2
1 2
2 1
1 2
1 2
1 2
1 2
1 2
1 2
1 2
2 2
1 1
2 1
1 1
2 2
2 2
2 1
1 2
2 1
2 2
2 2
2 1
1 2
2 1
1 2
2 2
2 1
1 2
1 2
2 1
1 2
2 1
2 1
2 1
1 1
2 1
1 1
1 2
2 1
2 1
2 1
2 2
2 2
1 1
2 1
2 1
2 1
1 1
1 2
1 2
2 2
2 2
2 1
1 2
2 1
1 1
1 1
1 2
1 1
1 2
1 2
2 2
2 2
2 2
1 2
1 2
1 1
2 1
1 2
1 2
1 1
1 1
1 2
1 2
1 2
1 2
1 1
2 2
1 2
2 2
2 2
2 1
2 1
1 1
1 2
1 1
1 1
2 2
2 1
1 1
1 1
1 1
1 1
2 1
2 2
1 2
2 2
2 1
2 1
2 2
2 2
2 2
2 2
1 1
1 1
2 1
1 1
1 2
1 2
2 2
2 1
2 2
1 1
1 2
1 2
2 2
1 2
2 2
2 2
1 1
1 2
2 2
1 2
1 1
1 1
1 2
1 1
1 2
1 2
2 2
1 2
2 2
1 1
1 1
2 1
2 1
1 1
2 1
1 2
1 1
1 2
2 2
2 2
2 1
2 2
1 1
2 1
2 1
1 1
2 2
1 2
2 1
1 1
2 1
1 1
1 2
1 2
2 2
1 2
1 2
1 1
1 2
1 1
1 2
2 2
1 1
1 1
2 2
2 2
1 2
1 2
2 2
1 2
2 1
1 1
1 2
1 2
2 2
2 1
1 2
2 1
1 2
2 2
2 1
2 1
2 1
1 2
1 2
1 1
2 2
1 1
2 2
1 1
2 1
1 1
1 2
1 1
2 1
1 1
1 2
2 2
1 2
2 2
1 1
2 2
2 1
2 2
2 2
2 1
1 1
1 2
2 2
2 2
1 1
1 2
2 1
2 2
1 1
2 1
2 2
2 2
1 2
2 2
2 1
1 1
2 2
2 2
1 1
2 2
1 2
2 1
1 2
2 1
2 1
1 1
1 1
1 1
2 1
2 1
2 2
2 2
1 1
2 2
2 2
2 1
1 1
2 1
2 2
1 2
1 2
2 2
1 2
2 2
1 1
2 2
1 1
1 2
1 1
1 1
2 2
2 2
2 2
2 2
1 2
1 1
2 1
1 2
2 1
1 1
2 1
2 1
1 2
1 2
1 1
1 1
1 2
2 1
1 1
2 2
2 1
1 2
2 1
2 2
1 2
2 1
1 2
2 1
1 1
2 2
2 2
2 2
1 2
1 2
1 1
1 2
2 2
1 1
2 2
2 2
2 1
2 1
2 2
1 1
2 1
2 1
2 2
2 1
2 1
1 1
1 1
2 2
1 1
1 1
2 2
1 2
1 1
1 2
1 1
1 2
1 1
2 2
1 1
2 1
2 1
2 1
2 1
1 1
2 1
1 2
2 1
1 2
2 2
2 1
2 2
2 1
2 2
1 1
2 2
1 2
1 2
2 2
1 2
1 2
1 1
2 2
2 1
2 2
1 1
2 2
2 2
1 1
2 2
1 1
2 1
1 2
1 1
2 2
2 1
1 2
2 1
1 2
1 2
2 1
1 1
1 1
1 1
2 2
1 1
1 1
1 2
1 2
2 2
2 2
1 1
2 2
2 2
1 1
1 1
2 1
2 2
2 2
2 2
1 2
2 2
2 2
1 2
2 2
2 2
1 1
1 2
1 1
2 1
1 1
2 2
1 1
1 1
1 2
1 2
2 2
2 2
2 1
2 2
1 1
2 1
1 2
2 1
2 2
2 1
2 1
1 2
1 1
2 1
1 1
1 2
1 1
2 1
2 2
1 2
2 2
2 1
1 2
1 1
2 1
1 1
1 1
1 1
1 2
2 1
2 1
2 2
1 1
1 1
2 2
2 1
2 1
1 2
2 1
2 2
2 2
1 1
1 2
1 2
2 2
2 2
2 1
2 2
2 1
2 2
1 1
1 2
1 2
1 2
2 2
2 2
2 1
1 1
1 2
1 2
1 2
1 2
1 1
1 2
2 2
2 1
1 1
1 2
1 1
2 2
2 1
1 2
1 1
2 2
1 1
2 2
2 2
2 2
1 2
2 1
1 2
1 2
2 2
2 1
1 1
2 2
1 1
1 2
2 2
2 1
1 1
1 2
2 1
1 2
2 1
1 2
2 1
1 1
2 2
1 1
1 1
1 1
2 1
1 2
2 1
2 2
1 2
2 1
2 2
2 1
1 2
1 2
1 1
1 1
1 2
2 1
2 1
2 2
1 1
2 1
1 1
1 2
1 2
2 1
1 2
1 1
2 2
1 1
2 1
1 2
1 2
1 2
1 1
1 1
2 2
2 1
2 2
2 2
2 1
2 1
1 2
1 1
2 1
2 2
2 1
1 1
1 2
1 1
1 2
1 1
1 2
1 2
2 2
1 2
2 2
1 1
1 2
2 2
2 2
1 1
1 2
1 1
1 2
2 1
1 2
2 2
2 1
1 2
2 2
1 2
1 1
2 1
1 2
2 1
1 2
2 1
1 1
2 1
1 2
1 2
2 1
1 2
2 2
1 2
1 1
1 2
2 1
1 2
2 1
1 2
1 2
2 1
1 1
1 2
2 2
1 2
2 2
1 1
1 2
2 1
1 1
1 2
2 1
1 1
2 1
1 2
1 1
1 1
1 2
1 1
1 1
2 1
2 2
1 1
1 1
2 1
1 2
2 2
2 2
2 2
1 1
2 2
2 1
2 1
1 1
2 2
2 1
1 2
1 1
2 1
2 2
2 2
1 2
2 1
1 2
1 1
2 1
2 2
2 2
2 2
1 1
2 2
1 1
1 1
2 2
1 1
1 1
1 2
1 2
2 1
2 1
1 1
1 2
1 2
2 2
2 1
1 1
2 1
2 2
1 2
2 2
2 2
1 2
2 1
1 1
1 2
1 1
2 1
2 1
2 2
1 1
2 1
2 1
2 1
1 2
2 1
1 2
1 1
2 1
1 1
2 1
1 1
1 2
1 2
1 1
1 2
2 1
2 1
2 2
1 2
2 2
2 1
1 2
2 2
1 2
1 1
2 1
1 2
1 2
1 1
2 2
2 2
1 2
1 2
1 1
2 1
1 2
2 1
1 2
1 2
1 1
2 2
2 2
2 2
2 2
2 1
2 2
1 1
1 1
2 2
1 1
1 1
1 2
1 2
1 2
2 2
2 1
2 2
2 1
2 2
2 1
2 2
2 2
2 1
2 2
2 2
2 2
1 1
2 2
1 2
2 1
2 1
1 2
2 1
1 1
1 2
1 2
2 2
2 1
2 1
2 1
1 2
2 2
1 1
1 2
2 1
2 2
1 2
1 2
1 2
1 2
1 1
1 1
2 1
2 1
1 2
1 1
1 2
2 2
2 2
2 1
1 1
1 1
1 1
1 1
1 2
1 2
2 1
1 2
2 2
2 2
2 1
2 2
2 2
1 1
1 2
1 2
1 2
2 2
2 2
1 2
2 2
1 2
2 1
1 2
1 1
1 1
2 1
1 2
2 1
1 1
2 1
2 2
2 2
2 1
2 2
2 2
1 2
2 1
1 1
2 2
2 1
1 2
1 1
1 2
2 1
1 1
2 2
2 2
1 2
1 2
2 1
2 2
2 1
2 1
1 1
2 1
1 2
2 1
2 1
1 2
2 2
2 1
1 1
2 1
2 1
1 2
2 2
2 2
1 2
2 1
1 2
2 2
2 2
2 2
1 1
1 2
2 2
1 2
1 2
1 2
2 2
2 2
1 2
1 2
1 2
2 1
1 2
1 2
2 2
1 2
2 2
1 2
2 2
1 1
2 1
1 2
2 1
1 1
1 2
2 1
1 1
2 2
1 1
1 1
1 1
2 2
2 2
2 1
2 1
2 1
1 1
2 2
2 1
2 2
2 2
1 1
1 2
1 1
1 2
1 2
1 1
2 1
1 2
1 1
1 1
2 2
1 1
2 1
2 1
2 1
2 1
1 2
1 2
1 1
2 1
1 1
2 2
2 2
2 1
2 1
1 2
1 1
2 2
2 1
1 1
2 2
2 1
1 2
1 2
1 1
1 2
1 2
1 1
2 2
1 2
1 1
2 1
2 1
2 2
1 1
1 1
1 2
1 1
1 1
2 1
1 2
2 1
1 1
2 2
2 1
1 1
1 1
1 1
1 1
1 1
2 2
1 1
1 2
2 1
1 1
1 2
2 1
2 1
1 2
2 1
1 1
1 2
2 1
1 2
1 1
1 2
2 1
2 2
1 1
2 1
2 2
2 2
1 2
2 2
2 2
1 1
2 2
1 1
2 2
2 1
1 2
2 2
2 1
2 1
2 1
2 2
1 1
2 2
1 2
2 2
2 1
1 1
1 1
1 2
2 2
1 2
1 2
2 1
2 1
2 1
1 1
2 2
2 2
1 1
2 2
1 1
2 2
1 1
1 2
1 2
2 1
2 1
2 2
1 2
1 2
1 2
2 2
1 1
1 2
1 2
1 2
1 1
2 1
2 1
2 2
2 2
2 1
2 2
1 1
2 1
2 1
2 2
2 1
2 2
1 1
1 2
1 2
1 2
1 2
1 1
1 1
2 1
1 2
1 2
2 1
1 1
2 1
2 2
1 2
1 2
2 1
2 2
2 1
2 1
2 2
1 1
2 1
2 2
1 2
1 1
2 2
1 1
2 2
2 2
1 2
2 2
1 2
1 2
1 1
2 1
1 1
1 2
2 1
1 2
1 1
1 1
1 1
2 1
1 2
2 2
2 2
2 1
1 1
2 2
1 2
1 2
2 1
1 2
2 2
2 2
1 1
2 1
2 2
2 1
1 1
2 2
1 2
1 2
2 2
2 2
1 1
1 2
2 2
2 1
2 1
1 1
2 1
2 1
1 2
2 2
1 2
2 2
2 2
2 2
2 2
2 1
2 2
1 1
1 1
2 2
2 1
1 1
2 1
2 2
1 1
2 2
1 2
2 1
1 2
2 1
1 1
1 1
1 1
2 2
1 2
1 2
2 1
1 1
2 1
2 1
2 1
2 1
1 1
1 1
2 1
1 1
2 1
2 1
2 2
1 1
2 1
2 1
1 2
1 2
2 2
2 2
2 1
2 2
1 1
1 2
2 2
1 1
1 1
1 1
1 2
2 2
1 2
1 1
1 1
1 1
1 1
2 2
1 2
2 1
1 2
1 1
2 1
2 2
1 2
2 1
1 1
2 1
2 2
1 2
2 2
2 2
1 2
1 1
2 2
2 2
2 2
2 1
2 1
2 2
1 2
1 1
1 2
1 2
2 1
1 2
1 1
1 2
2 1
2 2
1 1
1 1
1 2
2 2
2 2
2 1
1 1
2 1
1 2
1 1
1 2
1 2
1 2
1 1
1 2
2 2
2 2
1 2
2 2
2 1
2 2
2 1
1 1
2 2
2 2
1 1
2 2
2 1
2 1
2 1
2 2
2 1
1 1
2 2
1 1
1 2
1 2
2 1
1 1
2 2
1 1
2 1
2 1
1 2
2 2
2 1
1 1
2 1
2 1
2 1
2 1
2 2
1 2
2 2
1 2
2 2
2 1
1 2
1 2
1 1
2 2
2 2
1 1
1 1
1 1
2 1
2 2
1 2
1 1
1 2
1 2
2 2
1 1
1 2
1 2
2 2
2 1
2 2
1 2
2 2
1 1
1 2
1 1
1 1
1 1
1 1
1 1
2 1
1 1
1 1
2 2
1 2
1 1
2 2
2 2
2 1
1 2
2 1
1 2
2 2
1 2
1 1
1 1
2 1
1 1
1 1
1 2
1 2
2 1
2 2
1 1
2 2
1 1
2 2
1 2
2 2
2 1
1 1
1 1
1 2
1 1
2 2
2 2
1 1
2 2
2 1
2 2
1 1
1 1
1 2
2 1
1 1
1 2
2 2
2 1
2 1
1 1
1 2
2 2
2 2
2 1
1 2
2 2
1 1
2 2
1 2
1 2
2 1
1 2
2 1
2 1
1 1
2 1
1 1
2 1
1 1
2 2
2 1
1 1
2 1
2 1
1 1
2 1
1 2
1 2
2 1
2 1
2 1
1 1
2 2
2 1
2 1
2 1
1 1
2 1
2 1
1 2
1 1
2 1
1 2
1 1
1 2
2 2
1 2
2 1
1 1
2 1
2 2
1 1
2 1
2 1
1 1
1 1
1 1
1 1
1 2
1 2
1 1
1 1
2 1
2 2
2 2
2 2
2 1
2 1
1 1
1 1
2 1
2 1
1 2
1 2
1 2
1 1
2 2
2 2
1 1
2 1
1 2
1 2
1 1
1 1
1 1
1 1
1 2
2 2
1 1
2 1
2 1
2 2
2 2
1 1
2 2
1 1
1 1
1 1
2 2
1 2
1 2
2 2
2 1
1 1
1 1
2 2
1 2
1 1
1 1
1 2
2 2
1 2
1 2
1 2
2 1
1 1
1 2
1 2
1 1
1 2
1 1
2 2
1 2
1 2
1 2
2 1
2 2
1 2
2 2
2 2
2 2
2 2
1 2
1 2
1 2
2 2
2 2
1 1
2 2
2 1
2 1
2 2
2 1
1 1
1 2
1 2
1 1
1 2
2 1
1 1
1 2
1 1
1 2
2 2
2 1
2 2
2 2
2 1
2 2
2 2
1 2
1 2
2 2
2 2
2 1
1 2
1 2
1 2
2 1
2 1
2 2
1 2
2 1
2 1
2 2
1 1
1 2
2 2
1 1
2 1
1 2
2 2
2 1
2 1
1 1
2 1
1 2
1 2
1 1
2 1
1 1
1 1
1 2
1 1
1 2
2 1
1 2
1 1
1 2
1 2
1 2
2 1
2 1
1 2
2 1
2 1
2 1
2 1
2 2
1 1
1 2
2 1
2 2
1 1
1 2
2 2
1 1
2 1
2 1
1 1
1 1
1 2
2 1
1 2
2 1
2 2
2 2
1 2
2 2
1 2
2 2
1 2
1 1
1 2
1 2
2 2
1 2
1 1
2 2
1 1
1 2
1 2
1 1
2 1
1 2
2 1
1 2
1 1
2 1
2 1
1 1
1 1
1 2
2 1
2 2
2 1
1 1
1 2
2 1
1 2
1 2
1 2
1 1
1 2
2 1
1 1
1 1
2 2
2 2
1 1
1 1
2 1
2 2
2 1
2 1
1 2
1 2
1 1
1 2
2 1
2 2
2 1
2 2
1 2
2 1
1 2
2 2
2 1
1 1
1 2
1 2
1 1
1 1
2 2
2 2
1 2
1 1
1 1
2 1
1 1
1 2
2 2
2 2
1 2
2 2
2 1
2 2
1 2
1 1
1 2
2 2
1 2
1 1
2 1
2 1
1 2
2 1
1 1
1 2
1 2
2 2
1 2
2 1
1 1
1 1
2 1
2 1
2 1
1 2
2 1
2 2
2 1
1 2
2 1
1 2
1 2
2 2
2 2
2 2
1 1
2 1
1 2
1 2
1 2
2 1
2 2
2 1
1 2
1 2
2 2
2 2
1 2
2 2
1 1
2 2
2 2
2 2
2 1
1 1
1 2
1 2
2 2
1 1
2 2
1 2
2 2
2 2
2 2
1 1
1 1
1 1
2 1
1 2
1 2
1 2
1 1
1 1
2 2
2 1
2 2
1 1
1 2
1 2
2 1
1 1
2 2
2 1
1 2
1 2
2 1
2 1
1 1
2 2
1 2
1 1
2 1
2 1
1 2
1 1
2 2
2 1
2 2
2 2
1 1
1 1
2 1
2 2
2 2
1 1
1 2
1 1
2 2
2 2
2 1
2 2
1 2
2 2
1 2
1 2
1 1
2 2
2 2
2 1
2 2
1 2
1 2
2 1
1 1
1 1
2 2
1 2
1 1
2 2
1 1
2 2
2 1
1 2
1 1
1 2
1 2
2 2
1 1
2 2
2 2
1 2
1 1
2 1
1 1
2 1
1 2
2 1
2 2
1 2
2 2
1 2
1 1
1 1
2 2
1 2
1 1
1 2
1 2
2 1
1 1
2 2
1 2
1 1
1 2
1 2
2 2
2 2
1 2
2 2
1 2
2 1
1 2
2 2
2 1
1 2
2 1
2 1
1 2
2 2
1 1
2 1
2 2
1 1
1 1
2 2
2 2
1 1
2 1
2 1
2 1
2 2
1 2
1 2
2 2
1 1
2 1
2 1
2 2
2 2
2 2
2 2
2 2
1 1
1 2
1 1
1 1
2 1
2 1
2 1
2 1
1 2
1 2
2 2
1 1
1 1
2 2
1 1
2 2
1 1
2 2
2 1
2 2
1 2
1 2
1 2
2 2
1 2
1 2
2 1
2 2
2 2
2 2
2 1
2 1
2 1
1 2
1 2
2 2
2 2
1 1
2 1
2 1
2 2
1 1
1 2
2 1
2 1
1 1
1 2
1 2
1 1
2 2
2 1
2 2
1 2
1 2
2 1
1 1
2 2
1 1
1 1
1 2
2 2
2 1
1 1
2 1
2 1
2 2
2 2
2 2
1 2
1 2
1 1
1 1
1 2
1 1
2 2
1 2
2 1
1 1
1 2
1 1
1 1
1 1
1 1
1 1
2 2
2 2
2 1
1 2
1 2
1 1
2 2
1 1
1 1
2 1
1 1
1 2
1 1
1 1
2 2
2 2
2 2
2 2
2 2
2 2
1 1
2 2
2 1
1 2
2 1
2 2
2 1
1 1
2 2
1 1
1 2
2 2
1 1
1 1
1 2
2 1
2 2
2 2
2 2
2 1
2 2
2 2
1 1
1 2
1 1
1 1
2 2
1 1
1 2
2 1
2 2
1 1
1 2
1 1
1 1
2 2
2 2
2 1
1 2
1 2
1 1
2 1
2 2
1 1
2 2
2 2
1 1
2 2
1 2
2 2
2 2
2 1
2 1
1 1
2 1
1 2
2 1
2 2
1 1
2 2
2 1
1 2
2 1
1 2
2 2
2 1
1 1
1 1
2 2
1 2
1 1
1 1
1 1
2 2
1 2
1 1
2 1
1 2
2 2
2 2
2 2
1 2
1 2
2 2
2 1
1 1
2 2
2 2
1 2
2 2
2 1
1 1
1 1
1 1
2 2
1 1
2 2
1 1
2 2
1 2
1 1
1 2
2 2
2 1
2 2
1 1
2 2
2 2
1 1
1 1
1 2
2 2
2 1
1 2
1 2
1 2
1 1
2 1
1 1
2 1
1 1
1 1
2 1
1 1
1 2
2 1
1 1
2 1
2 2
2 2
2 2
2 2
2 1
2 2
2 2
1 2
2 1
2 1
1 2
1 1
2 2
1 2
1 1
2 1
1 2
2 1
2 1
1 2
2 2
1 2
2 1
1 1
2 1
2 1
1 1
1 2
1 1
1 2
2 2
1 1
1 1
2 2
1 1
1 1
1 1
1 1
2 1
2 2
1 2
1 2
2 2
1 2
1 2
2 2
2 2
2 2
1 2
1 1
1 2
2 1
2 2
2 2
2 1
1 2
2 1
2 2
1 1
2 2
1 1
1 1
1 2
1 1
2 2
1 1
1 1
1 1
2 2
1 1
1 1
1 2
2 2
2 2
2 1
2 1
1 1
2 1
1 2
1 2
1 2
1 2
2 2
1 1
1 2
2 2
2 2
2 1
1 2
1 2
2 2
1 2
1 1
1 1
2 2
1 1
2 1
1 1
1 1
2 2
1 1
2 2
1 2
2 2
1 1
1 1
1 2
2 1
1 1
2 1
2 2
2 1
2 2
2 1
2 1
1 1
1 2
1 2
2 2
2 2
2 2
2 1
2 1
2 1
1 2
2 2
1 1
2 2
2 2
2 2
1 2
1 2
1 2
1 2
1 1
2 1
2 2
1 1
2 1
2 1
2 1
1 1
2 2
2 2
1 1
2 1
2 2
2 1
1 2
2 2
2 1
1 2
1 1
2 2
2 1
1 1
2 2
2 2
2 1
1 2
1 2
1 2
1 2
2 1
2 1
2 2
1 2
2 1
2 1
2 1
1 1
2 1
2 2
1 2
1 1
2 1
2 2
2 1
2 2
1 2
2 1
2 2
2 1
1 1
2 1
2 2
2 2
1 1
1 1
2 2
1 2
2 2
1 1
1 1
1 1
2 2
2 1
1 2
1 1
2 2
1 1
1 2
1 1
2 1
2 1
1 1
1 1
2 1
2 1
1 2
2 1
1 1
2 1
2 2
2 1
1 2
2 2
1 1
1 2
2 2
2 1
1 2
1 1
2 2
1 2
1 1
2 1
2 1
1 2
1 1
2 1
1 2
1 1
2 1
2 2
1 1
2 1
2 1
1 1
1 2
2 1
2 2
1 1
1 2
2 2
2 2
1 2
1 1
2 2
1 1
1 2
1 1
2 1
2 2
1 1
1 2
1 2
2 1
1 1
2 1
1 1
2 1
2 1
2 1
2 2
1 1
1 1
1 1
1 1
2 2
2 2
1 2
1 2
2 2
1 2
1 1
1 2
1 1
1 2
1 1
1 2
2 2
2 1
1 1
2 2
1 2
2 2
1 1
2 1
2 2
2 1
1 1
1 2
2 2
1 1
2 1
1 2
1 1
1 2
1 2
2 2
2 2
2 2
2 1
1 1
2 1
2 2
2 2
1 2
1 2
1 1
1 1
2 1
2 1
2 1
2 2
1 1
1 2
2 1
1 1
1 1
2 1
2 2
1 1
1 1
2 1
1 1
1 1
2 2
1 2
2 2
1 1
1 1
2 2
1 2
1 2
1 2
2 1
2 2
2 2
1 2
2 2
1 1
1 2
2 2
2 1
2 1
2 2
1 1
1 2
1 1
1 2
2 2
2 1
2 1
1 1
2 2
1 1
2 1
1 1
2 2
2 1
2 2
1 1
1 2
1 2
1 1
2 1
2 2
2 1
2 2
1 1
1 1
1 1
1 2
2 1
1 1
1 2
1 2
2 2
1 2
2 2
2 2
1 1
1 1
1 1
1 1
2 1
1 2
2 1
2 1
2 1
1 1
2 2
1 2
1 2
2 1
1 2
2 1
2 1
2 1
2 1
2 1
2 2
2 2
2 1
2 1
1 2
1 1
1 2
2 1
2 2
2 1
2 1
2 1
2 2
2 1
1 1
1 1
2 2
1 1
2 1
2 2
1 2
1 1
1 2
1 1
2 1
2 1
2 1
2 2
1 1
1 2
2 1
2 2
1 1
1 1
1 1
2 1
1 1
1 2
1 2
1 2
2 1
2 1
1 1
1 1
2 2
2 2
1 1
1 1
1 1
2 2
1 2
1 2
1 1
2 1
1 1
1 1
2 2
2 1
1 1
2 1
1 2
1 2
1 2
1 1
1 1
1 2
2 1
1 1
1 2
1 2
1 1
1 2
1 1
2 2
1 1
1 1
1 1
1 1
2 2
1 1
1 2
2 2
2 2
1 1
2 2
2 2
1 2
1 1
2 1
2 1
1 2
2 1
2 1
1 2
2 1
1 1
2 1
2 2
2 1
1 1
2 2
2 2
2 2
1 1
1 2
1 2
1 2
2 1
1 1
1 2
2 2
1 2
1 1
2 2
1 2
1 2
1 2
1 1
1 1
1 2
1 2
1 1
1 1
2 1
1 1
2 2
1 1
1 2
2 2
2 2
1 2
2 1
2 1
2 2
2 2
2 1
1 1
2 1
2 1
1 2
2 2
2 1
1 1
1 2
2 2
2 2
1 1
1 2
2 2
1 1
1 1
1 2
2 2
1 1
1 1
2 1
2 2
2 1
1 1
1 1
2 2
1 1
2 2
2 1
1 1
1 2
1 2
1 2
1 1
1 1
1 2
1 1
1 2
1 1
1 1
2 1
2 2
1 1
2 2
2 1
1 1
2 2
1 1
1 2
1 1
2 2
1 2
2 2
1 1
2 1
1 1
2 2
2 2
1 1
1 2
2 2
1 2
1 2
2 2
2 1
1 1
1 1
1 1
2 2
2 2
2 2
2 1
2 2
1 2
2 1
1 1
1 1
2 1
1 1
1 2
1 2
2 2
1 1
1 1
2 1
2 2
1 2
1 1
1 1
2 1
2 1
2 2
1 2
2 2
2 2
1 1
1 1
1 2
1 1
1 2
1 2
1 1
1 2
1 1
2 2
1 1
1 1
2 2
1 1
2 2
1 2
1 2
2 1
2 2
1 1
2 2
1 2
1 2
1 2
1 2
2 2
1 1
1 2
1 2
1 2
1 1
2 2
1 2
2 1
1 1
2 2
1 2
1 2
2 1
2 2
2 1
1 1
2 2
2 2
1 2
1 2
2 2
1 2
2 1
2 1
2 2
2 2
2 2
2 2
2 1
1 1
2 1
1 1
2 2
1 2
1 2
2 1
2 1
2 2
1 2
2 2
1 2
2 2
1 2
1 2
2 1
1 1
2 1
2 2
1 2
2 1
1 1
2 2
1 1
1 1
2 1
1 2
1 1
2 2
1 1
1 2
2 1
2 2
1 1
1 2
1 1
2 2
2 1
2 1
2 1
2 2
1 1
1 1
2 1
1 2
2 1
2 1
2 2
2 2
1 2
1 2
1 1
2 1
1 2
2 2
2 2
2 1
1 2
1 1
2 2
1 2
1 1
1 1
1 1
2 1
1 1
2 1
1 1
2 2
2 1
1 1
1 2
2 2
1 1
1 2
2 2
2 2
2 2
2 2
2 2
2 1
2 1
1 1
2 1
2 2
1 2
1 1
2 2
2 1
2 1
1 2
2 2
2 1
1 1
1 2
1 1
1 1
2 1
2 1
1 1
1 2
2 1
1 2
2 1
1 2
1 2
1 2
1 1
1 2
2 2
2 2
2 2
2 2
2 2
1 1
1 1
1 1
2 2
2 2
1 1
2 1
1 1
2 2
2 1
2 2
1 2
2 2
1 1
1 1
2 1
2 2
2 2
1 1
2 1
2 2
2 2
2 1
1 1
1 2
1 2
1 1
1 2
1 1
2 2
2 2
2 1
1 2
1 2
1 1
2 2
1 1
2 1
1 1
2 1
2 2
1 1
1 1
1 1
1 2
1 2
2 2
1 1
1 2
2 2
2 2
1 1
1 2
2 2
1 1
1 2
2 2
2 1
2 1
1 1
2 1
2 1
2 1
1 1
2 2
1 1
2 1
2 1
2 2
2 2
1 2
2 1
2 2
2 2
2 1
2 1
2 1
1 1
1 2
2 2
2 2
1 2
1 2
1 2
1 2
2 1
1 1
1 1
1 2
2 1
2 1
2 2
2 2
1 2
1 1
2 1
1 1
1 2
2 1
2 1
2 1
1 2
2 2
1 2
1 1
2 1
1 2
1 1
1 1
2 1
1 1
2 2
2 1
2 2
2 1
2 1
2 1
2 1
2 1
1 1
2 2
2 1
1 1
1 2
2 2
1 2
2 2
1 2
2 1
1 1
2 1
1 2
2 2
2 1
2 2
1 2
1 1
2 1
2 1
2 1
1 1
1 2
2 1
2 1
1 2
2 2
1 1
1 2
1 2
2 1
2 1
1 1
2 1
1 1
2 2
2 2
2 1
1 2
2 1
1 2
2 1
2 1
1 2
2 2
1 1
1 2
1 2
2 2
2 1
2 2
2 1
2 2
2 2
1 2
2 2
2 2
1 2
1 2
2 1
2 1
2 2
1 1
2 2
2 1
1 1
2 2
2 1
2 2
1 1
2 2
1 2
1 2
1 1
1 1
2 2
2 1
1 2
1 1
2 1
1 2
2 1
2 1
2 1
1 1
2 2
2 1
2 1
2 1
1 1
2 1
1 2
1 2
1 2
1 2
2 1
1 1
2 1
2 1
2 2
2 1
2 1
1 2
1 1
2 2
2 2
1 1
1 1
2 1
2 2
1 2
1 2
2 2
1 2
2 1
2 2
1 2
2 1
2 1
1 2
2 1
2 1
2 2
1 1
2 1
1 1
2 2
2 2
2 1
1 1
1 1
1 2
1 2
2 1
2 1
2 2
1 2
1 1
2 1
1 2
1 2
2 2
2 2
2 2
1 1
2 1
2 2
1 2
1 1
2 1
1 1
2 1
2 2
1 2
1 1
2 1
1 1
2 2
1 1
2 1
2 2
1 2
1 2
2 2
1 2
2 2
2 2
1 2
1 1
1 1
2 1
2 1
2 2
1 1
1 2
1 2
2 1
1 2
2 2
1 2
1 2
1 1
2 1
2 2
2 1
1 2
2 2
1 2
2 2
1 2
2 2
2 2
2 2
2 2
2 2
2 2
1 1
1 2
2 2
1 1
1 1
2 1
2 2
2 1
1 1
2 1
1 1
1 2
2 2
1 2
2 1
2 2
1 2
1 1
2 2
1 1
2 1
2 2
1 1
1 2
2 2
2 1
1 2
2 1
2 1
2 1
1 2
2 1
1 2
2 2
2 2
2 2
1 1
2 2
1 1
1 1
1 1
2 1
2 1
1 1
1 1
1 1
2 1
1 1
2 2
1 2
1 2
1 2
1 1
1 2
1 1
1 1
1 2
1 1
1 2
2 2
2 1
2 1
1 1
1 2
1 1
2 1
1 1
2 1
1 1
2 1
1 1
1 2
1 1
1 1
2 1
1 1
1 2
1 1
1 2
1 1
2 2
2 1
2 2
2 1
2 2
2 1
1 1
2 2
1 2
2 2
2 1
2 1
1 2
2 1
2 2
2 2
2 2
2 1
1 2
2 2
1 1
2 2
2 1
1 2
1 2
2 1
2 1
2 1
2 2
1 1
2 1
2 1
2 2
2 1
1 2
2 1
2 2
1 2
2 2
2 2
2 1
1 1
2 2
1 2
2 1
2 1
1 1
1 2
1 2
2 2
2 2
2 2
1 1
1 1
2 1
2 1
2 2
2 1
1 2
1 1
1 2
1 1
2 2
1 2
1 1
2 2
1 1
2 1
1 1
2 1
1 2
1 1
1 1
2 1
2 1
1 2
2 1
1 2
1 1
2 2
2 2
1 2
1 2
2 1
2 1
2 2
1 2
2 1
2 1
1 2
2 1
2 2
1 1
1 1
1 1
2 2
1 1
2 1
2 1
1 2
1 1
2 2
2 2
1 1
1 1
2 2
2 1
1 1
1 2
1 2
2 2
2 2
2 2
1 1
1 2
1 2
2 2
1 2
2 1
1 2
2 2
1 1
1 2
1 2
1 2
1 2
1 1
2 2
1 2
2 2
1 2
2 1
2 1
1 2
1 2
2 1
1 1
2 2
1 1
1 2
1 1
2 1
1 1
1 2
1 1
2 2
2 2
1 1
2 2
1 1
1 2
1 2
1 2
2 2
2 1
1 2
1 2
2 1
2 2
1 2
1 2
1 1
1 1
2 2
1 1
2 2
2 1
2 1
2 2
2 1
1 1
1 2
1 2
2 2
1 2
1 2
2 1
1 1
1 2
2 2
2 2
2 1
1 1
2 1
1 2
1 1
2 1
1 1
1 2
1 1
2 1
1 2
1 2
1 2
1 2
2 2
1 1
2 1
2 1
1 2
2 2
1 1
1 2
1 1
1 1
1 2
2 1
2 2
2 2
2 2
2 2
2 1
1 1
1 2
2 1
2 2
1 2
1 2
2 2
2 2
2 1
2 1
2 1
1 2
1 2
2 1
1 1
1 2
2 1
1 1
1 1
2 1
2 2
2 1
2 1
2 1
2 2
2 1
2 2
2 2
1 1
1 2
2 2
1 1
1 2
1 1
2 2
2 2
2 1
1 2
2 2
2 1
1 2
1 1
2 2
2 1
1 1
2 2
1 1
1 2
1 1
1 1
1 2
1 2
2 2
2 2
1 2
2 2
2 1
2 2
1 2
2 1
1 2
1 1
1 2
2 2
2 1
2 2
1 1
1 1
2 1
2 2
2 1
1 2
2 2
2 2
1 2
1 2
1 1
1 2
1 1
2 2
1 1
2 2
1 2
2 1
1 2
2 2
2 1
1 1
2 2
2 2
2 2
2 2
2 1
2 2
1 1
2 2
2 2
1 2
2 1
2 2
1 2
2 2
1 1
1 2
1 2
1 2
1 1
1 2
2 1
2 1
1 2
1 2
1 1
2 1
1 1
1 1
1 1
1 1
2 2
1 2
2 2
2 1
2 2
1 2
1 1
2 2
1 2
2 2
1 2
2 2
1 1
1 1
1 2
2 2
1 1
2 2
2 2
1 2
2 1
1 2
2 1
1 1
1 2
2 2
1 1
2 1
2 2
1 1
2 2
2 2
2 2
2 1
1 1
2 2
2 2
1 2
2 1
2 2
2 2
2 2
1 2
2 1
2 2
1 2
2 1
1 2
1 2
2 1
2 2
2 1
1 2
2 2
2 1
2 2
2 2
1 1
1 2
1 1
1 1
1 2
1 2
1 1
2 2
1 1
1 2
2 1
1 2
1 2
1 1
2 1
2 1
1 2
2 1
2 1
1 2
2 2
2 1
1 1
2 2
1 1
1 1
2 1
2 2
1 1
1 1
2 1
2 2
1 1
1 2
1 2
1 2
1 2
2 2
1 2
2 2
1 1
1 2
2 1
2 2
1 1
1 2
2 2
2 1
1 2
2 1
1 2
2 1
1 2
2 2
2 2
1 2
1 1
1 2
1 1
1 1
1 1
1 1
1 1
1 1
1 2
1 1
1 2
2 2
1 1
2 1
2 2
1 2
2 1
2 1
2 2
1 2
1 2
1 1
1 2
2 2
2 2
1 2
1 2
1 2
1 2
2 2
1 1
1 2
2 1
1 2
2 2
2 2
1 1
1 1
1 2
1 1
1 2
2 1
1 1
1 1
1 1
1 2
2 2
2 2
2 1
2 2
2 1
1 2
2 2
1 2
2 2
1 2
2 2
1 1
1 1
2 2
2 1
1 2
2 2
1 2
1 1
1 1
2 2
1 2
2 1
1 2
1 2
1 2
1 2
1 1
2 1
1 2
1 1
1 2
2 2
2 2
2 1
2 1
2 2
1 2
1 1
1 1
2 2
2 1
1 1
1 2
1 2
2 2
2 2
1 2
1 2
2 2
1 2
2 2
2 1
1 2
1 2
1 2
2 2
1 1
2 2
1 2
2 2
1 2
2 2
1 1
1 2
1 2
1 1
1 1
1 1
1 2
1 2
1 2
2 2
2 1
2 1
2 2
2 2
1 2
2 2
1 2
2 1
2 1
2 2
1 1
2 2
2 2
2 2
1 1
1 2
1 1
1 2
1 1
2 1
1 2
2 2
2 2
1 1
1 1
1 1
1 2
2 2
2 2
1 2
1 2
1 2
2 1
1 2
2 2
2 1
1 1
2 1
2 1
1 2
1 2
1 2
1 2
2 2
2 1
2 2
2 1
1 2
1 2
2 2
1 1
2 2
1 2
1 2
1 1
2 2
1 1
1 2
2 1
1 1
1 1
1 1
2 1
1 1
2 1
2 2
1 1
2 1
2 1
1 1
1 2
2 1
1 1
2 1
1 2
2 1
2 1
2 1
1 1
1 2
2 2
1 1
2 2
1 1
1 1
1 1
1 2
1 1
1 1
1 1
1 1
2 2
1 1
2 2
2 1
1 1
1 2
2 2
1 1
2 1
1 2
1 2
1 2
1 1
1 2
2 2
2 1
2 1
2 2
1 2
2 1
2 2
2 1
1 1
1 1
2 2
2 1
1 1
2 2
1 2
1 1
1 2
2 1
2 2
2 2
1 2
2 1
1 2
1 2
1 2
1 2
2 2
1 2
2 2
2 2
2 1
2 1
1 2
1 1
2 1
1 1
1 1
2 2
1 2
2 2
2 1
1 2
1 2
1 2
2 1
1 1
2 2
2 2
2 1
1 2
1 1
2 2
1 1
1 1
1 1
2 1
1 1
1 1
2 2
2 2
1 1
2 1
1 2
1 2
2 1
1 1
2 2
2 1
1 2
1 2
1 2
2 1
1 2
1 2
1 2
2 1
1 1
1 1
1 2
2 2
2 1
1 1
2 2
2 2
2 1
1 1
1 2
2 1
2 2
1 1
1 1
2 1
2 2
1 1
2 1
1 1
1 1
1 1
2 2
1 1
2 1
1 2
1 1
2 1
2 2
1 2
2 1
1 1
1 2
1 2
1 2
1 2
2 1
2 1
1 2
1 1
2 1
2 2
2 1
1 2
2 1
1 2
2 2
2 1
2 2
2 1
2 2
1 2
2 1
1 2
2 2
2 2
2 2
2 2
2 1
2 2
2 1
1 1
2 2
2 2
1 1
2 2
2 2
1 1
2 1
2 1
1 2
1 2
1 2
1 2
2 2
1 2
1 2
2 1
1 2
1 2
1 1
1 2
1 2
2 2
2 1
1 1
2 2
1 2
1 2
2 1
2 1
2 1
1 2
1 1
1 1
1 1
1 2
1 2
2 1
1 1
2 2
2 2
2 2
1 1
1 2
2 1
1 1
2 1
1 2
1 1
1 1
2 2
1 2
2 2
1 2
2 1
1 1
1 2
2 1
1 1
2 1
2 1
1 1
1 2
2 2
1 1
2 1
2 1
2 2
1 1
2 2
1 2
1 2
1 2
1 2
1 2
2 2
1 1
2 1
1 1
1 1
1 1
1 1
1 1
1 2
2 2
1 2
2 1
1 1
1 1
2 1
1 1
2 1
2 2
2 1
1 2
1 2
2 2
1 1
2 1
2 1
1 2
2 1
2 2
2 1
1 2
1 2
1 2
1 1
1 1
2 2
2 2
1 1
1 2
2 1
1 1
2 1
2 2
1 2
1 1
2 2
2 2
1 1
2 1
2 2
1 1
1 2
1 2
2 1
1 1
1 2
1 2
2 2
2 2
2 2
2 2
2 1
2 1
2 2
2 2
1 2
2 2
1 2
1 1
2 2
2 1
2 1
1 1
1 1
1 1
2 1
1 1
2 2
2 2
1 2
2 2
2 1
2 2
1 2
2 1
2 1
2 2
1 2
1 2
1 1
2 1
1 1
1 2
2 2
2 1
1 2
1 2
1 1
1 2
2 2
1 1
1 1
2 1
2 1
2 1
1 2
1 1
2 1
2 1
1 1
1 2
1 1
2 1
1 2
1 1
1 2
1 2
1 1
1 2
2 1
1 2
2 1
1 1
1 1
1 2
2 1
2 2
1 2
2 2
1 2
2 1
1 2
2 1
1 1
2 2
2 1
2 2
2 2
2 2
2 2
1 2
1 2
2 2
1 1
1 2
1 2
1 1
1 1
2 1
2 2
1 2
2 2
2 1
1 1
1 2
2 1
2 2
1 2
1 1
2 1
1 2
2 1
2 2
2 1
1 2
2 2
1 2
1 2
2 2
1 2
2 1
1 1
2 2
1 2
1 1
1 2
1 2
1 1
2 1
1 2
1 1
1 1
1 1
1 2
2 2
2 2
1 1
2 1
2 2
2 2
2 2
2 2
1 1
2 1
2 1
2 1
2 1
1 1
1 2
1 2
1 1
1 1
1 2
1 2
2 1
1 1
1 1
1 1
2 2
1 1
1 1
2 1
1 1
2 2
1 2
1 1
2 1
2 2
1 1
2 2
1 2
1 1
1 1
2 2
2 1
2 1
2 2
2 1
1 1
1 1
1 2
2 2
2 1
1 1
2 2
1 1
2 2
1 2
1 2
1 1
2 1
2 2
1 1
2 1
1 1
1 2
2 1
2 2
2 1
1 1
1 2
1 2
1 1
2 2
1 1
1 2
1 1
1 2
1 1
2 2
2 2
2 1
2 1
1 1
1 2
1 1
2 1
2 2
2 1
2 2
1 1
2 1
2 1
1 1
2 1
2 1
2 1
1 2
1 1
1 2
2 1
2 2
1 2
2 1
1 2
2 2
2 1
1 2
2 1
1 1
2 1
2 2
1 1
2 1
2 1
2 2
2 1
2 2
1 2
2 1
1 2
1 2
1 2
1 1
2 2
1 2
1 2
1 2
1 1
1 1
2 1
1 1
1 1
2 2
2 1
1 1
2 2
1 1
2 1
1 1
1 2
2 2
2 2
2 1
1 2
1 1
1 1
2 2
2 2
2 2
2 1
2 1
1 2
2 1
2 1
2 1
2 2
1 1
2 2
2 1
1 2
1 1
1 2
1 1
1 1
2 2
1 2
2 2
1 2
2 1
2 2
2 1
2 2
2 1
1 2
1 1
2 2
2 1
1 2
1 2
1 2
2 1
1 1
2 2
2 1
1 2
1 2
2 2
1 1
2 2
1 1
2 2
2 1
1 2
1 1
1 1
2 1
1 2
2 2
2 2
1 2
2 1
1 2
2 1
1 2
1 2
1 2
1 1
1 2
2 1
2 1
2 2
2 1
2 2
2 1
1 1
2 2
2 1
2 1
1 2
2 1
2 2
2 2
1 2
1 1
1 2
1 2
1 2
1 1
1 2
2 1
1 2
2 1
1 2
1 1
2 2
1 1
1 2
2 1
1 1
1 1
1 2
2 1
1 2
2 2
1 1
2 2
1 1
2 2
1 2
2 1
1 2
2 2
2 1
1 1
1 2
2 2
1 1
2 1
2 2
2 1
2 1
2 2
2 1
2 1
1 1
1 1
2 2
1 2
2 1
1 1
1 1
1 2
1 2
2 2
1 1
2 1
1 2
1 2
1 2
1 2
2 1
2 1
2 2
1 1
2 1
2 1
2 1
1 2
2 2
2 2
2 2
2 1
1 2
2 1
2 1
1 1
2 2
2 1
2 2
1 1
2 2
1 1
2 1
2 2
1 1
2 2
2 1
1 2
1 2
1 2
1 2
2 2
1 2
2 1
1 1
1 2
1 1
1 2
2 2
1 2
1 2
1 1
1 2
2 1
2 2
2 1
2 1
1 2
2 2
2 2
2 1
1 2
2 2
1 2
1 2
1 2
2 2
2 2
2 2
1 1
1 1
2 2
1 2
1 1
1 2
2 2
1 1
2 2
2 2
1 1
2 1
1 1
2 2
2 2
1 2
2 1
1 1
2 2
2 2
1 1
1 2
2 1
1 2
2 2
2 1
2 2
1 2
1 1
1 1
1 2
2 1
2 2
2 2
1 2
2 1
2 2
2 2
1 2
2 1
2 2
2 2
1 1
1 1
1 2
1 1
2 1
2 2
2 1
1 2
1 1
1 1
1 2
2 2
2 1
1 2
1 2
2 2
1 2
2 2
1 2
1 1
2 2
2 2
2 2
2 1
2 1
1 1
2 1
2 1
1 2
1 2
1 2
1 1
2 1
1 2
2 2
1 1
1 1
1 2
2 2
2 2
1 1
2 2
1 2
1 2
1 2
2 2
1 2
2 1
1 1
2 2
1 2
2 1
2 1
2 2
1 2
1 2
2 1
1 1
2 2
1 2
2 1
1 1
1 2
1 1
2 1
1 2
1 1
2 1
1 1
2 2
2 1
2 1
2 2
2 1
1 2
2 2
1 1
2 2
1 2
1 2
1 2
1 1
1 2
2 2
2 2
1 1
2 2
2 2
1 1
1 2
2 2
2 1
1 2
1 1
2 1
2 1
2 1
1 2
1 1
1 2
1 1
1 1
1 2
2 1
2 2
1 2
2 1
1 2
1 2
2 1
1 2
1 2
2 2
2 2
2 2
1 1
2 2
2 2
2 1
2 2
1 1
2 1
1 2
1 2
2 1
2 2
2 2
2 1
1 2
1 2
1 2
1 1
2 1
1 2
2 1
1 1
2 1
2 1
2 2
2 1
1 1
1 2
2 2
1 2
2 1
1 2
1 1
1 1
2 1
1 2
2 1
2 2
2 2
1 2
2 2
1 2
2 1
1 1
1 2
2 2
2 2
2 2
2 2
1 2
1 1
2 1
1 1
1 1
1 2
1 2
2 1
2 1
2 2
1 2
2 2
1 2
1 2
2 2
1 2
1 2
2 2
2 1
2 2
1 1
1 2
1 1
2 1
1 2
2 2
1 1
2 2
2 2
1 1
1 1
2 1
2 1
1 1
2 2
2 1
2 1
2 1
2 2
1 1
2 2
2 2
1 2
1 1
2 2
2 2
2 1
2 1
2 2
1 2
2 1
1 2
2 1
1 2
1 2
1 2
2 1
2 1
2 2
1 1
2 1
2 1
1 2
1 1
1 1
1 2
1 2
2 1
2 1
2 2
1 1
2 1
1 2
2 1
1 2
2 1
1 2
2 1
2 2
1 2
1 1
1 2
1 1
2 2
2 1
1 1
2 1
1 1
1 2
1 2
2 2
1 2
1 2
2 2
1 2
2 1
1 1
1 2
1 2
2 2
2 2
1 1
1 1
2 1
1 1
1 2
2 1
2 1
2 2
2 2
2 2
2 2
2 1
1 2
2 2
1 2
2 1
1 2
1 1
2 2
2 2
1 1
2 1
2 2
1 2
1 1
2 1
2 1
2 2
1 1
1 1
1 1
2 1
2 2
1 2
1 2
1 1
2 1
1 1
1 1
2 1
1 2
2 1
1 2
1 1
1 2
2 1
2 1
2 1
1 2
2 2
1 1
2 1
2 1
1 2
1 2
2 2
1 1
2 1
2 1
1 1
2 1
2 2
1 1
1 2
2 1
2 1
1 2
2 2
2 2
2 2
2 1
1 2
2 1
2 2
2 2
1 2
2 1
2 1
1 2
2 1
1 1
1 2
2 2
2 2
1 1
2 2
1 1
2 1
2 2
2 2
1 2
1 1
1 1
2 1
1 2
1 1
1 1
2 1
2 2
1 2
2 2
1 2
2 1
2 1
2 2
1 1
1 2
2 1
2 1
2 2
1 2
1 1
2 2
1 1
2 2
1 2
1 1
1 2
1 2
1 2
2 1
2 2
2 2
1 2
1 1
1 2
2 2
1 2
1 1
1 2
1 1
1 1
1 2
1 2
2 1
1 2
1 1
1 2
2 1
2 1
2 1
1 1
2 2
1 2
2 1
1 2
2 1
1 2
1 1
2 2
2 1
1 1
2 2
2 1
1 1
2 2
1 2
2 1
1 2
1 1
1 2
1 2
2 1
2 2
1 2
2 2
2 2
2 2
1 2
1 2
1 1
1 1
2 2
2 2
1 2
1 1
1 1
1 1
1 2
2 1
1 2
2 2
1 1
2 1
1 2
1 2
1 2
1 1
1 1
1 1
1 2
1 2
1 2
2 2
2 2
2 2
2 2
2 2
1 1
1 2
2 2
1 1
2 1
2 1
1 2
2 2
1 2
1 1
2 1
1 1
1 2
2 1
2 1
1 2
1 1
1 1
1 1
1 2
1 2
1 2
2 2
2 2
1 2
1 1
2 2
1 2
2 2
2 2
1 2
1 1
2 2
1 1
1 2
1 2
1 1
1 2
1 1
1 2
2 2
1 1
2 2
2 1
1 2
1 1
2 2
2 1
1 1
2 1
2 2
2 2
2 1
2 1
2 1
1 2
2 2
2 1
2 1
1 2
2 2
2 2
1 1
1 2
1 1
2 1
1 1
2 2
1 1
2 2
1 1
1 1
1 2
1 1
2 1
2 1
1 2
2 2
1 1
2 1
2 2
2 1
1 1
1 1
2 2
1 2
2 2
2 2
1 2
1 1
1 2
2 2
1 1
2 1
2 1
2 1
1 1
2 1
2 2
1 2
2 1
1 1
2 2
2 1
1 2
1 1
1 2
2 2
1 2
2 1
2 2
1 1
1 2
2 1
1 1
1 2
2 1
1 2
2 1
2 2
2 2
2 1
1 2
1 2
1 1
2 2
2 2
2 2
1 1
1 2
1 2
1 2
2 2
2 2
1 1
1 2
1 1
1 1
1 2
1 1
2 1
2 2
1 2
2 2
2 1
2 2
1 1
2 1
1 1
1 2
2 1
1 2
2 1
1 2
2 1
2 2
1 1
1 1
1 2
1 2
1 2
2 1
1 1
2 2
2 2
2 1
1 2
2 1
1 2
1 1
1 2
2 2
2 2
1 1
2 2
1 2
1 2
1 1
1 1
2 1
2 2
1 1
1 1
2 2
1 2
2 2
1 2
2 1
2 2
2 2
1 2
1 1
2 2
1 2
2 2
2 2
1 1
1 2
1 2
2 2
1 1
2 1
2 1
2 2
2 2
1 1
1 2
2 2
2 2
1 2
2 1
1 1
2 2
2 1
1 1
1 2
1 2
1 2
2 2
1 2
1 1
1 1
1 2
2 1
1 1
2 2
2 2
1 1
1 2
2 1
2 1
2 1
1 2
1 1
1 1
2 2
1 2
1 1
2 1
1 2
2 1
1 1
1 2
2 2
1 2
2 2
2 2
2 2
1 2
1 1
1 1
2 2
2 1
1 1
2 2
1 1
1 1
2 1
1 2
1 2
2 1
1 1
1 1
1 1
1 1
1 2
2 2
1 1
1 2
1 1
2 2
2 2
1 2
1 2
1 1
1 2
2 1
1 2
2 2
1 1
2 1
1 1
2 1
1 1
2 2
1 1
2 2
1 1
2 2
2 1
1 2
2 1
2 1
1 2
2 2
1 2
2 1
1 1
1 1
2 1
1 2
1 1
2 2
1 1
1 2
1 1
2 2
1 2
2 2
2 1
2 1
2 2
2 1
2 1
1 2
2 2
2 1
2 1
2 2
1 1
2 2
1 2
2 1
2 1
2 1
1 2
2 1
2 1
1 1
1 1
2 1
2 2
2 2
1 1
2 1
2 1
1 1
1 1
2 1
2 2
1 2
1 1
1 1
1 1
2 2
2 2
1 2
1 2
2 1
1 2
2 2
2 1
1 1
2 1
2 2
2 2
2 1
2 2
1 1
2 2
1 1
2 1
1 2
2 2
1 2
1 2
2 1
1 2
1 2
2 1
1 1
2 1
2 1
2 1
2 1
2 1
1 1
2 1
1 1
2 1
2 2
1 2
2 2
2 2
2 2
2 2
1 2
1 2
2 1
2 2
1 2
2 1
1 2
1 2
2 2
2 1
1 2
2 2
2 2
1 1
2 1
1 2
2 2
1 2
2 2
1 2
1 2
1 1
2 2
1 2
2 1
1 2
2 1
1 1
2 2
2 1
2 2
1 1
2 2
1 2
1 2
2 2
2 1
1 2
2 2
2 1
2 1
2 1
1 2
2 1
2 1
1 2
2 2
1 1
1 2
2 1
1 2
2 2
1 1
1 2
2 2
2 1
2 2
1 2
2 1
1 2
1 1
1 2
1 2
2 2
1 2
1 1
1 1
1 2
1 1
2 2
1 2
2 1
1 2
2 2
2 1
2 1
1 2
2 2
2 2
2 2
1 2
1 1
2 1
1 2
1 2
2 2
1 2
1 1
1 1
1 1
1 2
1 2
1 2
1 2
2 2
2 1
2 2
2 2
2 1
2 2
1 2
2 1
2 1
1 2
2 1
1 1
2 2
2 1
1 1
1 2
2 2
2 2
2 1
1 1
1 2
2 1
1 1
1 2
2 2
1 1
1 2
1 1
1 1
2 2
2 1
2 1
1 2
2 1
2 2
2 2
1 2
1 1
1 2
1 1
1 1
2 1
1 1
1 1
2 2
1 1
2 2
1 1
1 2
1 2
1 1
2 2
1 2
2 2
2 2
2 1
1 1
2 2
2 2
2 2
1 2
1 2
2 1
1 1
1 2
2 2
1 2
2 1
2 1
1 2
1 2
2 2
1 1
2 2
1 2
1 2
1 1
2 2
1 1
2 2
2 1
1 1
2 2
2 2
2 2
1 2
2 2
2 2
1 1
2 2
1 2
1 1
1 2
1 1
2 2
1 2
1 1
2 2
2 1
2 2
1 2
1 2
1 1
1 2
2 2
2 1
1 2
1 1
1 2
1 2
1 2
2 2
1 2
2 1
1 1
2 2
1 2
1 2
1 1
2 2
1 2
1 1
2 2
2 2
2 2
2 2
2 2
1 2
1 1
2 1
1 2
1 2
2 2
2 1
1 1
1 2
1 1
2 1
1 1
1 1
1 2
1 1
2 2
1 2
2 2
1 2
1 1
1 1
1 2
2 1
2 2
1 1
1 2
1 2
2 2
1 1
2 2
1 1
1 1
2 1
1 1
1 1
1 1
2 2
1 1
2 1
1 2
1 1
2 2
1 1
2 2
2 2
1 2
2 1
1 1
2 1
1 2
1 1
1 1
1 2
1 2
1 1
2 2
1 2
2 2
1 1
1 1
2 2
1 1
2 1
2 2
1 2
2 1
1 2
1 1
2 1
2 2
1 1
1 2
2 2
1 2
1 2
2 1
2 2
1 2
2 2
1 2
1 2
1 2
1 1
2 1
1 1
1 1
1 1
2 2
2 1
1 1
2 2
1 2
2 2
1 1
1 1
2 2
1 1
1 2
2 1
2 1
1 1
2 2
1 2
1 2
2 1
2 2
1 2
2 2
2 2
2 1
1 1
1 1
2 1
2 2
2 1
1 1
2 1
2 2
2 2
2 1
1 2
1 1
2 2
1 2
2 2
2 1
2 2
2 2
2 1
1 2
1 2
1 2
1 2
2 2
1 2
2 1
1 2
2 2
2 2
2 1
2 2
1 2
1 2
2 1
2 2
1 2
2 1
2 2
2 2
2 2
2 1
2 2
2 1
2 2
1 2
1 1
2 2
1 1
2 2
2 1
2 2
1 1
1 2
2 1
1 1
2 2
2 1
1 1
1 1
2 2
2 2
1 2
1 1
1 1
2 1
1 1
1 1
1 1
2 2
1 1
2 2
2 1
1 1
2 1
1 1
1 2
2 1
2 1
2 1
2 2
2 2
1 2
1 2
2 1
1 1
1 2
1 2
2 2
2 2
1 1
2 2
2 1
2 1
1 2
1 1
2 1
2 1
2 2
1 1
1 2
2 1
2 2
2 2
2 2
1 2
1 1
1 2
1 1
2 1
1 1
1 2
1 1
1 1
1 1
1 1
2 2
2 2
1 1
1 2
1 1
2 2
1 2
1 1
2 2
2 2
1 1
1 1
1 1
1 1
1 1
1 2
1 1
2 1
2 1
1 1
1 2
2 2
2 2
2 2
2 2
1 1
2 2
2 2
1 2
1 2
2 1
2 2
1 1
2 1
1 1
2 1
1 2
2 2
1 1
2 1
2 2
1 1
2 2
1 1
2 2
2 2
2 2
1 2
2 2
2 2
1 2
1 2
2 1
1 1
2 2
2 1
1 2
1 1
1 2
1 1
1 1
2 2
1 1
1 1
2 2
2 2
1 1
2 1
1 2
2 1
2 2
2 1
2 1
1 1
1 1
1 1
1 2
1 2
1 1
1 1
2 1
2 2
1 2
1 2
2 2
1 1
1 1
2 1
2 2
2 2
1 2
1 2
1 1
2 1
1 1
1 2
1 1
2 2
1 2
2 2
2 2
1 2
2 1
2 1
1 1
1 2
1 2
2 2
1 2
1 2
2 1
2 1
1 2
1 1
1 2
2 1
2 2
1 1
1 1
1 1
1 2
2 1
2 1
2 1
1 1
1 2
2 2
2 2
2 1
1 2
2 2
1 1
2 2
2 1
2 1
2 1
2 2
1 1
2 2
1 1
2 2
1 1
2 2
2 1
2 2
1 1
1 2
1 2
1 2
1 2
1 2
1 2
1 2
1 1
2 1
1 1
2 1
2 2
2 2
2 1
2 2
1 1
2 2
1 2
1 1
2 1
2 1
1 1
1 2
2 1
2 1
2 2
2 2
2 1
2 1
2 2
2 1
1 1
2 2
1 1
2 1
2 2
2 1
1 1
2 1
2 2
2 2
2 2
1 2
1 2
2 2
2 1
2 1
1 2
1 1
2 1
2 2
1 1
2 1
2 1
1 2
1 2
2 2
2 2
1 2
2 2
1 1
2 1
2 2
2 2
2 1
2 1
2 2
1 1
1 2
1 2
2 1
2 2
2 1
1 2
1 2
2 2
1 1
2 2
2 1
1 2
2 1
2 1
1 1
2 2
2 1
2 2
2 1
1 2
1 2
2 1
1 2
2 1
1 1
1 1
1 2
1 1
1 1
2 1
2 1
1 1
2 1
2 2
1 2
2 1
2 2
2 1
2 2
2 2
2 2
1 1
1 1
2 2
1 1
2 1
2 2
1 2
1 2
2 2
2 2
2 1
2 1
1 1
2 2
2 1
2 2
2 1
1 1
2 1
2 2
1 1
2 2
1 2
1 1
2 1
2 2
1 1
2 2
2 2
1 1
2 1
1 1
1 1
1 2
1 2
2 2
2 2
2 1
2 2
1 2
2 1
1 2
1 2
1 2
2 2
1 2
2 2
2 2
1 2
2 2
2 2
2 2
1 1
1 1
2 2
1 1
1 2
2 2
2 1
1 1
1 1
1 2
1 1
2 2
1 2
2 1
2 2
2 1
1 1
2 1
2 2
2 1
1 2
1 2
2 1
1 1
2 1
2 1
1 1
2 1
2 2
1 1
1 1
1 1
2 1
2 2
2 2
2 1
1 1
1 1
1 2
1 2
2 2
1 1
1 1
1 1
2 1
1 2
1 2
2 2
1 2
1 2
1 1
1 2
1 1
1 1
2 1
1 1
1 2
2 2
1 2
2 2
2 2
2 2
1 2
2 1
2 1
1 2
2 1
2 2
1 2
1 1
1 2
1 1
2 1
1 1
1 1
1 1
1 2
2 1
1 1
2 2
1 2
2 2
2 2
2 2
1 2
2 2
1 2
2 1
1 2
2 1
1 1
1 1
1 1
2 2
1 2
1 1
1 2
1 2
2 1
1 1
1 2
2 2
2 2
2 1
1 1
1 1
2 1
1 1
1 2
2 2
2 2
1 1
1 1
2 1
1 2
1 1
1 2
1 2
2 1
2 2
2 1
2 2
1 1
2 1
2 2
2 1
2 2
2 2
2 1
1 2
1 2
2 1
2 1
1 1
1 1
2 2
1 1
2 1
1 2
2 1
1 2
2 2
2 1
1 1
1 2
1 2
1 1
2 1
1 1
1 2
2 1
2 2
1 2
1 2
2 2
2 2
2 1
2 1
2 1
1 1
2 1
2 2
1 2
1 2
1 2
2 2
1 2
1 1
1 2
2 2
1 1
2 2
1 1
2 2
1 1
2 1
2 1
2 1
2 1
2 1
2 1
2 2
1 2
1 1
2 1
2 1
1 2
2 2
2 2
1 1
2 1
2 1
2 1
1 1
1 1
2 1
2 2
2 1
2 2
2 2
2 2
2 1
2 1
1 1
2 2
2 2
2 1
2 1
1 1
2 2
1 2
1 2
1 2
2 2
2 1
2 2
2 2
2 1
2 1
2 1
1 1
1 1
1 2
2 1
2 1
2 1
2 1
1 2
1 1
2 1
2 1
1 2
1 1
1 2
1 1
1 1
2 2
1 1
2 2
1 2
1 1
2 2
2 1
1 1
2 2
2 1
1 1
2 1
1 2
2 2
1 2
2 2
2 2
1 2
1 1
2 1
1 2
2 1
2 1
1 2
1 1
1 1
2 1
1 2
1 1
2 2
1 2
1 2
1 2
2 1
1 1
1 1
1 1
2 1
2 2
2 2
2 2
2 1
2 2
1 1
1 2
1 1
1 2
1 2
1 2
2 1
2 2
2 2
1 2
1 2
2 1
1 2
1 2
2 1
1 2
2 1
2 2
1 2
1 2
1 2
1 2
2 2
1 1
1 1
1 2
1 2
1 1
1 2
2 2
2 2
2 1
1 2
2 2
2 1
2 2
2 1
2 2
1 1
1 1
1 2
2 1
2 2
1 2
2 1
1 1
1 2
2 1
2 1
1 2
2 1
1 1
1 2
2 2
2 1
2 1
2 1
1 1
1 1
2 2
2 2
2 1
1 1
2 2
2 1
1 2
2 1
2 1
1 2
2 2
2 2
1 1
2 1
2 2
1 2
2 1
2 2
1 2
2 1
2 1
1 1
2 2
2 1
2 2
1 1
1 1
2 1
2 1
2 2
2 2
2 1
1 2
1 2
2 1
1 1
2 1
2 2
1 1
2 2
1 1
1 1
2 2
1 2
1 2
1 2
1 2
2 1
2 2
1 2
2 1
2 2
1 1
2 1
2 1
2 2
1 1
1 2
1 1
2 1
2 1
1 1
2 2
2 1
2 2
2 2
2 1
1 2
1 2
2 1
2 1
2 1
2 1
2 2
1 1
1 2
1 2
1 2
2 2
1 2
2 1
1 2
1 2
2 2
2 1
2 1
1 2
1 2
1 2
1 1
1 2
2 2
1 1
1 2
1 2
2 2
2 2
2 1
1 1
1 1
1 2
1 1
1 2
2 2
1 2
1 1
2 2
1 1
2 1
2 1
2 1
2 2
1 2
2 2
1 1
2 1
2 1
2 1
1 1
2 1
1 2
2 2
1 2
1 2
2 1
2 2
1 2
1 2
1 1
2 1
2 1
1 2
1 1
1 1
2 1
2 2
1 2
2 2
1 1
1 1
2 1
1 2
2 1
2 1
2 2
1 1
2 2
1 1
2 2
1 2
1 1
1 2
2 2
2 2
2 2
2 1
1 1
2 1
1 1
2 1
1 2
2 2
1 1
1 1
2 1
2 1
2 1
1 1
2 2
2 1
2 2
1 1
2 2
2 2
1 2
2 1
1 2
2 1
2 2
2 1
1 2
1 2
1 1
2 2
1 1
2 2
2 2
2 2
2 2
1 1
2 1
1 1
1 2
2 1
1 2
1 1
1 2
2 1
1 1
2 2
1 1
2 2
1 1
2 1
2 1
1 1
1 1
2 1
1 1
1 1
2 2
2 1
2 2
2 1
1 1
1 2
2 2
1 1
1 2
2 1
1 1
1 1
2 2
1 2
1 2
1 1
1 2
2 1
2 2
1 2
1 1
2 2
1 1
2 1
2 1
1 2
2 1
2 1
1 1
2 1
1 2
2 1
1 2
2 1
2 1
2 2
1 1
2 2
2 2
1 2
1 1
1 1
2 2
2 2
2 1
2 2
1 1
2 2
1 2
2 1
1 2
2 2
1 1
2 1
1 1
2 1
1 2
1 1
1 1
2 2
2 2
2 1
1 2
2 2
1 1
2 1
1 1
1 2
1 1
1 1
1 1
1 2
1 1
1 2
2 1
1 2
1 1
1 2
1 2
2 2
2 1
2 2
2 1
1 1
2 2
1 2
2 1
1 1
1 2
2 1
2 1
2 1
1 2
2 1
1 1
2 2
2 1
1 2
1 2
1 1
1 1
1 1
1 2
1 1
1 2
1 1
1 2
2 2
2 1
1 2
2 1
2 2
2 1
1 1
2 1
2 2
1 1
1 1
2 2
1 2
2 2
2 1
1 2
2 2
1 1
2 1
1 1
2 1
1 1
1 1
1 2
1 1
1 1
1 1
2 1
2 1
1 1
1 2
2 1
2 2
1 1
2 1
2 2
1 2
1 2
1 1
2 1
2 2
2 1
2 2
2 2
2 2
1 2
1 1
1 1
1 1
2 1
2 1
2 1
1 2
2 1
1 1
2 2
2 1
1 2
1 2
1 2
2 2
2 2
1 2
2 1
2 2
2 2
2 2
1 2
2 2
2 1
2 1
2 1
2 2
2 1
2 2
1 2
1 2
2 1
2 1
1 1
2 2
1 1
2 1
2 1
2 1
2 1
1 2
2 1
2 2
1 2
1 1
1 1
1 2
1 2
1 2
1 2
1 1
1 2
1 1
1 2
2 1
2 1
2 2
1 1
2 1
2 1
1 2
1 1
1 1
2 1
1 2
1 1
2 1
1 2
1 1
1 1
2 1
1 1
2 2
1 1
2 2
2 1
1 1
2 2
2 1
2 2
2 1
1 2
1 2
1 1
1 1
1 2
2 2
2 1
2 2
1 1
2 2
1 1
1 2
1 1
2 1
2 1
1 2
1 1
1 1
2 1
2 2
1 1
1 2
2 1
1 2
2 1
1 2
2 1
2 2
2 1
1 1
1 2
1 2
1 2
2 2
2 1
2 1
1 2
2 2
2 2
2 1
1 1
1 1
2 2
1 2
1 2
2 1
2 1
1 1
2 2
1 1
2 1
2 2
2 2
1 1
1 1
2 1
1 1
2 1
1 1
1 2
1 2
2 2
2 2
1 2
1 1
1 2
2 2
1 2
2 1
1 1
1 2
1 1
2 2
1 2
2 1
2 2
1 2
2 2
1 1
2 2
1 1
2 2
1 2
1 2
2 1
1 1
1 1
2 2
2 1
2 2
1 2
1 1
1 2
1 1
1 2
1 2
1 2
1 1
2 2
2 2
1 1
2 2
1 1
1 1
2 2
1 2
2 1
2 2
2 1
2 1
1 2
1 1
2 1
2 2
2 1
2 1
2 1
2 2
1 1
2 2
1 1
2 2
1 2
1 2
2 2
1 2
1 1
2 1
2 1
1 2
1 2
2 1
2 2
2 2
2 1
1 2
2 2
1 1
2 1
2 1
1 1
1 1
1 1
2 2
1 2
2 1
2 1
1 2
1 2
1 1
1 1
2 2
1 2
1 2
1 2
1 1
2 1
1 1
1 2
2 1
1 2
1 2
2 2
2 1
2 2
1 2
1 2
1 2
1 2
1 1
2 2
1 1
2 2
2 1
2 1
2 2
2 2
1 1
2 2
2 2
1 2
2 1
1 1
1 2
1 2
1 1
2 2
2 2
1 1
1 2
1 1
1 1
1 2
1 1
2 1
2 2
2 1
1 1
2 1
2 2
1 1
2 1
2 2
2 2
1 2
2 1
1 2
2 1
2 2
1 1
1 1
1 2
2 2
2 1
1 2
1 2
2 1
1 2
1 2
1 2
2 1
1 2
2 1
1 2
2 1
1 1
1 2
1 1
1 2
2 1
1 1
2 1
2 1
2 2
2 2
2 1
2 1
1 1
2 1
1 1
1 2
1 2
1 1
2 1
1 1
2 2
1 2
1 2
1 1
1 1
2 2
1 2
1 1
1 1
1 1
2 2
1 2
1 1
2 1
2 2
2 1
2 1
2 1
1 2
2 1
2 1
1 2
2 1
2 1
1 2
1 2
1 1
2 1
2 2
2 1
1 2
2 2
2 2
2 1
2 2
1 1
2 1
2 1
1 2
2 1
2 2
1 1
2 2
2 2
1 1
2 1
1 1
1 1
1 2
1 2
1 1
2 1
1 1
1 1
2 1
1 1
1 1
2 1
1 1
2 2
1 2
2 2
2 1
1 1
1 1
2 1
1 2
1 2
2 1
1 1
1 2
1 2
1 1
2 1
1 2
1 1
2 2
2 1
2 1
2 2
2 2
2 2
2 1
1 1
1 1
1 1
2 1
2 2
1 2
2 1
2 1
1 2
2 2
2 2
1 1
2 2
1 2
1 1
1 2
2 1
2 1
2 2
2 2
1 1
2 1
2 1
1 2
2 2
1 2
1 2
2 1
1 1
2 2
2 1
1 2
1 1
1 1
1 1
2 1
1 2
1 1
1 2
1 1
1 1
2 1
1 1
1 1
1 1
1 2
2 2
1 2
2 2
1 2
2 1
2 1
2 1
1 1
2 2
1 2
2 1
1 1
2 2
1 2
1 2
1 1
1 2
2 1
2 1
1 2
1 2
1 1
2 2
2 2
1 1
1 1
1 1
2 2
1 1
2 2
1 1
1 2
2 1
1 2
1 2
1 2
2 1
1 2
1 2
1 1
1 1
1 1
1 1
2 2
2 1
1 1
1 2
1 2
2 1
1 1
2 2
2 2
2 1
1 2
2 2
2 1
1 2
2 2
1 2
2 1
1 1
2 2
2 2
2 1
1 1
2 2
2 1
2 2
1 2
2 1
2 1
1 2
1 2
1 2
1 1
2 2
2 2
1 2
1 1
1 1
2 1
1 2
1 2
2 2
1 2
2 2
1 1
2 1
2 2
1 1
1 2
2 1
2 1
2 1
1 2
2 2
2 2
1 2
2 1
2 2
1 2
2 2
1 1
1 1
1 1
1 2
2 2
1 2
1 1
1 2
1 2
2 2
2 2
2 1
1 2
1 1
1 2
2 1
2 2
2 1
1 2
1 2
1 1
2 1
1 1
2 1
1 1
1 2
2 2
1 1
2 2
2 2
1 1
1 1
1 2
1 2
1 2
2 2
1 1
1 1
2 2
1 1
2 2
2 1
1 1
1 1
2 1
2 2
1 1
2 2
2 1
2 2
2 2
1 1
1 2
1 2
2 2
1 1
1 2
1 1
2 1
1 2
1 2
2 1
2 2
2 1
2 2
2 2
1 2
2 1
1 2
1 2
1 1
2 2
1 2
1 1
1 1
1 1
1 1
1 2
1 1
1 1
2 2
1 1
2 1
1 2
2 2
1 2
1 2
1 2
1 1
1 1
1 1
1 1
1 1
2 2
1 1
2 2
1 2
1 1
1 2
1 1
1 1
2 2
2 2
1 2
2 1
2 1
2 1
1 1
2 2
1 1
1 1
2 1
2 1
2 2
2 1
1 1
1 1
1 2
1 2
2 1
2 2
1 1
1 1
1 2
2 2
1 2
2 1
1 2
1 1
1 1
2 1
2 2
1 1
2 1
2 2
2 2
2 1
2 1
2 1
1 1
1 1
1 1
2 2
2 1
2 2
1 2
1 1
1 2
1 1
1 1
2 2
2 2
1 1
1 2
2 1
1 1
1 1
2 1
2 2
1 2
1 2
1 2
1 2
1 1
1 1
1 1
1 1
1 2
2 2
2 2
2 2
1 1
2 1
1 1
2 2
1 1
2 2
1 1
1 2
2 1
1 2
2 1
2 1
1 2
1 1
1 2
2 1
2 2
2 1
1 1
2 1
1 2
2 2
2 2
2 2
1 2
2 2
2 2
2 2
1 1
1 1
1 2
2 1
1 1
1 1
2 2
2 2
1 1
2 2
1 2
1 2
2 1
2 1
2 2
1 2
2 2
2 2
2 2
1 1
2 2
1 1
1 1
2 1
1 1
1 2
2 2
1 1
2 2
1 1
1 2
2 1
2 2
2 2
1 2
2 1
1 1
2 2
1 2
1 2
1 2
1 1
1 2
1 1
2 1
1 1
2 1
1 2
2 2
1 2
1 1
2 1
2 2
1 2
2 2
2 1
2 2
1 1
1 2
2 1
1 1
1 1
2 2
2 2
1 2
1 1
2 2
2 1
2 1
2 1
2 2
2 2
1 2
2 1
1 1
1 1
1 2
2 1
2 1
2 2
2 2
2 1
2 1
1 1
2 1
1 1
2 2
1 1
2 2
2 1
1 1
2 1
1 1
1 2
2 1
2 2
1 1
1 1
2 2
2 2
1 2
1 1
2 1
1 1
1 1
2 1
1 1
2 2
2 1
1 1
2 2
1 1
1 1
1 1
2 2
2 1
2 1
2 2
1 2
1 1
2 1
1 1
1 2
2 2
2 2
1 1
2 2
2 2
2 1
2 1
2 1
2 2
2 1
1 1
1 2
1 2
1 2
2 2
1 1
1 2
2 1
2 1
2 2
2 2
2 2
1 1
1 1
2 1
2 1
1 2
1 2
1 1
2 2
2 2
1 2
1 1
1 2
1 2
2 2
2 2
1 2
1 1
1 1
2 2
1 2
1 1
2 1
2 1
2 1
1 1
1 1
2 2
1 1
1 2
2 2
1 1
2 1
1 1
1 2
1 2
2 1
1 2
1 1
1 2
2 1
1 2
2 1
2 1
2 1
1 1
2 1
2 2
1 2
1 1
1 1
2 1
2 2
2 1
2 1
2 1
2 2
1 2
2 1
1 1
1 2
1 1
1 2
2 2
1 1
2 1
2 2
2 1
1 2
1 2
1 2
2 1
2 1
2 2
1 1
2 2
1 1
1 2
2 1
1 2
1 2
1 2
1 2
2 1
2 1
2 2
2 2
2 1
2 1
1 2
2 2
2 1
1 2
2 1
1 1
1 1
2 1
2 1
2 1
1 1
2 1
1 2
1 1
2 2
1 2
1 1
1 2
1 2
1 2
1 1
2 2
2 1
1 2
1 2
2 2
2 1
2 2
1 2
1 2
2 2
2 2
1 1
2 2
1 1
2 1
2 1
2 2
1 1
2 2
1 2
2 1
2 2
1 2
1 2
1 2
2 2
2 2
1 1
2 2
1 2
1 1
1 1
2 2
2 2
1 2
2 1
1 1
2 1
2 2
2 2
1 1
2 2
2 2
1 2
1 2
1 2
2 2
1 1
1 2
2 1
2 2
1 2
1 2
2 1
2 2
1 1
2 1
2 1
2 1
2 2
1 1
1 2
1 2
2 1
2 2
2 1
2 2
2 1
2 1
2 2
2 1
2 1
1 2
2 2
2 2
2 1
2 2
1 1
2 1
1 1
1 1
2 1
1 2
1 1
2 1
1 1
1 1
2 2
1 1
1 1
1 2
1 2
2 1
1 2
2 2
1 2
1 2
2 1
2 2
2 1
2 2
2 1
2 1
1 1
1 2
2 2
2 2
2 1
1 1
1 2
1 1
1 1
2 1
1 2
2 2
1 2
1 1
2 1
1 2
1 2
2 1
2 1
2 2
2 2
1 1
1 2
2 2
2 2
1 2
2 1
2 1
2 2
2 2
2 2
2 1
1 1
1 1
1 1
1 2
2 1
2 1
2 1
2 2
1 1
2 1
1 2
1 2
2 2
2 1
1 2
2 1
2 1
2 2
2 2
2 1
2 2
1 2
1 2
1 2
2 2
1 1
1 1
1 1
1 2
2 1
2 2
2 2
2 1
2 1
2 2
1 2
2 1
2 1
1 2
1 2
2 1
2 1
1 2
2 1
1 2
1 2
2 2
2 2
1 1
2 1
2 2
2 1
2 2
2 2
2 2
1 2
2 2
2 2
2 1
2 2
1 1
2 1
2 1
1 2
2 1
1 1
2 1
1 1
2 2
2 1
1 1
2 2
2 2
2 1
1 2
1 2
2 1
1 1
2 2
1 2
2 1
2 2
2 2
2 1
1 2
1 1
1 2
2 1
2 1
1 1
2 1
2 2
2 2
1 2
2 2
2 1
2 2
2 1
1 2
1 1
1 2
2 2
1 1
2 2
1 2
2 1
2 2
2 2
1 2
2 1
1 2
1 2
2 2
1 1
1 2
2 1
2 2
2 2
1 2
1 2
2 1
2 2
1 1
2 1
1 1
1 1
1 2
2 2
2 2
1 2
2 2
2 1
1 1
1 1
2 2
2 2
1 1
1 1
2 1
1 1
2 2
1 1
2 2
1 1
2 2
2 2
1 1
2 1
2 2
1 1
2 2
1 2
2 2
2 2
1 2
2 2
1 1
2 1
2 1
2 1
1 2
2 2
2 2
2 2
2 2
1 1
2 1
2 2
2 2
2 2
1 2
1 1
2 1
2 2
2 2
2 1
1 2
1 2
1 1
1 1
1 2
2 2
1 1
2 1
1 2
1 2
1 1
2 1
1 2
1 2
1 1
2 2
2 2
1 1
1 1
2 1
2 2
2 2
2 2
1 1
2 2
2 1
1 2
2 2
1 2
1 1
2 2
1 2
2 2
2 1
1 1
1 2
2 1
2 2
1 2
2 2
2 1
1 2
2 1
1 1
2 2
2 2
2 1
1 1
1 1
1 1
1 1
1 1
1 2
2 1
2 1
1 2
1 1
2 1
2 2
2 1
1 1
1 1
1 1
1 1
2 2
2 1
2 2
2 1
1 1
1 2
2 1
2 2
2 2
1 1
2 1
1 1
1 2
2 2
1 1
2 2
2 1
1 2
2 2
2 2
2 2
1 2
2 1
1 2
2 1
2 1
1 2
1 2
2 1
1 2
1 2
1 1
2 2
1 2
1 1
2 1
2 1
2 2
1 1
2 1
2 2
1 2
2 2
1 2
2 1
2 1
2 2
2 1
1 1
1 2
1 2
1 1
2 2
1 2
2 1
2 2
2 1
2 1
1 1
1 1
2 2
1 2
1 2
1 1
2 1
2 1
1 1
2 2
2 1
1 1
1 1
1 2
2 2
1 2
1 2
1 2
1 2
2 1
2 1
2 1
1 2
2 2
1 2
2 2
2 2
2 2
1 1
2 1
2 2
2 1
1 2
1 2
2 1
1 1
1 2
2 1
2 2
1 1
1 2
2 1
2 2
2 1
1 2
1 1
1 2
1 1
2 1
1 2
2 1
1 1
2 2
2 1
1 1
2 1
1 1
2 2
1 1
2 2
2 1
1 1
1 2
2 2
1 2
1 2
1 1
2 2
2 2
2 1
1 2
1 2
1 1
1 1
2 2
2 1
1 1
1 1
2 2
2 1
2 2
2 1
1 2
2 2
1 1
1 1
2 1
1 1
1 2
2 2
1 1
1 1
2 1
2 1
2 2
1 1
1 2
1 1
2 1
2 1
1 1
1 2
2 2
2 2
2 2
2 2
1 1
2 2
2 2
2 2
1 2
2 2
2 1
1 2
2 2
1 1
2 1
2 1
1 2
1 1
1 2
2 2
2 2
2 1
2 1
1 1
2 2
1 1
1 2
2 2
1 1
1 1
1 1
1 2
1 1
2 1
2 2
1 1
1 1
1 2
2 1
1 1
2 2
2 2
1 1
1 1
1 2
1 1
1 1
1 1
2 2
1 1
1 2
1 2
2 2
2 2
1 1
2 1
1 2
1 2
2 1
2 2
1 2
1 1
2 2
2 2
1 1
2 1
1 1
1 2
1 2
1 2
1 1
1 2
1 2
2 2
1 2
2 2
2 2
2 1
2 2
2 2
2 1
2 2
1 1
2 1
2 1
1 2
2 2
2 2
1 1
2 2
1 2
1 2
2 2
2 1
1 2
2 1
2 2
1 2
1 2
1 1
2 2
2 1
2 1
2 1
2 1
1 1
2 2
1 2
2 2
1 1
1 1
1 1
2 1
2 2
2 1
1 2
1 2
2 1
2 2
2 2
2 2
1 1
1 2
2 2
1 2
2 1
1 2
2 2
2 2
1 1
2 1
1 1
1 1
1 2
2 2
2 1
1 1
2 2
2 2
2 1
2 2
1 1
2 2
2 1
1 2
2 2
2 1
1 1
2 1
2 2
1 1
2 1
1 2
1 1
1 1
1 1
1 1
1 1
1 2
1 1
1 2
1 1
1 2
1 1
2 2
1 1
1 2
1 2
1 1
2 2
2 1
1 2
1 2
1 1
1 1
1 2
1 1
1 1
2 2
2 1
2 1
2 2
2 2
1 2
1 1
2 1
1 2
2 1
1 2
1 1
2 1
1 2
2 1
2 2
2 1
2 2
1 2
2 1
2 1
2 2
2 1
2 2
1 2
1 2
1 1
1 2
1 1
1 2
2 1
2 1
2 2
2 1
1 2
2 1
2 2
2 1
1 1
1 2
2 1
2 2
2 1
1 1
2 2
1 1
1 1
2 2
2 1
2 1
2 1
2 2
2 1
1 1
2 2
1 2
2 1
1 2
1 2
2 2
1 2
1 2
2 1
1 2
1 1
2 2
2 2
1 2
2 2
1 2
1 1
1 1
2 2
1 1
2 2
2 1
1 1
2 2
2 2
2 1
1 2
1 2
1 2
1 2
2 2
2 1
2 1
1 2
1 1
1 2
1 1
2 2
2 1
2 1
2 2
2 2
1 1
1 2
2 2
2 2
1 1
1 2
2 1
1 1
2 1
1 1
1 1
2 1
2 1
1 1
1 1
1 2
1 1
2 2
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 2
1 2
2 1
1 2
1 1
1 2
2 1
1 1
2 2
1 1
2 1
1 1
2 1
2 2
1 1
2 1
2 1
2 2
2 1
1 1
1 2
1 2
1 1
2 2
1 2
2 1
2 1
2 2
1 1
2 2
2 2
1 1
2 2
1 2
2 1
2 1
1 2
2 1
2 1
2 1
1 1
1 1
2 1
1 1
1 1
2 2
2 2
1 2
1 2
1 1
1 2
2 2
2 1
2 2
2 1
1 2
1 2
2 2
1 2
2 1
2 2
2 1
1 1
1 1
1 2
1 1
2 1
1 2
2 2
1 1
1 2
1 2
2 1
2 1
1 2
1 1
1 1
2 2
1 1
2 2
2 2
1 2
1 1
1 2
2 2
1 2
2 2
1 1
2 1
2 2
1 2
2 2
1 2
1 2
1 1
1 1
2 2
2 1
2 2
1 1
1 2
2 2
1 1
2 1
2 2
2 1
1 1
2 2
1 2
2 1
2 2
2 1
1 2
1 1
2 1
1 1
1 2
2 2
1 1
1 2
2 2
1 1
1 1
1 1
2 1
1 1
1 2
1 1
2 2
2 2
2 2
1 1
2 2
1 1
1 2
2 1
1 2
2 2
1 2
2 1
2 1
2 2
1 1
1 2
1 1
2 1
1 2
1 1
2 1
1 1
1 2
2 2
1 1
2 2
2 2
2 1
1 1
2 2
2 1
2 1
1 2
2 2
1 2
2 2
2 1
1 1
1 1
1 1
1 2
1 2
2 1
1 1
1 2
1 2
2 1
2 2
1 1
1 2
1 1
2 1
2 1
1 1
1 2
2 1
2 1
1 1
2 1
2 2
1 2
1 2
2 2
2 2
2 1
2 1
1 2
2 2
1 1
1 2
1 1
2 2
2 2
1 1
2 1
2 1
2 1
2 1
1 2
2 1
2 1
1 1
2 1
1 1
1 2
2 1
2 2
1 1
2 2
1 2
1 2
1 1
2 2
2 2
1 1
1 2
1 1
2 2
1 1
1 2
1 2
2 2
1 2
1 1
1 2
1 1
1 1
1 2
1 2
1 2
1 2
1 2
1 2
1 1
2 1
2 2
2 2
1 2
1 2
2 1
2 2
2 1
2 2
2 1
2 2
1 1
2 1
2 1
1 2
2 2
1 2
1 2
1 1
1 1
2 1
2 1
2 1
2 2
1 1
1 1
2 1
2 1
2 2
1 1
2 1
2 1
2 2
1 2
1 2
1 1
1 2
2 1
2 1
1 1
1 1
2 1
2 1
1 1
1 2
1 2
1 1
2 1
1 2
2 1
1 2
1 1
2 1
1 1
2 1
2 2
1 1
1 1
1 2
2 1
1 1
2 2
2 2
1 2
2 1
1 2
2 2
2 2
1 2
1 2
1 1
2 1
1 2
2 1
1 2
2 1
1 1
1 1
2 2
2 1
1 1
2 1
2 1
2 1
2 1
2 1
1 1
1 2
1 1
2 2
2 1
2 2
2 1
1 1
1 1
1 1
1 2
1 2
1 1
2 2
2 1
1 1
2 1
1 1
1 2
2 2
2 2
2 1
2 1
2 1
1 2
2 2
1 1
1 1
1 2
2 2
1 2
2 2
1 2
1 1
1 1
1 1
1 2
2 1
2 1
1 1
2 2
2 1
1 1
2 1
1 2
2 1
1 2
1 1
2 2
2 2
1 1
1 1
1 2
1 1
2 2
1 1
1 1
1 2
1 1
1 2
1 1
2 1
2 1
1 1
1 2
1 1
1 1
1 2
2 2
2 2
1 2
2 2
1 1
2 2
2 1
2 2
1 1
1 2
2 2
1 1
2 2
2 2
1 2
2 2
1 2
1 1
2 2
1 1
1 1
1 1
2 1
1 1
1 1
2 1
1 2
1 2
1 2
1 1
2 2
2 1
2 2
2 2
1 1
2 2
2 1
2 2
2 2
2 1
1 1
1 1
1 2
2 2
2 2
1 1
1 1
1 2
1 2
2 2
1 2
1 1
1 2
1 1
1 2
1 1
2 1
1 2
1 2
2 2
1 2
1 2
1 1
2 2
1 2
2 2
2 2
2 2
2 2
2 2
2 2
1 1
1 1
1 2
1 1
1 1
2 1
2 2
1 1
2 1
1 1
1 1
2 2
1 2
1 2
1 1
2 2
1 1
2 2
2 2
2 2
2 2
1 2
2 1
2 1
2 2
1 2
1 1
2 2
1 1
2 2
1 1
1 1
1 2
1 1
1 2
2 2
1 1
1 2
1 2
1 1
2 1
2 2
2 2
2 1
1 2
2 1
1 2
1 2
2 2
1 2
1 1
2 1
2 2
2 1
2 2
2 1
2 1
1 2
2 1
1 1
2 1
2 1
1 2
1 1
2 1
1 2
2 1
1 2
2 2
2 1
2 1
1 2
2 2
1 2
2 2
2 1
1 1
1 2
1 2
1 1
1 1
1 1
2 2
1 2
1 2
2 1
1 1
2 1
2 2
1 1
2 1
2 1
1 1
1 2
2 1
2 2
2 1
1 2
1 2
2 2
2 1
2 2
1 1
2 1
1 1
1 1
1 1
2 1
1 2
2 1
1 1
1 2
1 2
2 2
1 1
1 2
1 1
1 1
1 1
1 1
2 1
2 2
1 1
1 2
1 1
1 2
2 1
1 1
2 1
2 1
2 1
1 1
2 1
2 2
2 1
2 2
1 1
2 1
1 2
2 2
1 1
2 2
1 1
1 2
1 2
2 1
1 2
1 2
1 1
2 1
1 2
1 1
1 1
1 2
2 2
1 1
2 1
1 2
1 1
1 2
2 2
2 1
1 2
1 2
2 1
2 1
1 2
1 2
2 2
2 1
1 1
1 1
2 1
2 2
1 2
2 2
1 2
1 1
1 2
1 1
2 2
2 1
2 2
2 2
2 1
2 2
2 2
2 1
1 2
2 1
1 1
2 2
1 1
1 2
1 1
1 1
1 2
2 1
2 2
2 1
2 2
1 2
1 2
1 2
2 1
1 1
2 1
1 1
1 1
1 2
2 2
1 2
1 1
1 2
2 2
2 2
1 1
2 1
1 2
2 1
2 2
2 1
2 2
1 1
1 1
2 2
2 2
1 2
1 2
2 1
2 2
1 1
1 2
2 2
2 2
2 2
1 2
2 1
1 2
1 1
1 2
2 2
1 1
1 2
1 2
1 1
2 1
1 1
2 1
2 2
2 1
1 1
1 2
2 2
1 2
2 1
2 1
2 1
1 2
2 2
1 1
2 1
2 2
1 2
1 2
1 1
2 2
2 1
1 2
2 1
2 1
1 1
2 2
2 1
2 1
2 2
1 1
1 2
2 2
2 2
2 2
2 2
1 1
2 2
2 1
1 2
1 1
2 2
2 2
2 1
1 2
1 2
2 2
1 2
1 1
1 2
2 2
2 2
2 1
1 2
1 2
1 2
2 1
1 2
2 1
1 2
1 2
2 1
2 1
2 2
1 1
1 2
1 1
2 2
2 2
1 1
2 1
2 2
1 1
1 2
1 2
2 1
2 2
1 1
2 2
2 1
2 2
2 2
1 2
2 2
2 2
1 1
1 2
1 2
1 1
2 2
2 2
2 1
2 1
1 1
2 1
2 2
2 2
1 2
2 1
2 2
2 1
2 1
2 1
2 1
1 2
2 2
1 2
2 1
1 1
2 2
2 2
2 1
2 2
2 2
1 2
1 1
2 1
2 1
1 1
2 2
2 1
2 1
2 2
2 1
1 2
1 2
2 2
1 1
1 1
2 2
1 1
1 2
1 1
1 2
1 2
1 1
1 1
2 1
1 1
1 1
2 2
1 1
1 1
1 2
1 2
1 1
2 1
2 2
2 1
1 2
1 2
1 1
1 1
2 1
2 2
2 2
1 2
1 2
2 1
2 2
1 2
1 1
1 1
1 2
2 1
2 2
1 2
2 2
2 1
2 2
1 1
2 2
2 1
2 2
2 2
2 1
1 2
1 2
2 1
2 2
2 1
2 1
2 2
1 1
2 2
2 2
1 2
2 2
1 2
1 2
1 2
1 2
2 1
1 2
1 2
1 2
2 2
1 1
2 1
2 1
1 1
2 1
1 2
1 2
2 2
2 2
2 2
2 1
1 1
1 1
2 2
1 1
2 1
2 1
2 1
2 1
2 2
1 2
2 2
2 2
2 2
1 2
2 1
2 1
1 2
2 1
1 2
1 1
2 2
1 2
1 2
2 1
1 1
2 2
2 2
1 1
1 1
1 1
1 2
1 1
2 2
2 1
2 1
1 1
2 1
2 2
1 2
1 1
2 2
1 1
2 2
1 1
2 2
2 2
1 1
2 2
2 2
1 2
2 2
1 2
1 1
1 1
2 1
1 2
2 2
2 1
2 1
1 2
2 1
1 2
2 2
2 2
2 2
1 1
1 1
2 2
2 1
1 2
1 2
1 2
1 1
1 2
1 1
2 2
1 2
2 1
1 2
2 1
2 2
1 2
2 2
1 2
1 1
1 2
2 1
2 1
2 2
2 2
1 2
2 1
2 2
2 1
1 2
1 2
1 1
2 2
2 2
1 1
1 1
2 2
1 2
2 1
2 1
1 1
2 2
2 1
1 1
2 2
1 2
1 1
2 1
1 1
1 1
2 1
2 1
2 2
2 1
1 2
2 2
1 2
2 1
2 1
2 1
1 2
2 1
1 1
1 1
1 2
2 2
2 1
1 1
2 1
2 2
1 2
1 1
2 1
1 2
1 1
2 2
1 1
2 2
2 1
1 1
1 1
2 2
1 1
1 2
2 2
2 1
2 1
1 1
1 1
1 2
2 2
1 1
2 2
1 2
1 1
1 2
1 2
2 1
1 1
2 1
1 2
1 2
1 2
2 2
1 1
2 1
1 2
2 1
1 1
1 1
1 1
1 2
2 1
1 2
1 2
1 1
2 2
2 1
1 2
2 1
2 1
2 1
2 2
2 1
1 2
1 2
2 2
1 2
2 1
2 1
1 2
1 1
2 2
2 1
2 1
1 1
1 2
2 1
1 2
2 1
1 1
2 2
1 2
2 2
2 1
2 2
2 2
2 1
1 1
1 1
2 1
1 1
2 2
2 1
1 1
1 1
1 1
1 1
2 2
2 1
1 2
2 1
1 2
2 2
2 1
2 1
2 1
1 2
2 1
1 2
2 2
1 1
2 1
1 2
1 1
1 1
2 2
2 2
1 2
1 1
1 1
1 1
1 1
2 1
2 1
1 2
1 2
1 2
2 1
2 1
1 1
2 2
1 2
2 1
1 2
1 2
2 2
2 2
2 1
1 2
1 1
2 1
2 2
1 2
2 2
2 2
1 2
1 1
1 2
2 1
1 1
2 1
1 1
2 1
2 2
2 2
1 2
2 2
1 2
1 1
2 1
1 1
1 1
1 1
1 1
2 1
2 2
2 1
1 1
1 1
1 2
1 2
2 1
1 2
2 1
1 2
2 1
2 1
1 2
1 2
2 1
2 1
1 1
1 2
2 1
1 1
1 1
1 2
2 1
2 2
1 1
1 2
2 1
1 1
2 2
1 2
2 2
1 1
1 2
1 2
1 1
2 2
1 2
2 2
2 1
2 2
2 1
2 2
1 1
1 2
1 1
2 2
1 2
1 1
2 2
1 2
1 1
2 2
1 1
2 1
1 2
2 2
1 1
2 1
2 1
2 1
2 1
2 2
1 2
2 2
1 1
1 1
1 2
2 1
2 2
1 1
2 1
2 1
2 1
1 2
2 1
2 2
1 2
1 2
1 2
2 2
2 1
1 1
2 1
1 2
1 2
1 2
1 2
1 2
1 2
2 2
2 2
1 1
1 2
1 2
1 2
2 1
2 1
2 1
2 1
2 2
2 1
1 1
2 2
1 1
1 1
2 1
1 1
2 2
2 1
1 2
1 2
2 1
1 2
1 1
1 2
2 1
2 1
1 1
2 1
1 1
1 2
1 2
1 1
2 1
2 1
1 1
1 2
1 2
2 1
2 2
1 2
2 1
1 1
1 2
2 2
1 2
2 2
1 2
2 2
1 1
1 2
2 2
2 2
1 2
1 2
1 1
1 2
1 1
1 1
2 2
2 2
2 2
2 1
1 1
1 2
2 2
2 2
2 2
1 1
1 1
1 2
1 1
1 2
1 2
2 2
1 2
1 2
1 2
2 2
1 1
1 2
1 2
1 2
2 2
2 1
1 1
1 1
2 1
1 1
1 2
2 1
1 1
2 1
1 2
2 2
2 1
2 2
1 2
2 1
2 2
2 1
2 1
2 2
2 2
2 2
1 2
2 1
2 2
1 2
1 1
1 1
1 1
2 2
2 2
1 1
2 2
1 2
1 2
1 1
1 1
1 2
2 2
1 2
1 2
2 1
1 1
1 1
1 2
1 2
1 1
2 2
1 2
1 2
2 2
2 1
2 1
2 1
2 2
2 2
1 1
1 2
2 1
1 1
1 1
1 1
2 1
2 2
2 2
2 1
2 2
1 2
2 2
1 2
1 2
1 2
1 1
1 1
1 2
2 1
1 2
2 1
2 2
1 1
1 1
1 2
1 1
1 1
2 1
1 2
1 2
2 2
1 2
1 1
1 1
1 2
2 1
2 2
2 1
2 2
2 2
1 2
2 2
2 2
1 1
1 1
2 2
2 1
2 2
2 1
2 1
1 1
2 2
2 2
1 2
1 1
2 1
2 2
2 1
2 1
1 1
1 2
1 1
2 2
1 1
2 1
1 1
1 1
2 1
2 2
2 1
2 1
1 1
2 1
2 1
1 1
2 2
1 1
2 2
2 1
1 1
1 1
2 1
1 1
1 2
1 1
2 2
2 1
2 2
1 2
1 2
1 2
2 1
2 2
1 2
1 1
1 1
1 2
1 2
2 2
1 1
1 2
1 1
2 2
2 2
2 2
1 1
2 2
2 1
1 2
2 2
1 1
1 1
2 2
2 2
2 2
1 2
2 1
2 1
1 1
2 2
2 1
2 1
1 2
2 2
2 1
1 2
2 1
2 2
1 2
2 2
1 2
1 1
1 1
2 1
2 1
2 1
1 1
1 1
1 2
1 1
1 1
1 1
2 2
2 1
1 1
1 2
2 2
1 2
2 1
2 2
2 1
2 2
2 2
2 2
1 1
2 2
1 1
2 2
2 1
2 1
1 1
1 2
2 2
2 1
2 2
2 2
2 1
2 2
1 1
2 1
1 1
1 2
1 2
1 1
1 2
1 1
1 1
2 1
2 2
1 2
1 1
2 2
1 1
1 1
1 2
1 2
1 2
1 2
2 1
1 2
1 1
2 1
2 2
2 1
1 2
1 2
1 1
1 1
2 1
2 1
2 2
1 2
2 2
1 1
2 2
2 2
1 1
1 1
1 1
2 2
1 2
2 2
1 2
1 2
1 2
2 2
2 1
2 1
2 2
2 2
1 1
1 2
1 2
2 1
1 2
1 2
1 1
2 2
1 2
1 2
1 1
1 1
2 1
1 1
2 2
1 2
1 2
1 1
2 1
1 2
1 2
2 1
2 2
1 1
2 2
1 1
2 1
1 2
2 2
2 2
2 2
1 2
1 1
2 2
1 1
1 1
2 2
1 2
2 2
2 1
2 1
2 1
1 2
2 2
2 2
1 1
1 1
2 1
1 1
2 2
2 1
2 1
2 2
1 1
1 1
2 1
1 2
2 2
1 2
2 2
1 1
2 1
1 2
1 2
1 1
1 2
2 1
2 2
2 2
1 2
2 1
1 1
2 1
2 1
2 1
2 1
2 2
2 1
2 1
2 2
2 2
1 2
2 2
2 2
1 1
2 2
1 1
1 2
1 1
1 2
1 2
2 2
2 2
1 1
2 1
1 1
1 1
1 2
2 2
2 2
2 1
2 1
2 2
2 2
1 1
1 1
1 1
2 1
2 1
2 2
1 1
1 2
1 1
2 2
1 1
1 2
2 1
2 2
2 1
1 1
1 1
2 2
1 2
1 2
1 2
2 1
2 1
2 1
2 2
1 1
1 1
1 2
2 2
1 1
1 2
1 1
1 2
2 1
2 1
1 1
1 2
2 2
1 2
2 2
1 1
1 2
1 1
1 1
2 2
1 2
2 2
1 2
1 2
2 1
2 1
2 1
2 1
1 2
1 1
2 2
2 2
2 2
1 2
1 1
1 2
1 1
1 2
1 1
1 1
1 2
1 1
1 1
2 1
2 2
1 2
1 1
1 1
2 1
2 1
1 1
2 2
1 2
1 1
1 1
1 1
1 1
2 1
2 2
2 1
2 2
1 1
2 2
1 1
2 1
2 1
1 1
2 1
2 1
2 2
1 1
1 1
1 2
1 2
1 2
1 1
2 1
1 2
1 2
2 2
2 2
2 1
1 2
1 1
2 1
2 2
1 1
2 2
1 1
2 1
1 2
1 2
1 1
2 2
2 1
2 1
2 1
2 1
1 2
1 2
1 2
1 2
2 2
1 1
2 2
2 2
2 2
1 2
1 2
2 1
1 1
1 2
2 2
2 2
1 2
2 2
2 1
1 2
2 2
1 1
1 2
1 1
2 2
1 1
2 1
1 1
1 2
2 1
2 1
2 1
1 2
2 1
2 2
1 2
2 1
1 2
2 1
1 2
1 2
1 2
2 1
2 2
2 1
2 1
1 2
2 2
2 2
1 2
2 1
1 1
2 1
2 1
2 1
2 1
2 2
1 2
2 1
2 2
2 2
2 1
2 1
1 2
2 1
1 2
2 1
1 2
2 1
1 1
1 2
2 1
2 2
2 2
2 2
1 2
1 1
2 2
2 1
2 1
1 1
1 1
1 2
1 1
1 2
1 2
1 1
1 1
1 2
1 1
2 1
1 2
1 2
2 2
1 2
2 1
2 2
2 1
1 1
1 1
2 1
2 2
1 2
1 2
2 1
1 2
1 2
2 2
1 2
1 2
1 2
1 2
1 1
2 2
2 2
2 1
1 1
1 1
1 1
1 2
2 1
1 1
1 2
1 2
2 2
2 1
2 1
2 2
1 2
2 1
2 1
2 1
1 1
2 1
1 2
2 2
1 1
1 1
2 2
2 2
1 1
2 1
2 2
1 2
1 1
2 2
1 1
2 1
1 1
1 1
1 2
2 1
2 2
2 2
1 1
1 2
1 1
1 1
1 2
2 2
2 2
2 2
1 2
2 1
2 2
2 1
1 2
1 1
1 1
1 2
2 2
1 2
2 1
1 1
1 2
2 1
2 1
2 2
1 1
2 2
2 2
1 1
1 2
2 1
1 1
2 1
2 1
2 2
2 2
2 1
1 2
1 2
2 2
2 2
1 1
2 1
2 2
1 2
1 1
2 1
1 1
2 2
1 1
2 1
2 1
1 2
1 1
1 2
2 1
2 2
2 2
2 1
2 1
2 1
1 2
2 1
1 1
1 2
1 2
1 2
1 2
1 1
1 2
1 1
2 2
1 1
2 1
2 2
2 2
1 1
1 1
1 2
1 2
1 1
1 1
1 2
2 1
1 2
1 2
2 1
1 2
1 2
1 1
1 2
1 1
2 1
2 1
1 1
2 2
2 1
1 2
1 2
2 2
2 2
1 2
2 2
1 1
2 2
1 2
1 2
1 2
1 2
2 2
1 1
1 2
1 1
2 2
2 2
2 2
1 2
2 1
1 1
1 2
2 1
1 2
1 2
2 1
2 1
2 2
1 1
1 1
2 1
2 1
1 2
1 1
1 2
1 2
1 1
2 2
2 1
1 1
2 2
1 2
2 1
2 1
2 1
2 1
1 1
2 1
2 2
1 2
1 1
1 2
2 2
2 2
2 1
1 2
1 1
1 2
1 2
1 2
2 2
1 1
2 2
1 1
1 1
1 1
1 1
2 2
1 1
2 2
2 1
2 2
1 2
1 1
2 2
1 2
1 2
1 1
1 2
1 2
2 2
1 1
1 2
1 2
1 2
2 1
1 1
2 2
1 1
2 1
2 2
1 2
1 1
1 2
1 1
1 1
1 2
1 1
1 1
1 2
2 2
2 2
1 1
2 2
1 2
2 1
2 1
2 2
1 1
1 2
1 2
1 1
1 1
1 1
1 1
2 2
1 1
1 1
2 2
1 2
1 1
1 1
2 1
2 2
1 1
1 2
1 1
2 1
1 1
2 2
2 1
2 1
2 1
1 2
1 2
2 2
1 2
1 2
2 2
2 1
2 1
2 1
1 1
1 1
2 1
1 2
2 1
2 2
1 2
1 2
2 1
1 2
2 1
2 1
2 1
1 2
2 1
1 2
2 1
1 1
2 1
2 2
2 2
1 2
2 1
2 2
2 1
1 1
2 1
1 2
1 1
2 1
1 1
2 1
1 2
2 2
1 1
2 2
1 2
1 1
2 1
1 1
2 2
1 1
1 1
2 1
2 1
1 1
1 2
1 2
2 1
2 1
1 2
1 1
2 1
2 2
2 1
1 2
1 1
2 2
1 2
2 2
1 1
2 2
1 2
2 2
1 1
2 2
2 1
2 2
1 2
2 1
2 1
1 1
2 2
1 1
2 2
2 1
1 1
1 2
2 1
2 1
1 1
2 1
2 2
2 1
2 2
2 2
1 1
1 2
1 2
1 1
1 1
2 1
2 2
1 2
2 1
2 2
2 1
1 1
2 2
1 1
1 2
2 2
2 2
2 1
1 2
2 2
2 2
2 1
2 2
2 2
2 1
2 1
2 1
2 2
2 1
2 1
2 1
1 1
1 2
2 1
1 1
2 2
2 2
2 2
2 1
2 1
1 1
1 1
1 2
2 1
2 1
2 1
1 2
1 1
1 2
2 2
1 1
2 2
2 2
2 1
2 2
1 1
2 2
2 1
2 1
2 2
1 1
1 2
1 1
1 1
2 1
1 2
2 2
1 2
1 1
1 2
1 2
1 2
2 1
2 2
2 2
1 1
2 2
1 1
2 1
2 2
1 2
1 1
1 1
2 2
1 1
1 1
1 2
1 2
1 1
2 2
2 1
2 1
1 2
1 2
1 1
1 2
2 1
2 1
1 2
1 1
1 2
2 1
1 1
1 1
2 1
1 2
1 1
1 2
1 2
2 1
1 2
1 1
2 2
2 1
1 2
1 1
1 1
2 2
2 1
1 1
2 2
1 1
1 1
1 1
2 2
1 1
2 1
1 1
1 2
2 2
1 1
1 1
2 2
2 1
2 1
1 2
2 1
1 1
1 1
2 1
2 2
1 1
1 1
1 2
1 1
2 2
2 2
2 2
1 2
2 2
2 2
2 2
2 1
2 2
2 1
2 1
1 2
2 2
2 2
2 2
1 1
1 2
2 1
1 2
2 2
2 2
1 2
2 2
1 2
2 1
2 1
1 2
1 1
2 2
1 1
2 1
2 2
2 2
1 1
2 1
2 2
2 2
2 2
1 1
1 2
1 1
1 2
1 1
1 2
2 1
2 1
2 1
1 1
2 1
2 2
1 1
2 1
1 1
1 1
2 2
2 1
2 2
1 1
2 1
1 2
2 2
2 1
1 1
2 1
1 2
1 1
2 2
1 1
2 2
2 1
1 2
2 2
2 2
2 2
2 1
1 1
1 1
1 2
1 2
1 1
1 1
2 2
1 2
2 1
2 1
2 2
1 2
1 2
1 1
1 2
1 2
2 1
2 1
2 1
1 2
1 2
2 1
2 2
1 1
2 1
1 1
1 2
2 2
2 2
2 1
1 1
2 2
1 2
1 1
2 2
2 2
1 2
2 2
1 1
1 1
1 1
1 2
2 1
1 2
2 1
1 2
2 1
1 2
1 1
1 1
2 2
2 1
1 1
1 1
1 2
2 2
2 1
2 1
2 1
1 2
1 2
2 2
2 2
2 2
2 1
1 1
1 1
2 1
1 1
2 2
2 1
2 2
1 1
1 1
1 2
1 2
1 2
1 2
2 2
1 1
1 2
2 1
2 2
1 2
1 2
2 1
2 1
2 1
2 2
2 2
1 1
2 1
1 2
1 2
2 1
2 2
2 2
1 1
1 2
1 2
1 2
1 2
1 1
2 1
2 1
2 2
2 1
2 1
1 1
2 1
2 1
1 1
1 1
1 2
1 1
2 2
1 1
1 1
2 1
1 2
1 2
2 2
1 2
1 2
1 1
1 1
2 2
2 1
1 1
1 1
1 2
2 1
1 2
1 1
2 1
2 2
1 2
1 2
1 1
1 2
1 1
1 2
1 1
1 1
2 1
1 2
2 1
2 2
2 2
2 2
1 1
1 2
1 1
1 2
2 1
2 2
1 2
2 1
1 1
2 1
1 1
2 1
1 2
2 2
1 2
1 2
1 2
1 1
2 1
1 1
2 2
2 2
1 1
2 2
2 1
2 2
1 2
2 1
1 2
2 1
2 2
1 2
2 1
1 1
2 2
2 2
1 1
2 1
1 2
2 1
2 1
2 1
2 2
2 1
1 2
2 2
1 1
2 1
2 1
2 1
2 2
2 1
1 1
1 1
1 2
2 2
2 2
1 2
2 1
1 1
1 1
1 2
1 2
2 2
1 2
2 1
2 1
1 2
2 2
2 1
1 2
2 2
1 2
2 1
2 2
2 2
1 1
1 2
2 1
1 2
1 2
2 2
1 2
2 1
1 1
1 2
1 2
2 1
1 2
1 1
2 2
1 2
1 1
2 1
1 1
1 1
1 2
1 1
2 2
2 2
2 2
2 2
1 2
2 1
1 1
1 2
2 2
1 1
1 1
2 2
2 1
1 1
2 2
2 2
2 1
2 2
2 2
1 1
2 2
2 2
1 1
1 1
2 2
2 2
2 1
2 2
2 2
1 1
1 1
1 1
2 2
2 2
1 2
2 2
2 1
2 2
2 1
1 1
2 2
1 1
2 2
2 2
2 2
1 2
2 2
2 2
1 2
2 2
1 1
1 1
1 1
2 1
1 1
2 1
2 2
2 1
2 1
2 2
1 2
2 2
2 1
2 2
1 1
1 1
2 1
2 2
2 2
1 1
1 1
2 1
2 1
1 1
2 1
2 2
1 1
2 1
2 2
1 2
1 1
1 2
1 1
2 2
2 1
1 1
2 2
1 2
1 1
1 2
2 2
2 2
1 1
1 1
1 2
2 2
1 1
1 1
1 2
2 1
2 2
2 1
1 1
2 1
1 1
2 1
1 2
1 1
2 2
2 2
2 2
2 2
1 2
1 1
1 1
1 1
2 2
1 2
2 1
2 1
2 1
2 1
2 1
2 2
1 1
2 2
1 2
2 2
2 1
2 1
1 1
1 2
1 2
1 1
1 1
1 1
1 1
2 2
2 1
2 1
2 2
2 1
2 2
1 1
2 1
2 2
2 2
1 2
2 2
1 1
1 2
1 2
1 2
2 1
1 1
2 1
1 2
1 2
2 1
1 1
1 2
2 1
2 1
2 1
2 1
2 1
2 1
2 2
2 2
2 2
2 2
2 1
1 2
2 1
1 1
2 2
1 2
1 2
2 1
1 1
1 1
2 2
1 2
2 1
1 2
1 2
1 2
2 1
1 2
2 1
2 2
1 1
2 2
2 2
1 1
1 2
2 2
2 1
1 1
2 2
1 1
2 1
2 1
2 2
2 1
2 1
2 1
2 2
2 1
2 1
2 2
2 2
2 1
2 1
1 2
2 1
2 1
1 1
2 2
2 1
1 2
2 1
1 1
2 2
2 1
2 2
2 2
1 2
2 2
1 1
1 1
2 2
2 2
2 2
1 2
2 1
1 2
2 1
1 2
1 2
2 1
2 1
2 1
1 2
2 2
2 1
2 2
1 1
1 1
1 2
2 2
1 2
1 1
2 2
2 1
1 1
1 2
2 2
2 2
1 1
2 2
2 2
2 1
1 2
2 1
1 2
2 1
1 2
1 1
1 2
2 1
2 1
2 2
1 1
1 1
1 2
2 2
1 2
1 1
1 1
2 1
2 2
2 2
2 1
2 2
2 1
1 1
1 2
2 2
2 2
1 1
2 1
2 1
1 2
2 2
1 2
1 2
1 2
1 2
2 1
2 2
2 2
1 1
2 1
1 2
2 1
1 2
2 1
2 2
1 2
1 2
1 1
1 2
1 2
1 2
2 2
2 1
2 1
1 2
2 2
1 1
1 1
2 1
2 1
1 1
1 1
1 1
2 2
1 2
2 2
1 1
1 1
1 2
1 2
2 2
2 1
2 1
1 2
1 1
1 1
1 1
1 2
1 1
1 1
2 1
1 2
1 1
2 2
2 2
2 1
2 1
1 1
2 1
1 1
1 1
1 2
1 1
2 1
2 1
2 1
2 1
2 2
2 1
1 2
2 1
2 1
1 2
2 1
2 1
2 2
1 1
2 2
2 2
2 1
1 2
2 1
2 1
1 2
2 1
2 2
2 1
2 1
1 1
1 2
1 2
2 2
1 2
1 1
2 2
1 2
2 2
1 2
2 1
2 1
2 2
1 1
2 2
2 2
2 1
1 1
2 2
2 2
2 1
1 1
1 1
2 1
2 2
2 2
2 1
2 1
1 1
2 2
1 2
2 2
1 2
2 1
1 1
1 1
2 2
1 1
2 1
2 2
2 1
1 1
2 2
2 1
1 1
2 1
1 2
1 2
2 2
2 2
2 1
1 1
2 2
2 1
2 1
1 2
1 2
2 2
2 1
2 2
1 2
1 1
2 1
1 1
1 2
1 2
1 1
1 1
2 1
1 1
2 2
2 2
2 2
2 1
1 1
2 2
2 1
2 2
1 1
1 2
2 1
2 1
1 2
2 2
1 1
2 1
1 2
2 1
1 1
2 1
1 2
1 1
1 2
2 2
2 2
1 2
2 1
2 2
2 2
2 1
1 2
1 1
2 1
2 2
2 2
1 2
1 2
1 2
1 1
2 2
1 1
1 2
1 1
2 1
1 1
2 2
1 2
1 2
1 2
2 1
2 2
2 1
1 1
1 2
2 1
2 1
1 2
2 1
2 2
1 2
2 1
2 2
2 2
1 1
1 1
1 1
2 1
2 1
2 1
1 2
2 2
1 1
1 2
2 1
2 2
1 1
2 2
2 2
1 2
2 2
2 2
2 2
1 2
2 1
1 2
1 1
2 2
1 1
2 2
1 1
2 2
2 1
2 2
2 2
1 1
2 1
1 1
1 1
2 1
1 1
2 1
1 2
2 1
2 1
1 2
2 2
2 1
2 2
1 2
1 2
2 1
2 1
1 2
2 2
1 1
2 1
2 2
2 1
1 2
2 1
1 2
2 2
2 1
2 2
2 1
2 2
2 2
1 2
1 2
2 1
1 2
2 2
1 2
2 2
2 2
2 1
2 1
1 2
1 2
1 2
1 2
1 2
2 1
1 1
1 2
2 2
1 2
2 1
1 1
1 1
1 2
2 2
2 2
2 2
2 1
2 1
2 2
1 1
2 1
2 2
2 1
2 2
1 1
1 2
1 1
1 2
2 1
1 1
1 1
1 2
2 1
1 2
2 2
1 1
1 1
2 2
1 1
1 2
1 2
1 1
2 1
1 1
2 2
2 1
1 2
2 2
2 1
2 1
1 2
1 2
2 1
2 1
1 1
2 2
1 2
2 2
2 1
2 1
2 1
2 1
1 1
2 2
1 1
2 1
1 2
1 1
1 1
2 1
1 2
1 2
2 2
1 2
2 1
1 2
2 2
1 2
1 2
2 1
1 1
2 2
2 1
2 2
2 1
1 1
1 2
2 1
2 1
1 1
1 2
1 2
2 2
1 2
2 2
2 1
1 2
2 1
2 2
1 2
1 2
2 2
1 1
1 1
2 1
2 2
1 2
2 1
1 2
2 2
1 2
1 1
2 2
2 2
1 1
2 1
2 2
2 1
1 2
1 2
1 2
1 1
1 2
2 1
1 2
2 1
2 1
1 1
2 2
2 1
2 1
1 1
2 1
1 1
1 2
2 1
2 1
2 1
2 1
1 2
2 1
2 2
1 1
1 1
1 1
1 2
2 2
1 1
1 2
2 1
2 1
1 2
1 2
2 2
1 2
1 2
1 2
2 2
1 1
2 2
2 1
2 1
2 2
1 1
2 2
1 1
1 1
1 1
1 1
1 2
1 2
1 1
2 1
2 2
1 1
2 1
2 2
2 2
1 1
1 1
1 1
1 1
1 2
2 1
1 1
2 1
2 2
2 2
1 2
2 2
2 2
1 2
2 1
2 2
2 1
1 2
2 1
1 1
2 1
1 1
2 2
1 2
2 2
2 2
1 1
2 2
1 1
2 1
1 2
2 2
2 2
1 2
2 1
2 2
1 1
2 2
2 2
1 2
1 1
2 2
1 2
1 1
1 1
2 1
1 1
1 2
1 2
2 2
1 2
1 2
2 2
1 2
1 1
1 1
1 1
2 2
1 1
2 2
1 2
1 2
1 1
1 2
2 2
1 1
1 1
2 2
1 1
1 1
1 2
1 2
2 1
2 1
1 2
2 1
2 2
1 1
1 1
2 2
1 2
2 1
1 1
2 2
2 1
2 1
1 1
2 1
1 1
1 2
2 1
2 2
1 1
2 1
1 2
2 1
2 2
2 1
2 1
1 1
1 1
2 2
2 2
1 2
2 1
2 1
2 2
2 2
2 1
1 2
1 1
2 1
2 2
2 1
2 2
2 1
2 1
1 2
1 2
2 2
2 2
2 1
2 1
1 1
1 1
2 2
2 1
1 2
1 2
2 2
2 1
2 1
2 2
2 2
1 1
2 2
2 1
2 1
2 1
2 2
1 1
2 2
2 2
1 1
2 2
1 2
2 2
2 1
1 2
1 2
1 1
2 1
2 1
2 1
2 1
1 1
2 1
2 1
1 1
2 1
2 1
1 1
2 1
2 2
2 1
2 1
1 1
2 1
1 1
2 2
1 1
1 2
1 2
2 2
1 2
2 1
2 2
1 1
1 1
2 2
2 2
2 1
2 1
1 2
1 2
2 1
2 1
2 2
2 1
2 1
2 1
1 2
1 1
2 1
2 1
1 2
1 1
1 1
1 1
1 2
2 2
1 2
1 1
2 2
1 1
1 1
2 1
2 1
1 2
2 1
1 1
2 2
1 1
2 1
2 2
1 2
1 1
2 1
2 1
1 2
2 2
2 2
1 2
1 1
2 2
1 1
2 2
2 2
2 2
2 1
1 2
1 2
1 2
1 2
2 2
2 2
2 2
2 1
1 2
1 1
2 2
2 2
1 2
1 2
2 2
2 2
2 2
1 2
1 2
1 2
2 1
1 2
1 2
1 2
2 1
2 1
2 2
1 1
2 1
2 2
1 1
2 1
1 2
1 1
1 2
1 2
1 2
2 1
1 2
2 1
1 1
1 2
2 1
2 2
2 2
2 1
1 2
1 1
2 1
2 2
1 1
2 1
2 1
2 1
1 2
1 1
1 2
2 2
2 1
1 1
1 1
1 2
1 2
2 2
2 2
1 2
1 1
1 1
2 1
1 2
2 2
1 1
2 2
1 2
2 1
1 2
2 1
2 2
2 1
1 1
1 1
2 2
1 1
2 2
2 1
1 1
1 1
1 1
1 1
1 1
1 2
1 1
1 2
1 1
1 1
1 2
2 1
1 2
2 2
1 1
2 1
2 1
2 1
1 1
1 2
1 2
2 2
1 2
2 2
1 1
2 2
1 2
1 1
1 2
2 2
2 2
1 2
2 1
2 1
2 1
1 2
1 2
2 1
1 1
2 1
2 1
2 2
1 1
1 1
2 1
1 2
1 2
1 2
1 1
1 2
2 2
2 1
2 1
2 1
1 2
1 1
1 2
2 2
1 2
2 2
1 2
2 1
2 1
2 1
2 1
1 2
1 2
1 1
2 2
1 2
2 1
2 2
1 1
1 1
2 1
2 1
1 1
2 1
2 1
1 1
2 1
1 1
2 1
2 1
1 1
2 2
1 2
2 2
1 1
2 2
1 2
2 2
2 1
2 2
2 2
2 1
2 2
1 2
1 1
1 2
2 1
2 1
2 1
1 1
2 1
1 2
2 1
1 1
2 2
1 1
2 1
1 2
1 1
1 1
2 1
1 2
1 1
1 1
2 2
2 2
1 2
2 1
1 2
1 1
2 2
1 2
1 2
1 1
1 1
1 1
1 1
1 1
2 2
2 2
2 1
2 2
1 1
1 2
1 1
2 1
2 1
2 2
1 2
1 2
2 1
1 2
2 1
1 2
1 2
1 1
2 2
1 2
1 1
1 2
2 1
2 2
2 1
1 2
1 2
2 2
2 1
2 1
2 2
1 1
1 2
1 1
1 2
1 2
2 1
1 2
2 2
2 2
1 1
1 1
1 1
1 1
2 2
2 1
1 1
1 1
1 1
1 2
2 1
1 1
1 1
1 2
1 1
1 1
1 1
2 1
2 1
1 1
2 2
2 2
1 2
1 2
2 2
1 2
1 2
2 2
1 2
1 2
1 2
2 1
1 2
1 2
2 1
2 1
2 2
1 2
2 1
1 2
1 2
1 2
2 2
2 2
1 2
2 1
1 1
1 2
2 2
1 1
2 1
1 1
1 2
1 2
1 2
1 1
1 2
2 2
2 1
1 1
2 2
1 1
1 1
2 1
2 1
1 1
2 1
1 2
1 1
2 2
2 2
1 2
1 2
1 2
2 2
1 1
1 1
1 1
2 1
1 1
1 1
2 2
1 2
2 2
2 2
1 2
1 2
1 1
1 1
2 2
1 1
1 2
2 2
2 1
2 1
2 2
2 1
2 1
2 1
2 2
1 2
2 2
1 1
1 2
2 2
1 2
1 1
1 1
2 2
2 1
2 1
2 1
1 2
2 1
2 1
2 1
1 2
2 2
2 2
2 2
2 2
1 1
1 2
2 2
1 1
1 2
2 1
2 2
2 2
1 1
1 2
2 1
1 1
1 1
2 2
1 2
2 2
2 2
1 1
2 1
1 2
1 2
2 2
1 2
1 1
2 1
2 1
2 2
2 2
2 1
1 1
1 1
1 1
1 2
2 2
1 2
2 1
1 1
2 2
1 2
2 2
1 1
1 1
1 1
2 2
1 2
2 1
2 1
2 1
1 1
1 1
2 2
1 2
2 2
2 2
2 1
1 2
2 1
2 1
2 2
1 1
1 2
2 2
2 2
2 2
1 2
2 1
2 2
2 2
2 1
1 2
2 1
2 2
2 1
1 2
2 1
1 1
1 1
1 1
2 2
1 2
1 2
1 2
2 1
2 1
1 2
2 1
1 1
1 1
1 1
2 2
1 2
2 2
1 2
1 1
2 1
2 2
2 1
1 2
1 1
2 2
2 1
2 1
1 2
2 2
2 2
2 1
2 1
2 1
1 1
1 2
2 2
2 2
1 2
2 2
2 1
1 2
2 1
1 2
1 1
2 1
1 2
2 2
2 1
1 2
2 1
1 2
1 2
1 1
2 2
1 1
1 1
1 2
1 2
1 1
2 1
1 1
2 1
2 2
2 2
2 1
1 2
1 2
2 1
2 2
2 2
1 2
2 2
1 2
2 1
2 2
2 2
1 2
1 1
1 1
2 1
2 1
1 1
2 1
2 1
2 1
1 1
1 1
1 2
1 2
1 1
2 1
2 2
1 2
1 1
2 1
1 1
2 1
2 2
1 2
2 1
1 2
1 2
2 1
2 2
2 1
2 1
2 1
2 2
1 2
2 2
2 1
2 1
2 2
1 1
2 1
2 1
1 1
1 2
1 1
1 2
2 2
1 2
1 2
2 2
2 2
1 2
1 1
2 1
2 2
1 1
1 2
1 2
2 2
1 1
2 2
1 1
1 2
1 1
1 1
2 1
2 2
2 1
1 1
2 1
2 2
2 2
1 1
1 2
2 2
1 1
1 1
2 1
1 2
1 1
2 1
1 1
2 2
2 1
1 1
2 1
2 1
2 1
2 2
1 1
1 1
1 1
2 2
1 1
1 1
2 2
1 2
2 2
2 1
1 2
1 1
1 2
1 2
2 1
1 1
1 2
2 1
2 2
2 1
1 1
1 2
2 1
2 2
2 2
1 1
2 1
1 2
1 1
2 1
1 2
2 1
1 1
2 1
1 1
1 1
2 2
2 2
1 2
1 2
2 1
1 1
1 1
1 1
1 1
1 1
2 2
1 2
2 2
2 2
2 1
2 2
1 1
2 2
1 2
2 2
1 1
1 1
1 1
1 1
1 1
1 1
2 1
1 2
1 2
1 1
2 2
1 1
2 2
1 2
1 1
2 2
2 1
2 1
1 2
2 2
2 2
1 1
1 1
2 2
2 1
2 1
2 2
1 2
2 2
1 1
2 2
2 1
2 2
2 1
1 2
2 1
2 1
2 2
1 2
1 2
2 1
2 1
1 1
1 2
2 2
1 1
2 2
1 2
2 1
1 2
2 1
1 2
2 1
1 1
2 2
2 1
2 1
1 2
1 2
1 1
2 1
1 2
1 2
1 2
1 2
2 1
1 1
1 1
1 1
1 2
2 2
2 1
1 1
2 1
2 2
2 2
2 2
1 2
1 1
2 1
1 2
2 2
2 2
2 1
1 2
1 2
1 1
1 2
2 2
2 1
2 2
2 1
2 2
2 2
1 1
1 2
2 1
1 2
1 2
2 1
2 2
2 1
2 2
2 2
2 2
2 2
2 1
1 1
2 1
2 2
1 1
1 1
1 1
1 1
2 1
2 2
1 1
2 2
2 2
1 2
1 2
2 1
2 1
2 1
2 1
2 2
1 1
2 1
1 2
2 1
2 2
2 2
2 2
1 1
1 2
2 1
2 2
2 1
2 1
1 1
2 2
1 2
1 1
2 2
1 1
1 1
2 1
1 1
2 1
2 2
1 1
2 2
1 1
2 2
2 2
2 1
2 2
1 1
1 2
1 2
1 2
1 1
1 1
1 1
2 2
1 2
2 1
1 2
1 2
1 2
1 1
1 2
2 1
2 1
2 2
2 1
1 2
2 2
2 2
2 1
1 1
1 2
1 2
1 2
1 2
2 2
2 1
1 1
2 2
2 2
2 2
2 1
1 1
1 2
1 2
2 2
1 1
1 1
1 2
2 1
2 2
1 1
1 1
2 1
2 2
2 1
2 1
2 2
2 1
1 1
1 1
1 1
1 1
2 2
2 2
2 1
1 2
1 2
2 2
2 2
2 1
1 1
2 2
2 1
1 1
1 2
1 2
1 1
1 2
2 2
2 1
1 1
1 1
1 2
2 1
2 1
2 1
1 1
2 1
2 1
2 2
1 1
1 2
2 2
2 1
2 2
1 1
2 2
1 1
2 2
1 2
1 1
2 2
1 1
2 1
2 1
2 1
2 2
2 2
2 2
2 2
2 2
1 2
1 1
2 1
2 1
2 1
1 1
1 2
1 1
1 1
1 1
2 1
1 2
1 2
2 2
1 2
1 1
1 2
2 1
1 1
1 1
1 1
2 2
2 1
1 1
2 1
2 1
2 2
2 2
2 2
1 2
2 1
2 1
1 2
1 1
1 2
1 2
1 1
1 2
2 1
1 1
2 1
2 2
1 1
1 1
2 1
2 1
2 2
2 1
2 1
2 2
2 1
1 2
1 2
1 2
2 2
1 2
2 2
1 2
2 1
1 1
2 1
2 1
1 1
2 2
1 2
1 1
1 2
2 2
1 1
2 2
2 2
2 2
1 1
1 1
2 1
2 1
1 2
1 1
2 1
1 2
2 1
1 2
2 1
1 1
2 1
2 2
1 1
1 1
2 2
2 2
2 2
1 2
2 1
1 2
2 2
2 2
2 2
1 2
2 2
2 2
2 2
1 1
2 1
1 2
2 2
1 1
2 2
2 1
1 2
1 2
2 2
1 1
2 1
1 2
2 1
2 1
2 1
1 1
2 2
2 2
2 2
2 1
2 2
2 2
1 1
1 2
1 1
2 1
2 1
1 2
2 2
2 1
2 2
1 1
1 1
1 1
1 1
1 1
1 2
2 2
1 2
1 2
1 2
2 2
1 1
1 2
1 1
1 2
2 1
1 1
1 1
2 2
1 1
1 2
2 2
2 1
2 2
2 1
2 1
1 2
2 2
2 2
1 2
2 1
2 1
2 2
1 1
2 2
1 2
2 1
1 1
2 2
2 2
2 2
2 2
1 1
2 2
1 1
2 2
1 2
1 2
1 2
1 1
2 1
2 1
1 1
1 2
2 1
2 1
2 2
1 2
1 1
2 1
2 1
1 2
2 2
1 2
1 2
1 1
2 2
2 1
2 2
2 2
2 1
1 1
1 1
1 2
2 1
2 2
2 2
2 2
1 2
1 2
1 1
1 2
2 1
1 2
1 2
2 2
1 2
2 2
1 2
2 2
2 1
2 1
1 2
1 1
2 2
2 1
1 1
2 1
2 2
2 1
1 2
1 2
2 2
2 2
2 2
1 1
2 2
2 2
1 1
1 2
1 1
1 2
1 2
1 1
2 2
2 2
1 1
1 2
1 2
1 2
1 1
1 2
1 2
2 2
1 1
1 2
2 1
1 1
2 2
2 1
2 1
2 2
2 1
2 2
1 1
1 2
2 1
1 2
2 2
2 2
1 1
2 1
2 2
1 2
2 2
2 1
1 1
2 2
1 1
1 1
1 2
1 2
1 2
1 2
2 1
1 2
1 2
1 1
2 2
1 2
1 2
1 2
2 1
2 2
1 1
1 1
2 1
2 2
2 1
1 1
1 1
1 2
2 2
2 2
1 2
1 1
1 2
2 2
2 1
1 2
1 2
1 2
1 1
1 2
2 2
2 2
1 2
2 1
1 2
1 2
1 2
1 2
1 2
2 2
2 1
2 2
2 1
2 2
1 1
1 2
1 1
2 1
1 1
1 1
1 1
1 1
2 2
2 2
2 1
2 1
1 2
1 2
2 1
1 1
2 2
2 2
2 1
2 1
2 1
2 2
2 1
2 2
1 2
1 2
1 1
1 1
2 2
1 1
1 1
1 2
1 2
2 1
1 2
2 2
2 2
2 2
1 1
2 1
1 1
2 1
1 2
1 1
1 1
1 1
1 1
1 2
1 1
1 1
2 1
1 2
1 1
1 1
2 2
2 1
1 2
1 2
1 2
2 2
1 1
2 2
2 2
1 2
1 2
1 2
1 1
1 1
1 1
1 1
1 2
2 2
2 2
2 1
1 1
1 2
2 2
2 1
1 1
1 1
1 2
1 2
2 2
1 2
1 1
2 1
1 1
1 2
1 1
1 1
2 1
1 2
1 2
1 1
2 2
2 2
2 1
2 2
2 1
2 1
1 1
2 1
1 2
2 1
1 2
1 2
1 1
1 2
1 2
2 1
1 2
2 2
1 1
1 2
2 1
1 1
2 2
2 2
1 2
2 1
2 1
1 1
1 2
1 1
2 1
1 2
1 2
2 2
1 1
1 2
2 2
2 1
2 1
1 2
2 2
1 2
2 1
2 2
1 1
2 1
1 2
2 1
2 1
2 1
2 1
1 1
1 2
2 2
2 2
2 2
1 2
1 2
2 2
2 2
2 2
1 2
1 2
2 1
2 1
1 2
2 1
1 1
2 1
1 1
1 1
2 2
1 1
1 1
2 1
2 1
1 2
1 2
2 1
1 1
1 2
2 2
2 1
2 1
1 1
1 2
2 1
1 1
1 2
2 2
1 2
1 1
1 2
2 2
2 1
2 1
2 1
1 1
1 1
2 1
1 2
2 1
2 1
2 1
2 2
2 2
1 1
1 1
1 2
1 2
1 1
1 1
2 1
1 1
2 1
2 2
1 1
1 1
2 1
2 2
1 2
1 1
1 2
2 1
2 2
1 2
2 1
1 1
1 2
2 1
2 1
2 2
2 2
2 2
2 2
2 2
2 2
2 1
2 1
2 2
1 1
1 1
1 1
1 1
2 2
1 2
2 2
2 1
2 2
1 1
1 1
2 2
1 2
2 2
2 1
1 2
1 2
1 1
1 2
2 2
1 2
1 1
2 1
2 2
2 2
2 2
2 1
2 2
2 2
1 2
1 1
2 2
2 1
1 1
1 1
1 1
2 1
1 2
1 1
2 2
1 2
1 2
2 1
1 1
2 2
1 2
1 2
1 1
2 1
2 1
2 1
2 2
2 2
1 1
2 2
1 1
2 1
2 2
2 2
2 2
2 1
2 2
1 2
1 2
1 2
1 1
1 1
1 2
2 2
2 1
1 2
1 1
1 2
1 2
2 1
2 2
2 1
1 1
1 2
1 2
1 1
1 2
2 1
1 1
1 2
1 2
1 2
2 2
2 1
2 2
1 2
2 1
2 1
1 1
1 1
1 2
2 1
2 2
2 1
2 1
2 1
2 1
2 2
1 1
2 1
2 2
1 1
2 1
1 1
1 2
1 2
1 2
1 2
1 1
2 2
2 1
2 2
2 1
1 2
1 2
2 2
1 1
1 1
2 2
1 2
1 1
1 2
1 1
1 2
2 1
2 2
1 1
1 2
2 1
1 2
1 1
1 2
2 1
1 2
1 2
2 1
1 2
2 2
2 1
2 2
1 2
1 1
1 1
1 1
2 2
2 2
2 2
1 1
1 2
1 1
2 2
2 1
1 2
1 2
1 2
2 1
2 1
2 2
1 1
2 1
1 2
2 1
1 2
1 2
1 2
1 2
1 2
1 1
2 1
2 2
1 1
1 1
1 1
2 2
2 2
1 2
1 2
1 1
2 1
1 1
1 2
1 1
2 2
1 1
1 1
1 1
2 1
1 2
2 1
2 2
1 1
2 1
1 2
1 2
1 1
2 2
2 1
1 2
1 1
2 1
2 1
2 2
2 1
1 2
2 2
1 2
2 2
2 1
2 1
1 2
1 1
2 1
1 2
2 2
2 1
2 2
2 1
1 1
2 2
2 1
1 1
1 1
2 1
2 1
1 2
1 2
1 1
1 2
1 2
2 2
1 1
1 2
1 1
2 1
1 2
2 1
1 1
2 2
2 1
2 2
1 2
2 2
2 1
2 1
1 1
2 2
1 2
1 1
2 2
2 2
1 1
1 1
1 2
1 1
1 2
1 2
1 1
1 1
1 1
1 1
2 2
1 2
2 2
1 2
2 1
2 2
1 2
2 1
2 1
2 2
2 1
2 2
1 2
1 1
1 2
2 2
1 1
1 2
2 1
1 1
2 2
1 2
1 2
2 2
2 1
1 2
1 2
1 2
2 2
1 1
2 2
1 1
2 1
2 2
2 1
1 2
2 2
2 2
2 2
1 2
1 2
2 1
2 1
2 2
2 2
2 2
1 1
2 2
2 2
1 2
2 1
1 2
1 2
2 2
2 2
1 1
2 2
1 2
2 1
2 2
2 1
2 1
1 1
1 1
2 2
2 2
2 1
2 1
1 1
1 2
2 1
1 2
2 1
1 1
1 2
2 2
2 2
2 1
2 2
1 2
2 1
2 2
1 1
2 1
2 1
1 1
2 1
2 1
1 1
2 1
1 1
2 2
2 1
1 2
1 1
2 2
2 1
1 1
2 2
1 1
2 1
2 1
1 1
1 2
1 2
1 2
1 1
1 1
1 1
2 1
1 2
1 2
2 1
2 1
1 2
1 1
2 1
2 1
2 1
2 2
1 1
2 1
1 2
1 2
1 1
1 1
2 1
1 2
2 2
1 2
1 1
1 1
2 1
1 1
1 2
2 2
1 1
1 1
1 2
2 2
2 2
2 2
1 2
2 1
1 2
1 1
2 1
2 2
1 2
1 2
2 1
2 2
2 2
2 1
2 2
2 1
1 2
1 2
1 2
2 2
2 2
1 1
2 1
1 1
2 1
1 2
1 1
1 2
1 1
1 2
2 2
1 2
1 2
2 1
1 1
1 2
2 1
2 1
1 1
2 1
1 1
2 2
2 1
1 1
2 1
1 2
2 1
1 2
2 1
2 1
1 1
1 1
1 2
2 2
1 2
2 2
1 1
1 2
2 1
2 1
2 1
1 2
2 1
1 1
1 1
1 2
1 2
1 1
1 2
1 2
2 2
1 1
1 1
2 2
1 2
1 1
1 2
2 2
2 1
2 2
1 2
2 1
1 1
2 1
1 2
1 1
2 2
2 1
1 1
2 1
1 2
2 2
1 2
2 2
2 2
2 1
2 1
1 2
2 2
1 1
1 2
2 2
2 2
1 2
1 2
1 2
1 2
1 1
2 1
2 2
1 1
1 1
2 1
2 1
1 2
2 1
1 1
2 2
1 1
2 1
1 2
1 1
2 1
2 1
1 1
2 2
2 1
1 1
2 2
1 2
1 1
2 1
2 1
1 1
2 1
1 2
1 1
1 2
2 2
1 1
1 1
2 1
1 1
1 1
2 2
1 2
1 1
2 2
2 2
1 2
1 2
2 1
1 1
1 1
2 1
2 2
1 1
1 2
1 2
2 1
2 1
2 1
2 2
1 2
2 1
2 2
2 2
1 2
2 1
2 2
1 1
1 1
1 1
1 2
1 2
2 2
2 2
2 2
2 2
2 1
2 1
2 1
1 2
1 2
1 1
2 2
1 2
2 2
2 2
1 1
2 1
2 1
1 2
2 1
2 1
1 2
1 1
2 2
2 1
2 2
2 1
1 1
2 2
2 1
2 1
2 2
2 1
1 2
1 1
1 2
2 2
2 2
2 1
2 1
2 1
2 2
1 2
2 2
2 1
1 2
2 1
2 2
1 2
1 2
1 1
2 2
2 1
2 1
1 1
2 1
1 1
2 1
2 2
2 2
2 1
2 2
2 2
1 1
1 1
2 2
2 2
1 1
2 1
2 2
1 2
1 1
1 1
1 1
2 2
2 1
2 1
2 2
1 1
1 1
2 1
1 2
2 2
1 1
1 1
2 1
1 2
1 1
1 1
2 1
2 2
2 1
2 2
2 1
2 2
2 1
2 2
2 2
1 1
1 2
2 1
2 2
1 1
2 1
1 1
2 2
1 1
1 1
1 1
2 1
2 1
1 1
1 1
2 1
1 2
1 2
2 1
2 1
2 2
1 2
2 2
1 1
1 2
1 1
1 2
1 2
2 2
1 2
2 2
1 1
2 2
2 1
2 1
1 2
1 2
1 1
2 2
1 1
1 2
2 1
2 2
2 1
1 1
2 1
2 1
2 1
1 2
1 2
2 1
2 1
2 1
1 1
2 1
1 2
1 1
1 1
1 1
2 2
1 1
2 1
2 2
1 1
2 2
2 2
1 2
1 2
2 1
1 2
1 2
2 1
1 1
1 2
2 2
2 2
1 1
1 2
1 2
2 2
2 1
1 2
2 2
2 2
1 1
2 1
2 2
1 2
2 1
2 2
2 2
1 1
1 2
2 2
1 1
1 1
2 2
2 2
1 2
2 1
1 2
2 1
1 1
2 2
2 2
2 1
2 2
2 2
1 2
1 1
1 1
2 1
1 1
1 1
1 1
2 1
2 2
1 2
1 1
1 2
2 2
2 2
2 2
2 1
1 1
1 1
1 1
2 1
1 2
1 1
1 1
1 2
2 2
2 2
1 1
2 1
2 1
2 1
2 1
2 1
2 2
1 2
2 1
1 2
1 2
2 2
2 2
2 1
2 1
1 1
2 2
1 2
2 2
2 1
1 1
1 2
2 2
1 2
1 2
2 2
1 2
2 2
1 2
2 1
1 1
1 2
2 2
2 2
1 1
1 2
2 2
2 1
1 1
1 1
1 1
1 2
2 1
1 2
1 2
1 1
1 1
2 2
2 1
2 1
1 2
1 2
2 1
2 1
2 2
2 1
1 1
2 1
2 2
1 1
2 2
2 1
2 1
2 1
1 2
2 2
1 2
1 2
2 2
1 1
2 2
2 2
2 2
1 1
1 1
1 1
1 1
2 1
1 2
1 1
1 2
1 2
2 1
2 2
2 2
2 2
2 1
2 2
1 2
1 1
1 1
1 1
2 1
1 2
2 1
1 2
1 2
2 1
2 2
1 2
2 1
1 2
2 2
2 1
1 2
1 1
2 1
1 2
2 1
2 1
1 1
2 2
2 1
1 2
1 2
1 1
2 2
2 2
1 1
1 2
2 1
1 2
1 1
1 1
1 2
1 2
1 2
1 1
1 1
1 1
2 1
2 2
2 1
1 1
1 2
2 1
2 2
2 1
2 1
1 1
2 2
1 2
1 2
2 2
1 2
1 1
2 1
2 2
2 1
2 1
2 2
2 1
2 1
1 1
1 2
2 1
2 2
1 1
2 1
1 2
1 1
1 2
1 1
1 1
1 2
1 2
2 2
2 2
1 1
2 1
2 1
2 2
1 2
1 1
1 2
2 2
1 1
1 2
2 1
1 1
1 2
2 1
2 2
2 1
1 2
1 2
2 2
2 2
1 2
2 1
1 2
1 2
2 2
1 1
2 1
2 1
2 1
1 1
1 2
2 2
2 1
1 1
1 1
1 2
2 1
1 2
2 2
2 1
2 1
2 1
1 2
2 1
2 1
2 1
1 1
2 1
1 2
1 1
1 1
1 1
1 1
1 2
1 2
2 2
2 2
2 2
1 2
1 2
1 2
2 1
1 2
1 1
2 2
1 2
1 2
2 1
2 2
2 2
2 1
1 2
2 1
1 1
2 2
1 2
2 1
1 2
2 1
2 2
2 1
1 1
2 1
1 1
2 2
1 1
2 1
2 2
2 1
2 2
2 2
2 2
2 2
1 2
1 2
2 2
1 2
2 2
2 2
2 1
2 1
1 1
1 2
2 2
2 1
2 2
2 1
2 2
1 2
2 2
1 1
2 1
2 2
1 1
2 2
1 2
2 1
2 1
1 1
2 2
1 2
2 2
2 2
2 1
2 1
1 2
1 2
1 1
2 1
1 1
2 2
2 1
2 1
2 1
1 2
2 2
1 2
1 2
2 1
2 1
2 2
1 2
2 1
2 2
1 2
1 2
1 2
2 2
1 1
1 2
2 1
1 2
1 2
1 1
2 2
2 2
2 2
2 1
2 1
2 1
1 1
2 2
2 1
1 1
1 1
1 2
2 2
2 2
1 2
2 2
2 2
1 2
1 2
2 2
2 1
1 1
2 2
1 1
2 2
1 2
2 2
2 2
2 2
2 1
1 1
2 2
2 2
1 1
2 1
2 2
1 1
1 2
2 2
2 2
2 1
2 1
2 2
2 2
1 2
2 1
1 2
2 2
2 2
1 1
1 2
2 2
1 1
1 1
2 1
1 1
2 2
1 1
1 1
2 1
2 2
2 1
1 1
1 1
2 2
2 1
1 2
1 2
1 2
1 1
2 1
2 2
2 2
2 1
1 1
2 1
1 1
1 1
2 2
1 2
1 2
1 1
2 2
2 2
1 2
2 1
1 2
2 1
1 2
1 2
1 1
1 2
2 1
1 2
2 1
2 1
2 2
1 1
2 2
2 1
2 2
1 2
2 1
1 1
1 2
1 2
1 1
2 2
2 2
1 1
1 1
2 2
1 1
2 1
1 1
1 1
2 2
1 2
1 2
1 1
2 2
1 2
1 2
1 1
1 1
1 1
1 2
2 1
2 1
1 2
1 2
1 1
1 1
2 2
2 2
2 1
2 2
1 1
2 1
2 1
2 1
2 2
2 1
2 2
1 1
2 2
1 1
1 2
2 2
1 2
2 1
2 2
2 2
2 1
1 1
1 1
2 1
2 1
2 1
2 1
1 1
2 1
1 1
2 2
1 2
2 1
1 2
2 2
1 1
2 1
2 2
1 2
2 1
2 2
1 2
1 1
1 2
1 1
2 1
1 1
1 1
1 2
2 1
2 1
1 2
1 2
1 1
2 1
1 2
2 1
2 2
1 1
2 1
2 2
2 1
2 1
1 1
1 2
2 2
2 1
1 1
1 2
1 1
1 1
1 1
1 1
2 2
2 2
1 1
1 1
1 1
2 1
1 2
1 1
1 1
2 2
1 1
2 1
2 1
1 2
2 2
1 2
2 2
2 2
1 2
1 2
2 2
2 1
1 2
1 1
2 1
2 2
2 1
1 1
2 2
2 2
1 2
1 1
2 1
1 2
2 1
2 1
1 2
1 2
2 1
1 1
1 1
2 1
1 1
2 2
2 1
1 2
2 1
1 2
1 2
1 2
1 2
2 1
1 1
2 1
1 2
1 2
2 2
2 1
2 2
1 1
1 2
2 2
2 1
2 1
1 1
2 1
2 2
1 2
2 2
1 2
2 1
2 1
1 2
1 1
1 1
1 2
2 2
1 1
2 1
1 1
1 2
1 1
1 1
1 2
1 1
2 2
1 2
2 2
2 2
2 2
1 2
1 1
1 2
1 1
2 2
1 1
1 1
2 1
1 2
2 2
2 1
2 2
2 2
2 1
2 1
2 1
1 2
2 2
1 2
1 1
2 2
1 1
2 1
2 1
2 1
2 2
1 2
2 1
1 2
1 2
1 1
2 1
2 1
2 1
2 1
1 2
2 2
2 1
2 2
1 2
2 2
2 1
1 2
2 1
2 2
2 2
2 1
2 2
1 1
1 1
2 1
1 1
1 1
1 2
1 2
2 2
2 2
2 1
2 2
2 1
1 2
1 1
1 2
1 2
2 2
2 2
2 2
2 1
1 1
2 2
1 1
1 1
1 2
2 2
2 1
1 1
2 1
1 2
1 2
2 2
2 2
1 2
1 2
2 1
2 2
2 1
1 1
1 1
1 1
1 2
2 1
2 1
1 1
1 1
1 2
1 2
2 1
1 2
2 2
1 2
2 1
2 2
1 2
2 1
2 1
1 1
1 1
1 1
2 1
1 1
1 2
2 2
1 1
1 2
2 2
1 1
1 2
2 1
2 1
2 1
2 1
1 1
2 2
1 2
2 1
1 2
2 2
1 2
2 1
1 1
2 2
1 1
2 2
1 2
1 2
2 2
1 1
1 1
1 1
2 1
1 1
1 2
2 2
1 1
1 1
2 2
1 1
1 1
2 2
2 1
1 2
1 1
1 1
1 2
1 1
1 2
1 2
1 2
2 1
1 1
1 1
2 1
1 2
1 1
2 2
2 2
1 2
2 1
1 2
2 2
1 2
2 2
1 1
2 1
2 2
1 1
2 2
1 1
2 2
1 1
1 2
2 1
1 1
2 2
1 1
1 2
1 2
1 1
1 1
1 2
1 2
1 1
1 1
1 2
1 1
1 1
2 2
1 1
2 1
2 1
2 1
2 1
2 2
2 1
2 2
1 2
2 1
2 2
1 1
1 1
2 2
1 2
1 2
1 2
1 2
1 1
1 2
1 1
1 1
2 2
2 1
2 1
1 1
2 1
2 2
2 1
1 1
2 1
2 2
1 1
1 1
1 1
1 2
2 2
2 1
2 1
1 1
2 2
2 1
1 1
1 1
2 2
1 1
2 2
1 1
2 1
1 1
1 2
1 2
2 1
2 2
2 2
2 1
2 2
1 2
1 1
1 2
1 1
1 2
2 2
2 1
2 2
2 1
1 2
2 1
1 2
2 2
1 1
2 2
1 1
1 2
2 1
2 2
1 1
1 1
2 1
1 2
2 1
2 2
1 2
2 2
1 1
1 1
1 2
2 1
1 2
2 1
2 2
2 2
2 2
2 1
2 1
2 2
2 2
2 1
1 2
2 2
1 1
2 1
2 2
2 2
2 2
1 1
1 1
2 2
2 2
2 1
1 1
1 2
2 2
1 1
1 1
1 1
2 1
1 2
1 1
1 1
1 1
1 1
2 1
2 2
1 1
1 1
1 2
2 2
1 1
1 1
1 1
1 2
1 2
2 2
1 1
1 2
1 1
2 1
2 1
2 2
2 2
2 1
1 2
2 2
1 2
1 1
2 1
1 1
1 1
1 2
2 2
2 2
2 2
1 1
2 1
2 1
2 1
2 1
2 1
2 1
2 2
2 2
1 2
2 2
1 1
1 2
2 2
2 1
2 2
2 1
2 2
2 1
1 2
2 2
1 2
2 1
1 1
2 1
2 2
1 1
1 1
1 2
2 1
2 2
2 2
1 2
2 1
1 2
2 2
2 1
1 1
2 2
1 2
2 1
2 1
1 2
2 1
1 2
2 2
1 1
1 1
2 2
2 2
2 2
2 1
1 1
2 1
1 1
1 1
1 1
2 1
2 1
1 1
2 2
1 2
2 2
1 2
2 2
2 2
1 1
1 1
2 2
1 2
2 2
1 2
1 1
1 1
1 2
1 1
1 1
2 1
2 2
1 1
2 2
1 1
1 1
1 1
2 1
2 1
1 2
1 1
1 1
1 1
2 2
2 1
2 2
1 1
2 1
2 2
2 2
2 2
2 1
1 2
2 1
1 1
2 1
1 2
2 2
2 2
2 1
2 1
2 2
1 2
2 2
2 2
2 2
1 2
2 1
2 2
1 1
2 2
1 1
2 1
2 2
2 1
2 1
2 1
2 2
2 1
2 2
2 1
2 2
1 2
2 1
2 1
2 1
1 1
2 1
2 2
1 2
1 2
2 1
1 1
2 2
2 2
1 1
1 2
1 1
2 1
2 2
2 2
1 2
2 2
2 1
2 1
1 2
1 1
2 1
2 1
1 1
2 1
2 1
1 1
1 2
1 2
1 1
1 2
1 1
2 2
1 2
2 1
1 1
1 1
2 2
2 2
1 1
2 2
2 1
1 2
2 2
1 1
2 1
2 1
2 1
1 1
1 2
1 2
1 2
2 2
1 1
1 2
2 2
2 1
2 2
2 1
2 2
1 1
2 1
2 2
2 1
2 1
2 1
2 1
2 2
1 1
2 1
2 2
2 1
2 2
1 1
2 1
2 2
1 2
2 1
1 2
1 1
1 1
2 2
1 1
1 2
2 2
2 1
1 1
1 2
1 2
2 2
2 2
1 2
2 1
2 1
1 2
2 1
2 1
1 2
2 2
1 2
1 1
2 2
1 1
2 2
2 1
1 2
2 1
1 1
1 2
1 2
1 1
1 1
2 1
2 2
2 2
1 1
1 1
1 2
2 1
2 2
1 1
2 1
2 2
2 1
2 2
1 1
1 1
2 1
2 2
2 2
1 2
2 2
1 1
2 1
1 1
2 2
1 2
2 2
2 2
1 2
1 2
1 1
1 1
2 2
1 2
2 2
2 2
2 1
1 1
2 1
1 1
2 1
2 1
2 1
1 2
1 1
1 2
2 2
1 2
2 2
2 1
2 2
1 1
2 2
1 2
1 2
2 2
2 2
2 1
2 1
2 2
2 2
2 1
2 2
2 2
2 2
2 1
1 1
1 2
2 2
2 1
1 2
1 2
1 2
2 1
2 2
2 2
2 2
2 1
2 1
2 2
2 1
2 2
1 2
2 1
1 2
2 2
1 2
2 2
2 1
2 2
1 1
1 2
1 2
1 1
1 1
1 1
2 2
1 2
2 2
1 1
2 2
1 1
2 1
2 2
1 2
1 1
2 1
1 2
1 1
1 1
2 1
2 1
2 1
2 1
1 1
1 1
1 2
2 2
2 2
1 1
2 1
1 2
2 1
1 2
2 2
1 1
2 2
1 2
1 1
2 2
1 2
2 2
1 1
1 1
2 2
1 2
1 1
2 2
2 1
2 2
1 1
2 2
1 1
1 1
1 1
2 2
2 1
2 2
2 2
1 2
1 1
2 1
1 2
2 2
2 2
2 2
1 1
1 2
2 2
2 2
2 2
1 1
1 1
1 2
2 1
2 2
2 1
1 2
1 1
1 1
1 1
1 1
2 1
2 1
2 1
2 1
1 1
2 1
2 1
1 2
1 2
1 2
1 1
1 2
1 1
2 2
2 1
1 2
2 2
1 2
1 1
1 2
2 2
2 2
2 2
1 2
1 1
2 2
1 1
2 1
2 1
1 2
1 2
2 1
2 2
1 1
1 2
1 1
2 2
2 1
1 2
1 1
2 2
2 2
2 2
1 1
2 2
1 1
1 1
2 1
2 2
2 1
2 2
1 2
1 1
2 1
2 1
1 1
2 2
1 2
1 1
1 2
2 1
2 2
2 1
2 2
1 2
1 1
2 1
1 1
1 2
2 1
2 1
2 2
1 2
2 2
1 2
2 2
2 1
1 2
2 2
2 1
2 2
1 1
1 1
2 1
1 2
2 2
1 1
2 2
1 1
2 2
1 2
2 1
1 1
1 1
2 1
1 2
1 2
1 1
1 1
2 1
1 2
1 2
2 2
2 1
1 1
1 1
2 2
1 1
2 1
1 1
2 1
2 2
2 2
1 1
2 2
1 1
1 2
2 2
2 1
1 1
1 2
1 2
2 2
1 2
2 2
2 1
1 2
1 1
2 2
1 2
1 1
2 2
2 2
2 1
2 2
2 1
2 2
2 1
1 1
2 2
2 1
1 1
2 2
1 2
1 1
2 1
2 2
2 1
2 1
1 2
2 1
2 1
2 1
1 1
2 2
1 2
2 1
1 1
1 2
2 1
2 2
1 2
2 1
2 1
2 1
1 2
1 2
2 1
2 1
2 1
1 2
1 2
1 2
1 1
1 1
2 1
1 1
1 2
2 2
2 2
1 1
1 1
2 1
1 1
2 2
1 1
2 2
2 1
2 2
2 1
1 1
1 2
2 1
1 2
1 1
2 1
1 2
2 2
1 1
2 2
1 2
1 1
2 1
1 1
1 2
2 2
1 2
2 2
2 2
1 1
2 1
1 2
2 1
1 1
1 1
1 2
1 2
2 1
1 2
2 2
1 1
1 2
1 2
2 1
2 1
2 2
2 1
1 1
2 1
2 2
1 1
1 1
2 1
2 1
1 1
2 2
1 1
1 1
2 1
1 2
2 1
1 1
2 2
1 1
1 2
1 1
2 1
1 2
2 1
1 2
1 1
1 2
2 2
1 2
2 1
1 2
1 1
2 2
1 1
1 2
2 1
1 2
2 2
2 2
1 2
1 2
1 1
2 1
1 2
2 1
1 1
2 2
2 2
2 2
2 1
2 1
1 1
1 1
2 1
1 1
1 2
2 2
1 1
1 1
2 1
2 1
2 1
1 1
1 1
1 2
2 2
2 1
1 2
2 2
2 1
2 1
2 2
1 2
1 1
1 1
2 2
2 2
1 2
1 2
1 1
2 1
2 2
1 1
1 1
1 1
1 2
1 2
2 1
2 2
2 2
2 2
1 2
2 1
2 1
1 2
1 1
2 2
1 2
2 2
1 2
1 1
1 2
2 2
2 1
1 1
1 2
1 2
1 2
2 2
1 2
2 2
2 2
1 2
1 2
1 1
1 2
1 1
2 1
1 2
1 1
1 1
1 2
1 1
1 2
2 1
2 2
2 1
1 1
1 1
1 1
1 1
2 2
1 2
1 1
1 2
2 1
1 1
2 1
2 1
2 2
2 1
2 1
2 2
1 2
1 1
2 1
2 1
1 2
1 2
1 2
1 2
2 1
1 2
1 1
2 2
1 1
1 1
1 1
1 1
2 1
2 2
2 1
1 1
1 2
1 2
1 1
2 1
2 2
2 2
1 2
2 2
1 2
2 2
1 2
1 2
2 1
1 1
2 1
1 2
1 2
2 1
2 1
2 1
2 1
2 2
2 2
1 2
1 1
1 2
2 1
2 1
2 1
1 2
1 2
2 1
1 2
2 1
2 2
2 1
2 2
1 1
1 2
1 2
1 1
2 2
2 2
1 2
1 1
1 2
2 2
1 1
1 1
2 2
1 1
1 1
2 2
2 2
1 2
2 1
2 1
1 2
1 2
2 1
1 2
2 2
1 2
1 1
1 2
2 1
1 1
2 1
1 2
1 2
1 2
1 1
2 1
1 1
1 1
2 2
2 2
1 1
2 1
2 2
1 1
2 1
1 1
2 1
2 1
1 2
1 1
1 2
2 1
1 1
2 1
2 1
2 2
1 2
2 2
2 2
1 2
2 2
1 2
1 1
2 1
1 1
2 2
2 1
1 1
1 2
2 2
2 2
2 2
2 1
1 2
2 2
2 1
2 2
2 1
1 1
2 2
1 2
2 1
1 1
2 2
1 2
2 1
1 2
1 2
1 1
1 1
1 1
2 1
1 2
2 1
1 1
2 2
2 1
1 2
1 1
2 2
1 2
2 1
2 2
1 2
1 2
1 2
2 1
1 2
2 1
1 2
2 1
1 2
1 1
1 1
1 2
1 1
1 2
2 1
2 2
1 2
2 1
2 1
1 2
1 2
2 2
2 2
1 1
1 2
1 2
2 2
2 1
1 1
2 1
1 1
1 2
1 1
1 2
1 2
2 2
1 2
2 2
1 2
2 1
1 1
1 2
2 2
2 1
2 1
1 2
1 2
2 1
1 2
2 2
2 1
1 1
1 2
2 2
2 2
2 2
1 1
1 2
2 2
2 1
2 1
2 1
1 1
2 1
1 2
2 2
2 2
2 2
2 1
2 2
1 1
2 1
2 1
1 2
2 2
1 1
1 1
2 1
1 2
1 1
1 2
2 1
2 2
1 1
1 2
2 1
2 2
2 1
2 2
2 1
2 2
2 1
1 2
1 1
1 2
2 2
2 2
1 2
1 1
2 1
1 1
1 1
1 1
1 2
2 1
1 2
2 1
2 1
2 2
1 1
1 1
1 1
1 2
2 2
2 1
1 1
2 1
2 2
1 1
2 2
1 1
1 1
1 2
2 2
2 2
1 2
2 2
1 1
1 1
2 1
1 1
1 2
2 1
2 1
1 1
1 2
2 1
2 1
1 1
1 2
2 1
2 2
2 1
2 2
2 2
2 1
1 2
2 2
2 1
2 2
1 2
1 1
2 2
2 2
1 1
2 2
1 2
1 1
2 1
1 1
1 1
1 1
2 1
2 2
1 1
1 2
1 1
1 2
2 2
1 2
1 1
2 2
1 1
2 1
2 2
1 1
1 2
2 1
2 1
1 1
2 1
2 2
1 1
2 2
1 1
2 2
2 1
1 1
2 2
2 1
2 2
2 2
1 1
2 1
2 2
1 1
2 1
1 2
1 1
1 1
2 2
2 2
2 2
1 1
1 1
1 1
1 1
1 2
1 1
1 1
1 1
2 2
1 1
2 1
2 1
2 2
1 1
2 2
1 1
2 1
2 1
2 1
2 1
2 1
2 2
2 1
2 2
2 1
1 2
2 2
2 1
2 1
1 1
2 1
2 1
2 2
1 1
2 2
1 2
1 1
1 2
1 1
2 1
1 1
2 2
2 2
1 1
2 2
2 1
1 2
1 2
2 1
1 2
1 1
2 2
2 2
1 1
2 2
1 1
1 1
2 1
2 1
2 1
1 2
2 2
1 1
1 2
2 1
2 1
2 1
2 1
2 2
2 1
1 1
1 2
2 1
2 1
2 2
1 2
2 1
1 2
1 2
2 2
1 2
1 1
2 1
2 1
1 1
2 2
2 2
2 1
2 1
2 1
2 1
1 1
1 1
2 2
1 1
2 2
1 2
1 2
2 1
2 2
1 2
1 2
2 1
2 1
2 2
1 1
2 2
2 1
2 1
2 2
1 2
1 2
1 1
2 2
1 1
1 2
1 2
1 2
1 1
2 2
2 1
1 1
1 2
1 1
1 2
1 1
2 2
1 2
2 2
1 1
2 2
2 1
1 2
2 2
2 1
2 2
1 2
1 1
2 1
2 1
1 1
1 1
1 2
1 2
1 1
2 2
2 2
1 2
1 2
1 1
2 1
1 1
1 1
2 1
1 2
1 2
2 1
1 2
2 2
1 1
1 2
1 2
1 1
2 2
2 2
1 1
2 2
1 1
2 1
1 2
2 2
2 2
2 2
1 1
1 2
2 1
1 1
2 2
1 2
1 1
1 2
2 2
2 2
1 2
2 2
1 2
2 1
1 1
2 2
2 2
2 2
2 2
2 2
2 2
1 2
1 1
2 2
1 2
1 1
2 1
1 2
2 2
1 2
1 2
1 2
1 2
1 1
2 1
1 2
2 2
1 2
1 2
1 1
2 1
2 2
2 1
2 2
2 2
2 2
1 2
2 1
2 2
2 2
1 2
1 1
2 2
1 1
2 2
2 2
2 2
1 1
1 2
2 2
1 2
1 2
1 1
2 1
1 1
1 1
1 2
2 2
2 1
1 1
2 1
2 2
2 2
1 2
2 2
2 2
1 1
1 2
2 2
1 2
1 2
1 2
2 1
2 2
1 2
1 2
2 1
1 1
1 2
2 1
2 1
2 2
2 1
1 1
1 2
2 1
2 1
2 1
1 2
2 2
2 1
2 1
1 2
2 2
2 1
2 2
2 1
1 1
1 2
1 1
2 2
1 1
2 1
2 1
2 1
2 1
1 1
2 2
1 1
1 2
1 1
1 1
2 1
2 1
1 2
2 1
2 2
2 1
2 2
1 2
1 1
2 2
1 2
2 2
1 1
2 2
2 2
2 2
1 2
1 2
2 1
2 1
2 1
2 1
1 1
1 2
2 1
2 2
2 2
2 1
1 1
1 1
1 1
2 1
1 1
2 1
1 2
1 2
1 2
2 1
2 2
1 1
2 2
2 2
1 2
2 2
2 2
2 1
2 2
1 2
2 2
1 1
2 2
1 1
2 2
1 2
2 1
2 1
2 1
1 2
2 1
1 2
2 1
2 1
1 2
1 1
2 1
1 2
2 2
1 1
2 2
1 1
2 1
2 2
1 2
2 1
1 1
2 1
1 1
2 2
1 1
2 1
1 2
2 1
1 1
2 2
1 1
2 1
1 1
1 2
2 1
2 2
2 2
2 2
2 1
1 1
2 1
2 1
2 1
2 2
1 2
1 2
1 1
2 1
1 1
2 1
1 1
1 2
2 1
1 2
2 1
2 2
2 2
1 2
1 2
1 1
2 1
1 2
2 1
1 1
1 1
2 2
1 1
2 2
1 2
2 1
1 1
1 2
2 1
1 2
1 2
1 2
1 1
2 1
2 1
1 2
1 2
1 1
2 2
1 1
2 1
1 1
2 1
2 1
2 2
1 1
1 2
2 2
2 1
1 1
2 2
1 2
2 2
2 2
2 1
2 2
1 1
2 2
2 2
1 1
2 1
1 1
1 1
1 1
1 1
1 1
1 1
2 2
2 1
2 2
2 2
1 1
1 2
2 1
2 2
1 1
2 1
2 1
2 2
1 2
2 2
1 2
1 1
2 2
2 2
1 1
1 2
1 1
2 2
2 2
2 2
2 1
2 1
1 1
1 1
2 1
1 1
1 2
2 2
1 1
2 2
1 2
2 2
2 1
2 1
2 1
2 2
1 1
1 2
2 2
2 1
1 2
1 2
2 1
2 2
2 2
2 2
1 1
2 1
2 1
2 1
1 1
2 2
1 1
2 1
2 2
1 1
1 1
2 2
2 1
1 1
1 2
1 2
2 2
1 1
2 1
2 2
1 1
1 1
1 1
1 1
2 2
1 2
1 1
2 2
1 1
1 1
1 2
2 1
1 1
2 1
1 1
2 2
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 2
2 1
2 2
2 1
1 2
2 2
1 1
1 1
2 1
2 2
2 1
1 2
2 1
2 2
2 1
2 2
1 2
2 2
1 1
2 2
2 1
1 2
1 1
2 2
1 1
2 1
2 2
1 2
1 1
1 2
2 1
2 1
1 2
1 2
1 1
2 2
2 1
1 2
2 1
2 2
1 1
1 2
1 2
2 1
1 1
2 1
1 2
2 1
2 1
2 1
2 2
2 2
2 2
1 1
2 1
1 1
2 1
1 2
2 2
2 1
1 1
2 2
2 1
1 2
2 2
2 1
1 1
2 1
1 2
2 1
1 2
2 1
1 1
2 1
1 1
2 2
1 1
1 2
2 2
2 1
2 1
1 1
2 2
2 2
2 1
1 2
2 2
2 1
2 1
1 2
1 2
2 1
1 2
2 1
2 1
1 1
1 2
1 2
2 2
2 1
1 1
2 1
2 1
2 2
2 2
1 1
1 1
2 2
2 1
2 2
1 1
1 2
2 1
1 1
1 2
1 1
1 1
1 1
1 2
1 2
1 2
2 2
1 2
1 2
1 2
2 2
2 2
2 1
1 2
2 2
1 2
1 1
1 2
1 1
2 1
1 2
2 1
1 1
1 2
2 1
1 2
2 1
2 1
1 1
1 2
1 2
2 1
2 1
1 1
2 1
1 2
1 2
2 1
2 2
1 1
1 2
1 2
2 1
1 2
2 1
1 2
2 2
2 2
1 1
2 1
1 2
1 1
1 1
1 2
1 1
1 2
1 2
2 2
2 1
2 1
1 1
1 2
1 2
2 2
1 1
1 2
2 1
2 1
1 1
2 1
1 1
1 2
1 2
2 2
2 1
2 2
1 2
1 1
2 2
1 2
1 1
1 1
2 2
1 2
1 1
2 2
1 1
2 2
1 1
1 1
1 1
2 2
2 2
1 1
1 2
1 1
1 1
2 2
2 1
2 1
2 1
2 2
2 2
2 2
1 1
1 1
2 1
1 1
2 1
2 2
1 1
2 1
1 1
1 2
1 2
2 1
2 1
1 2
2 1
2 2
1 1
2 2
1 1
1 1
1 2
1 2
1 2
1 2
2 1
1 1
2 1
1 1
2 1
1 1
1 1
1 1
2 1
2 1
2 2
1 2
2 1
2 2
1 1
2 1
2 2
2 1
2 2
2 1
1 2
1 1
1 1
2 2
1 2
2 1
1 2
1 1
1 2
1 2
1 2
1 2
2 2
1 1
1 1
2 2
1 1
2 2
1 2
2 1
2 2
2 2
2 2
1 1
2 2
1 2
2 2
2 1
2 1
2 2
1 2
2 2
1 2
1 1
1 1
1 2
1 2
2 2
2 2
2 1
2 1
1 2
2 2
2 2
1 1
2 2
1 1
2 2
2 2
1 1
2 2
1 1
1 1
2 1
2 2
1 2
1 2
1 2
2 1
2 2
1 1
1 2
1 1
2 2
1 1
2 1
2 1
2 1
1 1
2 1
2 1
2 1
2 1
1 1
1 1
2 1
2 2
1 2
1 1
1 1
2 1
2 2
1 2
2 2
1 2
2 1
1 2
1 1
2 1
1 1
1 1
2 2
2 1
1 2
1 1
1 1
1 1
2 2
1 2
1 1
1 1
1 2
2 1
1 2
1 2
1 2
2 2
1 2
1 2
2 1
2 1
2 1
1 1
2 2
1 1
2 1
1 2
1 1
1 2
2 1
1 2
1 2
1 1
2 1
2 1
1 2
1 1
1 1
1 2
2 1
2 1
2 1
1 1
1 1
1 2
2 1
2 2
2 2
1 1
1 1
2 1
1 1
1 2
1 1
1 1
1 2
2 1
2 1
1 2
1 1
2 1
1 1
2 2
2 1
1 2
1 1
1 2
2 2
1 2
1 1
1 1
1 1
1 1
1 1
2 1
2 1
1 2
2 2
1 1
2 1
1 2
2 1
1 2
1 2
2 2
1 2
2 1
2 2
1 1
2 2
2 2
2 2
1 1
2 2
1 2
2 2
1 2
1 1
1 2
1 1
1 2
1 1
2 1
1 2
1 1
1 2
2 1
1 2
1 1
2 1
1 1
1 1
1 1
1 1
2 2
1 1
1 1
1 1
2 2
1 1
1 2
2 2
1 1
2 2
1 1
1 2
1 1
1 2
2 1
2 2
2 1
2 1
2 2
2 1
1 1
1 1
2 2
1 1
1 1
1 2
2 2
1 1
1 1
2 1
2 1
1 1
1 1
2 2
2 1
2 1
2 1
1 1
1 1
2 2
2 1
2 2
2 2
2 2
2 1
1 1
1 2
1 1
1 2
2 2
2 1
1 2
1 2
1 1
2 2
1 1
2 1
1 1
2 2
2 2
1 2
2 2
2 2
2 1
1 2
1 2
1 2
1 1
1 2
2 1
2 1
1 1
2 1
1 1
1 1
1 2
1 2
2 2
2 2
2 2
2 1
2 1
2 2
1 1
2 1
1 2
2 2
2 2
1 1
1 2
2 2
2 1
1 2
1 2
1 1
2 1
2 2
1 2
2 1
1 2
1 1
2 1
1 1
2 1
1 2
2 2
2 2
2 2
2 1
1 2
2 1
2 1
1 1
1 2
1 1
1 1
1 2
1 1
2 2
1 1
2 2
1 2
1 2
1 2
1 2
2 2
1 2
1 1
2 2
1 2
1 1
1 1
2 1
1 2
1 2
2 2
2 2
1 2
2 1
1 1
2 2
1 2
1 1
2 1
1 2
2 2
1 1
1 2
1 1
2 1
2 1
1 2
1 2
2 2
1 2
2 2
1 1
2 2
2 1
2 1
2 1
2 1
2 1
1 2
2 2
2 1
2 2
2 2
2 1
1 1
1 1
1 2
1 1
2 1
1 1
2 2
2 2
1 2
1 1
2 2
2 2
2 1
2 2
2 1
1 1
2 2
2 1
2 2
2 1
2 1
1 2
1 1
2 2
1 1
2 2
2 2
1 1
1 2
1 1
2 1
1 2
2 1
1 1
2 2
1 1
2 2
2 1
1 1
2 1
1 1
2 2
1 1
2 2
2 1
2 1
2 1
1 1
2 2
2 1
1 1
2 1
1 1
2 2
1 1
2 2
1 1
2 1
2 2
1 2
1 2
1 2
1 2
1 1
1 1
1 1
1 1
2 2
1 1
2 2
1 1
1 1
2 2
2 1
1 2
2 1
2 1
1 2
1 1
2 1
1 1
2 1
1 1
2 2
1 1
1 1
1 1
2 2
2 1
1 1
2 2
1 2
1 1
2 2
1 1
2 2
1 1
1 2
2 2
1 2
1 1
2 1
1 1
2 2
1 1
1 2
1 1
2 2
1 2
1 1
2 1
2 2
2 2
2 1
1 1
2 2
1 2
2 2
2 1
1 1
1 1
2 2
1 2
1 1
1 2
1 2
1 1
2 2
1 2
2 2
2 1
1 1
2 1
1 1
1 1
1 2
1 2
1 2
2 2
2 2
1 2
1 2
1 1
2 2
2 1
1 2
2 2
2 2
2 2
2 2
1 1
2 2
2 2
1 1
2 2
2 2
2 2
1 1
1 1
1 1
1 2
2 2
2 2
2 2
2 2
2 1
2 2
1 2
1 2
2 1
2 1
2 2
1 2
2 1
1 1
2 2
2 1
1 2
2 2
1 1
2 1
2 1
2 1
1 1
1 2
2 1
1 2
1 1
1 2
1 1
2 2
2 1
1 1
2 2
1 2
2 2
1 1
1 1
1 2
1 2
2 2
2 2
1 2
2 1
1 1
1 1
2 1
2 2
2 2
1 1
1 2
2 2
2 1
2 1
2 1
1 2
1 1
1 2
2 1
2 1
1 1
1 2
1 2
2 1
2 1
1 2
2 1
1 2
1 1
1 1
2 2
1 1
2 1
2 2
2 1
1 2
1 1
2 2
1 1
1 2
2 2
1 1
1 1
2 2
2 1
2 1
2 1
2 2
2 1
2 1
1 2
1 1
1 1
2 1
2 2
2 2
1 1
1 2
1 2
2 1
2 2
2 1
1 2
2 2
2 2
1 1
1 2
2 1
2 2
1 2
1 1
1 1
2 1
2 2
1 2
1 1
1 2
1 2
1 1
2 2
2 2
1 2
2 1
2 1
2 1
1 1
2 2
1 1
2 2
2 2
1 1
2 2
1 2
2 2
1 1
2 2
2 2
1 2
2 1
2 1
1 2
2 1
1 1
2 1
1 1
1 1
1 2
1 1
1 1
2 1
2 1
1 2
2 1
2 2
2 1
1 1
2 2
2 2
1 1
1 2
1 2
2 1
1 2
2 1
2 2
2 2
2 1
1 2
1 1
1 1
1 2
1 2
2 1
1 2
2 2
1 2
2 2
1 2
1 1
1 1
1 2
1 1
1 1
1 2
2 1
1 1
2 1
1 1
2 2
1 2
2 2
2 1
1 2
2 1
2 2
1 2
1 2
1 2
2 2
2 2
1 1
2 2
2 1
2 1
2 2
1 2
1 1
1 2
2 2
2 1
1 2
1 2
1 1
1 2
1 1
2 1
2 2
2 2
1 1
1 2
2 2
2 2
1 2
2 1
2 1
1 2
1 1
2 1
2 1
1 2
2 2
1 1
2 2
1 1
2 1
1 1
2 1
2 2
1 1
2 2
1 2
1 1
1 1
2 2
2 1
1 2
1 2
1 2
2 1
2 2
2 2
1 1
1 1
2 1
1 2
2 2
2 2
1 2
1 1
2 1
1 1
1 2
2 2
2 2
1 1
1 2
2 2
1 2
1 2
2 2
2 2
2 2
1 1
1 2
2 2
1 1
1 1
1 2
1 2
1 1
1 2
1 1
1 1
1 1
2 1
1 1
2 2
1 1
2 2
1 2
1 2
2 2
1 1
1 1
2 2
2 1
2 1
2 1
1 2
2 2
1 1
2 2
1 2
2 2
1 1
1 1
1 1
1 2
2 1
2 1
1 2
1 2
1 1
1 2
1 1
1 2
2 2
2 2
2 1
2 1
2 2
1 1
2 2
1 2
2 1
2 1
2 1
2 2
2 2
1 2
1 1
1 2
2 2
1 1
2 1
1 1
1 1
2 1
1 1
1 2
1 2
1 1
1 2
1 2
2 1
2 2
1 1
1 2
2 2
2 2
1 1
1 2
1 2
1 2
2 2
2 2
1 2
1 2
1 2
2 1
2 1
1 2
1 1
1 1
1 2
1 1
2 2
1 1
1 1
2 2
2 1
1 2
1 2
2 2
2 1
1 1
1 2
2 2
2 2
1 2
2 2
1 1
1 2
1 1
1 2
1 1
2 1
2 1
2 1
2 1
1 2
1 2
2 2
2 2
2 1
2 1
2 2
1 2
1 1
2 1
2 2
1 2
2 1
1 2
1 2
1 1
1 2
1 2
1 1
2 1
1 1
2 2
1 1
1 1
1 1
2 2
2 1
1 2
2 1
2 2
2 2
1 1
2 2
2 2
1 2
2 1
1 1
2 2
2 2
1 2
2 1
1 2
1 1
2 2
2 1
1 2
1 1
2 1
2 1
1 2
1 1
2 1
1 2
1 1
1 1
2 2
1 1
1 2
2 1
2 2
1 1
2 2
2 2
2 1
2 1
2 2
2 1
1 1
2 1
2 1
1 1
1 1
2 1
2 1
2 2
1 2
2 2
2 1
1 1
2 2
1 2
2 2
2 1
2 1
2 1
2 2
1 1
1 1
1 2
1 1
1 2
2 1
1 1
1 1
1 1
2 2
1 1
1 2
2 2
2 2
2 2
2 2
1 1
1 2
2 2
2 2
2 1
2 2
1 2
2 2
2 1
2 1
2 1
2 1
1 2
1 2
2 1
2 2
1 2
1 1
1 2
2 2
1 2
2 1
2 1
2 2
1 1
1 2
2 1
1 2
1 1
1 1
1 2
1 2
2 2
2 2
1 1
2 1
2 1
1 1
2 2
2 1
2 2
2 2
1 2
1 2
1 2
2 1
2 2
1 1
1 1
1 2
2 2
1 1
2 2
2 2
2 1
2 2
1 1
2 2
1 1
1 2
2 2
2 1
1 2
2 1
2 1
2 1
1 2
2 2
2 1
1 2
2 1
2 1
2 2
1 1
2 1
2 1
1 1
2 2
2 1
2 1
1 2
2 1
2 1
1 2
2 2
1 1
2 1
1 1
1 2
2 2
1 1
1 2
1 2
1 2
1 1
2 1
1 2
1 1
1 1
2 2
2 1
2 1
1 2
1 1
2 1
2 1
1 2
1 2
1 2
2 1
2 2
1 1
2 1
2 1
1 1
1 1
2 2
1 2
1 2
1 2
1 1
2 2
2 1
2 2
2 1
1 2
1 1
2 2
1 2
1 1
2 2
2 2
2 1
2 1
2 2
2 2
2 2
1 2
1 2
2 2
2 1
2 2
1 2
1 2
2 1
2 2
1 1
2 2
1 2
1 1
1 1
1 1
2 2
1 2
2 2
2 2
2 1
1 2
1 1
2 2
2 1
1 1
1 2
1 2
2 1
2 2
2 2
2 1
1 2
2 1
2 1
1 1
2 1
1 1
2 1
1 1
1 2
1 2
2 1
1 2
2 1
1 2
2 2
1 2
1 2
2 1
2 1
1 2
2 1
2 1
1 1
2 1
1 1
1 2
2 2
1 2
1 1
1 1
1 1
1 2
2 1
1 2
2 2
1 2
1 2
1 1
1 1
1 2
2 1
1 1
1 2
1 2
2 2
2 1
1 2
1 2
2 1
1 1
2 1
1 1
2 2
2 1
1 1
1 2
1 1
2 1
2 1
2 1
1 2
1 2
2 2
1 1
2 2
2 2
2 1
1 1
2 2
1 1
1 1
2 2
1 1
1 2
2 2
1 2
2 2
1 1
2 1
1 2
2 2
2 2
2 1
2 2
1 2
1 2
1 1
1 2
2 1
2 2
2 2
2 2
1 1
2 1
2 1
1 2
2 2
1 2
2 1
1 2
2 1
1 2
2 1
1 1
2 1
2 2
1 2
1 2
2 1
2 2
2 2
2 1
2 1
1 1
2 1
1 2
1 2
2 2
1 2
1 1
2 2
2 2
1 1
2 1
2 2
2 2
2 1
1 1
2 1
2 2
1 2
2 2
1 1
2 2
1 1
1 1
2 1
1 1
2 1
1 2
2 1
1 1
1 2
2 2
2 1
2 2
2 2
2 2
1 1
1 1
2 1
2 2
2 1
1 2
2 2
2 2
2 1
2 1
2 2
1 2
2 2
1 2
1 2
2 1
1 2
1 1
1 2
2 1
2 2
2 1
2 2
1 1
1 1
2 2
1 2
2 1
2 1
1 1
2 1
2 1
1 1
2 1
1 2
1 2
1 1
2 1
1 2
2 2
1 1
2 2
2 1
2 2
1 1
1 1
2 2
2 2
1 2
1 1
2 2
2 1
2 2
1 1
1 2
2 1
2 2
2 2
2 1
1 1
2 1
2 2
2 1
2 2
1 1
2 1
2 1
1 2
1 1
1 1
2 2
2 2
2 2
1 1
2 2
1 1
1 2
2 1
2 1
2 2
1 1
1 2
2 2
2 2
1 1
1 2
1 1
2 2
1 2
1 1
2 1
2 1
1 2
2 2
2 1
2 2
2 1
1 1
2 2
2 1
1 2
1 2
1 2
1 2
1 2
1 2
1 2
2 2
1 2
1 1
2 2
1 2
2 1
2 1
1 2
2 1
1 2
2 2
1 1
1 2
2 2
2 1
1 2
2 2
1 2
2 1
1 1
2 2
1 1
1 2
2 2
1 1
1 2
2 2
1 1
2 2
1 1
1 1
1 2
2 1
2 1
2 2
2 1
1 1
2 2
1 1
2 1
2 2
2 2
2 1
1 2
2 1
2 2
2 2
2 1
2 2
1 2
1 2
2 1
2 1
2 1
2 2
1 2
1 1
1 1
1 1
1 2
2 1
1 1
1 2
1 2
1 2
2 1
2 2
2 1
2 2
2 2
1 2
1 2
2 1
2 1
1 1
1 2
1 1
2 2
1 1
1 2
1 1
1 1
2 2
2 1
1 1
1 2
1 2
2 2
2 1
2 2
1 2
2 2
2 1
1 1
2 2
2 2
2 2
1 1
2 1
1 2
1 1
1 2
2 1
2 1
2 1
2 1
2 2
1 1
2 2
1 2
1 2
2 1
2 2
2 2
1 1
2 2
2 1
2 1
2 2
1 2
1 1
2 1
1 1
2 1
1 1
1 2
1 2
1 1
1 2
1 1
1 2
1 1
1 1
1 1
1 1
2 1
1 1
1 2
1 1
2 2
2 1
1 2
2 2
1 1
1 2
2 1
1 2
1 2
1 1
2 1
2 2
2 2
1 2
2 1
2 1
2 1
1 1
1 2
2 1
1 1
2 2
2 1
2 1
1 2
1 2
2 1
2 1
2 1
2 2
2 1
2 2
2 1
2 1
1 1
1 1
2 1
1 2
1 1
2 1
2 2
1 1
1 1
1 1
2 1
2 1
2 2
1 1
1 2
2 1
1 2
1 1
2 2
2 1
2 1
1 2
1 1
2 2
1 2
2 1
2 2
1 1
2 1
2 2
2 1
2 2
2 1
2 2
2 1
2 1
1 2
1 1
1 2
2 1
2 2
2 1
2 2
2 2
1 2
2 1
1 1
2 1
2 1
2 1
2 2
2 1
1 2
1 2
2 2
1 1
1 2
1 2
2 1
1 1
2 2
2 2
1 2
1 1
2 1
2 1
2 2
1 1
2 1
1 2
2 1
1 2
1 1
2 2
2 1
1 2
2 2
2 2
2 1
2 1
1 1
2 2
2 2
1 2
2 1
2 2
2 1
1 1
2 1
2 1
2 1
2 2
2 1
2 2
1 1
1 2
1 1
2 1
1 2
1 2
1 1
1 2
1 1
1 2
2 1
2 1
2 1
1 1
1 2
2 2
1 1
2 2
1 2
1 2
1 1
2 1
1 2
1 2
2 1
2 1
1 2
1 1
1 2
2 2
1 2
1 2
2 1
1 2
1 2
2 2
1 2
1 1
1 1
1 1
1 2
1 2
2 2
2 2
2 2
2 1
1 1
2 1
2 1
1 1
1 1
1 2
1 2
2 1
1 2
2 1
1 2
1 2
2 1
1 1
2 2
1 2
1 2
1 1
2 2
2 2
1 1
2 1
1 1
2 1
2 1
2 1
1 1
2 2
1 2
1 1
1 1
2 2
1 1
2 1
2 1
1 1
2 2
1 2
1 2
2 2
1 2
1 1
1 1
2 1
1 1
2 2
1 1
2 1
2 2
2 2
1 1
2 1
2 1
1 1
2 2
1 2
1 2
2 1
2 2
2 1
2 2
1 2
2 1
2 1
2 1
2 1
1 1
2 2
1 2
2 2
1 2
2 1
1 2
1 1
1 2
2 2
1 2
2 2
2 2
1 2
1 2
1 2
2 2
2 2
2 2
1 2
2 1
1 1
1 2
2 1
2 2
1 2
1 1
2 1
1 2
2 1
2 1
2 2
2 1
2 2
1 2
1 1
2 2
1 2
2 1
1 2
1 2
1 1
1 1
2 1
2 1
2 2
2 2
1 1
1 1
2 1
2 1
1 2
1 2
1 2
1 1
2 2
1 2
2 1
1 1
1 1
1 2
2 1
2 1
2 1
2 1
1 2
2 1
2 1
1 2
1 2
2 2
1 1
1 2
2 2
1 1
2 2
2 1
1 2
2 2
2 2
2 2
2 1
2 2
1 2
1 1
1 2
1 2
2 1
2 1
1 1
1 2
2 1
2 1
2 1
1 1
2 2
2 1
1 1
1 2
2 2
1 2
2 1
2 1
1 1
2 1
2 2
1 2
1 2
1 2
2 2
1 1
1 2
1 1
1 1
1 2
2 2
2 2
1 1
1 2
1 1
2 2
2 1
1 2
2 1
1 1
2 2
1 2
2 2
2 1
2 2
2 1
2 2
2 2
2 1
2 1
2 2
2 2
1 1
1 2
1 2
1 1
2 1
1 1
2 2
2 1
2 1
2 2
2 1
1 2
2 1
1 2
1 2
2 2
1 2
1 2
2 2
1 1
2 2
2 1
2 1
2 2
1 2
1 1
2 1
1 2
1 2
1 1
2 2
1 1
1 2
1 1
2 1
1 1
1 1
2 1
1 1
1 1
1 2
2 1
2 2
2 2
2 2
1 1
1 2
1 2
1 1
2 2
1 2
2 1
1 1
2 2
1 1
2 2
2 2
1 1
1 2
2 2
1 2
2 2
1 2
2 2
1 2
1 1
2 2
2 1
1 1
2 1
2 2
2 1
1 2
1 1
1 2
2 1
2 1
1 1
2 1
1 1
2 1
1 1
2 1
1 1
1 1
1 2
2 2
2 1
1 2
1 2
2 1
2 1
2 2
2 2
1 2
2 2
1 2
2 1
2 2
2 1
1 1
1 2
1 1
1 1
1 2
2 2
2 2
2 1
1 1
1 2
1 1
1 1
1 2
1 1
2 1
2 2
1 2
1 1
1 2
2 1
1 1
2 2
2 2
1 1
1 1
2 2
1 1
2 1
1 1
2 2
1 1
2 1
2 1
2 1
2 2
2 2
1 2
1 2
1 2
1 1
2 2
2 2
1 1
2 1
2 1
1 1
2 2
1 1
1 2
1 2
1 1
1 1
1 1
2 2
2 1
1 2
1 1
2 1
1 1
1 2
2 2
2 1
2 1
1 1
1 2
2 1
2 1
1 1
2 2
2 2
1 1
1 2
2 1
1 1
1 2
2 2
2 2
2 1
1 2
2 1
1 2
2 2
1 2
2 1
1 1
2 1
2 1
1 1
1 2
2 2
1 2
2 2
2 2
1 1
2 2
2 2
1 1
1 2
2 2
2 1
2 1
2 1
1 1
2 1
2 2
1 1
2 2
2 1
2 2
2 1
2 1
1 2
2 1
2 2
1 1
1 1
2 1
1 2
2 1
1 2
1 2
2 2
1 2
1 1
2 2
2 1
1 1
2 1
2 1
1 2
2 1
1 1
1 1
2 1
1 2
1 1
2 1
2 2
2 1
1 2
1 1
2 2
1 1
1 2
2 2
2 2
2 1
1 2
1 2
2 2
2 1
1 1
1 1
2 2
1 1
2 1
2 2
1 1
1 2
1 2
2 1
1 2
2 1
1 1
2 1
1 1
1 2
2 2
2 1
2 2
2 1
2 1
1 1
1 2
2 1
1 1
2 2
2 2
1 1
2 1
2 1
1 2
1 2
2 2
1 1
1 2
2 1
1 2
1 2
2 1
1 1
1 1
1 1
2 1
2 2
2 1
2 2
2 2
2 1
1 2
2 1
2 2
2 2
1 1
1 2
1 1
2 2
2 2
2 2
1 2
1 1
2 2
1 2
2 1
1 2
2 2
1 1
1 2
1 2
1 1
2 1
2 1
2 2
2 2
1 2
1 2
1 2
2 2
1 2
1 2
2 1
2 1
1 1
1 1
1 1
1 1
2 2
1 1
2 2
1 1
1 1
2 2
1 2
1 2
2 1
2 2
2 2
2 1
2 2
1 1
1 1
2 1
2 2
2 2
2 2
1 2
1 2
2 2
1 2
1 1
2 2
2 1
1 2
2 1
1 1
2 2
1 1
2 1
2 1
2 2
2 2
2 1
1 2
1 1
1 2
1 2
1 2
2 1
1 1
1 2
1 2
1 1
2 2
2 2
2 1
1 1
1 1
1 1
1 2
1 2
1 1
1 1
2 2
1 2
1 1
1 2
1 2
2 1
1 2
2 2
2 1
2 1
1 1
2 1
2 1
2 2
1 2
1 2
2 2
2 2
2 2
2 2
1 1
2 2
2 2
2 2
1 1
1 1
2 2
1 1
1 1
2 1
2 2
1 2
2 1
1 2
1 1
1 1
2 1
1 1
1 1
1 2
1 1
2 2
1 1
1 2
1 1
2 2
1 2
2 2
1 2
2 1
1 1
1 2
2 1
1 1
2 2
2 2
2 1
2 1
1 2
2 1
2 1
2 2
2 1
1 2
1 2
1 2
2 2
2 1
2 1
2 2
2 1
1 2
1 1
1 2
2 2
1 1
2 2
2 2
2 1
1 2
2 1
1 2
1 1
2 1
2 2
1 1
1 2
1 2
1 1
1 2
2 1
1 1
1 1
2 1
1 1
2 2
2 1
1 1
2 2
1 1
2 2
2 1
1 2
1 2
1 1
1 1
1 1
1 2
1 1
1 1
2 1
1 1
1 2
1 1
2 2
1 2
1 2
2 2
2 2
1 1
1 2
1 2
1 1
1 2
2 2
2 1
1 2
2 2
2 2
2 2
2 2
1 2
1 2
1 1
2 2
1 2
2 1
2 1
2 2
2 2
1 1
2 2
1 1
2 2
1 1
1 1
1 1
1 2
1 2
2 1
1 2
1 1
2 2
2 1
1 2
1 2
2 2
1 2
1 2
1 1
1 1
1 2
1 2
1 2
1 2
1 2
1 1
1 2
2 2
2 1
1 1
2 2
2 1
2 2
2 1
1 2
1 2
2 2
1 1
2 1
2 1
2 1
1 2
1 1
1 2
2 2
2 2
1 1
1 1
2 2
2 1
1 1
1 1
2 1
2 1
2 1
2 2
1 2
1 2
1 2
1 1
2 1
1 1
2 2
2 1
2 2
2 2
2 1
2 2
1 2
1 1
1 2
2 1
1 1
2 1
2 1
2 1
2 1
2 2
2 1
2 2
1 1
2 2
2 2
1 1
2 2
1 2
1 1
2 2
2 1
2 1
1 1
1 2
1 2
1 1
1 1
2 2
2 2
1 1
1 1
1 1
1 2
1 2
2 1
2 2
2 1
2 1
1 2
2 2
1 2
2 2
2 1
1 2
1 1
1 1
2 1
2 2
1 1
2 1
1 2
2 2
1 1
2 2
1 2
1 1
1 2
1 1
2 2
2 2
2 2
2 1
1 1
2 1
1 2
2 1
1 1
2 2
1 2
2 2
2 1
2 1
1 1
2 2
2 1
2 1
2 2
1 2
2 2
1 2
1 1
1 2
2 1
1 1
1 1
2 1
2 2
1 2
1 1
1 2
2 1
1 2
1 1
2 1
1 1
2 1
1 1
1 1
2 1
2 2
2 1
2 1
1 1
2 1
2 1
2 2
1 2
1 2
1 1
1 1
1 1
1 2
1 2
2 2
2 2
1 2
1 2
1 1
2 2
1 1
1 2
2 1
1 1
2 1
1 2
1 1
1 1
1 1
1 2
2 1
1 2
1 2
1 1
1 1
2 1
1 1
1 1
1 1
2 1
1 2
1 2
1 2
1 2
2 1
1 2
2 2
1 2
1 2
2 1
1 1
1 1
2 1
1 1
2 1
2 2
1 1
1 2
2 1
1 2
2 2
1 1
2 2
2 2
2 1
2 1
2 2
2 1
2 1
2 1
2 2
1 1
2 2
2 1
1 1
2 2
2 2
1 2
2 2
2 2
2 1
2 2
2 2
2 2
1 1
1 1
1 1
2 2
2 1
1 2
2 1
1 2
1 1
1 1
1 2
2 2
1 1
2 2
2 1
2 1
1 2
1 1
1 1
2 2
2 2
2 1
1 2
2 1
2 1
2 2
2 1
1 1
2 2
1 1
2 1
1 1
1 1
2 2
2 2
1 2
2 2
2 2
1 2
2 2
2 1
1 1
1 1
1 1
2 2
1 1
1 1
2 1
1 2
1 2
2 1
1 1
1 1
1 1
1 2
2 1
2 2
1 1
1 1
2 1
2 2
2 1
2 1
1 1
1 2
2 1
1 2
2 1
1 2
1 2
1 2
1 2
1 2
2 2
1 1
2 1
2 2
1 1
1 1
2 1
1 2
1 1
2 2
1 1
1 2
1 2
1 1
1 2
1 2
1 1
1 1
2 1
1 2
1 1
2 2
2 1
2 2
2 2
2 2
2 2
1 2
2 1
2 2
2 1
1 2
2 2
2 1
2 1
2 2
1 2
1 1
1 2
1 2
1 1
2 2
2 2
1 2
1 1
2 2
2 1
1 2
1 1
1 2
1 1
2 1
2 1
2 1
2 1
2 1
2 2
1 2
2 1
1 1
1 1
1 1
1 2
1 2
1 2
1 2
1 1
1 1
2 2
2 2
2 1
1 2
2 1
1 2
2 1
2 1
2 2
2 1
2 1
2 1
1 1
2 2
1 1
1 2
2 2
2 1
1 1
2 1
2 1
2 2
1 1
1 1
1 2
1 1
2 1
2 2
2 2
1 1
2 2
2 2
2 1
2 2
2 2
2 2
1 1
2 2
1 2
1 2
2 1
1 1
1 1
2 2
2 1
2 1
1 2
1 1
2 1
1 1
2 2
1 1
1 1
1 2
1 1
2 1
2 1
2 1
2 1
2 1
2 1
1 2
1 1
1 2
1 1
2 1
2 1
2 1
1 2
2 2
2 2
2 1
1 1
1 2
1 2
1 2
1 2
1 2
2 2
2 2
2 2
1 2
2 2
1 2
1 2
2 2
2 2
1 1
2 1
1 2
1 1
1 1
2 1
2 1
1 1
1 1
1 1
1 1
1 1
2 1
1 2
1 2
2 2
2 2
2 1
2 1
1 1
2 2
1 1
2 1
2 1
1 1
2 1
2 1
2 1
1 2
1 1
1 1
1 2
1 2
2 2
2 1
1 1
1 1
2 1
1 2
2 2
1 1
1 2
2 2
2 2
2 2
2 1
1 2
1 1
2 1
2 1
1 2
2 1
2 1
1 1
1 1
1 1
2 2
1 2
2 1
1 1
2 2
1 1
1 1
2 2
1 2
2 2
1 2
1 2
2 1
1 1
2 2
1 1
1 1
2 1
1 2
2 1
1 1
2 1
1 2
1 2
1 2
2 1
2 2
1 2
1 2
2 1
2 1
1 1
2 2
2 2
2 2
1 1
1 2
1 1
2 2
2 2
2 1
1 2
2 2
2 2
1 1
2 2
1 1
1 2
2 2
2 2
1 2
2 1
1 2
1 2
1 2
2 1
1 1
2 2
2 1
2 2
2 1
1 1
1 1
2 2
2 1
1 2
2 2
2 2
2 1
1 2
1 2
1 2
2 2
2 2
2 1
2 2
2 1
1 2
2 2
1 2
1 2
2 2
1 1
2 2
2 2
1 1
2 1
1 2
1 1
1 1
2 2
1 1
2 2
1 1
1 1
1 1
2 2
2 2
1 1
2 2
1 2
2 1
2 2
2 2
2 2
2 2
1 2
1 1
2 2
2 1
1 1
1 1
1 1
1 1
1 2
2 1
2 1
1 2
2 2
1 2
1 2
1 2
2 2
2 2
2 1
1 1
2 2
2 2
1 1
1 1
1 1
1 2
1 1
1 2
1 1
2 1
1 2
2 2
1 2
2 2
1 1
2 2
1 2
2 2
2 2
1 2
2 1
2 2
2 2
1 1
1 1
2 1
2 1
1 1
1 2
1 2
2 1
1 2
1 1
2 1
1 2
1 1
2 1
2 1
1 2
1 1
1 1
1 1
1 2
1 1
2 2
2 2
2 2
1 1
1 2
1 1
1 2
2 1
1 2
1 1
1 1
2 1
1 2
1 2
2 1
1 1
2 1
1 1
1 1
2 2
1 2
2 1
1 2
1 2
1 2
2 2
2 1
1 2
2 2
2 2
1 2
2 1
2 2
1 2
1 2
1 2
1 2
1 1
1 1
1 1
1 2
2 1
2 2
1 1
1 1
2 2
2 2
1 1
2 1
2 1
1 2
1 1
2 2
2 1
2 2
2 1
2 1
1 1
2 1
1 1
1 1
1 2
1 2
2 1
2 2
2 2
2 2
1 1
2 1
2 2
1 1
1 2
1 1
1 1
1 2
2 2
2 2
2 2
1 1
1 2
1 1
2 2
1 2
2 1
1 2
2 2
1 2
1 2
2 1
1 1
1 1
1 1
1 2
1 2
1 1
2 1
1 1
1 1
1 1
1 2
2 1
2 2
1 2
2 2
2 1
1 1
1 2
2 1
1 2
1 2
1 1
2 1
2 2
2 2
2 2
1 2
1 2
1 1
2 1
1 1
1 2
1 2
2 1
2 2
2 1
1 1
1 1
1 1
1 2
2 2
1 2
2 2
2 2
1 1
2 1
1 1
2 2
1 1
1 2
1 1
1 2
2 1
1 1
2 1
2 2
2 2
2 2
1 1
1 2
1 2
2 2
2 1
2 1
2 1
2 1
2 2
1 2
1 1
1 1
1 1
2 1
1 2
2 2
2 1
2 2
2 2
2 2
2 1
1 1
1 1
1 1
2 1
1 1
2 1
1 1
2 1
2 2
1 1
2 1
2 1
2 1
2 2
1 2
2 2
1 2
2 1
1 1
2 1
2 2
1 1
2 1
1 2
1 2
2 1
2 1
2 1
2 1
2 1
2 2
2 1
1 2
1 1
1 1
1 1
1 2
2 2
1 1
1 1
1 2
1 1
1 1
1 1
1 2
2 1
1 2
1 2
1 2
2 2
2 1
2 1
1 2
1 2
1 2
2 1
2 1
1 1
1 1
1 2
2 2
1 2
2 1
2 2
1 2
2 2
1 1
2 1
2 2
2 2
2 2
1 1
1 1
1 2
2 2
2 2
1 1
2 1
1 2
2 2
2 2
1 2
2 2
2 1
1 2
1 2
1 2
1 2
2 2
2 1
2 1
2 1
1 1
2 2
2 1
1 2
1 1
2 1
2 2
1 1
2 2
2 2
1 1
2 2
1 2
1 2
1 1
2 2
1 2
1 1
1 1
1 2
1 2
2 1
1 2
1 1
1 1
1 2
2 1
1 2
1 2
2 1
1 1
1 1
2 1
2 2
2 2
1 1
1 2
2 2
1 2
2 1
1 2
1 1
1 2
1 1
2 1
2 2
2 1
2 1
2 2
2 2
2 2
1 2
1 1
2 1
1 2
1 1
2 2
2 1
1 2
1 2
2 1
1 2
1 2
2 1
1 1
2 2
1 2
1 2
2 1
2 1
2 2
2 1
1 2
1 1
1 1
1 2
1 2
2 1
1 2
1 2
1 2
1 2
1 1
1 1
1 1
2 2
1 1
2 2
1 1
1 2
2 2
1 1
2 1
2 2
1 1
2 2
2 2
1 2
2 1
2 1
2 2
2 2
1 1
2 2
1 1
2 1
2 1
1 1
1 2
2 2
2 1
2 2
2 2
2 2
2 2
2 2
2 1
2 1
1 1
1 1
2 1
2 2
1 1
2 1
1 2
1 1
2 2
2 1
1 2
2 1
1 2
2 1
2 1
2 1
2 1
2 1
1 2
1 2
2 1
1 2
2 1
1 2
1 1
2 2
2 1
2 1
2 2
2 2
2 1
1 2
1 2
1 2
2 1
2 2
2 2
1 2
1 2
1 1
1 2
2 2
2 2
1 2
1 2
2 2
2 1
2 1
2 1
2 2
1 1
2 1
1 2
1 2
1 1
1 2
2 1
1 2
1 2
2 2
2 1
1 1
2 1
1 2
1 1
2 2
1 2
2 2
1 2
2 2
1 1
2 2
2 2
1 2
1 2
2 1
2 2
1 1
1 2
2 1
2 1
1 2
2 2
1 2
1 1
2 1
2 1
2 2
1 2
2 1
2 1
2 1
1 1
1 1
2 1
2 2
2 2
2 2
2 1
2 2
2 1
2 2
2 2
1 2
1 1
1 2
1 2
1 2
2 1
2 1
1 2
2 2
1 1
2 1
2 2
2 2
1 1
2 2
2 2
1 1
2 2
2 1
2 1
2 1
1 2
2 2
1 1
2 1
1 1
2 1
2 2
1 2
2 2
2 2
2 2
2 1
2 2
2 1
1 1
2 2
1 1
1 1
1 1
2 1
2 1
1 2
2 2
1 1
1 2
1 2
2 1
2 1
1 1
2 2
1 1
2 1
2 2
2 1
1 1
1 1
2 1
1 1
2 1
2 2
1 2
1 2
2 1
1 2
1 2
2 2
2 2
1 1
2 1
1 2
1 1
2 1
2 1
2 1
1 2
2 1
2 2
2 1
1 2
2 2
2 1
2 1
1 1
1 1
2 1
2 1
1 1
2 2
1 2
1 2
2 1
1 1
2 1
1 1
2 2
1 1
1 2
1 1
1 2
1 2
1 1
2 1
2 2
1 1
1 1
1 1
1 2
1 1
2 2
1 1
2 2
1 2
1 1
1 1
2 2
2 1
1 2
2 1
1 2
1 2
2 1
1 2
1 1
1 2
2 2
1 2
1 2
2 1
1 1
1 1
2 2
2 1
2 2
1 1
1 2
1 2
1 2
2 2
1 2
1 1
1 1
2 2
2 1
2 1
1 1
2 2
2 2
1 2
2 1
2 2
1 1
1 1
1 1
1 2
2 2
1 2
2 2
1 2
1 2
1 2
2 1
1 1
1 2
1 1
2 2
1 2
2 2
1 1
2 1
2 2
1 1
1 1
1 2
1 2
1 2
1 1
1 1
2 2
2 2
1 1
1 1
2 1
1 2
1 1
2 1
1 2
2 1
1 2
1 2
1 2
2 1
2 1
2 2
2 2
2 1
2 2
1 2
1 2
1 1
1 2
2 2
1 2
2 1
1 1
2 2
1 1
2 1
2 2
2 2
1 1
2 1
2 2
2 1
1 2
2 2
1 2
2 1
2 2
2 2
2 1
2 2
1 1
2 1
2 1
2 1
1 2
1 1
1 2
2 1
2 1
1 2
2 2
2 2
2 1
2 2
1 2
2 1
1 1
2 2
2 1
1 2
2 1
1 1
1 1
1 2
1 1
1 2
2 2
1 2
1 1
2 1
2 2
2 2
1 2
2 2
2 1
2 2
1 2
1 2
2 2
1 2
1 2
1 2
2 2
1 1
2 1
2 2
2 2
1 1
2 2
1 1
1 1
2 1
1 1
1 2
1 1
2 2
1 2
1 1
2 1
1 2
2 1
2 2
2 2
1 2
1 2
2 1
2 1
1 2
1 2
1 2
2 2
1 2
2 2
1 2
1 2
1 2
1 1
2 2
1 1
2 2
2 2
2 1
1 1
1 2
1 2
2 1
1 2
1 1
2 2
2 1
2 2
2 1
2 2
1 1
2 1
1 1
2 2
2 1
2 1
1 1
2 1
2 1
2 2
1 2
1 2
1 1
1 1
1 1
1 2
2 2
2 2
2 1
2 2
1 2
2 1
1 2
2 1
2 1
1 1
1 2
2 1
2 2
2 2
1 2
1 2
1 2
1 1
1 1
1 1
2 1
1 2
2 1
1 2
1 1
2 1
2 2
1 2
1 1
1 2
2 1
2 2
1 2
1 2
2 1
1 2
2 1
1 1
1 2
2 1
2 1
2 2
1 2
1 1
2 1
2 2
1 1
1 2
2 2
2 2
2 2
1 2
2 2
2 2
1 2
2 1
1 2
2 2
2 1
1 2
2 1
2 1
2 1
2 1
1 1
2 2
1 1
1 2
2 1
1 2
2 2
1 2
1 1
1 1
1 2
2 2
2 1
2 1
2 2
1 2
2 1
1 1
1 2
2 2
1 1
2 1
1 1
2 1
1 1
1 2
2 2
1 2
1 1
1 2
2 2
2 2
1 1
2 1
1 2
2 1
2 2
1 1
2 1
1 1
1 2
2 2
2 1
2 1
1 2
2 1
2 1
2 2
2 1
2 1
1 2
2 2
2 2
1 1
2 2
2 2
2 2
1 2
1 2
2 1
2 2
1 2
1 2
2 2
2 2
1 1
2 1
1 2
2 1
2 1
1 2
2 2
2 1
1 2
2 1
1 2
2 1
1 1
1 2
1 2
1 2
1 2
1 1
2 1
1 2
2 1
2 1
2 1
2 2
2 1
2 1
1 1
1 2
1 2
1 1
1 2
2 2
2 1
2 1
1 2
2 2
2 1
1 2
2 1
2 2
2 2
2 1
2 2
2 2
1 2
2 2
1 2
2 2
1 1
2 2
2 2
1 2
2 2
2 2
1 1
2 2
2 1
1 1
2 1
2 1
1 2
2 1
1 2
1 2
1 1
1 1
2 2
1 2
2 1
2 1
1 2
1 2
2 1
1 1
1 1
1 1
2 2
2 2
2 2
2 2
1 2
2 2
1 2
1 1
2 1
1 2
2 2
2 1
1 2
1 1
2 2
2 1
1 2
2 2
2 2
2 2
2 1
2 2
2 1
1 2
2 2
2 1
2 1
1 1
2 1
2 2
2 1
2 1
1 1
2 2
2 2
1 1
2 1
1 2
1 2
2 1
1 2
2 2
1 1
1 2
1 2
1 1
1 1
2 2
1 1
1 2
2 1
1 1
2 1
1 1
2 1
2 1
1 1
1 1
2 2
2 1
2 1
2 2
2 1
1 1
2 2
2 1
2 1
1 1
2 1
2 2
2 1
1 2
1 1
1 1
2 2
2 1
2 2
2 2
1 2
1 2
1 1
1 1
1 1
2 1
2 2
1 1
1 2
1 2
2 2
2 2
1 2
2 2
2 1
2 1
2 2
2 2
2 1
2 2
1 1
2 1
1 2
1 1
1 1
1 1
2 1
2 2
2 2
1 2
1 1
1 2
2 2
2 2
1 1
2 1
1 2
1 1
2 1
2 2
1 2
1 2
2 1
2 2
1 1
2 1
2 2
2 1
1 1
2 1
1 1
2 2
2 2
2 2
1 2
2 2
2 1
1 1
1 1
2 1
1 1
2 2
2 1
1 2
2 2
2 1
1 1
2 2
2 1
2 1
1 2
1 1
1 1
1 2
2 2
2 1
1 1
1 2
1 1
2 1
2 2
1 2
1 1
1 1
1 2
2 2
2 2
2 2
2 2
1 1
2 1
2 1
2 2
1 2
1 1
2 2
2 1
1 1
1 2
2 1
2 2
1 1
1 2
1 2
1 2
1 2
1 1
1 2
1 1
1 2
1 1
2 1
1 1
2 1
1 1
1 2
1 2
1 1
2 1
1 1
2 2
2 1
2 1
1 2
1 2
2 2
1 2
2 2
1 2
2 1
2 1
1 2
2 1
1 1
1 2
1 1
1 1
2 1
1 2
1 2
1 1
2 2
1 1
1 2
2 1
1 2
2 2
1 2
2 2
2 2
2 1
1 1
2 1
2 2
2 1
2 2
1 2
2 2
1 1
2 1
2 1
2 2
2 1
1 1
1 1
2 1
1 1
1 2
2 1
1 1
2 2
1 1
2 2
1 1
2 1
2 2
2 1
1 1
1 1
1 2
2 1
1 1
2 2
2 2
2 1
1 2
2 2
1 1
2 2
1 1
2 1
2 2
2 2
2 1
1 1
1 1
1 2
1 2
2 1
2 2
2 1
1 1
2 2
2 1
2 2
2 2
1 2
1 2
2 1
2 1
2 1
1 1
2 2
2 2
2 1
2 1
1 1
1 1
1 2
2 1
2 2
1 1
1 2
2 2
2 2
2 1
1 1
2 1
1 1
2 1
2 2
2 2
1 1
2 2
1 1
1 2
1 2
1 1
2 2
1 2
1 1
2 1
2 1
1 1
1 2
2 1
2 1
2 1
2 1
1 1
2 2
1 1
1 2
2 1
1 2
2 2
1 2
2 2
1 1
2 2
2 1
2 1
2 1
1 1
2 1
2 1
1 2
2 1
1 2
1 1
1 1
1 2
1 2
2 2
1 2
2 2
2 2
2 2
1 2
2 2
2 1
1 1
1 1
2 1
2 1
2 1
1 1
2 1
1 2
1 2
1 1
2 2
1 2
2 1
1 1
1 2
1 1
1 1
1 2
1 1
2 1
1 1
2 2
1 2
1 2
2 1
2 1
2 2
1 2
2 1
2 1
2 1
1 2
1 1
1 1
1 2
1 1
2 1
1 1
1 1
2 1
2 2
2 1
1 1
2 1
1 1
2 1
1 2
1 2
1 1
2 1
2 1
2 1
1 1
1 2
2 2
2 1
2 1
2 2
1 1
1 2
2 2
2 2
1 2
1 2
1 1
2 1
2 1
1 1
1 2
1 1
1 2
2 1
1 2
2 2
1 1
1 1
2 1
1 2
2 1
1 2
1 1
2 2
1 2
1 2
1 1
1 1
2 1
1 1
2 2
2 2
2 1
2 1
1 2
2 2
2 2
2 2
2 2
2 1
1 2
2 2
1 1
1 2
2 1
2 2
2 1
1 1
1 1
1 2
2 2
2 2
2 2
2 2
1 2
2 1
2 2
1 1
2 2
1 2
2 2
1 2
2 2
1 2
2 1
2 2
2 1
1 2
2 1
1 1
2 2
2 1
1 2
2 1
1 2
2 1
1 1
2 1
1 1
2 2
2 1
1 2
2 2
1 2
2 1
1 2
2 2
2 2
1 1
2 2
2 1
2 2
1 2
2 2
1 2
2 1
2 2
1 2
2 1
1 2
2 2
1 2
1 1
1 2
1 2
2 1
1 1
2 1
2 1
2 2
2 2
1 2
2 1
1 1
2 1
1 1
1 2
2 1
1 1
1 2
2 2
1 2
2 1
2 1
1 1
2 2
2 2
2 1
2 2
1 1
2 1
1 2
1 2
1 1
2 2
2 2
2 1
1 1
1 2
2 1
1 1
2 2
2 1
2 1
2 2
1 2
2 2
1 1
2 2
1 2
2 2
2 2
1 2
2 1
2 2
1 1
1 1
2 2
1 1
2 1
1 2
2 2
2 1
2 2
2 1
2 1
1 2
1 2
2 1
1 1
1 1
2 2
2 1
1 1
1 2
1 1
1 2
1 1
2 1
1 2
1 2
2 2
1 2
1 1
2 1
2 1
2 1
1 1
1 2
1 1
2 2
2 1
2 1
2 2
2 1
1 2
1 1
2 1
1 1
1 1
1 2
2 2
2 1
1 2
1 1
1 1
2 1
1 2
2 2
2 2
1 1
2 2
2 2
2 2
2 1
2 1
1 2
1 2
1 2
2 2
2 2
1 1
2 1
1 1
1 1
2 2
2 2
2 1
1 2
1 1
2 2
2 2
2 1
2 1
2 2
2 2
1 2
2 2
2 2
2 2
2 2
2 1
2 1
1 1
1 1
1 2
1 1
1 2
1 2
1 2
2 2
1 2
2 2
2 2
2 2
2 2
2 1
1 1
1 2
2 2
2 1
2 1
2 2
2 1
2 2
2 1
1 1
1 2
2 1
1 2
1 1
1 1
1 1
2 2
2 2
2 2
1 1
2 2
1 1
1 2
2 1
1 2
2 1
2 2
1 2
1 1
2 1
1 2
1 1
2 1
1 1
1 2
1 2
2 1
2 1
1 1
1 1
2 1
1 1
2 2
1 1
1 2
1 2
1 2
1 1
1 2
1 2
2 1
2 2
2 2
1 2
1 1
1 2
2 1
1 1
2 1
2 2
2 2
2 1
1 1
1 1
1 1
2 2
1 1
1 1
1 1
2 2
2 2
2 2
2 1
2 1
1 2
1 2
1 2
1 1
2 1
2 1
2 1
2 1
2 1
2 1
2 2
2 2
2 1
1 1
1 1
2 2
2 2
2 2
2 2
1 1
1 1
1 1
2 2
1 2
1 2
1 1
2 2
2 2
2 1
2 2
2 1
1 2
2 1
1 2
2 1
1 1
1 1
1 1
2 1
1 2
1 2
1 1
1 1
1 1
2 2
2 2
1 1
1 1
2 2
2 2
1 1
1 1
2 2
1 2
2 2
1 1
2 2
2 1
1 1
2 1
1 1
1 1
1 1
2 2
2 2
1 2
1 2
2 2
2 2
1 1
1 2
2 1
1 1
1 1
1 1
1 2
2 1
1 1
1 1
2 2
1 1
1 2
1 1
2 2
1 1
1 1
1 1
1 2
2 1
2 2
2 1
2 1
2 2
2 1
2 1
1 1
2 1
2 2
1 1
2 2
2 2
1 1
2 2
2 2
1 1
1 2
1 1
1 2
2 2
1 1
1 1
1 1
2 2
1 2
1 2
2 1
2 1
1 2
2 2
2 1
1 1
2 2
2 2
1 1
2 2
1 2
2 2
1 1
2 2
1 1
1 2
1 1
2 1
1 1
1 1
2 2
2 1
1 2
2 2
1 2
1 1
1 2
2 1
1 2
1 2
1 1
1 2
2 2
1 2
1 1
1 2
2 2
2 1
1 2
2 1
2 1
1 2
1 1
1 2
1 2
2 2
2 2
1 1
2 1
1 2
2 1
2 1
1 1
1 1
1 1
2 2
1 1
1 1
2 1
1 1
2 2
1 2
2 1
2 2
1 2
2 1
2 1
1 2
2 1
1 1
1 1
2 1
2 1
2 1
2 1
2 2
2 2
2 1
1 2
2 2
2 1
2 2
1 1
1 1
1 2
2 2
2 2
2 2
2 1
1 2
1 2
1 2
2 1
1 1
1 1
1 2
1 1
2 2
1 2
1 1
2 2
2 2
1 2
2 1
2 2
1 2
2 2
2 1
1 1
1 2
2 1
1 2
1 2
1 1
2 2
1 2
2 2
1 1
1 2
1 1
2 1
2 1
1 1
2 2
1 1
2 1
1 2
2 1
2 1
1 1
2 2
2 2
1 2
1 2
2 1
1 1
1 2
2 1
2 2
2 2
1 2
2 2
1 1
2 2
2 2
2 1
2 1
2 1
2 2
2 1
1 1
1 1
2 1
1 1
1 2
1 2
2 2
2 2
1 1
1 1
2 1
1 1
1 1
2 2
2 2
1 1
1 2
2 1
1 2
1 2
1 2
2 1
2 1
2 2
1 2
1 1
2 1
2 1
1 1
2 2
2 2
1 2
2 2
2 2
2 1
2 2
2 2
1 2
2 2
1 2
1 1
2 1
1 1
2 1
1 1
2 1
1 2
1 2
2 2
1 2
2 2
1 2
2 2
1 1
1 1
2 2
2 1
2 1
1 1
1 2
1 2
1 1
1 2
2 1
1 1
2 2
1 1
1 1
2 2
2 1
1 1
1 2
1 1
1 2
1 1
2 2
2 1
1 2
2 1
1 2
1 2
2 2
2 1
1 2
1 1
1 1
1 2
1 2
2 2
1 1
1 2
1 1
2 1
1 2
1 2
2 1
1 1
1 2
2 1
1 1
2 1
1 2
1 2
1 1
1 2
1 1
2 1
1 1
2 1
2 2
1 2
2 2
1 2
2 2
2 1
1 1
2 2
2 1
1 1
1 2
2 1
1 2
1 2
1 2
2 2
2 1
2 1
1 1
1 1
2 2
1 1
2 1
1 1
1 2
1 2
1 1
1 1
2 2
2 2
1 2
1 2
1 2
1 2
2 2
2 2
2 1
1 1
1 2
2 2
1 1
1 1
2 1
2 2
1 2
2 2
1 2
2 1
1 1
1 1
2 2
2 2
2 2
1 2
2 2
2 2
1 2
1 2
1 1
2 1
1 1
1 2
1 2
2 1
1 1
1 1
1 1
1 1
1 2
1 2
1 1
1 1
1 1
2 1
2 2
2 2
1 2
2 1
2 2
1 1
2 1
2 1
1 2
2 2
1 1
2 1
2 2
2 1
2 2
1 2
2 2
2 1
1 2
1 1
1 1
2 2
1 1
1 2
1 2
2 1
1 1
1 2
1 1
1 1
2 2
1 1
1 2
2 1
2 2
2 1
2 2
2 1
2 1
1 2
1 1
1 2
2 1
2 2
2 2
1 1
1 2
1 2
2 2
1 2
2 1
2 1
1 2
1 2
2 1
2 1
2 2
2 2
2 2
2 2
1 1
1 1
1 1
2 2
2 2
1 2
2 2
1 2
2 2
1 2
1 2
2 1
2 2
2 1
1 1
2 1
2 1
1 2
1 2
2 2
1 1
1 1
1 2
2 1
2 1
1 2
2 1
2 2
1 2
2 1
2 1
1 2
1 2
2 2
1 1
2 1
1 1
2 1
2 2
2 1
2 1
2 1
1 1
2 2
2 2
1 1
1 1
1 1
2 2
1 2
2 2
2 1
2 1
2 1
2 1
2 1
2 1
2 2
2 2
2 1
1 1
2 1
2 1
2 2
2 1
1 2
2 2
1 2
2 1
1 1
2 1
2 2
1 2
2 2
1 2
2 2
2 1
1 1
2 2
2 2
1 2
2 2
2 1
1 1
1 1
2 1
2 1
1 2
2 1
2 1
2 2
2 1
1 2
2 1
2 1
1 2
1 1
2 2
1 2
2 2
2 1
1 1
2 1
2 1
2 2
1 1
2 2
2 1
2 1
1 1
1 1
2 2
1 1
2 2
2 1
1 1
2 1
2 1
2 2
1 1
1 1
2 1
1 2
2 2
2 1
1 1
1 1
2 1
2 2
2 1
2 2
1 2
2 1
1 1
1 1
1 2
2 1
1 2
2 2
1 2
1 1
2 2
2 1
1 2
1 1
1 1
1 2
2 1
2 2
1 1
2 2
1 1
1 2
1 2
2 2
2 1
2 1
1 1
2 2
1 2
1 2
1 1
2 1
1 1
2 2
2 2
2 2
2 2
1 1
1 2
2 1
2 2
2 2
2 2
2 1
1 1
1 1
1 2
2 1
2 2
2 1
1 2
1 2
1 2
1 1
1 2
1 1
2 1
2 2
1 2
1 1
2 2
1 1
1 1
2 1
1 2
2 1
1 2
2 1
1 1
2 2
2 2
2 1
1 1
1 2
2 1
1 1
2 1
2 1
2 1
2 1
2 1
1 1
1 1
1 2
2 1
1 2
1 2
2 2
2 2
2 2
2 1
2 2
1 2
2 2
1 2
1 1
2 1
1 2
1 1
1 2
2 1
1 2
1 2
1 1
2 1
1 1
2 1
1 2
2 1
2 1
2 2
1 2
2 1
1 1
1 2
1 2
1 2
1 1
2 2
1 1
1 1
2 2
2 1
2 2
1 2
2 1
2 2
2 1
2 1
1 1
1 2
2 1
1 2
1 2
1 2
2 2
1 1
1 2
1 2
2 1
2 2
2 1
2 2
2 2
1 1
2 2
1 2
1 1
2 1
2 1
1 1
2 1
1 1
2 2
2 1
2 2
2 2
2 2
2 1
2 2
1 2
2 2
2 1
1 1
1 2
2 1
2 1
1 2
2 1
1 2
2 1
2 2
2 1
2 1
1 2
1 1
1 2
1 2
1 1
2 2
2 1
2 2
2 2
1 1
1 1
1 1
1 2
1 1
1 1
2 1
2 1
2 2
1 1
2 1
2 1
1 2
1 1
2 1
1 1
1 1
1 1
1 1
2 2
1 2
2 1
1 1
2 1
1 1
2 1
2 2
1 1
1 1
2 2
1 1
1 1
1 1
1 1
2 1
2 1
1 1
2 2
2 2
1 1
2 2
2 2
1 1
2 1
2 1
2 1
2 1
1 1
2 2
1 2
2 2
1 2
2 1
2 1
2 1
1 1
1 1
2 1
1 1
2 2
2 2
2 2
1 2
2 2
1 1
1 2
1 2
2 2
1 1
1 1
1 2
2 2
2 2
2 2
1 1
2 2
2 2
2 2
1 2
2 1
1 1
2 1
2 2
1 1
2 2
1 2
1 2
1 2
1 2
1 2
2 2
2 1
2 2
1 2
1 2
2 2
2 1
2 2
1 1
2 2
2 1
2 1
2 1
2 1
1 1
1 2
2 1
1 1
1 1
2 2
2 1
2 1
2 2
2 2
1 1
2 2
2 2
2 2
2 1
2 1
1 1
1 2
2 2
1 2
2 2
2 2
1 1
2 2
1 2
2 1
2 2
1 2
2 2
1 2
1 2
2 1
2 2
2 2
1 2
2 1
1 2
2 2
2 1
1 1
1 1
2 2
1 1
1 1
2 2
1 2
2 2
1 2
1 1
1 1
2 1
2 1
2 2
2 1
2 2
2 2
1 2
1 2
2 2
1 2
1 2
1 2
1 2
1 2
2 1
2 1
2 1
2 2
1 2
2 2
1 2
1 1
1 1
1 1
1 2
2 2
1 2
1 2
2 2
1 2
2 1
2 2
1 2
2 2
1 1
2 2
1 2
2 1
1 1
1 1
1 2
1 2
1 2
2 2
1 1
2 1
2 2
1 1
2 1
1 1
1 2
2 2
2 2
2 2
1 2
1 2
1 1
1 1
2 1
1 2
2 1
2 2
1 1
1 1
2 1
2 1
2 2
1 2
1 2
1 2
2 1
1 2
2 2
2 2
2 2
1 2
1 1
2 1
2 1
1 2
1 1
1 1
2 2
2 1
2 2
1 1
2 1
2 1
1 2
1 1
2 2
1 1
1 2
2 1
1 1
1 1
2 1
2 2
1 2
1 2
1 2
2 1
1 1
2 2
1 2
2 1
1 2
1 2
2 2
2 1
1 1
2 2
2 1
2 1
2 1
1 2
2 1
2 1
1 2
2 2
2 1
1 1
1 1
2 1
2 1
1 1
1 2
2 2
2 2
1 2
1 2
2 1
2 1
1 2
1 2
2 1
1 2
1 1
2 2
1 2
1 2
1 2
1 2
2 1
1 2
2 1
1 2
1 2
1 2
2 2
2 2
2 1
1 2
1 1
2 1
2 2
1 2
2 1
1 2
2 1
2 1
2 2
2 1
2 1
1 1
2 1
1 2
2 1
2 1
2 1
2 2
2 1
2 2
1 2
1 2
2 2
1 1
1 2
2 1
1 1
2 1
2 1
1 2
2 2
1 1
1 1
1 1
1 1
1 2
1 1
2 2
1 1
2 1
1 2
2 1
1 1
1 2
2 1
2 2
1 1
1 1
2 1
1 2
1 2
2 2
2 1
1 2
2 2
1 2
1 2
2 2
2 1
1 2
2 2
2 2
2 2
1 1
1 1
2 2
2 1
2 2
1 1
2 2
1 1
2 1
2 2
2 1
1 2
2 1
1 2
1 1
2 1
2 1
2 2
1 2
1 1
1 2
2 2
1 1
2 1
1 2
1 2
2 2
1 2
2 1
2 2
1 2
1 1
1 2
1 2
2 2
2 1
1 2
1 2
1 1
2 2
2 1
1 1
2 1
1 1
1 2
2 2
1 1
1 2
1 1
1 1
1 1
1 2
1 1
2 2
1 2
1 1
1 2
1 2
2 1
1 2
2 2
2 2
2 2
1 2
1 2
1 1
1 2
1 2
1 2
1 1
2 1
2 2
1 2
2 1
2 1
1 2
2 1
1 2
1 1
2 2
1 2
2 1
2 2
1 2
2 2
2 2
1 2
1 2
1 1
1 1
1 2
1 1
2 2
1 2
1 1
2 2
2 1
1 2
2 1
2 2
2 1
2 1
2 1
2 2
2 1
1 2
1 2
2 1
2 1
1 1
1 1
2 1
1 2
2 2
1 1
2 2
1 1
2 1
2 2
1 2
1 2
2 2
2 1
2 1
1 1
1 1
2 1
2 2
2 1
2 2
2 1
2 1
1 1
1 1
2 2
2 2
2 1
1 1
2 2
1 1
1 2
1 2
2 1
1 2
1 1
2 2
2 1
1 2
2 2
2 1
2 1
1 1
1 1
1 1
1 2
1 2
2 1
2 2
2 1
1 1
1 1
1 1
1 2
1 1
1 2
1 2
1 1
2 1
1 1
1 1
1 2
2 1
1 2
1 1
2 2
2 2
1 1
1 2
2 1
1 2
2 1
1 2
1 2
1 1
2 1
1 1
2 2
1 2
2 1
2 2
2 2
2 1
1 1
2 2
2 1
2 2
1 2
1 1
2 2
2 1
2 2
2 2
2 1
1 1
1 2
2 1
1 2
2 2
1 1
2 1
2 1
1 1
1 2
2 2
2 1
2 1
2 2
2 2
2 1
1 2
1 1
2 1
1 2
1 2
2 1
2 1
1 2
2 2
1 2
1 2
1 2
1 2
2 1
2 2
1 2
1 2
1 1
2 1
1 2
1 2
2 1
1 2
1 1
2 1
2 1
2 1
1 2
2 2
2 1
2 1
1 1
1 2
1 1
1 2
1 1
1 1
1 2
1 1
1 2
1 2
1 1
2 2
1 2
2 2
1 2
2 2
1 1
2 2
2 2
1 1
1 2
1 2
2 2
1 2
1 2
2 2
1 1
2 2
1 2
2 2
1 1
2 1
2 1
2 2
2 2
2 2
2 2
1 2
1 1
1 1
1 2
1 1
1 1
2 1
2 2
2 2
2 1
2 1
2 2
1 2
2 1
2 1
2 1
1 1
1 2
2 2
2 1
1 2
1 2
2 1
1 1
2 1
1 2
1 1
1 1
1 1
2 2
2 2
2 1
1 1
1 2
2 2
1 2
1 1
2 1
2 2
1 2
1 1
1 1
2 2
2 2
1 1
2 2
1 2
2 1
1 1
1 1
2 1
2 1
2 1
2 2
1 2
2 2
1 1
2 2
1 2
2 2
1 2
1 2
1 1
2 2
2 2
1 2
1 1
1 1
1 2
1 1
1 1
2 1
1 2
2 2
1 2
1 1
2 1
1 2
2 2
2 1
2 2
2 2
1 1
2 1
1 2
2 2
1 2
1 1
2 1
1 1
1 2
2 1
2 2
1 1
2 2
1 1
2 2
1 1
2 1
2 1
2 1
1 1
1 2
2 1
2 2
2 1
2 1
2 1
2 2
1 1
1 1
1 1
1 2
1 2
1 2
2 1
2 2
2 1
2 1
2 1
2 2
1 2
2 1
2 1
1 1
2 1
2 1
1 2
2 1
1 2
1 1
1 1
1 1
1 1
1 2
1 2
1 2
1 1
1 1
1 1
2 1
1 2
2 1
2 2
2 2
2 1
1 2
2 1
1 1
1 2
1 2
1 2
1 1
1 2
2 2
2 2
2 2
1 1
1 1
2 1
1 2
2 2
2 2
1 2
1 1
2 2
2 1
1 1
2 2
2 2
1 2
1 2
2 1
2 1
2 1
1 1
2 2
2 1
2 2
2 2
2 2
1 1
1 2
1 2
2 1
2 1
1 2
2 1
2 1
2 1
2 1
1 2
1 1
2 1
2 1
2 1
1 1
2 2
1 2
1 1
1 2
1 1
1 1
2 2
2 2
1 2
1 2
1 1
1 2
1 1
1 1
2 1
1 1
1 2
1 1
2 2
1 1
1 2
1 2
1 1
2 2
2 1
1 2
1 2
1 1
1 1
2 1
2 1
2 2
2 2
1 2
2 2
2 2
2 2
2 1
1 2
2 2
2 2
1 1
2 1
2 1
1 2
2 1
2 2
2 1
2 1
1 2
2 2
1 2
1 2
2 2
2 1
1 1
2 1
1 1
2 1
1 2
2 2
2 1
1 2
1 1
1 2
1 2
1 2
1 2
2 1
2 1
1 2
2 1
2 2
2 1
1 2
1 2
1 2
1 2
1 2
1 1
2 1
1 2
2 2
2 2
1 2
1 1
2 1
2 1
2 2
2 1
2 1
1 1
2 1
1 2
1 2
2 1
2 2
2 2
1 1
2 1
1 2
1 1
2 1
1 1
2 2
1 1
1 2
1 1
1 1
2 2
1 1
1 2
1 1
1 2
2 1
2 2
1 2
2 2
2 2
2 1
1 2
2 2
1 1
1 1
2 2
2 2
2 1
1 1
1 1
2 1
2 1
1 1
1 2
2 1
1 1
2 2
2 2
1 1
2 2
1 1
2 1
1 2
1 2
1 2
1 2
2 1
1 1
1 1
2 1
2 1
2 2
1 2
2 2
2 1
1 2
2 2
1 2
1 2
1 1
1 2
2 1
2 2
1 2
1 2
1 1
2 2
1 2
1 1
1 1
1 1
1 2
1 1
2 2
1 2
1 2
2 1
1 1
2 1
2 1
2 2
2 2
1 1
2 2
1 1
2 1
1 1
2 1
2 1
2 1
2 1
1 2
2 2
1 1
2 2
2 1
1 1
1 1
2 1
1 2
2 2
1 2
1 2
2 1
2 1
1 1
2 2
2 2
1 1
2 2
2 2
2 2
1 2
1 1
1 2
1 2
2 2
2 1
1 1
2 1
2 2
2 2
1 2
1 2
1 2
1 2
1 1
1 1
1 2
1 1
2 1
1 2
2 1
2 2
1 2
2 2
2 1
1 1
1 2
1 2
2 1
1 1
2 1
1 1
1 1
2 1
1 2
2 1
1 2
2 2
1 2
2 2
2 1
1 1
1 1
2 1
2 2
1 2
2 2
2 2
2 1
2 1
1 2
2 1
2 1
1 2
1 1
1 1
2 2
1 2
2 2
1 1
2 2
2 1
1 2
2 2
1 1
2 2
1 2
2 2
2 2
2 1
2 1
1 1
2 2
2 2
1 2
1 1
1 2
1 1
1 2
2 2
1 2
1 1
2 1
2 2
1 2
1 2
2 2
1 1
2 1
2 2
1 1
1 1
1 1
1 1
2 2
2 2
2 2
2 1
1 1
1 2
2 2
1 1
2 1
2 1
2 1
2 1
1 2
1 2
1 1
2 1
1 1
1 1
2 1
2 1
2 1
2 1
1 1
1 2
1 1
2 1
2 2
1 2
2 2
1 2
1 1
2 1
1 2
1 1
1 2
2 1
2 1
1 2
1 1
1 1
2 2
2 2
1 1
1 1
2 1
1 1
1 2
2 1
1 1
2 2
2 1
2 1
2 1
1 2
2 1
1 1
2 2
1 2
1 2
2 1
2 2
1 1
1 1
2 1
1 2
2 2
2 1
1 1
2 2
1 1
2 2
2 1
2 1
2 2
2 1
2 1
2 2
2 2
1 1
2 2
2 2
1 1
2 2
2 2
2 2
2 1
1 1
1 1
1 2
2 1
1 1
2 2
1 2
1 2
1 1
1 2
2 1
2 1
1 2
2 1
1 1
1 1
1 1
1 2
1 2
2 1
1 2
1 1
1 1
2 2
2 1
1 1
2 1
1 1
2 2
1 2
1 2
1 2
1 1
2 2
2 1
1 1
1 2
2 2
2 2
1 1
2 1
2 1
1 1
2 2
2 1
1 1
2 1
2 2
2 1
1 1
2 1
1 1
1 2
2 1
1 1
1 2
2 2
1 1
1 2
1 2
1 2
1 2
1 1
2 1
2 2
2 1
1 2
1 1
1 1
2 1
2 1
2 1
2 1
2 2
1 2
2 1
1 1
2 2
1 2
1 2
1 1
1 1
2 1
2 1
2 1
2 2
1 1
1 2
2 2
1 1
2 1
2 1
1 2
2 2
1 1
1 1
1 1
2 2
2 2
1 1
1 1
1 1
2 1
1 1
1 2
1 1
1 2
2 2
1 1
1 1
1 1
1 2
2 2
2 2
2 2
1 2
2 1
2 2
1 2
1 1
2 2
1 1
1 1
2 2
1 1
2 1
2 2
1 1
2 1
2 1
1 2
2 2
2 1
2 1
2 2
2 1
2 2
1 1
2 2
2 1
2 1
1 1
1 2
2 2
1 2
1 2
2 1
1 1
1 2
1 2
1 1
2 1
1 2
1 1
1 2
2 2
1 2
2 2
2 1
1 2
1 1
1 2
2 2
2 2
1 2
1 2
1 1
2 1
2 1
1 2
1 1
1 2
2 2
2 1
1 2
2 1
1 1
1 1
2 2
1 2
1 2
2 1
2 2
1 2
2 2
1 1
1 1
2 1
2 2
1 2
2 1
1 1
2 1
2 2
1 1
2 1
1 2
2 2
1 2
1 2
2 2
1 1
1 1
2 2
2 1
2 1
1 2
2 2
2 1
1 2
2 1
2 2
1 2
1 2
2 1
2 2
1 2
1 1
2 1
2 2
2 2
2 1
1 2
1 2
1 1
2 2
2 1
1 2
1 1
2 2
1 2
2 2
1 1
2 1
2 1
2 1
2 2
2 2
2 2
1 2
1 1
2 1
2 2
2 1
1 1
2 2
2 1
1 2
1 2
1 1
1 1
1 2
1 1
2 1
1 1
1 2
2 2
2 1
1 1
1 2
2 2
1 1
1 2
2 1
1 2
1 2
1 2
1 2
2 2
2 2
2 2
1 2
1 2
2 2
2 2
2 1
2 1
1 1
1 2
1 2
1 1
1 2
1 2
2 1
2 1
1 2
2 1
1 1
1 2
2 1
1 2
2 2
1 2
1 2
1 1
1 2
2 2
1 1
2 2
1 2
2 1
2 1
1 1
2 1
1 2
2 2
2 1
1 1
1 2
1 1
2 1
2 1
1 2
1 1
1 1
1 1
2 1
1 2
1 2
1 2
2 1
1 1
2 2
2 1
1 2
2 2
1 1
2 1
2 1
1 2
1 2
2 2
2 2
1 2
2 2
1 1
1 1
2 1
1 1
1 1
1 1
1 2
1 1
1 2
2 2
1 2
2 1
2 2
1 2
2 2
1 2
1 1
1 1
2 2
1 2
1 2
2 1
2 1
1 1
2 2
1 2
1 1
1 1
2 2
1 2
1 1
1 1
1 2
1 1
2 2
2 1
1 2
1 1
1 2
2 1
1 1
2 1
1 1
1 1
1 1
1 1
1 1
2 2
2 1
1 1
1 1
1 2
2 2
2 1
1 1
1 2
2 1
2 1
1 1
2 2
1 2
2 2
1 2
2 2
2 2
2 2
1 2
2 2
1 1
1 2
1 1
1 2
2 2
1 1
2 2
2 1
2 2
1 2
2 1
1 2
1 2
2 1
1 1
2 2
1 2
2 2
1 1
2 2
2 2
1 2
2 2
2 1
1 2
1 1
2 2
2 2
2 2
2 2
2 1
2 1
2 2
2 2
1 2
2 2
2 1
1 1
1 2
2 2
1 1
2 1
1 2
2 1
1 1
2 1
1 2
2 1
1 2
1 1
2 2
1 1
1 2
1 2
2 2
1 1
2 2
2 2
2 1
1 2
2 1
1 2
1 1
1 2
1 2
1 1
2 2
2 2
1 1
1 2
1 1
2 2
1 2
1 2
1 1
1 1
2 1
2 2
1 1
2 2
2 1
1 2
1 2
2 2
1 1
2 2
2 1
1 2
1 1
2 1
1 1
1 1
2 2
2 1
2 1
1 1
2 1
2 2
1 2
2 1
1 1
1 1
1 2
1 1
1 2
1 1
1 2
2 2
1 2
2 1
1 2
2 2
2 1
1 2
2 1
2 2
2 1
1 1
2 1
1 1
2 1
2 1
2 2
2 1
2 2
2 2
2 2
1 1
2 1
2 2
2 1
2 2
1 1
1 1
1 2
1 2
1 2
1 1
1 1
1 2
2 2
2 1
2 1
1 1
2 1
2 1
2 1
2 1
2 1
1 1
2 1
2 1
1 1
1 1
2 1
1 1
2 2
1 1
1 2
1 2
1 1
2 2
2 2
2 2
1 2
2 1
1 2
2 2
1 1
2 1
2 1
1 2
1 1
2 2
2 1
2 1
1 1
2 1
1 1
1 1
2 1
1 2
1 2
1 2
2 2
2 2
1 2
2 2
1 2
2 2
1 2
1 2
1 1
1 2
1 2
2 2
2 1
2 2
2 1
2 2
1 2
2 1
1 2
2 1
2 2
1 2
2 2
2 2
2 1
2 2
1 2
1 1
1 2
1 2
1 1
2 1
2 2
1 2
1 2
1 2
2 1
1 1
2 1
1 1
2 2
2 2
1 1
2 2
1 1
2 2
1 1
1 1
1 2
2 2
1 1
2 1
1 2
1 1
1 2
2 1
2 1
2 1
2 1
1 2
1 1
1 2
2 2
2 2
1 1
1 2
2 1
1 2
1 2
2 2
1 2
1 1
1 2
2 2
1 2
2 1
2 1
1 1
1 2
2 2
1 2
1 2
2 2
1 2
2 1
1 2
1 2
1 1
1 2
2 2
2 1
2 1
1 1
2 1
2 1
1 2
2 1
2 1
2 1
2 2
2 1
2 2
1 1
2 1
1 2
2 2
2 2
2 1
1 2
2 1
2 2
1 2
1 1
2 2
2 2
1 2
2 2
1 2
2 2
2 1
1 1
2 1
1 1
1 2
2 2
1 2
2 2
2 1
1 1
2 2
1 1
1 1
2 1
2 1
1 1
2 2
2 2
2 2
1 2
2 2
2 2
2 1
2 2
2 2
2 1
2 2
1 1
2 1
1 2
2 2
1 2
2 2
1 2
2 1
2 2
2 1
1 2
1 2
1 1
1 2
1 2
1 1
2 1
1 1
1 2
1 2
1 2
2 2
1 2
1 2
1 2
2 1
1 2
2 1
2 1
2 1
1 2
2 2
1 1
2 1
2 2
2 1
2 2
2 2
2 1
2 2
1 2
1 1
1 1
1 2
1 1
2 2
2 1
1 1
2 1
2 1
2 2
1 2
1 2
2 2
1 2
1 2
2 2
1 1
1 1
2 2
2 2
2 1
1 2
1 2
1 1
2 1
1 2
1 2
2 1
2 1
1 2
1 1
1 2
2 1
1 2
2 2
2 1
2 1
2 1
1 2
2 1
1 2
2 1
2 2
1 2
2 2
2 2
2 2
2 2
1 2
1 2
2 2
2 1
2 2
1 2
2 1
2 1
1 1
1 2
2 1
2 1
2 1
1 1
2 1
2 2
2 1
1 2
2 2
1 1
1 1
2 1
2 1
2 1
2 2
1 1
1 2
2 1
2 2
1 2
1 2
1 2
1 2
1 2
2 2
2 2
2 1
2 1
1 1
2 1
1 2
2 1
2 2
2 2
2 1
2 2
1 2
1 1
1 1
1 1
2 2
1 2
1 1
2 1
2 2
1 2
2 1
2 1
1 2
2 1
2 2
1 2
2 1
1 2
1 1
1 1
2 1
1 2
2 1
2 1
2 2
2 2
2 2
1 1
2 2
1 2
1 2
1 1
1 1
1 1
2 2
1 2
1 1
1 2
2 1
2 2
2 2
2 2
2 1
1 2
1 2
1 1
2 1
1 1
2 2
2 1
1 1
2 1
1 1
1 1
2 2
2 2
1 2
1 1
1 1
2 2
1 2
2 2
1 2
2 1
1 1
2 1
1 1
2 1
1 2
1 1
1 1
1 1
2 2
2 1
1 2
1 2
2 1
1 1
2 1
1 2
1 1
2 2
2 1
2 2
1 2
1 1
2 1
1 2
2 1
2 1
2 1
1 2
1 2
2 1
1 2
2 1
2 2
2 2
1 1
1 2
2 2
1 1
2 2
1 1
2 1
1 1
1 1
1 2
1 2
2 1
1 1
2 2
2 2
1 2
2 2
2 1
1 1
1 2
1 1
1 1
2 2
1 2
1 1
2 1
1 1
1 2
1 1
1 2
1 1
1 1
2 1
2 1
2 1
2 2
1 2
1 2
2 1
1 2
2 1
1 1
2 1
1 2
2 2
1 1
2 1
1 2
1 2
2 1
2 1
1 1
2 1
1 1
1 1
2 1
2 2
2 1
1 2
1 1
1 2
1 2
1 1
1 2
1 2
1 1
2 1
1 2
1 1
1 2
1 1
1 1
1 1
2 2
1 1
2 1
2 1
1 2
2 1
1 1
1 2
2 1
2 2
1 1
2 2
1 2
2 1
2 2
1 1
1 2
2 2
2 1
2 1
1 2
2 2
2 2
2 2
1 2
1 2
2 2
2 2
2 1
1 1
1 1
1 1
1 1
1 2
1 1
2 2
1 2
2 1
1 1
2 2
1 2
1 2
2 2
1 2
2 1
1 2
2 2
2 1
2 2
1 1
1 2
2 1
2 1
1 1
2 1
1 1
1 1
2 2
2 1
1 2
1 2
2 2
2 1
1 2
2 1
2 1
2 2
1 2
2 1
1 1
1 1
1 1
1 2
2 2
1 1
2 2
2 1
2 2
1 1
2 2
2 2
1 1
1 1
2 1
2 2
2 1
2 1
2 1
2 1
2 1
2 1
1 2
2 1
2 2
1 1
1 2
1 1
2 1
1 2
2 2
2 2
1 1
1 1
2 1
2 2
2 1
2 2
1 1
2 1
1 2
2 1
1 1
1 2
2 1
1 1
1 1
1 2
2 2
2 1
2 1
2 2
2 1
1 1
1 2
1 2
1 1
2 1
1 1
2 1
2 1
2 1
2 2
2 1
2 2
2 1
1 1
1 2
2 2
2 1
1 1
2 1
1 1
1 2
2 1
2 1
1 1
1 2
2 1
2 1
1 2
1 2
2 1
1 1
1 2
2 2
1 1
2 2
1 1
1 2
2 2
2 1
1 1
2 1
1 2
2 2
1 1
2 1
2 1
1 1
1 1
1 1
1 2
1 2
1 1
2 2
1 2
1 1
1 1
2 2
2 1
2 2
1 2
1 1
1 2
2 1
2 2
2 2
2 1
2 1
2 1
1 1
2 1
1 2
2 1
2 2
1 1
2 2
1 1
1 1
2 1
1 2
1 1
1 2
2 1
2 2
1 1
2 1
1 1
1 1
2 1
2 2
2 1
1 1
2 1
2 1
1 1
1 1
1 1
1 2
1 1
1 1
2 1
2 2
1 1
1 1
2 2
1 2
2 2
2 2
2 1
2 1
2 1
1 2
2 1
2 2
1 1
1 2
1 1
1 1
2 2
1 2
1 1
2 2
1 1
1 1
2 2
1 1
2 1
1 1
2 2
2 1
2 2
1 2
2 2
2 1
1 1
2 1
1 1
2 1
1 1
2 2
1 2
1 2
2 2
2 2
1 2
1 1
2 2
2 2
1 1
1 2
2 1
1 2
2 1
1 2
2 1
2 2
2 1
1 1
2 2
1 1
1 1
1 1
1 2
2 2
2 2
1 2
1 2
1 2
1 1
2 1
1 1
2 1
1 1
2 1
2 2
1 1
2 2
2 2
1 1
1 2
1 1
1 1
1 1
2 1
1 2
2 1
2 1
1 1
1 1
1 1
1 1
1 1
1 2
2 2
2 1
1 2
2 2
2 1
1 1
2 1
2 1
2 1
1 1
2 2
1 2
2 2
1 1
2 1
1 2
2 1
2 1
2 2
2 1
1 1
2 2
2 1
1 2
1 1
2 2
2 1
1 2
1 2
1 1
1 2
1 2
1 1
1 2
2 2
2 2
2 2
1 2
1 2
2 2
2 1
2 2
2 2
1 1
2 2
1 1
2 1
2 1
2 1
1 2
1 1
2 2
1 1
2 1
2 1
2 1
2 2
1 2
2 1
1 1
1 2
1 2
1 1
1 1
1 2
2 2
2 2
1 1
2 1
1 1
2 1
1 2
2 2
2 2
1 1
1 2
1 1
1 2
2 1
2 2
1 1
1 1
1 1
1 1
2 2
1 1
1 2
2 1
1 1
1 2
2 2
1 2
2 2
1 2
1 2
2 1
2 1
1 1
1 2
1 2
1 2
2 1
1 1
2 2
2 1
2 1
2 1
2 1
1 1
1 2
2 2
1 2
2 1
2 2
1 1
2 1
1 2
2 1
1 1
1 1
2 1
1 1
2 2
2 1
1 2
2 2
1 1
2 2
2 1
2 1
2 2
1 1
1 2
2 1
2 2
1 2
1 1
2 1
1 2
1 1
1 1
2 2
2 2
2 1
2 1
1 1
1 2
2 2
1 1
1 1
2 2
1 1
2 1
1 2
2 2
2 1
1 2
2 2
2 2
2 2
2 1
1 2
2 1
1 2
2 1
2 1
1 1
2 1
2 1
2 2
1 2
1 2
1 2
2 2
2 2
2 2
2 1
2 2
1 2
1 2
2 2
2 1
2 1
2 2
2 2
2 1
2 2
2 2
1 1
2 1
1 2
1 2
1 1
1 2
1 1
1 1
1 1
2 1
1 1
2 2
2 1
1 1
1 1
1 1
2 1
1 1
2 2
1 1
2 2
2 1
1 2
2 2
2 2
2 2
2 2
1 2
2 1
2 1
2 1
2 2
1 1
2 1
2 1
1 2
2 1
2 2
2 1
2 2
2 1
1 1
2 1
2 1
2 1
2 1
2 2
2 1
1 1
1 2
2 2
1 1
1 2
1 1
1 1
1 1
1 1
2 1
2 2
1 2
2 1
2 1
1 1
1 2
2 2
2 1
1 2
1 1
2 2
2 2
1 2
1 1
2 2
2 1
1 1
1 2
2 1
2 2
2 1
2 1
2 2
1 2
1 2
2 2
2 2
2 2
1 2
1 1
1 1
1 2
2 2
1 1
1 2
1 2
1 1
1 2
1 1
2 2
1 2
1 1
1 1
1 2
1 2
2 1
2 1
2 2
1 2
2 1
2 2
1 2
1 2
1 2
1 1
1 1
2 2
1 2
1 2
1 1
1 1
2 2
2 2
1 1
2 1
2 2
1 1
2 1
2 1
1 1
1 1
2 2
1 1
2 2
2 2
2 1
2 2
2 1
2 1
1 1
2 2
2 2
1 1
1 2
1 1
2 1
2 1
1 2
1 2
1 1
2 1
2 1
2 1
1 1
1 1
1 1
1 2
1 1
1 2
2 2
1 2
1 1
1 1
1 2
2 1
2 2
1 2
1 1
2 1
2 1
1 1
1 1
1 2
2 2
1 2
2 1
2 1
2 2
1 1
1 1
2 1
2 1
1 2
2 2
2 1
1 2
1 2
2 2
2 1
2 1
2 1
1 2
1 1
2 1
1 1
2 1
1 1
1 2
2 1
1 1
2 2
2 1
2 2
1 1
2 1
2 2
1 2
2 2
1 2
2 1
2 2
1 2
2 1
1 1
2 2
2 1
1 2
1 2
1 1
1 1
1 1
1 2
1 1
1 2
1 2
1 1
2 2
1 2
2 2
1 2
2 2
1 1
1 1
1 1
1 1
1 2
1 1
1 2
2 1
2 1
2 1
1 2
1 2
1 1
1 1
1 2
2 2
2 1
1 2
2 1
1 2
2 2
1 2
1 1
2 2
2 1
1 2
1 1
2 1
1 1
1 2
2 2
1 1
2 2
2 2
1 2
2 2
2 2
1 1
2 2
1 1
2 1
1 2
1 2
1 2
2 1
1 2
2 1
1 2
2 1
1 2
1 1
1 1
1 2
2 2
2 1
1 1
2 1
1 1
1 1
1 1
2 1
2 2
1 2
1 1
2 1
1 1
2 2
2 2
1 2
2 1
1 2
2 1
2 1
2 1
1 2
1 2
1 1
1 2
2 2
2 1
1 1
1 2
2 2
1 1
2 2
1 2
1 2
1 2
2 1
2 1
1 2
2 1
2 2
2 2
1 1
2 1
1 1
2 1
2 1
2 1
1 2
2 1
2 1
1 1
2 1
1 1
2 1
1 2
2 1
1 2
2 1
2 2
1 1
2 2
2 1
2 1
2 1
1 2
1 2
1 1
1 1
2 1
2 1
2 2
1 2
1 2
1 1
2 2
2 1
2 2
2 2
2 2
1 2
2 2
2 2
1 1
1 2
1 1
1 1
2 2
1 2
2 1
2 1
1 1
2 2
1 1
1 2
1 2
1 1
2 2
1 2
2 2
1 2
1 2
1 2
1 1
2 2
2 2
2 2
2 1
2 1
2 1
2 1
1 2
1 1
2 2
1 1
1 2
2 2
1 1
2 2
1 1
1 2
1 2
2 2
2 2
1 1
2 1
2 1
2 2
1 2
2 1
1 1
1 1
1 2
1 2
2 2
2 2
2 2
2 2
2 2
1 1
2 2
2 1
2 2
2 2
1 1
1 1
2 2
1 1
2 1
1 1
1 1
1 1
2 1
2 2
1 2
2 1
1 1
2 1
2 2
2 2
1 1
2 1
2 1
2 2
2 2
1 1
2 1
2 1
2 1
2 2
2 2
1 2
2 2
1 2
1 2
1 2
1 1
2 2
1 2
1 2
2 1
2 2
2 2
2 2
2 1
1 2
2 1
1 1
2 2
1 1
1 1
2 2
1 1
1 1
2 1
2 1
1 2
2 1
2 2
1 2
2 2
2 2
2 2
2 1
1 1
1 2
1 2
2 2
1 1
1 2
2 2
2 1
2 2
1 2
1 2
2 1
1 1
2 1
2 1
2 2
1 2
1 2
2 1
1 1
1 2
2 2
1 1
2 1
1 2
2 1
1 1
2 1
1 1
2 1
2 1
2 2
1 2
1 2
1 2
2 2
1 2
2 2
1 1
1 1
2 1
1 1
1 1
2 2
2 1
1 2
1 2
1 2
1 1
1 2
2 2
2 1
2 2
1 2
2 1
1 2
1 2
2 2
2 2
1 2
2 1
2 1
2 2
2 1
1 2
1 2
2 2
2 1
2 2
1 2
1 1
1 2
1 2
1 1
1 2
1 1
2 1
1 2
1 1
2 2
2 1
2 1
2 2
2 1
1 2
2 2
1 1
1 2
2 1
2 1
2 1
1 1
1 1
1 1
1 1
1 1
1 1
2 2
2 2
1 2
1 2
2 1
1 1
2 2
1 2
2 1
2 1
2 2
2 2
1 2
1 2
2 2
1 1
1 2
2 2
2 2
1 2
2 2
1 1
2 1
2 2
1 2
2 2
1 2
2 2
1 1
1 1
1 1
1 1
1 1
1 2
2 1
1 1
2 1
2 2
1 2
1 2
1 1
2 2
2 2
1 1
1 1
1 1
1 2
2 2
2 2
2 1
2 1
2 2
2 2
2 2
1 2
1 1
2 2
1 1
2 2
2 2
1 2
1 1
2 1
2 1
1 2
2 2
2 1
1 2
1 2
1 2
1 2
2 2
2 1
1 2
2 2
2 1
2 2
1 2
2 1
2 1
2 1
2 2
1 2
1 1
1 2
2 2
1 2
2 2
2 2
2 2
1 2
2 1
1 2
2 2
1 1
1 1
2 1
2 2
2 1
2 2
2 1
2 2
2 1
2 2
1 1
2 2
1 1
2 1
1 1
1 2
2 1
2 2
2 1
2 1
2 2
2 1
1 1
1 1
1 1
2 1
1 2
1 2
2 2
1 2
2 2
2 2
2 2
2 2
1 1
1 2
2 2
1 2
2 1
2 1
1 1
1 1
2 1
1 1
1 1
1 2
2 2
2 1
1 2
2 2
2 2
1 1
2 1
1 1
2 2
2 1
1 1
2 2
2 1
1 2
2 1
2 1
1 1
1 2
2 2
2 1
2 2
2 2
2 2
1 1
1 1
1 1
1 2
2 2
1 1
2 2
1 2
1 1
1 1
2 2
1 1
2 1
2 1
2 2
1 2
2 1
2 2
2 1
1 2
2 2
1 2
1 1
1 2
2 2
1 2
2 1
1 2
1 2
2 1
1 2
1 1
1 1
1 2
1 2
2 1
2 2
2 1
1 1
1 1
2 2
1 2
1 2
2 2
2 1
1 2
2 2
2 2
1 2
1 1
2 1
2 2
2 2
1 2
1 2
1 1
2 1
1 2
1 2
1 2
2 2
1 1
2 2
2 2
1 1
2 1
2 1
2 2
2 1
1 2
1 1
2 2
2 1
1 1
1 2
2 1
2 1
2 2
2 2
1 2
2 1
2 2
2 1
2 2
2 1
2 1
1 1
2 1
2 1
1 2
1 1
1 1
2 2
1 2
1 2
1 1
2 1
1 1
2 1
1 1
2 1
1 1
1 2
2 2
1 2
1 1
2 1
2 1
2 2
2 2
2 1
2 2
2 1
2 1
2 2
2 2
1 2
1 1
2 1
2 1
1 2
2 2
2 2
2 2
2 1
2 1
2 2
1 1
2 1
2 1
1 1
1 1
1 2
2 2
1 2
2 1
2 2
2 1
2 1
1 2
1 1
2 1
2 1
2 2
1 1
2 1
1 2
1 2
2 1
1 2
1 1
1 1
1 2
1 1
2 1
1 2
1 1
2 1
2 2
2 2
1 2
1 1
2 1
2 2
2 1
2 1
2 1
2 2
1 2
1 1
1 1
2 1
2 1
1 2
2 1
1 1
2 2
2 2
2 2
2 2
2 2
1 2
2 1
1 2
1 1
1 2
1 2
2 1
1 1
1 2
1 2
1 1
2 2
2 2
2 2
1 2
1 1
1 1
1 1
2 2
2 1
2 2
2 1
1 1
2 2
1 1
1 2
2 1
2 1
1 2
2 2
1 2
1 2
2 1
2 2
2 2
1 1
1 2
2 2
1 1
2 1
1 2
1 2
2 1
1 2
1 2
1 2
1 1
2 2
2 1
2 2
1 1
2 2
2 1
1 2
1 1
1 2
2 1
2 1
2 1
1 1
1 2
2 1
1 1
1 1
1 2
2 1
1 2
1 1
2 2
1 2
2 1
1 1
1 1
2 1
1 1
1 2
1 1
1 2
2 2
2 2
2 2
1 1
2 2
1 1
1 1
2 2
2 1
2 1
1 2
2 2
2 2
2 2
1 1
2 2
1 1
1 2
2 2
2 2
1 2
2 2
2 2
2 1
1 2
1 2
2 2
2 1
1 1
1 1
1 2
1 2
2 1
1 2
1 2
1 2
1 1
2 1
1 2
2 1
1 1
2 1
2 2
2 2
1 2
1 2
2 1
2 1
2 2
2 2
1 1
2 1
1 2
1 1
2 2
1 2
1 2
1 2
2 2
2 1
1 1
1 1
2 1
1 1
1 2
2 2
1 1
2 2
1 1
2 1
2 2
1 2
1 2
2 2
1 1
2 2
2 2
1 2
1 2
1 2
1 1
1 1
2 2
2 2
2 2
2 1
2 1
1 1
2 1
2 2
2 1
1 1
2 2
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
2 2
1 2
2 1
1 2
1 1
1 2
2 1
2 1
1 1
1 2
2 2
2 1
2 2
2 2
2 1
1 1
2 1
2 2
1 1
1 2
2 1
2 1
2 1
2 1
2 2
1 2
1 1
2 2
2 1
1 1
1 2
2 2
2 2
1 1
2 1
2 2
1 2
2 1
2 1
2 1
1 1
2 2
1 2
2 1
1 1
2 1
1 1
2 2
2 1
1 2
2 2
1 1
1 1
1 1
1 2
1 2
2 2
2 2
2 1
2 2
1 2
2 2
1 2
2 1
2 2
2 1
2 1
2 2
2 2
1 2
1 1
1 1
1 2
1 2
2 1
1 1
2 1
1 1
1 1
2 1
1 1
2 1
2 1
2 2
1 1
1 2
1 2
1 1
1 2
1 1
1 1
1 2
2 2
1 1
2 2
2 1
1 1
2 1
2 1
2 1
1 1
2 2
2 2
2 2
2 2
2 2
2 2
1 1
1 2
2 2
1 2
1 2
1 1
2 1
1 2
2 1
2 2
1 2
2 2
2 1
1 2
1 1
2 2
1 1
1 1
2 2
2 2
2 1
1 2
2 2
1 1
1 2
2 2
1 2
2 2
1 2
1 2
1 2
1 1
1 1
2 2
2 2
1 1
2 2
2 2
1 2
1 1
2 1
1 1
2 1
2 1
2 2
2 1
2 2
1 1
1 2
1 2
2 1
1 2
2 1
1 1
2 2
2 2
1 2
1 2
1 1
1 2
1 2
2 1
1 1
1 1
1 1
1 1
1 2
1 2
1 2
1 2
1 1
1 2
2 2
2 1
1 1
2 2
2 1
2 1
1 1
1 1
2 2
2 2
2 2
1 2
1 2
1 2
2 2
1 2
1 2
1 1
2 2
2 2
1 2
2 1
2 1
1 1
2 1
1 1
1 1
2 2
1 1
2 1
2 1
2 1
1 2
2 2
1 2
1 1
2 2
2 2
2 2
2 1
2 2
1 1
2 2
2 2
2 2
2 2
2 2
2 1
1 1
1 1
1 1
1 2
1 2
1 1
1 2
2 2
1 1
2 2
1 2
2 1
2 2
1 2
1 2
2 1
2 2
2 2
2 2
2 1
1 1
1 1
2 1
2 1
2 1
2 1
2 2
2 1
2 1
1 2
2 2
2 1
1 1
2 1
1 2
1 1
2 2
1 2
1 2
2 1
1 2
1 1
2 1
2 1
1 1
2 1
2 1
1 1
1 1
2 2
1 1
1 2
1 1
1 2
2 2
2 2
1 2
2 1
1 2
1 2
2 2
1 1
1 1
1 1
1 2
1 1
2 1
1 2
1 2
1 1
1 2
2 2
2 2
1 1
2 1
2 1
1 1
1 2
2 1
1 1
2 1
2 1
1 1
2 1
2 2
1 2
1 1
1 2
1 1
1 2
2 1
2 2
1 2
1 1
2 1
2 1
1 1
2 2
2 2
2 1
1 1
1 1
1 1
1 2
2 2
1 2
1 1
1 1
2 1
1 1
1 1
2 2
2 2
2 1
2 1
1 2
1 1
2 1
1 1
2 2
2 1
2 2
1 1
1 1
1 1
2 1
2 1
2 1
2 2
2 2
1 2
1 2
2 1
2 1
1 2
2 2
2 1
1 1
2 1
1 1
2 1
1 2
1 2
2 2
1 2
1 2
2 1
2 1
2 1
1 1
2 1
2 2
1 2
1 2
1 2
2 2
2 2
2 1
1 2
1 1
2 1
1 2
1 1
1 1
2 2
1 2
1 1
1 2
2 2
2 1
2 1
2 2
1 2
2 1
1 2
1 2
2 2
2 2
2 2
2 1
1 2
2 1
1 2
1 2
1 1
1 2
2 2
2 1
2 1
1 2
1 2
1 1
1 1
2 2
1 1
2 2
2 1
2 2
1 2
2 1
1 1
1 2
1 1
1 2
1 2
1 2
1 1
1 1
1 1
2 1
1 1
2 1
1 1
1 1
2 2
1 1
2 2
2 1
1 2
2 2
1 2
2 2
2 1
1 2
1 1
2 2
1 2
2 1
1 1
1 2
2 1
2 1
2 1
1 1
2 1
2 2
2 1
2 1
2 1
2 1
1 2
1 1
2 1
2 2
2 2
2 1
2 2
1 1
1 2
1 2
1 2
2 2
2 2
1 1
1 1
1 2
2 1
1 2
2 2
1 1
2 1
2 1
2 2
1 2
1 2
2 2
1 1
2 2
1 2
2 2
2 1
1 2
1 1
2 2
1 2
2 1
2 1
1 2
1 2
1 1
1 2
1 1
2 2
1 2
2 2
1 2
1 1
2 1
1 1
1 2
1 2
2 2
2 2
2 1
2 1
1 1
1 1
1 1
2 1
1 2
1 1
1 2
2 2
1 2
2 2
2 2
2 1
2 1
1 2
2 1
2 2
1 1
1 1
1 2
1 1
1 1
1 1
2 1
2 1
2 1
1 2
1 2
1 2
1 2
1 2
2 1
2 2
1 2
2 1
2 1
1 1
2 1
2 1
2 1
2 1
2 2
2 1
2 2
1 1
2 1
1 1
1 1
2 1
2 1
2 2
2 2
1 2
2 2
2 1
2 2
1 1
1 1
2 2
2 2
2 2
2 1
1 2
1 2
1 2
2 2
1 1
2 1
2 2
1 1
1 1
2 1
2 1
2 2
1 2
1 2
2 2
1 2
2 2
2 2
2 2
1 1
1 1
1 1
1 2
1 2
1 1
2 2
1 2
1 2
2 1
2 2
1 2
2 2
1 2
1 1
2 2
2 1
2 1
1 2
1 2
1 1
2 2
2 1
1 2
1 1
2 2
1 1
1 2
2 2
1 1
2 2
1 2
2 2
2 2
2 2
2 2
2 2
2 1
1 1
1 2
2 2
1 1
2 2
2 2
2 1
2 2
1 2
1 1
1 2
1 1
2 2
1 1
1 2
1 2
2 2
2 1
1 1
1 2
1 2
1 2
2 1
1 1
1 2
2 1
1 2
2 1
1 2
2 1
2 1
1 1
1 2
1 1
1 2
1 1
1 2
2 1
1 2
2 2
2 2
2 2
1 2
1 1
1 1
2 1
1 1
2 1
2 1
2 1
2 1
1 2
2 1
1 1
2 1
2 1
1 2
1 2
1 2
2 2
1 1
2 1
2 1
1 1
2 2
2 2
2 1
1 2
2 2
2 1
2 1
2 1
2 2
2 1
1 2
1 1
2 1
1 2
1 1
2 1
1 2
2 2
2 2
2 2
2 2
2 2
1 2
2 2
1 2
1 1
2 1
2 2
1 1
1 2
1 1
1 2
1 1
1 2
2 1
2 1
1 1
1 1
1 2
1 2
1 2
2 2
2 2
2 1
1 2
1 1
1 2
1 1
1 2
2 2
2 1
2 2
2 2
1 2
2 2
2 2
2 2
1 1
2 2
1 2
2 2
1 1
1 1
1 1
1 1
2 1
1 2
1 2
2 1
2 2
1 2
1 2
1 2
1 1
2 1
1 2
2 1
1 2
1 1
2 2
1 2
2 1
2 1
2 2
1 2
1 1
2 1
2 2
1 2
1 1
2 1
2 1
1 1
2 2
2 2
2 1
1 1
1 2
2 2
2 2
2 2
1 1
2 1
2 1
2 1
2 2
1 2
1 2
1 2
1 2
2 1
1 1
1 2
2 1
2 1
1 1
1 2
1 1
1 2
2 1
2 1
1 2
1 2
2 2
2 1
1 1
1 2
1 1
1 1
1 2
1 2
1 1
2 1
2 1
1 2
2 2
2 2
2 1
1 2
2 2
1 1
2 1
2 1
2 2
1 2
2 1
1 2
1 1
2 2
1 1
2 2
1 2
2 1
1 2
1 1
1 2
1 1
1 1
1 2
2 1
1 1
1 2
2 1
2 1
2 2
2 1
2 2
1 2
2 2
1 2
1 2
1 2
1 2
2 2
1 1
1 1
2 1
1 2
1 2
2 2
2 1
1 1
1 1
2 1
2 2
1 2
1 1
2 2
1 2
2 1
1 1
2 2
2 2
1 2
1 1
2 1
1 1
2 2
1 1
2 2
2 2
2 2
1 2
2 1
1 1
1 2
2 1
2 1
2 2
2 2
1 1
1 1
2 1
2 1
2 2
2 1
2 2
1 1
2 1
1 2
1 1
2 1
1 2
1 1
1 1
1 1
1 2
1 1
2 2
1 2
1 1
2 1
2 2
2 2
1 1
1 1
2 1
1 1
1 2
2 1
2 1
2 1
1 2
2 1
1 1
1 2
1 2
1 2
2 1
1 2
1 1
1 1
2 2
2 2
2 2
1 2
1 2
1 1
1 1
1 1
1 2
2 2
1 1
2 2
2 2
1 2
1 1
2 2
1 2
1 2
2 2
2 1
1 1
1 1
2 1
2 1
2 2
1 2
1 1
1 1
1 1
1 2
1 2
1 2
1 1
2 1
1 1
2 1
2 1
2 1
2 1
2 2
2 1
2 2
1 2
1 1
2 1
1 2
2 2
2 2
1 1
2 2
1 1
2 2
1 1
2 1
1 2
1 2
2 2
1 1
2 2
1 1
1 2
2 2
2 1
2 1
1 2
2 1
1 2
1 1
1 2
1 2
2 1
2 1
1 2
1 2
2 2
1 2
1 1
2 1
2 1
1 2
1 2
2 1
2 2
2 2
2 2
2 2
1 1
1 2
1 1
1 2
2 2
2 2
2 2
1 2
1 1
2 2
1 2
1 2
2 1
2 1
1 1
2 2
2 1
2 2
1 1
2 2
2 2
2 1
1 1
1 1
1 1
1 1
2 2
1 1
2 2
2 1
2 1
2 2
2 2
2 2
1 2
2 1
2 2
1 2
2 1
2 1
1 2
2 1
1 1
2 2
1 2
2 1
1 2
2 1
1 2
1 2
2 2
1 2
1 1
1 2
2 1
1 1
1 1
1 2
2 2
1 2
2 2
1 2
1 1
2 1
2 1
2 2
2 2
1 2
1 1
1 1
1 1
1 1
1 1
1 2
1 1
1 2
2 1
1 2
2 2
2 2
2 2
2 1
1 2
1 1
2 2
1 2
2 1
2 1
2 1
2 2
2 1
2 1
1 1
1 1
1 1
2 1
1 1
2 1
2 1
1 1
2 2
2 2
2 1
2 2
2 1
2 2
2 1
1 1
2 2
1 1
2 1
2 2
2 2
2 2
2 1
1 1
2 1
1 1
2 1
1 1
2 2
1 2
2 1
1 1
1 2
2 1
1 2
2 2
2 1
1 2
1 1
2 2
1 1
2 1
2 1
2 2
1 1
1 2
1 2
1 1
1 2
1 2
1 1
2 1
2 1
2 1
1 2
1 1
2 2
1 1
2 1
1 2
2 1
2 2
2 1
1 1
2 1
2 2
2 2
1 1
1 1
2 1
2 2
2 2
2 1
1 2
2 1
2 1
1 1
2 1
1 2
2 1
1 1
1 2
1 1
2 2
2 1
1 1
2 1
2 2
1 1
2 1
2 1
1 1
1 1
2 1
2 2
1 1
1 1
2 1
2 1
2 2
2 1
1 1
2 2
1 2
2 2
1 1
2 2
2 2
1 2
2 2
2 2
1 1
1 1
2 2
2 2
1 1
2 2
2 1
1 1
2 1
1 2
1 2
2 1
2 2
1 1
2 2
2 1
1 1
2 2
1 1
1 2
2 1
2 1
2 1
1 1
2 1
2 1
1 2
2 1
2 2
1 1
1 2
1 2
2 2
1 1
1 1
2 1
2 1
1 1
1 2
2 2
1 2
2 2
2 2
2 1
2 2
2 1
2 2
2 1
1 2
2 2
1 1
1 1
2 1
1 2
1 1
2 1
1 2
1 2
2 1
2 2
1 2
2 2
2 2
1 1
1 1
2 1
1 2
2 2
2 2
2 1
2 2
1 2
1 1
2 2
1 2
1 2
2 1
1 2
1 1
2 2
2 1
2 1
1 2
1 1
1 2
1 2
1 2
1 1
1 2
1 2
2 2
1 2
1 2
1 1
1 2
1 2
2 2
1 2
2 1
2 1
2 2
1 1
2 2
2 1
1 2
2 1
2 2
2 2
2 2
1 1
1 2
2 1
2 1
1 2
2 2
2 1
1 1
1 1
2 2
2 2
1 1
1 1
2 1
2 1
1 2
2 1
1 2
1 1
1 2
1 2
1 2
2 2
2 1
2 1
2 1
2 1
1 2
2 2
2 2
1 2
2 1
2 2
1 2
1 2
2 2
1 1
1 1
2 1
1 2
2 2
1 1
1 2
2 1
2 2
1 2
1 1
1 1
2 1
1 2
2 2
2 2
1 1
2 1
2 1
2 1
1 1
2 1
2 1
2 1
2 2
1 1
1 2
2 2
1 2
2 1
2 1
1 2
1 1
2 2
2 2
1 1
2 1
1 2
2 2
2 2
2 2
1 2
1 2
1 2
1 2
2 1
2 2
1 1
1 1
1 1
1 1
1 1
1 2
2 1
2 2
2 2
1 2
1 1
1 2
2 2
1 1
2 1
2 2
2 1
2 1
2 1
1 1
2 2
1 1
1 2
2 2
2 1
2 2
2 2
2 1
2 2
1 1
1 2
2 2
2 2
2 2
2 2
2 1
2 1
2 1
1 2
2 1
2 2
2 1
2 2
1 1
1 2
2 1
1 2
1 1
2 2
1 2
2 1
1 1
1 1
1 1
2 1
1 1
1 1
1 1
2 1
1 1
2 2
2 2
1 2
1 1
1 1
2 2
2 1
2 2
2 2
1 1
2 2
1 1
2 2
1 1
2 1
2 2
1 2
1 2
2 1
2 1
1 1
2 1
2 1
2 2
2 2
2 2
2 1
1 2
1 1
1 1
2 2
2 1
1 1
1 2
2 1
2 2
1 2
1 1
2 1
1 1
1 2
2 1
2 1
1 1
2 1
2 1
2 1
1 2
1 2
1 1
1 2
1 1
1 1
1 2
1 1
2 2
1 2
1 1
2 2
1 1
2 1
1 1
1 1
2 2
1 1
2 1
1 2
2 1
1 1
1 2
1 1
1 1
1 1
1 1
1 2
1 1
2 2
2 2
2 1
2 1
1 2
1 1
2 2
2 1
1 2
1 1
1 2
1 2
1 1
2 2
2 2
1 2
1 2
1 1
1 2
1 2
1 1
2 1
2 1
2 2
1 2
2 2
1 1
1 1
2 1
1 2
1 2
2 1
1 1
1 1
2 1
1 1
1 2
2 2
1 2
1 2
1 2
2 1
2 1
1 2
1 2
2 1
2 1
2 2
2 1
1 1
2 2
1 1
1 2
2 1
2 1
2 2
1 2
1 1
1 1
2 2
2 2
2 2
2 2
1 1
1 1
2 2
2 2
2 2
1 2
2 1
1 1
2 1
1 2
1 2
2 1
1 1
2 1
1 1
1 1
2 2
1 1
2 1
1 2
1 2
1 2
2 2
1 2
2 2
1 2
1 2
1 2
2 1
1 2
1 1
1 1
2 2
2 1
2 2
2 2
2 2
1 2
2 2
1 2
1 1
1 2
2 1
2 2
2 1
2 2
1 2
1 1
1 1
2 2
1 1
1 1
2 2
1 2
1 2
1 1
2 2
2 2
1 1
2 1
2 2
2 2
2 1
1 2
2 2
2 2
1 2
1 1
2 2
1 2
2 1
1 2
2 1
1 1
2 1
2 2
2 1
2 2
2 2
1 1
1 2
2 1
1 2
1 2
2 2
1 2
2 1
2 1
2 1
2 2
1 1
2 2
2 2
2 2
2 2
1 1
1 1
1 2
1 1
1 1
1 1
2 1
2 2
1 2
2 2
2 2
1 2
1 2
2 1
2 1
2 2
2 2
1 1
2 2
1 2
2 2
2 1
1 2
1 1
2 1
2 1
1 1
2 1
2 1
1 1
2 2
2 2
1 1
1 1
1 1
1 1
2 2
1 2
2 2
1 1
1 1
1 2
2 1
1 1
2 2
2 2
2 2
2 1
1 1
2 1
1 2
1 2
2 2
2 1
2 2
2 1
2 1
1 2
1 1
2 1
1 1
1 1
1 1
1 2
1 1
1 1
1 2
2 1
2 1
2 2
2 2
1 2
1 1
2 2
1 1
1 2
2 1
1 2
2 2
2 1
1 2
2 2
1 1
2 1
2 2
1 2
1 1
1 2
2 1
1 2
2 2
2 2
1 1
1 2
1 2
1 1
2 2
1 1
1 1
1 2
2 2
1 1
1 2
1 1
2 1
1 1
2 2
1 2
2 2
2 1
1 2
2 2
1 1
1 1
1 1
1 2
1 2
1 1
2 2
1 1
1 2
2 1
2 2
1 2
2 1
1 2
2 1
2 2
1 1
2 2
2 1
2 1
2 2
2 2
1 2
2 2
1 2
2 1
1 1
1 1
1 2
1 1
1 1
1 1
1 1
2 1
1 1
2 2
2 1
1 1
1 1
1 2
1 2
2 1
2 2
1 2
1 1
1 1
1 1
1 1
2 1
2 2
2 1
1 2
1 1
1 1
1 1
1 2
1 1
1 1
1 1
1 1
1 1
1 1
2 1
2 2
1 2
1 2
1 2
1 1
1 1
1 2
2 1
2 2
1 1
1 1
2 1
2 2
1 2
2 1
2 2
1 2
2 2
1 1
1 1
1 1
2 1
2 1
1 1
1 2
1 1
1 2
2 1
1 1
1 2
1 1
2 2
1 2
2 1
1 2
2 2
2 1
2 2
2 2
1 2
1 2
1 2
2 2
2 2
2 2
1 1
1 2
1 2
2 1
2 1
2 1
2 1
1 1
2 2
1 1
1 2
1 2
2 2
1 2
2 1
2 1
1 1
1 1
1 2
1 2
1 1
2 2
2 2
1 1
1 2
1 1
2 2
1 1
2 2
2 2
2 2
2 1
2 2
2 2
1 2
2 1
1 2
2 1
2 2
2 2
2 1
2 1
1 1
2 1
1 2
2 2
2 2
1 1
1 2
2 2
2 1
2 1
1 1
1 2
2 1
1 2
2 2
1 2
1 1
1 1
2 1
1 1
1 2
2 2
2 2
2 1
1 2
1 2
2 2
1 2
2 1
2 2
2 1
2 1
2 2
1 1
1 1
2 1
2 2
2 2
2 1
2 1
1 2
1 2
2 2
2 1
1 2
2 1
1 1
1 1
2 2
1 1
2 1
1 1
2 1
2 1
2 2
1 2
1 2
1 1
2 2
2 1
1 2
2 1
2 1
1 1
2 2
2 1
1 1
1 2
1 1
2 1
1 2
1 1
1 2
2 1
1 2
2 2
2 2
1 2
2 1
1 2
2 1
1 2
1 1
2 1
1 2
2 1
1 1
2 2
1 1
2 2
1 1
1 1
2 1
1 2
1 2
2 2
1 1
1 2
2 1
1 2
1 1
1 1
2 2
1 1
2 2
1 1
2 2
2 1
1 2
2 1
2 2
2 1
1 2
2 1
2 2
2 2
1 2
2 2
1 2
1 2
2 2
1 1
1 2
2 1
1 1
2 1
1 1
2 2
1 1
1 1
2 1
1 2
2 1
2 2
2 2
2 1
1 2
2 2
2 2
2 1
2 1
2 2
1 1
2 2
2 1
2 1
1 2
2 1
1 2
1 1
2 2
1 1
2 1
2 2
2 2
1 2
2 2
1 2
2 1
1 1
1 2
2 1
2 1
1 1
2 2
1 2
2 1
1 2
1 2
1 1
1 2
2 1
1 2
1 1
1 2
1 2
1 2
2 2
1 2
1 2
2 2
2 1
1 1
2 1
1 2
1 2
1 2
2 1
1 2
2 2
2 1
1 2
2 1
1 2
2 1
1 1
1 2
1 2
1 1
2 1
2 1
2 1
1 2
2 2
2 2
1 2
1 2
2 1
2 1
1 2
2 2
1 1
1 2
1 2
1 2
1 2
1 2
2 1
2 1
2 1
2 1
1 1
1 1
1 2
1 1
1 1
1 1
2 2
1 2
2 1
1 1
2 2
1 1
1 1
1 2
2 1
1 1
2 1
1 2
1 1
2 2
1 1
1 1
2 1
1 2
1 2
1 1
2 2
1 2
1 2
1 1
2 2
1 2
1 1
1 1
2 2
1 1
1 2
1 2
1 2
1 2
2 1
2 2
2 2
2 1
2 2
1 2
1 2
1 2
1 2
1 1
1 2
2 2
2 1
2 2
1 1
2 2
1 1
1 2
2 2
2 2
1 2
2 2
2 1
2 1
2 2
1 2
2 1
2 1
2 1
2 1
2 1
1 2
1 1
2 1
2 1
1 2
2 1
2 2
1 2
1 1
1 1
1 1
2 2
2 1
2 1
1 1
2 2
1 2
1 2
2 2
2 2
1 2
2 2
2 1
1 1
1 1
1 1
2 2
2 1
1 2
2 2
1 2
1 1
2 2
2 2
1 2
2 1
2 1
2 1
1 1
2 1
2 2
2 2
1 1
1 2
1 2
2 2
1 1
2 2
2 2
2 1
2 1
2 2
2 1
1 1
2 1
1 1
1 2
2 2
2 2
1 1
2 2
2 2
1 1
1 1
1 1
2 1
2 1
2 1
2 1
2 1
2 2
1 1
2 2
1 2
2 1
2 2
1 1
2 2
1 1
1 1
1 2
2 2
2 1
2 2
1 2
2 1
2 2
1 1
2 2
1 1
1 2
2 2
2 2
2 2
2 2
2 1
2 2
1 1
1 2
2 2
1 1
1 1
2 2
2 1
1 1
2 2
2 1
2 1
2 2
2 1
2 1
1 1
2 1
2 2
1 1
1 1
2 1
1 2
1 2
1 2
1 2
2 1
1 2
2 2
1 1
2 1
2 2
1 1
2 2
1 1
1 2
1 1
2 1
2 1
1 1
1 2
1 1
1 1
1 1
1 1
2 2
2 1
2 1
2 1
1 2
2 1
2 2
1 1
1 1
1 2
2 1
1 2
2 2
2 2
1 1
2 1
2 1
2 2
2 1
1 2
1 2
2 1
2 1
2 1
2 1
2 2
1 1
2 2
1 1
1 2
1 2
1 2
2 1
2 2
1 1
2 1
2 1
1 2
1 2
1 1
1 2
2 2
1 1
1 1
1 1
2 2
2 1
2 1
2 2
2 2
1 2
2 1
1 1
1 2
1 2
1 1
1 1
1 2
1 1
1 1
2 1
1 1
1 1
2 2
1 1
1 2
1 1
1 2
2 1
2 2
1 1
2 1
2 2
1 1
2 2
2 1
2 1
1 1
1 2
2 2
1 2
2 1
2 1
1 1
2 2
2 2
1 2
1 1
1 2
1 1
1 2
1 1
2 2
2 2
2 2
1 1
2 1
2 1
1 1
1 1
2 2
2 2
1 1
2 1
2 1
1 1
1 1
1 2
1 2
1 1
1 2
1 2
1 1
1 1
1 1
1 2
1 2
2 1
2 2
2 2
2 2
1 1
2 1
1 2
1 2
2 2
2 2
1 1
1 2
1 2
1 1
1 2
1 2
2 2
2 1
1 1
1 2
1 2
2 1
1 2
1 2
1 2
2 1
1 1
1 1
2 2
1 1
1 2
1 2
1 1
1 1
1 1
1 2
1 1
1 2
1 1
1 2
2 2
2 2
1 1
2 1
2 1
2 1
2 2
2 2
2 2
1 2
1 2
1 2
2 1
2 2
2 2
1 2
1 1
1 2
2 2
2 2
2 2
2 2
1 1
2 2
2 1
1 1
1 1
2 1
2 2
2 1
1 2
1 2
2 1
2 1
1 1
2 1
2 1
2 1
2 2
2 1
1 2
2 2
1 1
1 1
1 1
2 1
1 2
1 1
2 2
1 1
2 1
1 1
2 2
2 2
1 2
2 2
1 2
1 1
2 1
1 1
1 1
2 1
2 1
2 1
2 2
1 2
2 2
2 1
2 2
1 1
2 2
2 2
1 2
2 2
2 2
2 2
1 2
1 1
2 2
1 2
2 2
2 2
2 1
1 1
1 1
2 2
1 2
1 1
1 2
1 2
1 2
1 1
2 1
1 2
1 1
1 2
2 2
2 1
2 2
1 1
1 2
1 1
2 1
2 1
1 2
1 2
2 2
1 1
1 1
2 2
1 2
2 1
1 2
2 1
1 2
1 2
2 1
1 2
2 1
2 1
1 2
1 1
2 1
1 1
2 2
1 1
1 2
2 2
2 1
1 2
1 2
2 2
1 1
1 1
1 2
2 2
2 2
1 1
1 2
2 2
1 2
2 1
2 2
2 2
1 1
1 1
2 2
1 2
1 2
2 1
2 1
1 1
1 1
2 1
1 1
2 2
1 2
2 1
2 1
2 1
2 1
1 2
2 1
1 2
2 1
2 2
1 1
1 2
1 2
1 2
2 2
1 1
1 1
1 2
2 2
2 1
2 1
2 1
2 1
1 2
2 2
1 1
1 1
1 2
2 2
1 1
2 2
2 2
1 1
2 1
1 1
1 1
2 1
1 2
2 1
1 2
1 1
2 1
1 1
1 1
2 2
1 1
2 2
2 1
2 2
1 1
2 1
2 2
2 1
2 2
2 2
2 1
1 1
1 2
1 2
2 1
1 1
2 1
1 2
2 2
1 1
2 1
2 1
2 1
2 2
1 2
1 1
2 1
2 2
2 2
1 2
2 1
1 2
2 2
2 2
2 1
2 2
2 1
1 2
2 1
2 1
2 2
2 2
1 1
1 1
1 1
2 1
1 2
2 2
1 2
1 2
1 1
2 2
2 2
2 2
2 2
2 2
2 1
1 2
2 2
1 2
2 2
2 1
2 2
1 1
1 1
2 2
1 1
1 2
2 2
2 2
1 2
1 1
1 2
2 2
1 1
1 2
1 2
2 1
1 1
1 1
2 1
2 1
1 2
1 1
1 2
2 1
2 2
2 2
2 2
1 2
2 2
2 1
2 1
1 1
1 1
1 2
1 2
1 2
1 2
2 2
1 2
2 1
1 1
1 2
1 2
2 2
2 1
2 2
2 2
1 2
1 2
2 1
2 1
2 2
2 2
1 1
1 1
2 2
1 2
2 1
1 1
2 2
1 2
2 2
2 2
2 1
1 1
2 2
1 1
2 1
1 2
1 1
2 2
1 1
2 1
1 1
1 1
2 1
1 2
1 1
1 2
2 2
2 2
2 1
2 1
1 1
1 1
2 1
2 1
2 2
2 2
2 1
2 2
2 1
2 2
1 1
1 1
2 2
1 1
1 2
1 1
1 1
1 1
2 1
2 2
1 2
2 1
2 1
2 2
1 1
1 2
1 1
2 1
1 2
2 1
2 2
1 1
2 2
1 2
1 1
2 2
2 2
2 2
2 1
1 2
2 2
1 2
2 2
2 1
2 2
1 2
1 1
1 1
2 2
1 1
2 2
2 1
1 2
2 1
2 1
2 1
1 2
2 1
2 1
1 1
2 2
1 1
2 2
2 2
2 1
2 2
1 1
2 1
2 1
1 1
2 2
2 2
1 2
1 2
1 2
2 1
1 1
1 2
1 2
1 1
2 2
2 1
2 1
2 1
1 1
2 1
1 2
2 1
2 2
2 1
2 1
1 2
2 1
1 2
1 1
1 2
2 2
1 1
1 1
2 2
1 2
2 2
2 1
2 1
2 2
2 1
2 2
2 1
1 1
1 2
1 1
1 2
1 1
1 2
1 2
1 2
1 1
1 2
1 2
1 1
1 1
2 2
2 1
1 2
2 2
2 1
1 1
2 1
1 1
2 1
1 2
2 1
1 1
2 2
2 2
1 1
2 1
1 2
1 1
2 1
2 2
1 2
2 1
2 1
1 2
1 1
2 1
2 1
1 1
2 2
2 2
2 2
2 1
2 1
2 1
1 2
1 2
2 1
2 1
1 2
2 1
1 1
2 2
1 1
2 2
1 1
2 2
2 1
1 2
1 1
1 2
1 2
2 2
2 2
1 2
2 2
1 1
1 1
1 2
1 2
2 2
2 2
1 1
1 1
1 2
1 1
1 1
2 1
2 1
2 2
2 1
2 1
1 1
2 1
2 2
2 1
2 2
2 1
1 2
2 1
1 2
2 1
1 2
2 1
1 1
2 1
2 2
2 2
2 2
2 1
1 1
2 2
1 1
1 2
2 2
2 1
2 1
2 2
2 2
1 2
1 2
2 2
1 1
2 2
2 2
1 2
2 2
2 1
2 2
2 1
1 2
1 1
1 1
1 1
2 1
1 1
1 2
2 1
1 2
2 1
2 1
1 1
2 1
2 1
1 1
1 1
1 1
2 1
1 1
1 2
1 2
2 2
2 2
1 1
1 1
1 1
1 1
2 2
2 2
1 1
2 2
1 1
2 2
2 2
2 2
2 1
1 1
1 2
1 1
1 1
2 2
2 2
1 1
1 1
2 1
2 2
2 1
1 2
1 2
1 2
1 1
2 2
2 1
2 1
1 2
2 2
2 1
2 2
2 2
2 1
2 1
2 1
2 2
1 1
1 1
1 1
2 1
2 2
2 2
2 2
2 2
1 2
1 1
1 2
1 1
1 2
2 1
1 2
1 2
1 1
1 2
1 1
2 2
1 1
1 2
1 1
2 1
1 1
1 1
1 2
2 1
2 2
2 2
1 1
1 2
2 2
1 1
1 1
2 1
2 1
1 1
2 2
1 1
2 2
1 2
2 1
2 2
2 2
1 1
1 1
1 2
1 1
2 2
2 1
1 2
1 1
2 1
1 2
2 1
2 1
1 1
1 1
1 2
1 1
2 2
1 2
2 1
2 1
1 2
2 2
2 2
2 2
1 1
2 2
2 1
2 1
1 2
2 2
2 2
1 1
2 2
2 1
2 2
1 2
1 2
2 2
2 2
1 2
1 2
2 2
2 2
1 2
2 1
1 2
2 1
2 1
1 2
1 1
2 1
1 1
1 1
2 1
2 2
1 2
1 2
2 1
1 2
2 1
1 1
2 2
2 1
1 1
2 2
2 1
1 1
1 2
2 2
1 1
2 2
1 2
1 2
2 2
2 1
2 2
2 1
1 1
1 1
1 2
2 2
2 2
2 2
2 2
1 2
2 1
1 2
2 1
1 2
1 1
2 2
1 2
2 2
1 1
1 2
2 1
2 2
2 2
2 1
1 2
1 1
1 1
2 1
2 2
2 1
1 2
2 1
1 2
2 1
2 1
2 1
1 1
2 1
2 1
2 1
1 2
2 2
2 2
1 1
1 2
1 1
1 2
1 2
2 2
1 1
1 1
2 1
1 2
1 1
1 1
1 2
1 1
2 1
2 2
1 1
2 1
1 1
2 1
1 1
2 1
2 1
1 1
2 2
2 2
2 2
2 2
2 1
1 2
1 2
1 2
2 2
1 1
2 1
2 1
1 2
1 1
2 1
2 1
2 2
2 1
1 2
2 2
1 1
1 2
2 1
1 1
2 1
2 1
1 2
1 2
2 2
2 1
1 1
1 1
1 1
2 1
2 2
2 2
2 1
1 1
1 2
2 1
1 2
2 1
1 1
1 2
1 2
2 2
1 1
1 1
2 2
2 2
2 1
1 1
2 2
2 1
2 1
2 2
2 1
1 2
2 1
2 1
1 1
2 2
1 1
2 1
1 2
1 1
1 2
2 2
2 2
1 2
2 1
1 1
1 1
1 2
2 1
1 2
2 2
1 2
1 1
1 2
2 1
2 2
2 1
2 2
2 2
2 2
2 2
1 2
1 1
1 2
1 1
2 1
1 1
2 2
2 1
2 1
1 1
1 2
1 1
1 2
1 2
2 2
1 1
1 2
1 2
2 2
1 2
1 1
1 2
1 2
1 2
1 2
1 1
1 2
1 1
2 1
1 2
2 2
2 1
2 1
2 1
2 1
2 2
1 2
1 1
2 2
2 1
1 1
1 2
1 1
2 1
1 2
1 1
2 1
1 2
1 2
2 1
2 1
1 2
1 1
2 2
2 1
2 2
1 1
1 2
2 1
2 1
2 2
2 2
1 2
1 1
1 1
1 1
1 1
1 2
2 1
2 2
1 2
1 1
2 2
1 1
1 1
1 2
2 2
1 1
1 2
2 1
2 1
2 2
1 1
2 2
2 1
2 2
1 1
1 1
1 2
2 2
1 2
2 2
1 1
1 2
1 2
1 2
2 1
2 2
2 1
1 1
2 2
2 1
1 1
1 1
1 2
2 2
2 2
1 1
2 1
1 1
1 1
1 2
2 1
1 1
1 1
1 2
1 2
1 1
1 2
2 2
1 1
1 1
1 2
1 1
2 1
2 2
2 2
1 2
1 2
1 2
1 1
1 1
2 1
2 2
2 2
1 2
1 2
1 2
2 1
1 1
2 1
1 1
2 1
1 1
2 2
1 1
1 2
1 1
1 1
2 1
2 2
2 1
1 1
2 1
2 1
1 1
1 1
2 1
1 1
2 1
1 1
1 2
2 1
2 1
1 2
1 1
2 2
2 1
1 2
1 2
1 1
2 2
1 2
1 2
2 1
2 1
2 1
2 2
1 1
2 2
1 2
2 1
1 2
1 2
2 2
2 2
1 2
2 2
1 1
2 2
1 1
1 1
1 2
1 1
1 1
1 2
1 2
2 1
2 2
1 1
1 2
1 2
1 2
1 2
1 2
2 1
2 1
1 1
1 2
1 1
2 1
1 2
2 2
2 2
2 2
2 1
1 1
1 1
2 1
1 1
2 2
1 1
1 1
1 1
2 1
1 1
2 2
1 2
2 1
2 1
1 2
1 1
1 1
2 2
2 1
2 2
2 2
1 2
1 2
2 1
1 2
2 2
2 2
2 1
1 2
1 1
1 2
1 2
1 2
2 1
2 1
1 2
1 1
2 2
2 1
1 1
2 2
2 2
2 1
2 2
2 2
2 1
2 1
1 1
1 1
1 1
1 1
1 2
2 1
1 2
1 1
1 2
1 1
1 2
2 1
1 2
1 2
1 2
1 2
2 2
1 2
1 2
1 2
2 1
1 1
1 1
2 2
1 2
1 2
1 2
2 1
1 1
2 1
2 2
2 1
2 2
1 2
1 2
2 1
1 1
2 1
1 1
2 2
2 1
1 2
1 2
2 1
2 1
1 1
2 2
2 1
1 1
2 2
1 2
2 1
2 1
1 2
2 1
1 2
2 2
1 2
2 1
2 1
1 1
2 1
1 1
2 2
1 1
2 1
2 2
2 1
2 2
1 2
2 1
2 1
2 2
1 2
1 2
2 1
2 1
2 2
1 1
1 1
2 1
1 2
1 1
2 2
2 2
2 2
2 2
1 2
1 1
2 1
1 2
2 2
1 1
2 1
2 2
2 1
1 1
2 1
1 2
2 1
2 2
2 2
2 2
2 1
1 2
1 2
1 2
2 2
1 1
1 2
1 2
2 1
2 2
1 1
1 2
2 2
2 1
1 1
2 1
2 2
2 1
1 1
2 1
1 2
2 2
2 2
2 2
2 1
1 1
1 2
1 1
1 2
2 1
2 1
2 2
2 2
2 1
1 1
2 1
1 2
1 1
2 1
2 2
1 1
2 2
2 2
2 2
1 1
2 2
1 2
1 2
1 1
2 2
2 1
1 1
2 2
2 2
1 1
1 2
1 1
2 1
2 2
2 1
2 1
2 1
1 2
1 2
2 1
2 1
1 2
2 1
1 2
2 2
2 1
2 1
1 1
1 2
2 1
1 2
2 1
1 2
1 1
1 2
1 1
2 1
2 1
1 1
1 1
1 2
2 2
2 2
2 2
1 1
1 2
1 2
2 2
2 2
1 2
1 2
1 2
2 1
2 1
1 1
2 2
1 1
1 2
1 2
2 1
1 1
2 1
2 1
1 1
2 1
2 1
2 1
2 2
1 2
1 1
2 2
1 2
1 2
2 2
2 1
2 1
1 1
1 1
2 2
2 1
2 2
2 2
2 2
2 1
2 2
1 2
2 1
1 1
1 1
2 1
2 1
2 2
2 2
2 1
1 1
2 2
2 2
1 2
2 1
2 2
1 1
1 1
1 2
1 2
2 2
1 1
1 1
1 1
1 2
1 2
1 1
1 2
2 2
1 2
2 2
2 2
1 2
1 2
1 1
1 1
1 2
1 1
2 2
2 1
1 1
2 1
1 2
2 2
2 2
1 2
2 1
2 1
2 2
1 2
2 1
1 2
1 2
1 1
2 2
2 1
1 2
2 2
2 1
2 1
1 2
2 2
1 1
1 2
2 1
2 1
2 2
1 2
1 1
1 2
1 1
1 2
2 2
1 1
1 1
2 1
2 2
1 2
2 2
1 2
2 1
2 1
2 2
2 1
1 1
1 2
1 1
2 1
2 1
1 2
2 1
2 2
2 1
1 1
1 2
2 1
2 2
2 2
2 1
2 2
1 2
2 1
2 1
2 1
1 2
1 2
2 1
1 2
1 2
1 1
2 2
2 2
2 2
2 2
2 1
2 1
1 1
2 2
1 2
2 1
2 2
1 1
1 1
2 1
1 1
2 1
2 1
1 1
1 2
2 1
1 1
1 1
2 2
1 2
2 2
1 1
1 2
1 1
2 2
1 1
1 1
2 1
2 2
2 2
1 1
2 2
1 2
1 2
1 2
1 1
1 2
2 1
1 1
2 2
2 2
1 2
1 2
1 1
1 2
2 1
1 2
2 1
2 2
1 1
1 2
2 1
2 2
1 1
2 2
1 1
1 2
2 1
1 1
1 2
1 1
1 2
1 2
2 2
1 2
2 2
2 1
1 1
2 1
1 2
2 2
2 2
1 1
2 2
1 2
1 1
1 1
1 2
1 1
2 1
2 2
1 2
2 1
1 1
2 1
2 1
1 2
1 2
2 1
2 1
2 2
1 1
1 1
2 1
1 2
1 1
2 1
1 2
1 2
1 2
1 1
1 1
1 2
2 2
1 1
1 1
2 2
2 1
2 1
2 2
2 2
2 2
2 2
2 1
2 1
2 2
2 1
2 2
1 2
2 2
2 1
2 2
1 2
2 1
1 1
2 2
1 1
1 1
1 1
2 2
1 2
1 1
2 1
2 1
2 1
1 1
2 2
2 1
1 1
1 1
1 2
1 2
1 1
1 2
1 2
2 2
2 1
2 2
2 1
1 2
2 2
2 2
2 2
2 2
2 1
1 1
1 1
2 1
1 2
1 2
2 1
2 2
1 2
2 2
1 2
2 2
1 2
2 1
1 2
1 2
1 2
2 2
1 1
1 2
2 1
1 1
2 2
2 2
1 1
1 2
1 1
2 2
2 2
2 1
1 1
1 2
2 2
2 1
2 1
1 1
2 1
1 2
1 2
1 2
1 2
1 2
1 1
2 2
2 2
2 2
1 1
1 1
1 2
2 2
1 2
1 1
2 1
2 1
2 1
1 1
2 2
1 2
2 2
1 2
1 2
2 1
1 2
2 2
2 2
2 1
1 2
1 1
1 2
2 1
1 1
2 2
1 1
2 1
1 2
1 2
1 1
2 2
1 2
1 1
2 1
2 2
1 2
2 1
1 2
1 2
1 2
1 2
2 2
1 1
2 1
1 2
1 2
1 2
2 1
1 2
1 2
1 1
1 2
1 1
1 1
1 2
2 2
1 2
2 2
1 2
2 2
2 2
2 1
1 1
1 1
2 1
2 2
1 2
2 2
1 2
2 1
2 1
2 2
2 2
1 2
1 1
2 2
2 1
1 1
1 1
2 1
1 1
1 2
2 2
2 2
1 1
2 2
1 1
2 1
1 1
1 1
2 2
2 1
2 2
1 2
2 1
1 1
2 2
1 2
2 2
2 1
2 1
1 2
1 1
1 2
2 2
2 1
2 1
1 1
2 2
1 1
2 1
2 1
1 2
1 2
2 1
2 1
1 2
2 1
2 2
2 2
1 2
2 1
1 1
1 1
1 2
2 1
2 1
1 1
1 1
2 1
1 1
1 2
2 1
1 2
1 2
2 1
1 2
2 1
2 1
1 2
1 1
2 2
1 2
2 2
1 2
1 1
1 2
1 2
1 2
1 2
2 1
1 1
1 2
2 2
2 1
2 2
2 1
2 1
1 1
2 1
2 2
1 1
1 2
1 2
1 1
2 1
1 1
2 1
2 1
2 1
1 1
1 2
1 2
2 1
1 1
2 1
1 2
1 1
1 1
2 1
2 2
2 2
2 1
2 1
1 1
1 1
1 1
1 1
2 2
2 1
1 2
1 1
1 1
1 1
1 2
2 2
1 2
2 1
2 1
1 1
2 1
2 1
2 1
2 2
1 2
1 2
1 2
2 1
1 2
1 2
2 1
1 1
2 1
1 2
1 2
2 1
2 2
1 1
2 1
1 2
1 2
2 1
1 2
2 2
2 1
2 2
2 2
1 2
2 2
1 2
1 2
1 2
2 1
1 2
1 1
1 1
2 2
1 2
2 1
1 1
1 1
1 2
1 1
1 2
1 2
1 2
1 2
2 1
1 2
2 2
1 1
1 2
2 1
1 2
1 2
1 2
2 2
2 2
1 2
2 2
2 1
1 1
2 1
1 1
1 1
2 2
1 2
1 1
1 1
2 1
2 2
2 1
1 1
1 2
1 1
1 2
1 1
2 2
1 2
2 2
1 1
1 2
1 2
1 2
1 1
2 2
1 2
1 2
1 2
1 1
2 2
1 1
1 2
1 2
2 1
2 2
1 2
2 1
2 2
1 1
1 1
1 2
1 2
2 1
1 1
1 1
2 2
1 1
2 2
1 2
1 2
2 2
1 1
2 1
1 1
1 1
2 1
1 1
1 2
2 1
2 1
1 1
2 1
1 1
2 1
1 1
1 2
2 2
1 1
1 2
1 1
1 1
2 1
1 2
2 1
1 1
1 2
2 1
2 1
1 1
1 2
2 1
1 2
1 1
1 2
1 1
1 1
2 2
2 2
1 1
2 1
1 1
2 2
2 2
2 1
2 1
2 2
2 2
2 1
1 1
2 2
1 1
1 1
1 1
1 1
2 1
1 2
2 2
1 2
1 2
2 2
1 2
2 2
2 2
2 1
2 2
2 2
1 1
1 1
2 2
1 2
1 2
1 1
1 1
1 1
1 1
1 2
1 2
1 2
2 2
2 1
2 1
1 1
2 1
1 2
2 2
1 2
2 1
1 1
2 2
1 1
1 1
2 1
1 1
1 2
1 1
2 1
1 1
1 1
2 1
2 2
2 2
2 1
1 2
2 2
2 2
2 1
2 1
2 1
1 2
2 2
1 1
2 1
1 2
2 1
2 2
2 1
2 2
2 2
1 2
1 2
2 1
2 1
2 2
1 2
1 1
2 1
1 1
2 1
2 2
1 1
2 2
1 2
2 2
2 2
1 2
1 1
1 1
2 1
1 2
2 2
2 2
1 1
1 1
1 1
1 2
1 1
1 1
2 2
1 2
2 1
2 1
1 2
1 2
2 2
1 1
1 2
1 2
1 1
2 1
2 1
2 2
2 1
1 1
1 2
1 1
1 2
2 2
2 2
2 2
2 2
1 1
1 1
1 1
1 2
2 2
2 1
2 2
1 1
1 2
1 2
1 2
2 2
1 2
2 1
2 2
2 2
1 1
2 1
2 1
2 1
1 2
2 1
1 1
2 1
1 2
1 1
2 1
1 1
2 2
2 1
1 2
2 1
2 2
2 2
2 2
2 1
2 2
1 2
1 2
1 1
1 2
1 2
2 1
2 1
2 1
2 1
2 1
1 2
1 1
1 2
1 1
1 1
1 2
1 2
1 2
2 1
2 1
1 2
2 1
1 2
1 1
2 1
2 2
2 1
1 2
1 2
2 2
1 2
2 1
2 1
2 1
1 2
2 2
2 1
2 2
2 1
2 2
2 1
1 2
1 2
2 2
2 1
1 2
1 2
1 2
2 2
2 2
1 1
2 2
2 2
2 1
1 2
2 1
1 2
2 1
1 1
2 1
1 1
2 1
1 2
1 1
2 2
2 2
2 2
1 1
2 2
1 1
2 1
2 2
1 1
1 2
2 2
1 2
1 2
2 2
2 2
2 1
1 2
2 1
1 2
1 1
2 1
2 2
2 2
1 1
2 2
1 2
1 2
1 2
2 2
1 1
2 2
2 1
2 2
2 2
1 1
1 1
2 2
2 1
1 2
2 2
1 2
1 2
1 1
1 2
1 1
2 1
2 1
2 1
2 2
2 1
1 1
2 2
2 1
1 1
2 2
1 2
2 2
1 1
2 2
1 1
1 1
2 2
2 2
2 2
1 1
2 2
2 1
1 2
2 2
1 1
2 1
2 2
1 1
2 1
1 2
1 2
2 1
2 2
2 1
2 1
1 1
2 2
1 2
2 1
1 1
1 1
2 2
2 1
2 1
2 1
1 2
1 2
2 1
1 1
1 2
1 2
1 2
1 2
2 1
2 2
2 2
2 2
1 1
1 2
2 1
1 1
2 1
2 2
1 1
1 2
2 1
1 2
2 2
2 2
2 1
1 2
1 2
2 2
2 2
1 2
2 2
1 2
1 1
2 2
1 2
2 2
2 1
1 2
1 1
1 2
1 2
2 1
2 2
1 2
1 1
1 2
2 2
2 2
1 1
1 1
2 2
1 1
2 2
2 1
1 2
2 1
2 2
1 2
1 1
2 2
1 2
1 1
2 1
1 1
2 2
2 2
2 2
1 1
2 2
1 1
1 2
2 1
2 1
1 1
1 1
1 1
1 2
1 2
2 1
1 2
1 1
1 2
2 2
1 2
1 1
1 2
2 2
2 2
1 1
1 1
1 2
1 1
1 2
1 2
2 2
1 2
2 1
1 1
1 2
2 1
2 2
1 2
2 2
1 1
1 1
1 2
2 1
2 2
2 2
1 2
2 1
1 2
2 2
1 2
2 1
1 1
1 1
1 2
1 1
1 1
1 2
1 1
2 2
2 2
1 1
2 2
2 2
2 1
1 2
2 2
1 2
2 1
2 2
1 2
1 2
1 1
2 1
2 2
1 1
2 1
2 2
2 2
2 2
2 1
2 2
1 1
2 1
2 2
2 2
1 1
2 1
2 1
2 1
2 2
2 2
1 2
1 2
2 1
1 1
1 1
1 2
2 1
1 1
1 2
2 1
1 1
1 2
2 1
1 2
1 1
1 2
1 1
1 1
1 2
1 2
2 1
2 1
1 1
1 1
1 2
2 1
1 2
1 2
2 1
2 2
1 1
2 2
1 2
1 1
1 1
1 2
2 2
2 1
1 2
2 1
2 1
1 1
1 1
2 2
1 2
2 2
2 2
1 1
1 1
1 2
1 2
1 2
1 2
2 2
1 2
1 2
2 1
2 2
2 2
1 2
2 1
2 1
1 1
1 1
1 1
2 2
2 2
1 2
2 2
1 1
2 1
1 2
1 1
2 1
1 1
1 2
2 2
1 2
2 1
1 1
1 2
1 1
2 2
2 2
1 2
2 1
2 2
1 2
1 1
2 1
1 1
1 1
1 2
2 2
2 2
2 2
2 1
2 2
2 2
1 2
2 1
2 1
2 1
1 2
1 1
1 2
2 2
1 1
1 2
1 2
2 1
1 1
1 1
2 1
2 2
1 2
1 1
1 2
1 1
1 1
2 2
1 2
2 1
2 1
1 2
1 1
2 1
1 1
1 1
1 1
2 2
1 2
1 2
2 2
2 2
2 2
2 1
2 2
2 1
1 2
2 1
2 1
2 2
2 2
2 2
2 1
1 2
1 2
1 1
2 2
1 2
1 1
2 2
1 1
1 1
1 1
2 2
1 1
1 1
2 2
2 1
1 2
1 2
1 1
1 1
2 1
2 1
2 1
1 1
1 2
1 2
2 2
2 1
1 1
2 2
2 2
2 2
2 1
2 1
1 2
2 1
1 1
2 2
1 2
1 1
1 1
1 2
2 2
2 2
2 1
2 2
2 2
2 1
2 2
1 2
2 1
2 2
1 2
1 2
1 1
1 1
1 1
1 1
2 1
2 1
2 2
2 1
1 2
1 1
2 2
2 2
2 2
1 2
2 2
2 1
1 1
1 2
2 1
2 1
1 1
1 1
2 1
1 2
2 2
1 1
2 2
2 1
1 1
1 2
2 2
1 1
2 2
1 2
2 2
1 1
2 2
2 2
1 1
2 2
1 1
1 1
2 1
2 2
2 1
2 2
1 2
2 1
1 2
1 2
2 2
1 2
2 1
1 2
2 1
2 1
2 2
2 1
1 2
2 1
1 2
2 2
1 2
2 2
2 2
2 2
2 2
2 1
1 1
2 1
1 1
1 2
1 1
2 2
2 2
1 1
2 1
1 2
1 2
2 2
1 1
2 1
1 2
1 1
2 2
2 1
1 1
1 2
2 1
2 2
2 1
1 1
2 2
2 2
1 1
2 1
1 1
1 2
1 2
2 2
1 1
1 2
1 1
2 1
1 2
1 1
2 1
1 2
2 1
1 2
1 2
1 1
1 1
1 2
2 1
1 1
1 2
2 2
2 2
2 1
1 1
1 1
2 1
1 2
1 1
1 2
1 1
1 1
2 1
2 1
2 1
2 1
2 1
1 2
2 2
1 2
2 2
1 2
2 1
1 1
2 1
1 1
1 2
2 1
1 1
2 1
1 2
2 1
1 1
1 1
1 1
1 1
1 2
1 1
1 2
1 2
2 1
1 2
2 1
2 2
1 1
2 1
1 2
2 2
2 2
1 1
1 2
2 2
1 2
1 2
2 1
2 2
1 1
2 1
2 1
2 2
2 2
1 2
2 1
2 1
1 2
2 1
2 1
2 2
1 1
1 2
2 2
1 1
2 1
2 2
1 1
2 1
2 1
1 1
2 2
1 1
1 2
1 2
2 1
1 1
1 1
2 2
1 2
2 2
2 1
2 1
1 2
1 1
2 2
2 2
2 1
1 2
1 2
2 1
2 2
1 2
1 2
1 2
2 1
2 1
1 2
1 2
2 2
2 2
1 1
2 2
1 1
1 2
2 1
2 1
2 1
1 1
2 1
1 2
1 1
1 2
2 1
1 2
2 1
1 2
2 1
2 1
1 1
1 2
1 2
1 2
2 1
1 1
1 2
2 1
2 1
2 2
1 2
1 1
2 2
2 2
2 1
2 2
1 1
2 1
2 1
2 1
1 1
1 1
2 1
2 1
1 1
2 1
2 1
1 1
1 1
2 1
1 2
1 1
1 1
1 2
1 2
1 1
1 2
1 1
1 2
1 1
1 2
1 1
2 1
1 1
1 1
2 2
1 2
1 1
1 2
2 1
1 1
2 1
1 2
2 1
2 1
2 1
1 2
2 1
2 2
2 2
2 1
2 2
1 1
2 2
2 2
1 1
1 2
1 2
2 1
1 2
1 2
1 2
1 2
1 2
2 1
2 2
2 1
2 2
2 1
2 1
2 2
1 1
2 2
1 1
1 2
1 1
1 1
2 1
1 1
2 1
1 2
1 1
2 1
1 1
1 2
2 2
2 1
2 2
2 1
2 2
2 1
2 2
1 2
2 2
1 1
2 2
2 2
2 1
2 1
2 1
2 2
2 2
1 2
1 2
1 1
2 1
2 2
2 2
2 2
2 1
2 2
1 1
1 1
2 1
2 1
2 2
1 2
2 2
2 2
2 2
1 2
2 1
1 2
1 1
2 2
1 2
1 1
2 2
1 2
1 2
2 1
2 2
1 1
1 1
2 2
1 1
2 1
2 2
1 2
2 2
2 2
2 2
1 2
2 2
2 1
1 2
1 1
1 1
2 2
1 2
1 2
1 1
1 1
1 2
2 1
2 2
1 2
2 2
1 2
2 2
1 2
2 2
2 2
2 1
2 1
2 2
2 2
2 1
1 2
2 2
1 1
2 2
2 1
2 2
1 2
1 1
1 2
2 1
2 2
2 1
1 2
1 1
1 1
1 1
2 1
1 1
2 2
1 2
2 2
2 1
1 2
2 1
1 1
2 2
1 2
1 2
1 2
1 1
1 2
2 2
1 2
1 1
2 2
1 1
2 2
1 1
1 2
1 2
2 1
2 2
1 2
2 2
1 2
2 1
2 2
2 2
2 1
1 1
1 1
2 2
2 2
2 1
1 1
1 1
2 2
2 2
2 1
1 2
1 1
1 2
2 1
2 1
1 1
2 1
1 2
2 2
1 1
1 1
2 2
1 2
2 1
2 1
2 1
1 2
2 1
2 2
1 1
1 1
1 1
2 1
1 2
2 1
2 2
1 1
1 1
1 1
2 2
1 2
1 2
2 2
2 2
2 2
2 2
2 1
2 1
2 1
1 1
1 2
2 2
1 2
2 1
2 2
2 2
2 2
1 1
2 1
1 1
2 1
2 2
1 1
1 1
2 1
2 1
1 2
2 2
2 1
2 1
2 1
2 2
1 2
1 1
2 2
2 1
2 2
2 1
1 2
2 2
1 2
2 1
1 2
1 2
2 2
2 2
1 1
1 1
1 1
2 1
1 1
1 1
2 1
2 1
1 1
1 1
2 1
2 2
1 1
1 2
1 1
2 1
1 1
1 1
2 1
2 1
1 1
2 1
1 2
1 2
1 1
1 1
2 2
1 1
1 2
1 1
2 2
2 2
1 1
1 1
1 1
1 1
1 2
1 2
2 2
1 2
1 2
2 2
1 1
2 1
1 1
1 2
2 1
1 2
2 1
1 1
1 1
2 2
1 2
1 1
1 2
1 1
1 1
1 2
1 1
1 1
1 2
2 2
1 1
1 2
1 2
1 2
1 2
2 1
1 1
2 1
1 2
1 1
1 2
2 1
2 2
1 1
1 1
1 1
1 1
2 1
1 2
1 2
1 2
2 1
2 2
2 2
2 2
2 2
1 2
2 2
1 1
2 2
1 1
2 2
1 1
2 1
2 2
1 2
1 2
2 2
1 1
2 2
2 1
1 1
1 2
2 2
2 2
1 2
2 1
1 1
1 1
1 2
2 2
2 1
2 1
1 1
1 2
1 1
1 2
1 1
2 1
1 1
1 2
2 1
1 2
1 2
1 2
2 1
2 1
2 1
1 2
2 1
1 1
1 1
1 1
1 1
2 1
1 1
1 1
2 1
2 1
1 1
2 2
2 2
1 1
1 1
1 2
1 1
2 1
2 1
1 2
1 1
1 1
2 1
1 1
2 2
1 1
2 2
1 1
2 2
2 2
1 1
1 1
2 1
1 1
2 1
1 1
2 1
1 2
2 2
2 1
2 2
2 2
1 1
1 2
1 2
2 1
1 1
1 1
1 2
1 2
2 2
1 1
1 2
2 2
2 2
1 2
2 2
1 2
2 1
1 2
1 2
2 1
1 1
1 2
2 2
1 2
2 1
2 2
1 2
2 1
2 1
1 1
2 2
1 1
1 2
2 1
2 2
2 2
1 1
1 1
1 1
2 2
1 2
2 2
1 2
2 1
2 1
1 1
1 2
2 2
1 1
1 2
2 1
2 2
2 1
1 1
2 2
2 1
2 1
2 1
1 2
1 2
2 2
1 1
1 2
2 2
1 2
1 2
1 2
2 2
1 2
1 2
2 2
2 1
1 2
2 2
2 1
1 2
2 1
2 1
1 1
1 1
2 2
1 2
2 2
1 1
1 1
2 1
2 1
2 2
2 2
2 2
1 1
1 1
2 1
1 2
2 2
2 1
2 2
1 1
1 1
2 2
1 1
1 1
2 2
2 2
2 1
2 1
2 2
1 2
2 2
1 1
2 1
2 1
2 2
2 2
2 2
1 2
1 1
2 2
1 1
1 1
1 2
1 2
1 2
1 2
2 2
2 1
1 2
2 1
2 2
2 2
2 2
2 1
2 2
2 1
2 2
1 1
2 2
2 2
1 1
2 1
1 2
2 1
2 2
2 2
1 1
2 2
1 2
1 1
2 2
2 2
2 2
2 2
2 2
2 2
2 2
1 2
2 1
1 1
2 1
2 1
2 2
2 1
2 2
1 1
1 2
1 1
1 1
2 1
1 2
1 2
1 2
1 1
2 2
1 2
2 2
1 1
1 1
2 1
1 2
1 2
1 2
2 2
2 1
2 1
1 2
1 2
2 1
2 1
1 1
1 2
1 1
2 2
1 2
2 2
1 2
1 2
1 2
2 1
2 2
1 1
1 1
1 2
2 1
2 1
2 1
2 2
1 2
2 1
1 1
2 2
2 2
1 1
1 1
1 2
1 1
1 2
2 1
1 2
2 1
2 1
1 1
1 2
1 1
1 1
1 2
1 1
2 1
1 2
1 2
2 2
1 1
1 2
1 2
2 1
2 1
2 2
1 1
2 2
2 2
2 1
2 2
1 1
2 2
2 1
1 1
2 2
1 2
2 1
2 1
2 1
1 1
2 2
2 1
2 1
2 1
2 1
1 1
2 1
1 2
1 2
2 1
2 2
2 2
1 2
2 2
1 2
2 2
1 2
1 2
2 2
2 1
2 1
1 2
1 2
1 2
1 2
2 1
2 2
1 2
2 1
2 2
2 2
2 2
2 2
2 2
2 1
1 1
2 1
2 2
2 1
2 2
1 1
1 1
1 2
1 1
1 2
2 2
2 1
2 1
1 2
2 1
2 1
2 2
1 1
2 1
1 2
2 2
2 1
2 2
1 2
1 2
2 2
2 1
2 1
1 2
1 1
1 2
2 1
1 1
2 1
2 2
2 2
1 1
2 2
2 1
1 2
1 2
2 2
1 1
1 2
1 1
2 1
1 2
1 1
2 1
1 1
1 1
1 1
2 2
1 2
1 2
1 2
1 1
2 1
2 2
1 2
2 2
2 1
1 2
1 2
1 2
2 2
1 1
2 1
2 1
1 2
1 2
1 2
1 1
1 1
1 1
2 2
2 2
2 2
1 2
1 2
1 2
1 1
1 1
2 2
2 1
1 2
2 2
2 2
1 1
1 2
1 1
1 1
2 2
2 2
1 1
2 2
1 2
2 1
2 2
1 1
1 1
2 1
2 2
2 2
1 2
1 2
2 1
2 1
1 1
1 2
1 1
2 1
1 2
2 2
1 1
1 2
1 1
1 1
1 2
1 2
2 2
2 2
2 2
1 2
1 1
2 1
1 1
2 2
2 1
1 1
1 2
2 2
1 1
1 2
1 1
2 1
2 2
2 1
1 1
2 2
2 1
1 2
1 2
1 2
1 1
1 1
2 2
2 1
2 1
2 1
2 2
1 1
1 2
1 2
2 2
2 1
2 1
1 2
2 2
1 2
1 2
2 1
2 2
2 1
1 1
1 1
1 2
1 2
1 1
1 1
2 1
1 2
1 2
2 2
1 2
1 2
2 1
1 2
1 2
1 1
1 1
2 1
2 1
1 2
1 2
1 1
1 1
2 2
1 1
2 1
2 2
2 1
2 1
2 2
1 1
1 1
1 2
2 2
1 1
2 2
1 2
1 2
1 1
1 1
1 2
1 1
1 1
2 2
1 2
2 1
1 1
1 1
2 2
2 2
2 1
1 1
2 2
1 2
2 1
1 1
2 1
2 2
1 1
1 2
1 1
1 1
2 2
1 1
2 2
1 2
1 1
1 1
1 2
1 2
1 2
1 1
2 1
1 2
1 2
2 1
2 1
2 1
2 1
1 2
1 2
2 1
1 1
2 1
1 2
2 2
2 1
1 1
1 1
2 2
2 1
1 2
2 1
2 1
2 1
2 1
2 2
2 1
1 2
1 1
2 1
1 2
2 2
2 2
1 2
2 2
1 1
2 1
1 2
1 2
2 1
2 1
1 1
2 2
2 1
2 2
2 2
2 1
2 2
1 2
2 1
1 1
1 2
1 2
2 1
1 1
1 1
2 2
2 1
1 1
1 1
1 1
2 1
2 2
1 1
1 1
1 2
2 2
2 2
2 1
2 2
1 1
2 2
2 1
1 1
2 2
1 2
2 1
1 1
2 1
1 1
2 2
2 1
2 2
1 2
2 2
2 1
2 2
1 2
1 2
2 1
1 1
1 1
2 1
1 2
1 2
2 2
2 1
1 1
2 2
1 2
2 2
1 2
1 1
2 1
1 2
2 1
2 2
2 1
2 1
2 2
1 2
1 1
1 2
2 1
2 1
1 1
1 2
1 1
2 1
2 2
1 1
2 1
2 2
2 1
1 2
2 1
1 1
2 1
2 1
2 2
1 1
2 1
2 2
1 2
2 1
2 2
2 1
2 2
2 1
2 2
2 2
2 2
2 1
1 1
2 1
2 1
2 1
1 1
2 1
1 1
2 1
2 2
2 1
1 1
2 2
2 2
1 2
2 2
1 1
1 2
1 2
1 1
1 2
2 2
2 2
1 2
2 2
1 1
2 2
2 1
1 1
1 1
2 2
2 2
1 2
1 1
2 1
1 1
2 1
1 1
2 2
2 2
2 1
1 1
1 1
2 1
2 1
2 2
1 2
2 2
2 2
2 1
1 1
1 1
2 1
1 1
1 1
2 2
2 1
2 1
2 1
2 2
2 1
1 2
2 1
1 1
2 1
1 2
2 2
1 2
1 1
2 1
1 1
1 1
1 1
1 2
1 2
2 2
2 2
1 1
2 1
1 2
1 1
2 2
2 1
1 2
2 2
1 2
1 1
2 2
2 1
1 2
1 1
2 2
2 1
2 1
1 1
2 2
2 1
1 1
2 2
2 1
1 1
1 1
2 2
1 2
2 1
2 2
1 2
1 2
2 2
2 2
1 2
2 2
1 2
1 1
2 1
1 1
1 1
2 2
2 1
2 2
1 2
1 1
1 1
2 2
2 1
1 2
2 1
2 1
1 1
2 1
2 1
2 1
2 2
1 1
1 1
1 2
1 1
1 2
1 1
2 1
2 1
2 2
1 1
2 1
2 2
2 1
2 1
1 1
2 1
2 1
1 1
1 1
1 2
1 2
2 2
2 2
2 2
2 1
1 1
1 2
1 2
2 1
1 2
2 2
2 1
1 1
1 2
2 2
1 2
2 1
1 2
1 2
1 1
2 1
1 1
2 2
2 1
2 2
2 1
2 2
1 2
1 1
1 2
2 2
2 2
2 2
1 1
2 1
2 1
2 1
1 2
1 2
2 1
1 1
2 2
1 2
1 2
2 1
1 2
1 1
1 2
1 1
1 1
1 2
1 1
1 1
2 2
2 2
2 1
2 2
2 2
1 2
2 2
2 1
2 2
2 2
2 2
2 1
1 1
1 1
2 1
2 2
1 2
1 2
1 2
2 1
2 2
1 1
2 1
2 1
2 1
2 1
2 1
2 2
2 1
2 2
2 1
1 2
1 2
2 2
2 2
2 2
2 2
2 2
2 1
1 2
2 2
2 2
1 2
2 1
1 2
2 2
2 2
2 2
2 2
1 2
2 2
2 2
1 2
1 2
1 1
2 1
2 2
2 1
1 1
2 1
2 2
1 2
1 1
1 2
1 1
2 2
2 1
1 1
2 1
1 2
2 2
2 1
1 2
1 2
1 1
2 2
1 1
2 2
1 1
1 2
1 2
2 1
2 2
2 2
1 2
2 2
1 2
2 1
2 1
2 1
1 1
1 2
2 1
1 1
2 1
2 1
1 1
1 1
1 2
1 1
1 1
2 1
2 1
1 2
1 1
1 1
2 1
2 2
2 2
1 1
2 2
1 2
1 1
2 2
2 2
2 1
1 2
2 2
2 1
2 2
2 2
1 2
2 1
2 2
2 2
2 1
2 2
1 2
1 1
1 2
1 2
2 1
2 2
1 1
1 1
1 2
2 2
1 2
2 2
1 2
2 1
2 2
2 2
1 1
1 2
2 1
2 1
2 1
2 1
2 1
1 1
2 1
2 2
2 2
1 2
2 2
1 2
2 2
2 1
1 2
1 1
2 2
2 1
1 2
2 2
1 2
2 2
1 1
1 1
1 2
2 1
2 1
2 1
2 2
1 2
2 2
1 2
1 2
1 1
2 2
2 1
2 1
2 2
2 2
1 2
1 1
2 2
1 1
2 2
1 2
1 2
2 2
2 1
2 2
1 2
1 1
1 2
1 1
2 2
1 1
1 1
1 1
2 2
2 2
1 1
2 1
2 1
2 2
2 2
2 2
2 1
2 1
2 1
2 1
2 1
1 2
1 2
1 1
2 2
2 2
1 1
2 2
1 1
2 1
1 1
1 1
2 2
1 2
1 1
1 1
1 1
1 1
2 2
2 1
2 2
1 2
2 2
2 2
2 1
2 1
2 2
2 2
2 2
1 2
1 1
1 1
2 2
1 2
1 1
2 2
1 2
1 1
1 1
1 2
1 1
1 1
2 1
1 2
1 1
2 2
1 1
1 2
1 2
1 1
2 2
1 2
1 2
2 1
2 1
1 2
1 1
2 2
1 2
1 1
1 1
1 2
2 2
1 2
2 2
2 2
1 2
1 1
1 1
2 1
2 1
1 1
1 1
2 1
2 2
1 2
1 1
2 2
2 2
2 1
1 1
2 1
1 2
1 2
1 2
1 2
2 2
2 1
1 1
2 1
2 2
1 2
2 2
2 1
1 1
1 1
2 2
1 1
2 2
2 1
1 1
2 1
1 1
1 2
2 1
1 2
1 1
2 1
2 1
1 1
1 2
1 1
2 1
2 2
2 2
2 1
2 2
1 1
2 2
1 1
2 1
2 1
2 1
1 2
2 2
2 1
2 1
1 1
2 1
2 1
2 1
1 1
1 1
1 2
2 2
2 1
2 1
1 2
1 1
2 1
1 2
2 1
2 1
1 2
2 2
2 1
1 1
2 1
2 1
2 1
1 2
1 2
2 1
2 2
1 2
1 2
2 1
1 2
2 1
2 2
2 1
1 1
1 2
1 2
2 2
1 1
1 1
2 1
2 2
2 1
1 2
2 1
1 2
1 2
2 2
1 1
1 1
1 2
2 2
1 2
2 1
1 1
2 2
1 1
2 1
1 1
2 2
1 2
1 1
2 1
1 2
1 1
2 1
1 2
1 1
1 2
2 2
2 2
2 1
1 2
2 1
1 1
2 1
2 1
1 1
2 2
2 2
2 2
2 2
1 1
2 2
2 1
2 2
2 1
1 2
1 2
2 2
1 1
1 1
2 1
2 2
2 2
2 2
1 2
2 2
2 1
1 2
2 1
2 2
1 1
1 2
1 2
2 1
1 2
2 1
1 1
2 2
2 2
1 2
2 1
1 1
2 1
1 2
2 2
1 1
2 1
2 2
1 1
1 2
1 2
2 1
1 2
1 1
1 1
2 2
1 2
2 2
2 2
1 2
1 2
2 2
1 2
1 1
2 2
2 2
2 1
2 1
2 1
2 2
2 1
1 2
2 2
2 2
1 2
1 1
2 2
2 1
2 2
2 2
2 1
2 1
1 2
2 2
2 2
2 2
2 2
1 2
1 1
2 2
2 1
2 1
2 2
1 1
2 2
2 2
2 1
1 1
1 2
2 2
2 2
2 1
1 1
2 1
2 2
1 1
1 1
2 2
1 2
1 1
2 2
2 1
1 2
2 2
2 2
1 1
1 2
1 2
1 1
2 1
2 1
1 2
1 2
2 1
1 2
1 2
1 2
2 2
2 2
1 1
1 1
1 2
1 1
2 1
2 1
1 2
1 2
2 1
1 1
1 1
1 1
1 2
2 2
2 1
2 1
1 2
2 2
1 2
2 1
2 1
2 2
1 1
1 1
1 1
1 2
2 1
1 1
2 2
1 2
2 2
1 1
1 1
1 1
1 2
1 2
1 1
2 1
1 1
2 2
2 1
2 2
2 1
1 2
1 1
2 1
2 2
1 2
2 1
1 2
1 1
2 1
1 1
1 1
1 1
1 1
1 2
1 2
2 1
2 1
1 1
2 2
2 1
1 1
2 1
2 1
1 1
1 2
1 1
1 2
1 2
2 2
2 1
1 2
1 2
1 1
2 1
2 1
2 2
2 1
1 2
2 2
2 1
2 2
2 1
2 2
1 2
2 1
1 1
1 2
2 1
1 2
2 2
2 1
1 2
2 1
2 1
2 2
2 1
2 1
1 1
2 1
2 1
2 1
2 2
1 1
2 2
2 1
2 1
2 2
2 2
2 2
1 2
2 2
2 2
2 2
1 2
2 1
2 1
2 2
2 2
1 2
1 2
1 2
1 1
1 1
1 2
1 1
1 2
1 2
1 2
2 2
1 2
1 1
1 1
1 2
1 1
2 1
1 2
1 1
2 2
2 1
1 2
2 2
2 1
2 1
1 2
1 2
1 2
1 2
1 2
2 1
2 1
1 2
2 1
1 1
1 1
1 2
1 1
2 2
1 1
2 2
2 1
1 1
2 2
2 1
2 2
2 1
2 2
2 1
2 1
1 1
1 2
1 1
2 2
2 2
2 2
1 2
2 2
1 1
1 1
2 2
2 1
2 2
2 2
2 2
1 1
2 2
2 2
1 2
1 2
1 1
1 2
1 2
2 2
1 2
2 2
2 1
1 1
2 1
2 1
2 1
1 1
1 1
1 1
2 1
1 2
2 1
2 2
2 1
1 2
1 1
2 1
1 1
1 2
2 1
2 1
1 2
1 2
1 1
2 1
1 2
2 1
2 2
1 2
2 1
2 1
1 2
1 2
2 1
2 2
2 1
2 1
1 1
2 2
2 1
1 1
1 1
1 2
2 1
2 1
1 2
2 1
1 1
2 2
2 1
1 1
2 2
1 1
2 1
2 2
1 2
1 1
1 1
1 1
2 2
2 2
1 2
2 2
1 1
1 1
1 1
2 2
2 2
1 2
1 2
2 1
1 1
1 1
1 2
2 1
1 1
2 2
2 2
1 1
2 1
2 1
2 2
2 2
1 1
1 2
2 1
2 1
2 2
2 2
2 1
2 2
2 1
2 2
2 2
1 1
2 2
2 1
2 1
1 2
2 2
1 2
1 2
2 1
2 1
1 1
2 1
1 2
1 2
1 1
2 1
2 1
2 2
2 2
1 2
2 1
1 2
2 1
1 1
2 1
1 2
2 2
2 1
1 2
2 2
1 1
1 2
1 2
2 1
1 1
2 1
2 1
1 2
2 1
1 1
2 2
1 2
2 1
2 1
2 2
1 1
2 2
1 2
2 1
1 1
1 2
2 2
2 2
1 1
1 2
2 1
1 2
2 1
2 1
2 1
1 1
2 2
2 2
1 1
2 2
2 2
1 2
1 2
2 2
1 2
2 2
2 2
1 2
1 2
2 1
2 1
1 1
2 2
2 1
2 1
1 2
2 1
2 1
2 2
2 1
2 1
1 1
2 2
2 2
1 1
1 2
1 1
1 1
2 2
1 2
2 1
2 1
1 1
1 2
1 2
1 2
2 2
1 2
2 2
2 2
2 1
1 2
2 1
1 2
1 1
2 1
2 2
2 2
1 2
2 1
1 1
1 1
2 2
2 2
2 2
1 1
1 1
2 2
2 2
1 2
1 1
2 2
1 1
2 2
2 1
1 2
2 2
2 2
2 2
2 2
1 2
1 2
2 1
2 1
2 2
1 2
2 1
2 2
2 2
1 1
2 2
2 1
2 1
1 1
2 2
1 1
1 1
2 1
2 1
1 2
1 1
1 2
2 2
2 2
2 2
2 2
2 2
1 1
1 2
1 1
1 1
2 2
1 1
1 1
1 2
1 1
1 1
1 1
2 2
1 1
2 2
2 2
2 1
1 2
2 1
2 1
2 2
2 1
1 1
2 2
2 1
1 2
2 2
2 1
2 1
2 2
1 1
1 2
2 1
1 1
1 1
2 1
1 2
2 1
2 1
2 2
1 2
1 1
2 1
1 1
1 1
1 1
1 1
1 2
2 2
1 1
1 2
2 2
1 2
1 1
2 2
1 2
1 1
1 1
2 1
2 2
1 1
1 1
2 1
2 2
1 1
1 1
2 1
2 1
1 2
1 2
1 1
1 1
1 2
1 1
2 2
1 2
2 2
2 1
1 2
1 1
1 1
1 1
1 1
2 1
2 2
2 2
1 1
2 1
1 1
2 2
2 2
1 1
2 2
1 1
2 2
1 2
1 2
2 1
1 1
2 1
2 2
2 2
1 2
2 1
1 1
1 2
2 2
2 1
1 1
1 2
2 2
1 1
2 2
1 2
1 1
2 1
1 1
1 1
1 2
1 1
1 2
1 1
2 2
1 1
1 2
1 2
1 2
2 2
2 2
1 1
2 1
2 2
2 2
1 2
2 2
1 1
1 1
2 1
2 2
2 1
2 1
1 1
1 2
2 1
1 1
1 2
1 1
1 2
1 1
1 2
1 2
1 2
1 1
1 2
2 2
2 2
2 1
1 2
1 2
1 2
1 2
2 1
2 1
1 1
1 2
1 2
2 1
1 1
1 2
1 2
1 2
1 2
2 1
1 1
1 2
2 2
2 2
1 2
2 2
1 2
1 2
2 2
2 2
2 2
1 2
1 1
2 2
1 1
1 1
2 2
2 2
2 2
2 1
1 1
2 2
2 1
2 1
1 1
1 1
1 1
2 1
1 1
2 1
2 2
2 1
1 2
2 1
2 2
1 2
2 1
2 2
2 2
2 2
2 2
1 2
1 1
2 2
2 1
2 1
1 1
2 2
2 1
1 2
1 2
1 1
1 2
2 1
1 2
2 2
2 1
2 1
1 2
1 1
2 1
1 2
2 1
2 1
1 1
2 2
1 1
1 1
2 2
2 2
2 2
1 1
1 1
1 2
1 1
1 1
1 2
2 1
1 2
1 1
1 2
1 2
2 2
1 1
1 1
1 2
1 2
1 2
2 1
1 1
1 1
2 1
1 1
1 1
2 2
2 1
2 2
1 1
2 1
1 1
2 2
1 2
2 2
1 1
2 1
1 2
2 1
1 1
1 1
2 1
1 1
2 2
1 2
1 1
2 2
1 1
2 2
1 1
1 2
2 2
2 2
1 2
1 1
2 1
1 2
1 1
1 1
1 2
1 1
2 2
2 2
1 1
2 2
1 1
2 1
1 2
1 2
1 2
2 2
2 2
1 2
1 1
1 2
2 2
2 2
1 1
1 2
2 1
2 1
2 1
1 2
1 1
1 2
1 1
2 2
2 1
1 1
1 2
1 1
1 1
1 2
1 2
1 2
2 1
2 2
2 1
2 1
1 2
2 2
1 1
2 1
2 2
1 1
2 1
2 2
2 2
1 1
2 2
2 1
1 1
1 1
1 2
1 1
2 1
1 1
2 2
2 1
2 2
1 1
2 1
1 1
1 1
1 2
1 1
1 1
1 1
1 2
1 1
1 2
2 2
1 2
1 1
2 2
1 1
2 2
1 1
1 1
1 1
1 2
1 1
1 1
2 1
1 2
1 2
1 1
2 2
2 2
1 1
1 2
1 2
1 2
2 2
1 2
2 1
2 2
2 2
1 1
2 2
1 2
1 1
2 1
1 1
2 1
1 2
1 2
2 2
2 1
1 2
2 2
1 1
1 2
1 1
1 1
2 1
2 1
2 1
2 2
1 2
1 1
1 1
1 2
2 1
1 1
2 1
2 2
2 1
1 1
2 2
2 2
1 2
2 2
1 2
2 1
1 2
2 1
1 2
1 2
1 1
1 1
1 1
1 1
2 1
2 2
2 1
2 1
2 1
2 2
1 1
2 2
2 1
1 1
2 1
1 1
1 1
2 2
2 1
2 1
1 2
2 2
1 1
1 1
1 2
2 2
2 2
1 1
1 1
1 2
1 1
1 1
2 2
1 2
1 1
1 1
2 2
2 1
1 1
2 2
2 1
1 2
1 2
1 1
2 2
2 2
2 2
2 1
1 1
1 1
2 2
1 1
2 2
1 2
2 1
1 2
1 2
2 1
2 1
2 2
1 1
1 1
1 2
2 1
2 1
2 1
1 1
2 1
1 1
2 1
1 2
1 2
2 1
2 2
2 2
1 1
1 2
2 2
2 1
1 2
2 2
1 1
2 1
2 1
1 2
1 1
2 1
2 1
1 1
1 1
1 2
2 2
1 1
2 1
1 1
1 1
2 2
1 2
1 1
1 2
1 2
1 2
2 2
2 2
2 2
1 2
2 2
2 1
2 2
2 2
1 2
1 2
2 1
1 2
1 1
2 2
1 1
2 1
2 2
1 1
1 2
2 1
1 1
1 2
2 2
1 2
2 1
1 1
2 2
1 2
2 2
1 1
1 2
2 1
1 2
1 2
2 2
1 2
2 1
1 1
2 2
1 1
1 1
2 1
2 1
1 1
1 2
2 1
1 2
2 2
1 2
2 2
2 2
1 1
2 1
2 2
1 2
2 1
2 2
1 1
1 2
1 1
2 1
1 1
2 2
1 2
2 1
2 1
2 2
1 1
1 1
2 1
2 2
1 1
1 1
2 1
2 2
1 1
2 2
1 2
2 2
1 1
2 2
1 2
2 2
2 1
1 2
1 1
2 2
1 2
1 2
2 2
2 2
2 1
2 1
1 2
2 1
1 1
1 1
2 2
2 1
2 1
2 1
1 1
1 1
2 2
1 1
2 2
1 1
1 1
1 1
1 2
2 1
1 1
1 1
1 2
2 1
2 2
1 1
1 2
1 1
2 2
2 2
1 2
1 2
2 1
2 2
1 2
2 1
1 2
2 1
2 1
2 2
1 1
2 2
2 1
1 1
2 2
2 1
1 1
2 1
1 1
2 2
2 1
1 2
2 2
1 2
2 2
1 1
2 1
2 1
2 1
1 2
1 2
1 2
2 1
2 1
1 1
2 2
1 1
2 1
2 1
2 2
1 1
1 1
1 2
1 1
2 1
1 2
2 1
1 2
1 2
1 2
1 1
1 1
1 2
2 2
1 1
1 2
1 2
1 2
2 1
1 2
2 1
1 2
2 1
2 2
1 1
1 2
1 2
1 2
1 1
1 2
1 2
1 1
1 1
1 2
2 1
1 1
2 2
1 2
2 2
1 2
2 1
1 2
1 2
2 2
1 1
2 1
1 1
2 1
2 2
1 1
2 1
1 2
1 2
1 1
2 1
2 2
1 1
2 2
1 1
2 1
1 2
1 2
2 1
1 1
2 2
1 2
1 1
2 1
2 1
1 1
1 2
2 2
2 1
2 1
1 1
1 1
1 1
1 1
2 1
2 2
2 1
1 1
2 1
1 1
1 1
2 1
2 2
1 1
1 2
2 1
2 2
2 1
1 1
2 1
1 1
2 2
1 1
1 2
2 2
2 1
2 1
1 1
2 1
1 2
1 2
2 2
1 2
2 1
1 1
2 2
1 1
1 1
2 1
1 1
1 2
2 1
2 2
1 2
1 2
1 2
2 2
1 2
2 2
2 1
2 1
1 2
1 1
2 2
1 1
1 1
1 1
1 2
2 1
1 1
1 2
2 2
2 2
1 2
2 1
2 2
1 1
1 2
1 2
2 2
1 2
1 1
2 2
2 2
2 2
2 2
1 1
2 2
1 1
2 1
2 1
2 2
1 1
2 1
1 2
1 2
1 2
2 1
2 2
2 1
1 1
1 2
1 1
2 1
1 2
1 2
1 1
1 1
1 1
2 2
2 1
1 2
1 1
2 1
1 1
1 2
2 2
1 2
1 1
1 1
2 1
1 2
2 1
1 2
1 2
1 1
2 1
1 2
1 1
2 1
2 1
1 2
2 1
1 1
2 2
2 1
2 1
2 2
2 1
1 2
1 1
1 1
1 2
1 2
1 1
2 2
2 2
1 1
1 1
1 1
2 2
2 1
2 1
1 2
2 1
1 2
1 1
1 2
2 1
1 1
1 1
1 2
1 1
2 1
2 1
1 2
1 2
2 2
1 2
1 1
2 1
1 2
2 1
2 2
1 1
1 2
2 1
1 2
2 2
2 2
1 2
1 2
2 2
2 2
2 2
1 1
1 1
1 2
2 2
1 1
2 1
1 1
1 1
1 2
2 2
1 1
2 1
2 2
1 1
2 1
2 1
2 1
2 1
1 2
2 1
1 1
1 1
1 2
1 1
1 1
2 2
1 2
1 1
2 2
2 1
2 1
1 2
1 2
1 1
2 1
1 1
1 2
2 1
1 2
1 2
2 2
1 1
1 2
2 1
1 1
1 1
1 2
1 2
1 2
1 1
2 1
1 1
1 1
1 1
1 1
1 2
2 1
1 1
1 2
2 1
1 1
1 2
2 2
2 1
2 2
2 2
2 1
1 1
2 2
2 2
1 1
2 2
2 2
1 2
2 1
1 2
1 2
2 1
2 1
2 1
1 2
1 1
1 2
2 1
1 1
2 2
1 1
2 1
2 1
2 1
1 1
1 2
2 2
2 2
1 1
1 2
1 1
2 2
2 1
1 1
1 1
1 2
1 2
2 1
1 2
2 1
2 2
2 2
2 2
1 1
1 2
2 1
1 2
2 2
1 1
1 1
1 1
1 2
2 2
2 2
1 1
1 2
2 2
2 2
1 2
2 1
1 1
2 2
1 1
2 1
2 1
1 1
2 2
2 2
2 1
1 1
2 1
2 2
1 1
2 1
1 1
1 2
2 2
1 2
1 2
1 1
2 1
1 2
2 2
2 1
2 1
2 1
1 1
2 1
1 1
2 2
2 2
1 1
2 2
1 1
2 1
1 1
2 2
2 1
1 2
2 1
1 1
1 1
1 1
2 2
1 2
1 1
1 2
2 1
1 2
1 1
2 2
2 2
1 1
1 1
1 1
2 2
1 1
1 1
1 1
1 2
2 1
2 1
2 2
2 1
1 1
2 2
2 1
2 1
1 1
2 1
2 1
2 2
1 1
1 2
2 1
2 2
2 2
1 1
1 1
1 1
2 2
2 1
1 1
1 1
2 1
1 1
2 1
2 1
2 1
1 1
2 2
1 1
2 2
1 1
1 2
1 1
2 1
2 1
2 1
2 1
2 2
1 1
2 2
1 1
2 1
2 2
2 2
1 2
2 1
2 2
2 1
2 1
2 1
1 1
1 1
1 1
2 2
1 1
1 2
1 2
2 2
1 1
2 1
1 1
1 2
1 2
2 2
2 2
1 1
2 1
2 1
1 2
2 1
2 2
2 1
2 1
1 2
1 2
2 2
2 2
2 1
1 1
2 1
1 2
1 2
2 2
2 1
2 2
1 1
1 1
2 2
1 1
2 1
2 1
2 1
2 1
2 1
2 2
1 2
2 2
2 1
2 2
2 2
1 1
1 1
2 1
2 2
2 1
1 1
2 1
1 1
2 1
2 2
1 2
1 2
1 1
1 1
2 1
2 1
1 2
2 1
2 1
1 1
2 2
1 2
1 2
2 2
1 1
2 1
1 1
2 1
1 2
1 2
1 1
1 2
2 2
1 1
1 1
2 1
1 2
2 1
2 1
2 2
1 1
2 1
1 1
2 2
1 1
2 1
2 1
2 1
2 1
1 2
1 1
1 2
2 1
2 2
1 2
2 2
1 2
2 2
1 1
1 1
2 1
2 1
2 1
1 1
1 1
1 1
2 1
2 1
1 1
2 1
1 1
1 1
1 2
1 1
2 2
1 1
1 1
2 1
2 1
2 1
2 1
1 1
1 2
2 1
1 1
1 1
1 1
1 1
1 2
2 2
2 2
1 2
1 1
1 2
1 1
2 1
2 2
1 2
2 1
2 1
1 1
2 2
2 2
1 1
2 1
1 2
1 1
1 1
1 1
2 2
2 2
2 2
1 2
2 1
2 2
2 1
1 2
2 2
1 1
2 2
1 2
1 1
1 2
2 2
2 1
2 2
1 1
1 1
1 1
1 1
2 2
1 2
1 2
2 1
2 2
1 2
1 1
1 1
1 2
2 1
2 2
1 1
1 1
2 2
1 2
1 2
2 1
1 1
1 2
2 1
1 2
2 2
2 2
1 1
1 1
1 1
2 1
1 1
1 2
1 2
2 2
2 1
2 2
2 2
2 2
1 1
1 2
1 1
1 2
2 2
1 2
1 1
1 2
2 1
1 1
1 1
2 2
1 2
2 1
2 2
2 2
1 1
1 2
2 2
2 2
1 1
1 1
1 2
1 1
2 2
2 1
2 1
1 2
1 1
2 2
1 1
1 2
2 2
1 1
1 2
2 1
1 2
2 1
1 1
1 2
1 1
2 1
2 2
1 2
1 1
2 1
1 1
1 1
2 2
2 1
1 2
2 2
2 1
2 1
2 2
2 1
2 1
2 1
1 1
2 1
2 2
1 1
1 1
2 1
2 2
1 2
2 1
1 2
2 2
2 1
2 2
1 2
2 1
2 2
1 1
1 1
1 1
1 2
1 1
2 1
1 2
2 1
1 2
2 1
2 1
2 2
1 2
1 2
1 1
1 1
2 2
1 2
1 1
1 2
2 2
1 1
2 2
2 1
2 1
1 2
1 1
2 1
2 2
2 2
1 1
1 1
2 1
1 1
2 1
2 1
2 2
1 2
2 2
2 1
1 2
1 1
1 2
1 1
1 2
1 1
1 2
1 1
2 1
2 1
2 2
1 2
2 1
2 2
1 1
2 1
1 1
1 1
1 2
1 2
2 2
2 1
1 1
2 1
2 1
1 2
1 2
2 1
2 2
1 1
2 2
1 2
2 2
1 1
1 1
1 1
1 1
1 2
1 1
2 2
2 1
1 2
2 1
2 1
1 1
1 2
1 1
2 2
1 2
1 1
2 2
1 2
1 2
1 1
1 2
1 1
1 1
2 2
2 2
1 1
2 1
1 1
1 1
2 2
2 2
2 2
2 2
1 2
1 1
1 2
1 2
2 2
2 2
2 2
2 1
2 1
2 2
1 2
2 2
2 1
2 2
1 1
1 1
2 1
1 1
2 1
2 1
1 2
1 2
2 1
2 2
2 2
1 2
2 1
2 1
2 2
1 2
2 1
1 1
1 2
1 2
1 1
1 2
1 2
2 2
2 1
2 2
1 1
1 1
2 1
2 2
1 1
2 1
2 1
1 1
2 1
1 2
1 2
1 1
2 1
2 2
2 1
2 2
1 2
1 2
1 2
2 1
2 1
1 1
1 2
2 2
2 2
2 2
1 2
1 2
1 1
1 2
2 2
1 2
1 1
1 2
2 2
2 1
1 2
2 1
1 2
2 2
1 2
1 1
2 2
1 1
2 1
2 1
2 2
1 2
1 2
2 1
2 1
2 1
1 1
1 1
2 1
1 2
2 2
2 1
2 1
2 2
2 2
2 1
1 1
1 1
1 1
2 2
1 1
2 2
1 2
1 1
1 1
1 1
2 2
2 2
1 1
2 1
2 2
1 1
2 2
1 2
1 1
2 1
2 2
2 1
2 2
1 1
1 2
1 2
2 2
1 2
2 1
2 1
2 1
1 1
1 2
1 2
1 2
2 2
1 2
2 2
1 2
1 2
2 2
2 1
1 2
1 1
1 2
1 2
2 1
2 2
1 1
2 2
2 2
2 2
2 2
1 1
1 1
1 1
1 2
1 2
2 2
2 2
1 1
2 2
2 1
2 2
2 1
2 1
1 1
2 2
1 2
1 2
1 2
1 2
1 1
2 1
1 1
2 1
1 2
2 2
2 2
2 2
1 1
2 2
1 1
1 2
2 1
1 2
1 2
2 1
1 1
1 2
2 2
1 2
1 1
1 2
1 1
2 2
1 1
1 2
2 2
1 1
2 1
1 1
1 1
2 1
1 2
1 1
1 1
1 2
1 1
1 2
2 2
1 2
2 1
1 2
1 2
2 1
2 1
1 2
1 2
2 2
1 1
2 2
2 2
2 2
1 2
2 1
1 2
1 1
1 2
2 1
1 2
1 1
2 2
2 2
1 1
1 2
2 2
2 1
1 2
2 1
1 1
2 1
2 1
1 2
1 1
2 2
1 2
1 2
2 2
1 2
1 1
1 1
2 1
1 2
1 2
2 2
1 2
1 1
1 1
1 2
2 1
2 2
1 2
2 1
1 1
1 1
1 1
1 2
1 1
1 1
1 2
2 1
2 1
2 1
2 2
1 1
2 1
2 2
1 2
1 2
2 1
2 1
2 2
2 1
1 2
2 2
2 2
1 2
1 1
2 1
2 2
2 2
2 2
1 2
2 2
2 2
1 2
1 2
2 2
2 1
1 2
1 2
1 1
2 1
2 1
2 1
2 2
2 2
1 2
2 2
1 2
2 2
1 2
2 1
1 1
2 1
2 1
1 2
2 2
1 2
2 2
1 1
1 2
1 2
2 1
1 1
2 2
1 1
2 1
1 1
1 1
2 1
1 1
1 2
2 2
1 2
1 1
1 2
1 1
2 2
2 1
2 1
1 2
2 1
1 2
2 2
2 2
2 1
2 1
2 2
2 2
2 2
1 1
1 2
1 1
2 1
2 2
2 1
1 2
2 1
2 2
2 2
2 2
2 1
1 1
1 2
1 2
1 1
1 2
1 1
2 2
2 2
2 1
1 2
2 2
2 1
1 1
1 1
1 1
2 2
2 1
1 1
1 2
2 2
1 1
2 1
1 2
2 2
1 2
1 2
2 2
1 2
1 1
2 1
1 1
1 1
1 2
2 1
1 2
2 1
2 2
1 1
1 2
1 1
1 2
2 1
1 2
1 2
2 1
1 2
1 2
2 1
1 1
1 1
2 1
2 1
1 1
1 2
2 2
1 2
1 1
1 1
2 1
1 2
1 1
2 2
1 1
1 2
1 2
2 1
2 2
1 1
2 1
1 1
2 2
1 2
2 2
2 2
2 2
2 1
2 2
1 2
2 2
2 2
2 2
2 1
2 2
1 2
2 2
2 1
2 2
2 2
1 2
2 2
1 1
1 2
2 1
2 2
1 1
2 1
1 2
2 2
1 1
2 2
2 2
1 2
1 1
2 2
2 2
2 2
2 2
2 2
1 2
2 1
2 2
1 2
2 2
2 1
2 2
1 2
2 2
2 2
2 2
1 2
2 2
1 1
2 1
2 2
1 1
2 1
2 2
2 2
2 1
1 2
1 2
2 2
1 1
1 2
1 1
1 1
1 2
2 2
2 1
2 1
2 1
1 1
1 2
1 1
1 2
2 1
2 2
1 2
1 2
2 1
2 1
2 1
1 1
1 2
2 1
2 2
2 1
2 1
2 2
2 2
1 1
2 1
1 1
1 2
1 1
2 1
1 2
2 2
1 2
2 2
2 2
1 2
2 2
2 1
2 2
2 2
1 2
2 2
1 1
1 2
2 1
1 1
1 2
1 2
2 2
2 1
1 1
2 2
1 2
2 2
2 2
2 2
2 1
2 1
2 1
2 2
1 2
2 2
2 2
1 1
2 1
1 2
2 2
2 2
2 1
1 1
1 2
2 1
1 2
2 2
2 2
2 1
1 2
1 1
1 2
2 2
1 1
1 2
2 1
2 1
2 2
1 1
1 2
2 2
2 2
2 1
2 1
2 1
1 1
1 1
1 2
1 2
1 2
2 1
2 2
1 1
1 2
2 2
1 1
2 1
1 1
2 2
2 1
1 2
1 1
2 1
2 2
2 1
1 1
1 2
2 2
2 1
2 2
1 1
2 2
1 1
2 2
2 2
1 2
2 1
1 1
2 2
2 2
1 1
1 1
2 1
1 1
1 2
1 1
1 2
1 2
2 1
1 2
2 1
1 1
2 2
2 1
2 2
2 2
2 1
1 1
1 1
1 1
1 1
1 1
1 2
2 1
2 2
1 2
1 1
2 2
2 2
1 2
2 1
2 2
1 2
1 1
1 1
1 2
1 2
2 2
1 1
2 2
2 2
2 1
2 2
1 2
2 1
2 1
2 2
2 2
2 2
2 2
2 1
1 2
1 1
2 2
1 1
2 2
1 1
2 2
1 1
2 2
1 2
2 1
2 1
2 2
1 1
2 2
2 1
2 2
2 1
2 2
2 2
1 1
2 1
1 1
1 2
1 1
2 1
2 2
1 2
1 1
1 2
1 2
2 2
1 1
2 1
2 2
1 2
2 2
2 1
1 1
1 2
2 2
2 1
1 1
2 2
1 1
2 2
2 1
2 2
1 2
2 2
2 2
2 1
1 2
2 2
1 1
2 1
1 1
1 2
2 2
1 2
2 1
2 1
1 2
2 2
2 2
2 2
2 1
2 2
1 1
1 2
2 1
1 2
1 2
1 1
2 1
1 2
1 1
2 1
1 1
2 2
1 2
1 1
2 2
1 1
2 2
1 2
1 1
1 1
1 2
2 2
1 2
1 1
1 2
1 2
2 2
1 1
1 2
1 2
2 1
1 2
1 2
1 1
2 1
1 1
1 2
2 2
1 2
2 1
1 1
1 1
2 2
1 1
1 2
1 2
2 2
2 2
2 1
2 1
2 1
2 1
2 1
2 1
1 1
2 2
1 1
1 2
1 2
1 1
1 2
2 1
2 2
1 2
2 1
2 1
1 1
2 2
2 1
2 1
1 2
2 2
2 1
2 2
2 1
1 2
2 1
2 1
1 1
1 1
1 2
2 2
2 2
2 1
2 2
2 2
1 1
2 1
2 2
2 2
1 2
1 1
1 2
2 2
1 1
2 1
1 1
2 1
2 2
2 2
2 2
1 1
1 1
2 1
1 2
1 1
1 2
1 2
2 2
1 2
2 1
1 1
2 1
1 1
1 2
2 1
1 2
1 2
1 2
2 1
2 2
2 2
2 1
1 1
2 1
2 2
2 2
1 1
2 2
2 1
1 1
2 2
1 1
1 2
1 2
1 2
1 1
1 2
2 2
2 2
1 2
1 1
1 2
2 1
1 1
2 2
2 2
1 2
2 1
2 1
1 1
1 1
2 1
2 1
2 1
2 2
1 2
1 1
2 2
2 1
1 1
1 1
2 1
2 2
2 1
1 1
2 1
2 2
2 1
1 1
1 1
2 2
1 2
1 2
1 1
1 2
2 2
2 2
1 2
2 2
1 2
2 1
2 1
2 2
1 2
1 2
2 2
1 1
1 2
2 2
2 2
1 2
2 2
1 1
1 1
2 2
2 1
1 1
2 1
2 1
2 1
1 1
1 2
1 1
1 1
1 1
1 1
2 2
2 1
2 2
2 2
2 2
2 2
2 1
2 1
1 1
2 1
1 1
2 1
2 2
2 1
1 1
2 2
1 1
2 2
1 2
2 2
2 1
2 2
1 2
2 1
2 2
1 2
2 2
2 2
2 2
2 1
1 2
1 2
2 1
2 2
1 1
2 2
2 1
2 2
2 1
1 1
2 2
1 1
2 2
1 2
2 2
1 2
2 2
2 1
1 2
2 2
2 2
1 2
2 1
2 1
2 1
1 2
1 2
1 1
2 2
2 1
1 2
2 2
2 2
2 1
2 1
1 1
2 1
1 2
1 1
1 1
1 1
2 2
2 2
1 1
2 2
1 1
2 1
2 2
1 2
2 2
2 1
2 2
1 1
2 2
2 1
2 2
1 2
2 2
1 2
2 1
1 2
1 2
1 2
2 2
1 1
2 1
1 2
1 1
1 2
1 2
1 2
1 1
1 2
2 1
2 2
2 1
2 2
2 2
1 1
2 2
1 1
2 1
1 1
2 2
2 2
2 2
1 1
2 2
1 1
2 2
1 2
1 2
1 2
1 1
2 2
2 2
1 2
2 2
2 1
1 2
1 2
1 1
1 2
2 1
2 2
1 2
1 2
1 2
2 1
2 2
2 1
2 2
1 1
2 1
1 2
1 1
1 2
1 1
2 1
1 2
1 1
2 1
2 2
2 1
1 2
1 2
1 1
2 1
2 1
1 2
2 2
2 1
1 1
2 1
2 1
1 2
1 1
1 1
1 1
2 1
1 2
1 2
1 2
1 1
2 2
2 1
1 2
2 2
1 1
1 1
1 2
1 2
1 2
2 2
2 2
2 1
2 1
1 1
2 2
2 2
2 1
2 2
1 1
1 1
2 2
1 1
2 1
2 2
1 2
1 1
2 1
1 1
1 1
2 1
1 1
1 1
1 1
2 1
2 2
2 1
1 1
2 2
1 1
1 2
2 1
2 2
2 2
2 1
1 1
2 2
2 2
1 1
2 1
2 2
1 2
1 1
2 2
2 1
1 2
1 2
1 2
1 1
2 2
2 2
1 1
1 1
1 2
1 2
2 1
2 2
1 1
1 2
1 2
1 1
2 2
2 1
1 1
1 1
1 1
2 1
2 2
2 1
1 2
1 1
1 2
1 2
2 2
1 2
1 2
2 2
2 1
1 2
1 1
2 2
1 1
1 2
1 2
2 2
1 1
2 2
1 2
1 2
2 2
2 1
1 1
1 1
2 2
1 2
2 2
1 2
2 1
2 2
1 2
2 2
2 1
2 1
2 2
2 1
1 1
2 1
1 1
2 2
1 2
2 2
1 1
2 1
1 2
1 2
1 1
1 1
1 1
1 1
1 1
1 1
2 2
1 2
2 1
2 1
1 2
1 2
2 1
2 2
1 1
1 2
1 2
1 2
2 1
1 1
2 1
2 1
2 2
1 2
2 1
1 1
2 1
2 2
2 1
2 1
1 1
1 2
2 1
1 2
1 1
2 2
2 2
2 2
1 1
2 2
2 2
1 2
1 2
1 1
2 1
1 2
1 2
1 2
1 1
2 2
2 2
2 1
2 1
1 2
2 2
2 1
2 2
1 2
1 2
1 2
1 1
2 1
2 2
1 2
1 1
2 2
1 2
1 2
2 1
2 2
2 2
2 1
2 2
1 1
1 1
2 1
2 2
2 2
1 2
1 2
1 2
1 1
1 2
2 2
1 1
1 1
2 1
2 1
1 2
2 2
1 1
1 2
1 2
2 1
2 1
2 1
2 1
1 2
1 2
2 1
1 2
2 2
2 2
1 1
1 1
1 1
2 1
2 2
1 1
1 2
1 2
1 2
1 2
2 2
1 1
1 2
2 2
1 1
2 1
2 2
2 2
2 1
1 2
1 2
1 2
1 2
2 1
1 2
2 1
2 2
1 1
2 2
1 1
2 2
2 1
2 1
1 1
1 2
1 1
1 2
1 1
1 1
2 1
2 2
1 2
2 2
2 2
1 2
2 2
2 2
2 1
2 1
1 2
2 2
2 2
1 2
2 1
1 1
1 1
2 2
1 1
1 2
2 2
1 2
1 2
2 2
1 2
2 2
1 2
1 2
1 1
2 1
1 2
2 2
2 1
2 1
2 2
1 2
2 1
1 2
1 2
2 2
1 2
2 2
2 1
2 2
1 1
2 2
1 2
2 2
2 1
1 2
2 1
2 1
2 2
2 2
1 1
1 2
2 2
1 2
1 1
1 1
2 1
2 1
1 1
2 2
2 1
2 1
2 2
2 2
1 2
1 1
1 2
2 1
2 1
1 1
1 2
1 2
2 1
2 2
2 2
1 1
2 1
1 2
1 1
1 2
2 1
2 2
2 1
2 1
1 2
2 2
1 1
1 2
1 2
2 2
1 2
1 1
1 1
1 1
2 1
2 2
1 2
1 2
2 2
1 2
1 1
2 1
1 1
2 1
1 2
1 2
2 1
1 2
2 2
2 2
1 1
1 1
1 2
2 2
1 1
2 1
2 1
2 1
2 1
1 2
2 2
1 2
2 1
2 1
1 1
1 2
2 1
2 2
1 2
2 1
1 2
1 1
1 1
1 1
1 2
1 2
2 2
2 1
2 2
2 2
1 1
1 2
2 2
2 2
1 2
2 2
2 1
1 1
1 1
2 2
1 2
1 2
2 1
2 2
2 2
1 2
2 1
2 2
2 1
2 1
1 2
2 1
1 1
1 1
2 1
1 2
2 2
1 2
1 2
1 2
1 1
1 1
1 1
1 2
2 1
1 1
2 2
2 2
2 2
2 1
2 1
2 2
1 2
2 1
1 1
1 2
1 2
2 2
1 2
2 2
2 1
2 2
1 2
2 2
1 2
2 2
1 1
1 1
2 1
1 2
1 2
1 2
2 1
2 1
2 1
1 1
1 2
1 2
1 2
2 2
1 1
2 1
1 1
2 1
2 2
1 1
2 1
2 2
1 2
2 2
2 2
1 1
2 1
2 1
2 2
1 2
1 1
1 2
1 1
2 2
2 2
2 1
2 1
2 2
2 2
2 1
1 2
2 2
2 2
1 1
1 2
1 1
2 2
2 2
1 1
2 1
2 1
1 1
1 2
1 1
1 2
1 1
2 1
1 2
1 1
2 1
2 1
1 2
1 2
2 2
2 2
2 1
1 2
1 2
2 2
1 2
2 1
2 1
2 1
2 1
1 1
2 1
1 1
2 2
2 1
1 1
1 2
2 2
1 2
1 1
1 1
1 2
2 2
2 2
1 2
1 2
1 1
2 2
2 1
1 2
1 1
2 1
2 1
1 1
1 1
1 2
1 2
1 2
1 2
2 2
1 1
1 1
2 2
1 1
2 2
1 1
1 1
1 2
1 2
2 2
1 2
2 2
1 1
1 2
1 1
2 2
1 2
1 1
1 1
2 2
2 2
1 2
1 2
1 1
1 2
2 2
1 2
1 1
2 2
2 1
1 1
2 2
2 2
1 1
1 2
1 1
2 2
1 2
2 2
1 1
2 1
1 1
1 1
2 2
2 1
1 2
1 1
2 1
2 1
2 2
1 2
2 1
1 1
2 2
1 2
2 1
2 2
2 1
2 2
1 2
2 2
1 2
1 1
1 2
1 1
1 1
2 2
1 2
2 2
1 1
2 2
2 2
2 1
1 2
1 2
2 1
1 2
2 1
1 2
1 2
1 2
2 2
1 1
1 1
2 1
1 1
2 2
1 1
1 1
1 1
1 1
2 2
2 2
1 1
1 1
1 1
2 2
2 1
2 1
1 2
2 2
2 1
2 2
1 1
1 2
1 1
1 1
2 1
2 2
1 1
1 1
1 2
2 1
2 2
1 2
2 2
2 1
2 2
1 2
1 1
1 1
2 2
2 2
1 2
2 2
1 1
2 1
2 1
1 1
2 2
2 1
1 2
2 2
1 1
1 1
1 2
1 2
2 1
1 2
1 1
1 2
1 2
1 2
1 1
1 2
1 1
1 2
1 2
1 2
1 2
2 2
2 1
1 1
2 2
1 1
2 2
1 2
1 2
2 1
1 2
2 1
1 1
1 2
1 2
2 1
2 2
2 1
2 1
2 2
2 2
1 1
1 1
1 2
2 1
1 2
2 1
1 1
2 2
1 1
1 1
2 1
1 2
1 1
2 2
2 2
1 2
2 1
1 2
2 1
1 2
2 2
2 1
2 1
2 2
1 2
2 2
1 1
1 2
2 1
2 2
1 2
2 2
1 2
1 2
1 1
1 2
2 1
1 1
2 2
1 2
1 2
2 1
2 2
1 1
2 1
1 2
1 1
1 1
2 1
2 1
1 1
1 1
2 1
2 1
1 1
1 2
2 2
2 1
1 2
2 2
1 1
1 2
1 1
2 1
1 1
1 2
2 2
1 2
2 1
1 2
2 2
2 1
2 1
1 2
2 1
1 1
1 2
1 1
1 1
2 2
2 1
1 2
2 2
1 2
1 2
1 1
1 1
2 2
2 2
2 2
1 2
2 1
1 1
1 1
2 1
2 2
1 1
2 2
2 1
2 1
1 1
2 1
1 2
1 2
2 2
2 1
2 1
2 2
2 1
1 2
2 1
1 1
2 1
1 2
2 2
2 1
1 1
2 1
1 1
1 2
2 2
2 1
2 1
1 1
2 1
2 1
1 1
2 2
1 2
1 2
1 1
1 1
2 1
2 2
2 2
1 2
2 2
1 1
2 1
2 2
2 2
2 1
1 2
2 1
2 1
2 1
1 2
2 1
1 2
1 1
2 2
1 2
2 2
2 2
1 1
1 2
1 1
2 2
2 2
1 1
2 2
2 1
1 1
2 2
2 2
1 2
2 1
1 2
2 2
2 2
2 2
1 2
2 1
2 1
1 2
2 2
2 2
1 2
2 2
1 2
1 1
2 2
2 2
2 1
2 1
2 1
1 1
1 1
1 1
2 1
2 2
1 2
1 1
2 2
1 1
2 1
2 1
2 1
1 2
2 2
1 2
1 2
1 2
2 1
2 1
1 1
2 1
2 1
2 2
1 2
2 2
1 1
2 2
1 2
2 2
1 2
2 2
2 1
2 2
2 2
2 2
2 1
2 2
1 2
1 1
1 2
1 2
1 2
2 2
2 1
2 1
1 2
2 2
2 2
2 1
1 2
1 2
1 2
2 2
2 1
1 1
2 2
2 2
1 1
2 1
1 1
2 2
2 2
2 1
1 2
1 1
1 1
1 1
1 1
2 2
2 2
2 2
1 1
1 1
2 1
2 2
1 1
1 2
1 1
2 1
1 2
1 2
1 2
1 1
1 1
1 2
1 1
2 2
2 2
2 1
1 2
1 1
1 2
1 1
2 2
1 1
1 1
2 1
1 1
1 1
1 2
2 1
2 1
1 1
1 2
1 2
2 1
1 1
1 2
1 2
2 2
2 2
1 2
2 1
2 2
1 1
1 2
2 2
2 1
1 1
1 1
2 2
2 1
1 1
1 1
1 2
1 1
2 1
1 1
2 2
1 1
2 2
1 2
2 2
1 2
1 2
2 1
1 1
2 2
1 2
1 1
2 1
1 2
1 2
2 1
2 2
1 1
1 1
1 1
1 1
1 2
1 1
2 2
2 2
1 1
1 2
1 2
1 2
2 1
2 1
2 2
1 1
2 1
1 2
1 1
1 2
1 1
2 1
1 1
1 1
1 1
1 2
1 2
2 2
2 2
1 1
2 1
2 2
1 1
1 2
2 2
2 1
2 1
1 1
1 2
1 2
2 2
2 2
2 1
1 2
1 1
1 1
2 2
1 2
2 2
1 1
2 2
1 2
1 1
1 2
1 1
1 1
1 2
2 2
2 2
1 1
2 1
2 2
2 2
1 2
1 1
2 2
1 1
1 1
2 1
1 1
1 1
2 2
1 1
2 2
1 1
2 1
1 2
2 1
2 2
1 2
2 2
2 2
2 1
2 2
1 2
1 1
1 1
2 2
1 2
2 1
1 2
1 2
1 1
1 2
1 2
2 2
1 1
1 1
2 1
2 2
1 2
2 2
2 2
1 2
2 2
2 2
1 1
1 1
1 1
1 1
1 2
2 2
2 1
1 1
2 1
2 2
2 1
1 1
2 1
1 1
2 2
1 1
2 1
2 2
1 2
2 2
2 1
1 1
1 2
2 1
2 1
2 2
2 2
1 2
1 2
1 2
2 1
2 1
1 2
2 2
2 2
2 2
2 2
1 2
1 1
2 1
2 1
1 1
1 1
1 2
2 2
2 2
2 2
2 2
1 2
2 2
1 1
2 1
2 2
1 1
1 1
1 1
1 2
2 1
2 1
1 2
2 1
1 1
2 2
2 1
1 1
2 2
2 2
1 2
1 1
1 1
1 1
2 2
1 2
2 2
1 1
2 2
1 2
2 1
1 1
1 2
2 2
1 2
1 1
1 2
1 2
2 2
2 1
1 1
1 1
1 2
2 1
2 1
1 2
2 1
1 2
1 2
1 1
2 1
1 2
1 1
1 2
1 1
1 1
1 2
2 2
2 1
2 2
1 1
2 1
2 1
1 1
1 1
2 1
1 1
2 1
2 2
2 1
1 1
2 1
1 1
1 2
1 2
2 1
2 2
1 1
2 1
2 2
2 2
2 1
2 2
1 1
1 2
1 2
2 2
2 2
2 1
1 2
2 1
2 1
2 1
2 2
2 1
1 2
2 1
2 2
2 2
1 1
1 1
2 2
2 1
1 1
1 2
2 2
2 2
2 1
1 1
2 2
2 1
2 2
1 2
2 2
2 1
2 2
2 2
1 1
2 2
2 1
1 2
2 1
1 2
2 2
1 2
1 1
2 1
2 2
1 2
2 2
2 1
2 2
1 2
1 2
2 1
1 1
1 1
1 1
2 2
1 2
2 2
1 2
1 1
2 2
2 2
1 1
2 1
2 2
2 1
1 1
1 1
2 2
1 1
2 1
1 2
1 2
2 1
2 2
1 1
1 2
1 2
2 1
1 2
2 1
1 2
2 2
1 2
1 2
2 1
2 1
1 1
2 2
2 1
2 1
2 2
1 2
1 2
1 2
2 1
1 1
2 2
2 1
1 2
2 1
2 2
2 2
2 1
2 1
1 1
2 2
2 2
2 1
2 2
2 1
2 2
2 1
1 1
1 2
1 2
1 2
1 1
1 2
1 1
2 1
2 2
2 2
2 1
2 1
2 2
2 1
2 1
1 1
1 2
1 1
2 2
1 2
2 1
2 2
1 1
1 1
2 1
2 1
2 1
1 1
1 1
1 1
2 2
1 2
1 1
1 2
1 1
1 2
1 1
1 2
1 1
1 2
1 2
2 1
1 1
1 1
1 1
2 2
1 1
1 2
1 1
2 1
1 1
2 1
2 2
1 1
1 2
1 2
1 2
2 1
2 2
2 1
1 1
1 1
2 1
1 1
1 1
1 2
2 2
2 1
1 1
2 2
1 1
1 1
1 2
1 1
1 2
1 1
1 1
1 2
2 2
2 1
1 2
1 1
2 2
1 1
1 1
1 1
2 1
1 1
1 2
1 2
1 1
1 2
1 2
2 1
2 2
2 1
2 2
2 1
2 1
2 1
2 2
2 1
1 1
1 1
2 1
1 2
1 2
2 2
2 2
2 1
1 2
1 2
1 1
2 1
2 1
1 2
1 1
2 2
2 2
2 2
2 1
2 1
2 2
1 2
2 1
2 1
2 1
2 1
2 2
1 1
2 2
2 2
2 2
1 2
1 1
1 1
1 1
1 2
2 2
2 1
2 1
2 1
2 1
2 2
2 1
1 1
1 2
1 1
2 2
1 2
2 2
2 2
2 1
2 2
1 2
1 2
2 2
1 2
1 1
1 1
1 1
1 1
2 1
2 1
1 1
2 1
1 1
1 2
2 1
2 2
1 2
2 1
1 2
2 1
1 1
1 2
2 1
2 2
2 2
2 2
1 1
1 1
1 2
2 1
1 2
2 2
2 2
1 2
2 1
2 2
2 1
1 1
1 1
2 1
1 1
2 1
2 1
1 2
2 2
2 2
2 2
2 1
2 1
2 2
2 1
1 1
1 1
1 2
1 2
2 2
1 1
2 2
1 1
2 1
1 1
1 1
1 2
1 2
1 1
1 1
2 1
2 2
2 1
2 1
2 1
2 2
1 1
1 1
1 2
1 1
2 1
1 2
1 1
2 1
1 1
2 2
2 1
2 1
1 2
2 2
1 1
2 2
2 1
1 2
2 1
1 2
2 2
2 2
2 2
1 1
1 2
2 2
2 2
2 1
2 2
1 2
2 2
1 1
1 1
2 2
2 2
1 1
1 1
2 1
2 2
1 1
1 1
1 2
2 2
1 2
1 2
2 1
2 2
1 1
1 1
2 2
1 2
2 2
2 1
1 1
2 1
1 2
1 1
1 1
1 2
2 1
1 1
2 2
1 2
1 2
2 1
2 2
2 1
1 2
1 1
1 1
2 2
1 1
2 1
2 1
1 1
1 1
1 1
2 1
2 1
2 1
1 2
1 2
2 2
1 1
2 1
2 2
1 1
2 2
1 1
2 2
1 2
1 2
2 1
1 2
2 1
2 1
1 1
2 1
2 2
2 2
1 1
2 1
1 1
2 1
2 2
2 1
2 2
1 2
1 2
1 2
1 1
2 2
2 1
2 2
2 1
2 1
2 2
2 2
2 2
2 1
2 1
1 1
1 2
1 2
2 2
1 2
1 2
1 1
2 1
2 2
2 1
1 2
2 1
1 2
1 2
1 2
2 1
1 1
2 2
2 1
1 2
1 2
2 2
2 1
1 1
2 1
2 1
1 1
1 1
1 2
1 1
2 2
1 2
2 1
1 2
1 1
2 1
2 2
1 1
2 1
2 1
2 1
2 1
2 1
1 2
1 1
2 1
2 2
1 2
1 2
1 1
2 1
2 1
2 2
1 1
2 1
1 2
1 1
1 2
1 1
2 1
2 2
2 2
1 2
2 2
2 1
2 2
2 1
2 1
1 2
2 2
1 2
1 1
1 2
1 2
1 2
2 1
2 2
1 1
2 1
2 2
2 1
1 2
1 2
2 1
1 1
1 2
2 1
2 1
1 1
1 2
2 1
2 2
2 1
2 2
1 2
1 2
2 1
2 1
1 1
1 2
2 1
2 1
1 2
2 2
1 2
2 2
1 2
2 2
2 1
1 2
2 2
1 2
2 1
2 2
2 2
1 2
1 1
2 2
1 2
1 2
1 1
2 1
1 2
2 2
2 1
1 1
2 2
2 1
2 1
2 1
1 2
2 1
1 2
2 1
2 1
2 1
2 2
2 2
2 1
2 1
2 1
2 1
1 1
1 1
1 2
1 1
2 1
1 1
2 1
1 2
1 1
2 2
2 1
1 1
1 1
1 1
1 2
1 2
1 2
2 1
2 1
2 2
1 1
2 2
2 1
1 1
1 1
2 2
2 1
1 1
2 1
1 2
2 1
1 2
1 2
2 1
1 1
2 1
1 2
1 1
2 2
2 2
1 2
2 2
2 1
1 1
2 1
2 2
1 2
1 2
1 2
1 2
2 1
1 1
1 2
1 1
1 2
2 2
1 1
1 1
2 2
1 1
1 2
2 1
2 2
1 1
2 2
2 1
1 1
1 2
2 1
1 1
2 1
1 1
1 1
2 1
1 1
2 2
1 1
2 1
1 2
1 2
1 1
2 1
1 1
1 1
1 1
1 1
1 2
2 2
2 2
2 2
1 1
1 2
2 2
1 1
2 1
2 2
2 1
1 1
1 1
2 1
1 2
1 2
2 2
2 2
1 2
2 1
2 1
2 1
2 2
2 2
2 2
1 2
2 2
1 1
2 2
1 1
2 1
1 2
1 2
2 1
1 2
1 1
1 1
2 1
2 2
2 2
2 2
1 2
2 2
1 2
1 1
2 1
1 1
2 1
1 2
1 1
1 1
2 1
1 1
1 2
2 1
1 1
1 2
1 2
2 1
1 1
2 2
2 1
1 2
1 1
1 1
2 2
2 1
2 1
2 2
1 1
2 2
1 1
2 1
1 2
2 2
1 1
2 2
1 1
2 2
1 2
2 1
1 1
1 1
2 2
1 2
2 2
1 1
1 1
2 1
2 1
1 1
2 2
1 2
1 1
2 1
2 2
2 1
2 2
2 1
1 1
2 1
2 1
1 2
1 1
1 1
1 2
1 2
2 2
2 2
2 1
2 1
1 1
2 1
1 1
1 1
2 2
1 1
1 1
1 2
2 2
1 1
2 2
2 1
1 2
2 1
2 2
2 1
2 1
2 2
2 1
1 1
1 2
2 1
2 2
1 2
1 2
2 1
2 2
1 2
2 2
1 1
1 2
2 2
2 1
1 1
1 1
2 2
1 2
1 2
1 2
2 1
2 2
2 2
2 2
2 2
2 1
2 2
1 1
1 2
1 1
2 1
2 1
1 1
1 2
2 2
2 2
2 1
1 1
1 2
2 2
2 1
1 1
2 2
2 2
1 2
2 1
2 1
2 2
2 1
1 2
2 2
2 2
2 2
2 1
2 1
2 1
1 2
2 1
1 1
2 2
2 1
1 1
1 1
1 2
1 2
1 2
2 2
1 2
2 1
2 2
2 2
2 2
1 2
2 2
2 2
1 2
2 1
2 2
1 2
2 1
2 2
2 2
2 2
2 2
2 2
1 1
2 2
1 2
1 2
1 2
1 2
1 1
1 1
2 2
1 1
1 1
2 2
2 2
2 1
2 2
2 2
1 1
1 2
1 1
2 2
2 1
1 2
1 2
2 1
2 1
1 1
1 1
1 2
1 1
2 2
2 2
1 2
2 1
1 1
2 1
2 1
1 1
1 1
1 1
2 2
2 2
2 2
2 2
2 1
2 2
1 1
1 2
2 1
2 2
2 1
1 1
1 2
1 2
1 2
1 1
2 2
2 1
2 2
2 2
2 2
2 1
1 1
1 2
2 2
2 2
1 1
1 2
2 2
1 1
2 2
2 1
1 2
2 1
2 2
2 2
2 2
1 2
2 2
2 1
1 2
1 2
2 1
1 1
1 2
1 2
1 2
1 2
1 2
2 2
2 2
2 2
2 1
2 1
2 1
1 2
2 2
1 1
2 1
2 1
2 2
1 2
1 2
1 2
2 2
2 1
1 1
1 2
1 1
1 2
1 1
2 1
2 2
2 1
2 2
1 2
2 1
1 1
1 2
1 1
1 1
2 2
2 2
2 2
2 2
2 1
1 2
1 2
1 1
1 1
1 1
2 2
2 2
1 2
2 1
1 2
2 2
2 2
2 2
1 1
1 1
1 1
1 2
1 1
1 1
1 2
2 1
1 1
1 2
2 2
1 2
2 1
2 1
2 1
1 2
1 2
2 1
2 2
2 1
1 1
1 1
2 2
2 1
1 1
1 2
1 1
1 1
2 2
2 1
1 1
1 2
1 2
1 1
1 1
1 1
2 1
2 2
2 1
2 2
2 2
1 2
1 2
1 1
1 2
2 1
1 1
2 2
2 2
2 2
1 2
1 1
2 2
1 2
1 2
2 1
1 1
2 1
2 1
2 1
2 2
2 1
1 2
1 2
1 2
1 1
2 1
2 2
1 1
1 2
1 2
2 1
2 2
1 1
1 2
1 2
1 2
1 1
1 1
1 1
2 1
2 1
1 1
2 1
1 2
1 2
1 2
2 2
1 2
2 2
2 1
2 1
2 1
1 2
1 1
2 2
1 1
2 1
1 1
1 2
1 2
2 2
1 1
2 2
2 2
2 2
2 1
1 1
1 2
1 2
2 1
2 2
2 1
2 1
1 1
1 1
1 2
2 1
2 1
2 1
2 1
1 2
1 2
1 2
2 1
1 2
1 2
2 1
1 1
2 2
1 1
1 2
2 2
2 1
2 1
1 1
2 1
1 1
2 1
1 1
1 2
1 2
2 2
1 2
1 2
1 2
1 2
1 1
1 1
2 1
2 1
1 1
2 1
1 2
1 1
1 1
1 2
1 2
2 2
1 1
2 2
2 2
2 2
2 2
1 2
2 1
1 2
1 2
1 2
2 2
1 1
1 1
1 1
2 1
2 2
1 1
1 1
1 2
1 1
2 1
1 1
1 2
1 1
2 2
2 1
1 1
1 2
1 2
2 1
2 1
2 2
2 1
1 2
2 1
2 2
2 1
2 2
2 1
2 2
2 1
1 1
1 1
2 1
1 2
2 2
2 1
2 1
2 2
2 2
2 1
1 1
2 1
2 2
2 2
2 1
1 1
2 1
2 1
1 1
2 1
2 2
1 2
1 1
1 2
1 2
2 1
2 2
2 1
1 1
1 2
1 1
1 1
2 2
2 1
1 2
1 1
2 2
2 1
1 1
2 2
1 2
1 2
1 1
1 2
2 1
2 1
2 1
1 1
1 1
1 2
2 1
1 1
2 2
2 1
1 1
1 2
2 2
2 2
1 2
2 1
1 2
2 1
2 1
1 2
2 1
1 2
1 2
2 2
2 2
2 2
1 2
1 1
1 2
2 2
2 1
2 1
2 1
2 2
1 1
1 2
1 2
1 2
1 1
1 2
1 1
2 2
1 2
2 2
2 1
1 1
2 2
2 1
1 2
1 2
2 1
1 1
1 2
2 2
2 1
1 2
2 2
1 2
1 2
1 1
1 2
2 1
2 2
1 1
2 1
1 2
2 2
2 1
1 1
1 1
1 2
1 1
1 2
1 2
1 1
1 1
1 1
2 2
1 2
2 2
2 2
2 1
1 1
2 2
1 2
1 2
2 1
1 2
1 1
2 1
2 2
1 1
2 2
2 1
2 1
2 2
2 1
2 2
2 2
2 2
2 1
1 1
1 2
1 2
2 1
1 2
1 1
1 2
2 1
2 1
1 1
1 1
1 2
1 2
1 2
1 1
2 2
1 2
2 2
2 1
1 2
1 2
1 1
1 1
1 1
2 2
2 1
2 1
1 1
2 1
2 1
2 1
2 1
1 2
2 2
1 2
1 1
1 2
2 1
1 1
1 2
2 2
1 2
2 2
1 2
1 2
2 1
1 1
1 1
1 2
2 2
1 2
1 2
1 2
2 1
2 2
1 1
1 1
1 1
2 1
2 2
1 2
2 2
2 2
2 2
2 1
2 1
2 2
1 1
2 2
1 2
1 2
2 1
2 1
1 2
1 1
1 1
2 1
2 2
2 1
1 2
1 2
1 2
2 2
2 1
1 1
2 1
1 2
2 1
1 2
1 2
2 1
1 2
1 1
1 2
2 1
1 2
1 2
2 2
2 2
1 2
2 1
1 1
1 1
2 2
2 1
2 2
1 2
2 1
2 1
2 1
2 1
1 2
2 2
2 2
2 2
2 1
1 1
1 2
2 1
2 2
2 2
1 2
2 1
2 2
2 1
2 1
2 2
1 1
2 2
1 2
2 2
2 1
1 1
1 2
2 2
2 1
2 2
2 1
1 2
2 1
1 2
2 2
2 2
1 1
1 1
1 2
1 2
2 1
1 1
2 1
2 1
1 1
2 1
2 2
2 1
1 2
1 2
2 1
2 2
2 2
2 1
2 1
2 1
1 2
1 1
2 2
1 1
2 2
2 1
1 1
1 1
1 2
2 1
2 2
2 2
2 2
2 1
1 2
1 2
2 2
1 1
2 2
1 2
2 1
2 1
2 2
2 2
1 1
2 2
2 1
2 2
2 1
2 2
2 1
2 1
1 1
1 1
1 2
2 2
2 1
1 1
2 2
2 1
2 2
1 1
1 1
1 2
1 2
2 1
2 1
1 2
1 2
1 2
2 1
2 1
2 2
1 2
1 2
1 1
1 2
1 2
2 1
1 1
2 1
1 2
2 1
2 2
1 1
2 2
1 1
2 1
2 1
1 1
1 2
1 1
2 1
2 1
1 2
2 1
1 1
2 1
1 1
1 2
2 2
1 2
1 1
2 1
1 1
1 2
1 2
2 2
2 2
1 1
2 2
2 2
1 2
1 1
1 1
1 1
2 1
1 2
1 2
1 2
2 1
2 1
2 2
2 1
1 2
2 2
1 2
2 2
2 2
2 2
1 2
1 2
1 2
1 2
2 2
2 1
1 2
2 1
1 1
2 1
1 2
1 2
1 1
1 2
1 1
1 1
2 2
2 1
1 1
1 2
2 2
1 1
1 2
2 2
1 2
2 2
1 2
1 1
1 2
2 1
1 2
2 2
2 2
2 1
1 2
2 2
2 1
1 1
1 2
1 2
2 1
2 2
1 2
2 1
1 2
1 1
2 2
1 2
2 1
1 1
1 2
2 1
1 1
1 1
2 2
1 1
1 1
2 1
2 1
2 1
1 2
2 2
2 1
2 2
1 2
2 1
2 2
2 2
2 2
2 2
2 1
2 1
2 2
2 1
2 1
1 2
1 2
2 1
2 2
2 2
2 1
2 1
1 2
1 1
2 2
2 1
2 1
1 2
1 2
1 1
2 2
2 1
2 1
1 2
2 2
1 2
1 2
2 1
2 2
2 2
1 1
1 1
1 1
1 1
1 1
2 2
2 1
2 1
1 1
2 1
2 2
2 1
1 1
1 1
1 2
1 1
2 1
1 2
1 1
1 1
1 2
2 1
1 1
2 1
2 2
2 2
1 1
1 2
2 2
2 1
1 2
1 2
2 1
1 2
2 2
1 2
1 1
2 2
1 1
2 2
1 2
1 1
2 2
1 1
1 2
1 2
2 1
2 1
2 1
1 2
1 2
2 2
1 2
1 2
2 1
2 2
1 1
1 2
2 1
2 1
2 1
2 1
2 2
2 1
1 1
2 2
1 1
1 1
1 2
1 1
1 2
1 2
2 2
1 1
1 2
2 2
1 2
1 1
1 2
1 1
2 2
1 2
1 2
2 1
1 1
2 2
2 2
1 1
2 2
1 2
1 2
1 2
2 2
2 2
1 1
2 2
1 2
2 1
1 1
2 1
2 2
2 2
1 2
1 1
2 2
1 1
2 2
1 1
2 2
2 1
1 1
1 1
1 2
2 1
1 2
1 1
2 2
1 2
1 2
1 2
2 1
2 2
2 1
2 2
2 2
1 1
2 2
1 2
2 1
1 2
2 2
1 1
2 1
2 2
1 1
1 2
1 1
2 2
1 2
2 1
2 1
2 2
2 1
2 1
1 2
1 2
2 2
2 1
1 1
2 2
1 2
1 2
2 1
2 1
1 1
2 2
2 1
2 1
2 2
2 1
1 1
2 2
2 2
2 1
2 1
2 1
1 2
2 2
1 2
1 2
2 1
1 2
1 2
1 1
1 1
2 2
1 1
2 1
1 2
1 2
2 1
2 2
1 2
2 1
1 1
2 2
2 2
2 2
1 2
1 2
1 2
1 1
2 2
1 2
1 2
1 1
1 1
2 2
1 2
2 1
1 2
1 1
2 1
2 1
2 2
2 1
2 1
1 2
2 1
2 1
2 2
2 2
2 2
1 2
2 2
1 2
1 2
1 1
1 1
2 2
1 2
2 2
1 2
2 2
2 1
2 2
1 1
2 1
1 2
1 1
1 1
1 2
2 1
1 1
1 2
1 2
2 2
2 1
1 2
1 1
1 1
2 1
1 2
2 1
2 1
2 1
1 1
2 1
2 1
1 2
1 1
2 2
2 2
1 1
2 2
2 2
2 1
1 1
2 2
2 1
1 1
1 2
2 1
1 1
1 2
1 1
1 2
1 1
1 2
1 2
1 1
1 1
1 1
2 1
1 1
2 2
1 2
2 1
1 1
1 2
1 2
2 1
1 2
1 1
1 1
1 1
2 2
2 1
2 2
1 2
1 1
1 1
2 2
2 1
2 1
2 1
2 2
1 1
2 1
2 2
2 2
2 2
2 2
2 2
2 1
2 2
1 1
1 1
2 2
2 2
2 2
1 2
1 2
2 1
1 1
2 2
2 2
1 1
2 2
2 1
1 2
1 1
1 1
1 1
1 2
2 1
2 1
1 2
1 2
1 2
2 2
2 1
2 1
2 2
2 1
1 2
1 1
1 2
1 1
2 2
1 1
2 2
2 2
1 1
2 1
1 1
1 1
1 1
2 2
1 2
2 1
2 1
2 1
1 2
2 1
2 2
2 1
1 1
1 2
2 1
2 2
1 2
2 1
2 1
1 2
2 1
2 1
1 1
2 1
2 1
2 2
2 1
1 1
2 1
2 1
1 2
2 1
1 2
2 2
1 2
1 1
2 2
1 2
1 1
2 2
1 1
1 1
2 2
1 2
1 2
2 2
1 2
2 1
1 2
1 2
2 1
1 2
1 2
1 2
1 2
1 1
2 1
1 2
2 1
1 2
2 2
2 1
2 2
1 1
1 2
2 1
2 1
1 1
1 1
1 2
1 2
1 2
1 2
1 2
2 2
1 1
1 1
1 1
1 1
2 2
2 2
2 2
1 1
2 2
2 1
2 2
1 1
1 2
1 1
1 1
1 2
2 1
1 2
1 1
1 1
1 1
2 2
1 1
2 1
2 2
2 1
1 2
1 2
2 1
2 2
2 2
2 1
2 2
2 2
2 1
2 1
2 1
2 2
1 1
2 1
1 2
2 2
2 1
1 1
1 2
1 2
1 1
2 2
1 1
2 2
1 2
2 1
2 1
1 2
1 1
1 1
2 1
2 2
2 1
1 2
2 2
2 1
1 2
1 1
2 1
1 1
1 2
1 2
2 1
1 2
1 2
1 1
2 1
2 2
2 2
2 1
1 2
2 2
1 2
2 2
1 1
1 1
2 2
1 2
2 2
1 1
1 1
1 1
2 2
2 2
1 1
1 2
2 2
1 2
2 1
1 1
1 2
2 2
1 2
2 2
2 1
2 1
1 2
1 2
2 1
1 2
1 1
2 2
2 2
2 1
1 2
1 2
2 1
2 1
1 1
2 2
1 1
1 2
2 1
1 2
1 2
2 1
2 2
2 1
1 2
1 2
1 1
1 2
1 2
2 1
1 2
1 2
2 2
2 2
1 1
1 1
1 2
2 1
2 1
2 1
1 1
2 1
1 2
2 2
1 1
1 1
1 1
1 1
2 2
2 2
1 1
2 2
1 1
1 2
2 1
2 1
2 2
2 1
1 2
2 2
1 2
2 2
2 1
2 1
2 2
2 2
2 2
1 2
2 1
1 2
1 2
2 2
2 1
1 1
2 1
2 2
1 2
1 1
2 2
1 2
2 1
1 2
1 1
2 1
2 1
2 1
2 2
2 1
2 1
1 1
1 2
1 1
2 1
1 1
2 1
2 2
2 1
2 2
1 2
2 2
1 1
1 1
1 2
2 1
1 1
1 2
1 2
1 1
1 2
1 2
2 1
2 1
1 1
1 2
1 1
1 2
2 2
1 2
1 1
2 1
2 2
2 1
1 1
2 1
1 2
2 2
2 1
1 2
1 1
1 2
2 2
2 1
2 2
1 1
1 1
2 1
2 2
1 2
2 2
2 1
1 2
1 1
1 1
1 2
1 1
2 1
2 2
1 1
1 1
2 2
1 1
1 1
2 2
2 1
2 1
1 2
2 2
2 1
1 2
2 2
1 2
1 2
1 2
2 1
2 2
1 2
1 2
2 2
1 1
1 1
1 2
1 2
2 2
1 2
2 1
1 2
2 1
1 2
1 1
2 1
1 2
2 2
2 2
2 2
2 1
2 2
1 1
2 2
1 2
2 1
2 1
2 1
1 1
1 2
1 1
2 1
1 2
2 2
1 1
2 1
2 2
2 1
2 1
1 1
2 1
1 2
1 1
2 1
1 2
1 2
1 2
1 1
1 2
2 1
1 2
2 1
1 1
1 1
1 2
2 2
2 2
1 1
2 1
1 2
1 1
2 1
2 2
1 2
1 1
2 2
1 2
2 2
1 2
2 1
1 2
1 2
2 1
1 2
1 2
2 2
2 2
2 1
1 1
2 1
1 1
2 2
2 2
1 2
1 1
2 1
1 1
1 1
2 1
1 2
1 1
1 2
1 1
1 1
2 1
2 2
1 2
1 1
1 1
1 1
2 2
1 2
2 1
2 2
1 2
1 1
2 2
1 2
2 1
1 1
2 1
2 2
1 2
1 2
2 2
2 2
1 2
1 1
1 2
2 2
2 1
1 2
2 2
1 1
1 1
2 2
1 2
1 1
1 2
2 1
2 2
1 2
2 2
2 2
2 2
1 1
2 2
1 1
1 1
1 2
1 2
1 2
1 2
1 2
1 1
2 1
1 1
2 2
1 2
2 1
2 2
1 1
2 1
1 1
1 1
2 1
2 1
1 1
1 1
1 2
1 2
1 1
1 1
1 2
1 1
1 2
2 2
1 1
1 1
2 2
1 1
1 1
2 2
1 1
2 1
1 1
1 2
2 2
1 1
1 1
1 1
1 2
1 1
2 1
2 2
2 1
2 2
1 2
2 1
1 2
2 2
2 2
1 2
1 1
1 2
2 2
2 2
1 1
1 1
1 1
2 1
2 1
2 1
1 1
1 1
1 2
2 1
1 2
1 2
2 1
1 2
2 1
2 2
2 2
2 2
2 2
2 1
2 1
2 2
1 1
2 1
1 1
1 1
1 2
2 1
2 1
2 1
1 1
2 1
1 2
1 2
2 1
2 1
2 2
1 2
2 2
1 2
1 1
1 2
1 2
1 2
2 1
2 1
1 2
1 1
2 2
1 2
2 1
1 2
1 2
1 1
1 2
2 1
2 1
1 2
2 1
1 2
1 1
1 2
2 1
2 2
1 1
2 1
1 1
1 1
1 2
2 2
2 1
1 1
2 2
2 1
1 2
2 2
1 1
2 2
2 1
1 2
2 2
1 1
2 1
1 2
1 1
1 2
2 2
1 2
2 1
2 1
2 1
2 2
2 1
1 1
1 2
2 1
1 1
1 1
1 2
2 2
1 2
1 2
2 2
1 2
1 1
1 1
1 1
2 1
2 2
2 1
2 2
2 1
2 2
2 2
1 1
1 1
2 2
1 1
2 2
1 1
2 2
1 1
1 2
2 1
1 2
2 1
1 2
2 1
2 1
1 1
1 1
2 2
1 1
2 2
1 2
2 1
1 2
2 1
1 1
1 2
1 2
2 2
1 2
2 2
1 1
2 2
2 2
1 1
2 1
2 1
2 1
2 2
1 1
1 1
2 2
2 1
1 2
1 2
2 2
1 2
1 1
1 1
1 1
2 2
2 2
2 2
1 2
1 2
2 2
2 1
2 1
1 2
1 1
1 2
1 1
1 2
1 2
2 2
2 2
2 1
1 2
1 1
2 1
2 1
2 2
2 1
1 2
2 2
1 2
1 2
1 2
1 1
1 2
2 2
2 2
2 2
2 1
1 2
1 1
2 1
2 2
2 2
1 1
2 1
1 2
1 1
1 2
2 2
2 1
2 2
2 2
1 1
1 1
1 2
2 1
1 2
2 1
2 1
2 1
2 2
2 2
1 1
1 1
1 1
1 1
2 1
1 2
2 1
2 2
1 2
2 1
2 2
1 1
2 1
1 2
1 1
1 1
2 1
1 1
2 1
1 1
1 2
1 1
2 1
1 1
2 1
2 1
1 2
2 2
1 1
2 2
2 2
2 1
1 1
2 2
2 2
2 1
2 1
2 2
2 1
1 1
1 2
2 1
1 1
1 1
2 2
2 1
1 2
2 1
2 1
2 1
1 1
2 2
2 2
2 2
1 1
2 2
1 1
1 1
1 2
2 2
1 2
1 2
2 2
2 2
1 2
1 2
1 1
2 2
1 1
2 1
1 1
1 2
1 1
1 2
1 1
2 1
2 1
2 2
1 1
2 2
2 2
2 1
2 1
2 2
1 2
1 1
1 2
1 1
1 2
2 1
2 2
1 1
2 1
1 1
1 1
1 1
2 1
2 1
2 1
2 1
1 1
1 1
1 1
2 1
2 1
2 2
2 2
2 2
1 2
2 1
1 1
2 2
1 2
1 2
1 1
1 2
1 2
1 2
1 1
1 1
2 1
2 2
2 1
2 2
2 1
1 1
1 2
1 1
1 1
2 2
2 1
2 2
2 2
1 1
1 2
1 2
2 1
2 1
1 1
1 2
1 2
2 2
2 2
1 2
2 2
1 1
1 1
1 1
1 2
1 1
1 2
1 1
1 1
1 1
2 1
1 1
2 2
1 2
1 1
1 1
2 2
2 2
1 1
1 2
2 1
2 2
1 1
1 2
1 2
1 2
2 1
2 1
1 2
1 1
1 1
2 2
1 1
1 1
1 2
2 1
1 2
2 1
1 2
1 2
1 2
1 1
2 1
1 2
2 2
2 1
1 1
1 1
1 1
2 1
1 2
1 1
2 1
1 1
1 1
2 2
1 1
1 2
2 1
1 2
1 2
2 1
1 2
2 2
2 2
1 1
2 2
2 2
1 1
1 1
2 1
1 2
2 2
2 1
2 2
2 1
2 2
2 2
1 2
2 1
2 1
2 2
2 1
2 1
2 2
2 2
2 2
2 1
1 1
1 2
1 2
1 2
2 1
2 2
2 2
2 1
1 1
2 1
2 2
2 2
1 1
1 1
1 1
1 2
2 1
1 2
1 2
2 2
1 1
1 1
2 2
1 2
1 1
1 1
2 1
1 2
1 1
1 1
1 1
1 1
2 2
2 1
1 2
2 2
2 1
2 2
1 1
1 1
1 2
2 2
2 1
2 1
1 2
2 1
1 1
2 2
1 2
1 2
1 2
2 2
1 2
1 1
2 1
1 1
2 2
2 2
1 2
1 2
1 2
2 1
1 2
2 2
2 2
1 2
2 2
2 1
1 2
1 1
1 2
1 2
2 2
1 2
1 1
1 1
1 2
2 1
1 1
2 1
1 1
1 2
1 2
1 1
2 1
2 1
1 1
2 2
2 1
1 2
2 1
1 1
1 2
1 2
1 1
2 2
2 1
2 1
1 2
1 1
1 2
1 2
2 2
2 2
2 2
1 1
1 1
2 2
2 1
1 1
1 2
1 2
2 2
1 1
1 2
1 1
2 2
1 2
2 1
2 1
1 1
1 1
1 2
1 2
2 2
1 2
2 2
1 2
2 2
1 1
2 1
2 2
1 2
2 2
2 2
2 2
1 2
2 2
1 1
1 2
2 2
2 2
2 2
2 2
1 2
2 2
2 2
2 2
1 1
2 2
1 2
2 1
1 2
2 2
2 1
2 2
2 2
1 2
2 2
1 2
2 1
2 1
1 2
1 2
2 2
2 2
1 1
1 2
2 1
1 1
2 1
2 2
2 2
2 2
2 2
2 2
1 1
2 2
1 2
2 1
1 2
1 2
2 1
2 1
2 1
1 1
1 1
1 2
2 1
1 1
1 1
2 2
2 2
2 2
2 1
2 1
1 2
1 2
2 1
2 1
1 1
1 2
1 2
1 1
1 2
2 1
2 2
1 1
1 1
1 2
2 1
2 1
1 2
2 1
2 2
1 1
2 1
1 1
1 1
1 2
2 2
2 2
1 2
1 2
2 1
1 2
1 2
1 2
1 1
1 2
2 2
2 1
2 2
2 1
2 2
1 2
2 1
2 1
2 1
1 1
2 2
2 2
2 1
1 2
2 1
1 2
1 1
1 1
1 1
1 2
2 2
2 2
1 1
1 1
2 2
1 2
2 2
1 1
1 1
2 1
1 1
2 2
2 1
1 2
1 2
2 2
2 2
1 2
1 1
1 1
2 2
1 2
1 2
2 2
1 1
2 2
2 2
1 2
1 2
2 1
1 2
2 1
1 1
1 1
2 2
2 2
2 1
2 1
1 2
1 1
1 1
2 2
2 1
2 1
1 1
2 2
2 1
1 1
1 2
2 1
2 1
2 2
1 1
1 1
1 2
1 2
1 2
1 1
1 2
2 1
2 1
1 2
1 2
1 2
1 2
2 2
2 2
1 2
2 1
2 1
2 2
1 1
2 2
1 1
1 1
1 1
2 2
1 2
1 2
1 2
1 1
1 1
2 2
1 2
2 1
1 1
2 2
1 2
1 2
1 2
2 1
1 2
1 1
1 1
2 1
1 2
2 1
1 2
2 2
1 1
1 2
1 2
1 1
2 2
1 1
1 2
1 2
1 2
1 1
2 2
2 1
1 1
2 2
2 1
2 2
1 2
2 1
1 2
2 2
2 2
1 2
2 1
1 2
2 2
2 1
2 2
2 2
2 2
2 2
2 2
2 2
2 1
1 1
1 2
1 1
2 1
1 1
1 1
1 1
2 2
1 2
1 1
1 1
1 1
2 1
2 2
1 2
2 1
2 2
2 1
2 2
2 1
2 1
1 1
1 1
2 1
1 1
2 1
1 2
1 1
2 2
2 1
1 2
1 2
1 1
2 1
2 2
1 2
1 2
2 2
2 2
2 1
1 2
1 2
2 2
2 2
2 2
2 2
2 1
1 1
2 1
1 2
2 2
1 1
1 1
2 1
1 1
2 2
2 1
1 2
2 1
1 1
2 1
1 1
2 1
1 1
2 1
1 1
1 1
1 1
2 1
2 1
2 1
1 1
2 1
2 1
2 2
1 1
1 2
1 1
1 2
1 2
1 1
2 2
2 1
2 2
1 2
1 1
2 1
1 1
1 1
1 1
2 2
2 1
1 1
2 2
1 1
1 2
1 2
1 1
1 2
2 1
2 1
1 2
1 1
2 1
2 1
1 1
1 1
1 1
2 1
1 1
2 2
1 1
2 2
2 1
1 2
2 2
1 2
2 2
2 1
2 1
1 1
2 2
1 2
1 2
1 2
1 2
2 1
2 2
2 1
1 1
2 1
2 2
1 1
2 2
1 2
1 2
2 1
1 2
1 2
2 1
2 1
2 1
2 2
2 2
1 1
1 2
2 1
2 1
2 1
1 1
1 1
2 2
2 1
1 2
1 1
2 1
1 2
2 1
2 1
1 1
1 1
1 2
1 1
2 1
1 2
1 1
1 2
2 2
2 1
2 2
1 2
2 1
1 1
1 1
1 1
2 2
1 2
2 1
1 2
2 2
1 2
2 2
1 2
1 2
1 2
2 2
2 2
1 1
2 2
1 1
2 1
1 1
1 1
1 1
1 2
2 2
1 2
1 1
2 2
1 2
2 2
1 1
2 1
2 1
1 1
2 1
1 2
2 2
1 1
1 2
1 2
1 1
1 1
1 2
2 2
1 2
1 2
2 2
2 2
2 2
1 1
2 2
2 1
2 2
2 1
2 1
1 2
1 1
2 2
2 2
1 2
2 2
1 1
2 2
1 1
1 2
1 2
2 1
2 2
2 1
2 2
2 2
2 1
2 1
1 2
2 1
2 1
2 1
2 1
1 1
1 2
1 2
1 2
1 2
2 2
2 1
1 2
1 1
2 2
1 2
2 2
1 2
2 1
2 1
1 1
1 2
2 1
1 1
1 2
2 2
1 1
1 2
1 2
1 2
2 2
1 1
1 1
1 1
1 1
2 1
1 2
1 2
1 1
2 1
1 2
1 1
1 2
1 2
1 2
2 2
1 2
2 1
2 1
1 2
2 1
1 1
1 2
2 1
2 1
2 2
2 2
1 1
2 2
2 2
2 2
2 1
1 1
1 2
2 1
1 2
1 2
2 1
2 2
1 2
2 2
2 2
2 1
2 1
1 2
1 1
1 2
1 1
1 2
2 2
1 2
1 1
1 1
1 2
1 1
2 1
2 2
1 1
1 2
1 1
1 2
2 1
2 1
2 1
2 1
1 2
1 2
2 2
1 2
1 2
2 1
2 2
2 2
2 1
2 2
2 1
1 2
1 1
1 1
2 1
1 2
2 2
2 2
2 2
1 1
1 2
1 1
1 2
2 2
2 2
1 2
2 1
1 2
2 1
2 2
2 1
2 2
2 1
2 1
2 2
1 2
1 2
1 2
2 2
2 2
2 2
1 2
2 1
1 2
1 1
1 2
2 2
2 1
2 1
1 1
2 1
2 2
1 2
1 2
1 1
1 1
1 2
2 1
1 2
2 1
2 1
2 1
2 2
2 1
2 2
2 1
1 2
2 1
1 1
1 2
1 2
1 2
1 2
1 1
2 2
2 1
1 2
1 1
2 1
2 1
1 1
2 1
2 1
1 2
1 1
2 2
2 2
2 2
2 2
1 2
2 1
2 1
2 2
2 2
1 2
1 1
2 2
1 2
2 1
1 1
2 1
1 2
2 1
1 2
2 2
2 2
2 1
1 1
1 2
2 2
1 2
1 2
1 1
2 2
2 2
1 2
1 2
1 2
2 2
2 1
1 1
2 2
2 1
2 1
2 2
1 1
2 1
2 2
2 1
1 2
2 1
2 2
1 2
2 2
2 2
2 2
2 1
1 1
1 1
1 2
1 1
2 1
1 1
1 1
2 2
2 2
2 1
1 2
1 2
1 1
1 2
2 1
1 2
2 1
1 1
2 2
1 1
2 1
2 1
1 2
1 1
2 2
1 1
1 2
1 1
1 2
2 1
1 2
1 2
2 1
2 1
2 2
2 2
2 1
1 2
2 1
2 1
2 1
1 1
1 2
2 2
2 2
2 1
1 2
2 2
2 2
1 2
2 1
2 2
1 2
1 2
1 1
1 1
2 1
2 1
1 2
2 2
1 2
2 2
1 1
1 2
1 1
1 1
1 1
1 1
2 2
1 1
1 1
1 2
1 2
2 2
1 1
2 2
2 1
1 2
1 1
1 1
1 1
2 1
2 1
1 2
1 2
2 1
2 2
1 1
2 2
1 1
2 2
1 2
2 2
2 2
1 1
1 1
1 2
2 2
1 2
1 2
1 1
1 2
1 2
1 1
2 1
1 2
2 1
1 1
2 1
1 2
1 2
2 2
2 1
2 2
1 1
1 2
1 2
1 2
2 1
1 2
1 2
1 2
1 2
1 1
1 2
1 1
2 1
1 2
1 2
2 1
2 1
2 2
1 2
2 2
2 1
2 1
2 2
1 2
2 2
2 2
1 2
1 1
1 2
1 2
2 2
2 1
1 2
1 1
2 2
1 1
2 1
1 1
2 1
2 2
1 1
2 2
2 1
2 1
1 1
1 2
2 1
2 1
2 2
2 1
1 2
2 2
2 1
2 2
1 2
1 2
1 1
1 2
2 1
1 2
2 2
1 2
1 1
2 2
1 2
1 2
1 2
2 2
2 1
1 2
2 1
1 2
1 1
1 1
2 1
1 1
1 1
2 1
1 1
1 1
1 2
2 2
1 2
2 1
2 2
2 2
2 2
1 1
2 2
1 1
1 1
2 1
2 1
2 2
1 2
2 1
2 1
2 1
1 1
2 1
2 2
1 1
2 2
1 1
2 2
1 2
2 2
1 1
2 1
1 1
2 1
2 2
2 1
2 1
2 1
1 2
2 2
1 2
2 2
1 1
1 1
2 2
2 1
2 2
1 1
1 1
1 1
1 1
2 1
1 2
1 2
1 2
1 1
1 2
1 2
2 2
1 1
1 1
2 2
1 2
1 1
2 1
2 1
2 1
2 1
2 1
2 1
1 2
2 2
1 2
1 2
1 1
1 2
2 2
2 1
2 1
2 1
2 1
1 1
2 2
1 2
2 1
2 2
2 2
1 1
1 2
1 2
1 2
1 2
1 2
1 1
1 2
1 2
1 1
2 1
1 2
2 1
2 1
2 2
1 1
2 1
1 1
1 2
1 1
1 2
1 1
2 2
2 2
1 2
2 2
1 2
1 1
1 1
1 1
2 1
2 2
1 2
2 2
1 1
1 1
1 2
2 2
2 2
2 1
1 2
1 2
2 2
1 2
1 2
1 1
1 1
1 1
2 1
1 2
2 2
2 2
1 1
2 1
2 1
2 1
2 2
1 2
1 1
2 1
1 2
2 1
1 2
2 1
2 1
1 2
1 1
1 2
1 2
2 2
2 1
2 2
2 2
1 2
1 2
2 1
1 2
1 2
1 1
1 2
2 1
1 1
2 2
2 2
1 2
2 2
1 2
1 1
1 2
1 1
1 1
2 2
2 2
2 1
2 1
2 2
2 2
1 2
2 1
1 2
1 1
1 1
2 1
1 1
1 1
2 1
1 2
2 2
1 2
1 1
2 2
2 2
1 2
1 1
1 1
2 1
1 1
2 1
2 2
1 1
1 2
2 2
2 2
2 1
2 1
2 1
1 2
1 1
1 1
2 2
2 1
2 2
2 2
1 1
2 2
2 1
2 2
1 1
2 2
1 2
1 1
2 1
1 2
2 2
1 2
1 1
1 2
1 1
1 1
2 1
1 2
1 2
1 1
1 1
1 2
1 1
1 2
2 2
2 2
1 1
1 2
2 1
2 1
2 2
2 1
1 1
1 1
1 1
2 2
1 2
2 1
2 2
1 2
1 2
1 2
2 1
2 2
1 2
2 1
1 2
1 1
2 2
2 1
2 2
1 2
2 1
1 2
1 2
1 1
1 2
2 2
2 2
1 1
2 1
1 2
2 1
2 1
1 2
1 2
2 1
1 1
1 1
2 2
1 1
1 1
1 1
1 2
2 1
1 2
1 2
2 2
2 1
1 2
1 2
2 2
1 1
1 1
1 1
1 1
2 1
1 1
2 1
1 2
1 2
1 2
1 1
1 1
2 1
1 2
2 2
2 2
2 1
2 2
2 2
1 1
1 1
1 2
2 2
2 1
1 2
1 1
1 1
1 2
2 2
1 2
2 2
1 1
1 2
2 1
1 1
2 1
2 1
2 2
1 1
2 1
1 1
1 2
2 1
1 1
1 1
2 2
1 1
1 2
2 1
1 2
2 2
2 1
2 2
2 1
1 1
1 2
1 1
2 1
1 1
1 2
2 2
2 1
2 2
2 2
1 2
1 1
2 2
1 2
1 2
2 2
2 1
1 2
1 1
2 1
2 2
2 2
1 1
2 1
1 2
1 1
2 1
2 2
1 2
2 1
2 1
1 1
2 2
1 1
2 1
2 1
2 2
2 2
2 1
2 2
2 2
1 2
2 2
2 2
1 1
1 1
2 2
2 1
2 2
2 1
1 1
2 1
1 2
2 1
1 2
2 2
2 2
1 2
2 2
2 2
1 1
1 1
1 1
1 1
2 1
2 1
1 2
1 1
2 1
1 2
1 1
2 2
2 2
2 1
1 1
1 2
2 2
1 2
1 1
1 2
1 1
1 2
1 1
2 2
1 2
1 1
2 2
2 1
1 2
2 2
2 2
1 2
2 1
2 2
1 2
2 1
1 2
1 1
1 2
1 2
1 2
2 1
2 2
1 1
2 2
1 1
1 1
2 1
1 1
1 1
1 1
1 2
1 2
1 2
2 1
1 1
2 2
2 1
1 1
2 2
2 1
1 1
2 1
2 1
1 1
2 1
1 1
1 2
1 2
1 2
2 1
2 2
1 1
1 1
1 1
1 2
1 2
2 2
1 1
2 2
2 2
1 2
1 1
2 2
1 2
2 1
2 2
2 1
1 2
2 2
1 1
2 1
1 1
2 1
1 1
2 2
1 1
1 2
1 1
1 2
1 1
1 2
1 2
1 2
1 2
2 2
1 1
1 2
2 2
2 2
1 1
2 2
2 2
1 1
1 1
1 2
1 1
2 1
1 2
1 1
2 1
1 1
2 1
2 2
1 1
2 1
1 1
2 2
2 2
2 2
1 1
2 2
2 1
1 2
2 1
2 1
2 1
2 1
2 2
2 1
1 2
1 2
2 1
1 1
2 1
2 1
2 1
1 2
2 2
2 2
2 1
1 2
1 1
1 2
2 1
2 2
1 2
1 1
1 1
1 1
2 1
1 1
1 2
1 2
1 2
1 1
2 1
1 2
1 2
1 2
2 1
2 1
1 2
2 1
2 2
1 1
2 1
1 1
2 1
1 2
2 2
1 2
1 2
1 1
1 2
2 2
2 1
2 2
2 1
1 1
2 2
2 1
2 2
2 1
1 1
2 2
1 2
1 2
2 1
2 2
2 1
2 1
1 1
1 1
1 2
1 1
2 2
2 2
2 1
1 1
2 2
1 2
2 1
2 1
1 1
1 2
2 2
2 2
1 2
2 1
1 2
1 1
1 1
2 2
2 1
1 1
1 2
2 1
2 2
1 2
1 2
2 2
1 1
1 2
1 2
2 2
2 2
1 2
2 2
2 2
1 1
1 1
1 2
2 2
1 2
1 1
1 1
2 2
1 1
2 1
1 1
2 2
2 2
1 1
1 1
1 2
2 1
2 2
2 2
2 2
1 1
1 2
1 1
1 1
2 1
1 2
2 1
2 1
1 1
2 1
2 1
2 1
1 1
2 1
1 2
2 2
1 2
2 1
1 2
2 2
2 1
2 1
1 2
1 1
2 2
2 1
1 1
2 1
2 1
1 2
2 2
1 2
2 2
1 2
1 2
2 1
1 2
2 1
2 2
1 1
2 1
2 1
2 1
1 1
2 1
1 1
2 1
1 1
1 1
2 1
1 2
2 1
2 1
1 2
2 1
1 2
1 1
2 1
1 1
1 1
1 1
2 2
1 1
1 1
2 1
1 1
1 2
2 1
1 2
2 2
2 1
2 1
2 1
1 1
2 2
1 2
2 1
2 2
2 1
2 1
2 2
1 2
1 1
2 1
2 2
2 2
1 1
1 2
2 1
1 1
2 2
2 1
1 1
2 2
2 1
1 1
2 1
2 2
1 1
2 2
2 2
2 2
1 1
2 1
1 1
1 2
1 2
2 2
2 2
2 2
1 1
2 2
1 2
2 1
1 2
1 1
1 2
2 2
2 1
1 1
1 2
1 2
1 1
2 1
2 1
2 1
2 1
2 2
2 2
1 2
2 2
2 1
2 1
1 2
2 2
1 2
2 2
2 2
1 1
2 1
1 1
2 1
1 2
1 2
1 2
2 2
2 2
1 1
1 1
1 1
1 2
2 2
1 1
2 2
2 2
2 2
2 1
1 1
1 2
1 2
1 2
1 1
2 2
2 2
1 1
1 1
1 2
2 2
2 1
1 2
2 2
2 1
2 2
2 1
2 2
1 1
2 1
1 1
2 1
2 1
2 2
1 2
2 2
2 1
2 1
2 1
2 1
1 2
2 2
1 1
2 2
2 1
1 1
2 2
2 1
1 2
2 1
2 1
2 2
1 1
1 2
1 1
1 1
1 2
2 2
1 1
1 2
2 1
2 1
1 2
2 2
2 2
1 1
1 1
2 1
2 1
2 1
1 2
2 2
1 2
1 2
2 1
1 2
1 1
2 1
1 2
1 1
1 1
2 1
2 1
2 2
2 1
1 2
1 1
2 1
2 2
1 2
2 2
1 2
2 1
1 2
2 1
2 1
1 2
1 1
1 1
1 2
1 1
1 1
1 2
2 1
2 1
2 2
2 1
1 2
2 1
2 1
1 1
2 2
1 1
2 1
2 1
1 2
1 2
1 2
2 2
1 2
2 1
1 1
2 1
2 2
2 1
2 1
1 1
1 2
2 2
1 1
2 2
1 1
1 2
1 1
1 2
2 1
2 1
2 2
1 1
1 1
2 2
2 2
2 2
2 1
1 2
2 1
1 1
1 1
1 2
2 2
1 2
2 2
1 1
2 2
2 2
1 2
1 1
2 2
2 1
2 1
2 2
1 2
1 2
2 2
2 1
1 2
2 2
2 1
1 1
1 2
2 2
2 1
2 1
1 1
2 1
2 2
2 1
2 1
2 1
2 1
1 2
1 2
1 1
1 2
1 1
1 1
2 2
2 1
2 1
2 1
1 1
1 2
1 1
2 2
2 2
1 1
2 1
1 2
2 2
2 2
2 2
1 2
1 1
2 1
2 2
2 2
2 2
2 2
1 1
1 2
2 2
1 1
2 2
1 2
1 2
1 1
1 1
1 2
2 2
2 1
2 1
2 1
2 2
2 1
1 2
2 2
1 1
1 1
1 1
1 2
1 1
1 2
2 1
2 1
1 1
1 2
2 2
2 1
2 1
1 2
2 2
2 2
1 1
1 2
1 2
1 2
1 2
1 1
1 1
2 2
1 1
2 2
1 1
2 2
2 2
2 1
1 2
2 1
1 2
1 1
1 2
1 1
1 2
1 1
1 2
1 2
1 1
2 1
2 1
1 2
1 1
2 1
2 2
1 1
1 2
1 1
2 2
2 1
2 2
2 2
2 1
1 2
1 1
2 1
2 1
1 1
2 1
2 2
2 2
1 1
1 2
1 2
2 2
2 1
2 1
1 2
2 1
2 1
2 2
2 1
1 2
1 2
1 1
2 1
2 2
2 1
1 2
2 2
2 1
1 2
2 2
2 2
1 1
2 1
2 2
1 2
1 2
2 1
2 2
2 1
1 2
1 1
2 2
2 1
2 1
1 2
2 2
2 1
2 1
1 1
2 2
2 1
2 1
2 2
2 1
2 1
1 1
1 2
2 1
1 2
2 2
2 2
1 1
2 2
1 1
1 2
2 2
2 2
1 2
2 1
1 2
2 1
2 2
2 2
1 1
2 2
2 1
1 1
2 1
2 2
2 2
1 2
1 1
2 1
2 1
1 1
1 1
1 1
1 2
1 1
2 2
1 2
2 2
2 2
1 2
2 1
1 1
2 1
1 2
2 1
2 1
2 1
1 1
2 1
1 1
2 2
2 1
2 1
2 1
1 1
1 2
1 1
1 1
2 1
2 2
2 2
1 1
1 1
1 1
1 2
1 2
1 2
2 2
1 2
2 1
1 1
2 1
2 2
2 1
1 1
1 2
1 1
2 1
2 2
2 2
2 1
1 2
1 1
2 2
1 2
1 1
2 2
2 2
1 2
2 1
1 1
1 2
2 2
2 2
1 1
2 2
2 1
1 1
1 1
1 1
1 1
1 2
1 1
2 2
1 1
2 2
1 1
2 1
1 2
2 2
2 1
2 1
2 2
1 2
1 1
1 1
2 1
1 2
2 1
1 2
1 2
1 1
1 1
1 2
1 2
1 1
1 2
2 1
1 1
1 2
1 2
1 1
2 2
2 1
1 1
1 2
2 2
1 1
1 1
2 2
2 2
1 2
1 2
1 2
2 1
2 1
1 1
1 1
2 2
1 1
1 1
1 2
2 2
2 1
1 2
1 1
2 2
2 1
2 2
2 1
1 1
2 1
1 2
2 1
1 1
2 2
2 2
1 2
2 1
2 1
2 2
2 2
1 2
2 1
2 2
2 2
1 1
1 1
2 2
1 1
2 1
1 1
2 2
1 1
2 1
1 1
1 2
1 2
2 2
1 1
2 2
2 2
1 1
1 2
2 1
2 1
1 1
2 1
1 1
1 2
2 2
2 2
2 1
2 1
1 2
2 2
2 2
2 2
1 2
2 2
1 1
2 2
2 1
1 2
2 1
1 2
2 1
1 1
2 1
2 2
2 2
1 1
2 2
1 1
1 2
2 2
1 1
1 2
2 2
2 2
2 2
1 1
2 2
1 2
2 2
2 2
1 1
1 1
2 2
1 2
2 2
2 1
2 1
1 2
1 1
2 1
2 2
1 1
1 1
2 1
2 1
1 2
1 1
2 2
2 2
2 2
1 1
1 1
1 2
1 1
1 1
2 1
2 2
1 2
1 2
2 1
1 1
2 2
1 1
1 2
2 1
2 1
2 2
2 1
2 2
1 2
1 2
2 2
1 2
2 1
1 1
1 1
1 2
1 2
1 2
2 1
2 2
2 2
1 1
1 2
2 1
2 2
2 2
1 2
2 2
2 1
1 2
1 1
1 2
1 2
2 2
2 2
1 2
1 1
1 1
1 1
1 2
1 2
1 1
2 1
2 1
2 1
2 2
2 1
2 2
1 1
2 2
2 1
1 1
1 1
1 1
1 2
2 1
1 1
1 2
2 2
1 2
1 1
2 1
2 1
1 1
1 1
1 1
1 2
1 1
1 2
1 1
1 2
2 2
1 2
1 2
2 2
2 1
2 1
2 2
2 2
2 2
2 2
1 2
2 2
2 1
1 1
1 2
1 1
2 1
1 1
1 1
1 2
1 1
2 2
2 1
2 1
1 2
1 1
1 1
2 1
1 1
2 2
2 2
2 2
2 2
2 2
1 2
1 1
2 2
1 2
2 1
1 2
2 1
2 2
2 2
1 1
2 2
1 1
2 2
2 2
1 1
2 1
2 2
1 1
2 1
1 1
1 2
2 2
2 2
2 2
1 2
2 1
1 1
2 1
1 1
1 1
1 2
1 2
1 1
2 2
2 2
2 2
1 2
1 2
2 1
2 2
1 2
1 1
2 1
1 1
2 2
1 1
2 1
2 1
1 2
2 1
2 1
1 1
2 1
2 2
2 2
2 1
1 1
1 1
2 2
1 2
2 2
1 1
1 2
1 1
1 1
2 1
1 2
2 1
2 1
2 1
1 1
1 1
2 2
2 2
2 2
1 1
1 2
1 2
2 1
1 1
1 1
2 1
1 2
1 1
2 2
2 2
1 2
1 2
1 1
1 1
1 2
2 2
2 1
1 2
2 1
1 1
1 2
2 2
2 1
2 2
1 2
2 2
2 2
2 2
2 2
2 1
2 2
1 2
1 2
1 1
1 2
2 2
2 2
2 2
1 1
1 2
1 1
2 2
2 2
1 1
2 2
1 1
1 1
1 2
2 2
2 1
1 2
2 2
2 1
2 1
2 1
2 2
1 1
1 1
1 2
2 2
2 1
1 2
1 2
2 2
2 1
1 1
1 2
2 2
1 2
2 2
2 2
1 1
1 2
2 1
2 2
2 1
1 1
2 1
2 1
2 2
2 1
2 1
1 2
1 1
2 1
2 1
2 2
1 1
1 2
2 1
1 2
1 2
2 1
2 2
2 2
1 2
2 2
1 1
2 1
1 2
1 1
2 2
1 2
2 1
1 1
2 2
2 2
1 2
1 1
2 1
2 2
2 2
1 1
1 2
2 1
1 2
1 1
1 2
2 1
1 1
1 1
1 2
1 1
1 1
2 2
2 1
2 2
2 1
2 1
1 2
2 2
2 1
1 1
2 1
1 1
2 2
2 1
1 1
1 1
1 1
2 2
1 1
2 1
1 1
1 2
2 2
1 1
1 1
1 1
2 1
1 1
1 1
1 1
2 1
2 1
2 2
1 2
2 1
2 1
2 1
2 2
2 2
1 1
2 1
1 2
1 2
2 1
1 1
2 1
1 2
1 2
2 2
2 2
1 1
1 1
2 2
2 1
2 2
2 1
2 2
1 1
1 2
2 1
1 1
1 2
2 1
1 1
1 1
2 2
1 1
1 1
1 1
1 2
1 2
1 2
1 2
2 1
2 2
2 2
2 2
2 2
1 2
1 1
1 2
1 2
1 1
1 1
2 1
1 2
1 2
2 2
1 1
2 1
1 2
2 2
2 2
2 2
2 1
1 2
2 2
1 2
1 1
1 1
2 1
2 1
1 1
1 2
2 2
1 1
2 2
2 2
2 2
1 1
1 2
2 1
1 1
1 1
2 1
1 2
2 2
2 2
2 2
2 2
2 1
1 2
2 2
1 1
1 1
2 1
1 2
1 2
2 2
2 1
1 2
2 2
1 2
1 1
2 2
1 1
2 1
1 2
2 2
2 2
2 2
2 2
1 1
1 2
2 2
1 1
2 2
1 2
1 1
1 2
1 2
2 1
1 1
1 1
2 1
1 1
1 1
1 2
2 2
2 1
2 1
1 2
1 2
1 2
1 2
1 1
1 1
1 1
1 1
2 1
2 1
1 2
1 1
1 2
1 1
1 2
1 1
2 2
2 2
2 2
2 2
2 2
2 2
2 2
1 2
1 1
2 1
1 2
1 2
1 1
1 2
1 1
1 2
1 2
2 2
2 2
1 1
1 2
1 1
2 1
1 1
2 2
2 2
2 1
1 2
2 1
1 1
1 2
2 1
1 2
2 1
1 1
2 2
1 2
2 1
2 1
1 1
2 2
2 1
1 2
2 1
2 2
1 1
1 2
2 1
1 1
1 2
1 1
2 1
1 2
2 2
1 1
2 2
1 2
2 1
2 1
2 1
1 1
2 1
1 1
2 1
2 2
1 1
2 2
1 2
1 2
1 2
1 2
2 1
2 1
1 2
2 2
2 1
1 2
1 1
2 1
2 2
1 2
1 2
1 1
2 2
1 1
1 2
1 1
1 1
2 1
2 2
1 2
1 1
1 2
1 1
2 2
2 2
1 1
1 2
2 1
2 1
2 2
1 1
1 1
1 2
1 1
2 2
2 2
1 2
1 2
1 1
1 2
1 2
2 1
1 2
1 2
2 2
1 1
2 1
1 1
2 1
2 2
2 1
2 2
2 1
1 2
1 1
1 2
1 2
2 2
1 2
2 1
2 1
2 2
2 2
1 1
1 1
1 1
1 2
2 2
2 1
2 1
2 1
1 2
2 1
1 2
2 2
1 2
1 1
1 1
2 2
2 2
1 1
2 1
2 2
1 2
2 2
1 1
1 2
2 2
2 1
2 2
2 1
2 2
2 1
1 1
1 1
1 2
1 2
1 2
2 1
2 1
2 1
1 2
2 2
2 2
1 1
2 2
1 2
2 1
1 2
1 2
1 1
2 1
1 2
1 2
1 2
1 2
1 2
1 2
1 1
1 1
1 1
2 2
2 2
1 1
2 2
1 2
1 2
2 2
2 2
1 1
1 1
2 2
2 1
2 2
2 1
2 1
2 2
1 1
1 1
2 1
2 2
2 1
2 2
2 2
1 2
2 1
1 2
2 1
2 2
2 1
2 2
1 2
1 1
1 2
1 1
2 1
2 1
2 1
2 1
2 1
1 2
2 1
1 2
1 2
2 2
1 2
1 2
1 1
2 1
1 2
2 2
2 2
1 1
1 1
1 2
1 1
2 2
2 1
1 1
2 2
1 1
1 2
1 2
2 2
2 1
2 1
2 2
2 1
1 2
2 2
2 2
1 2
2 1
2 2
2 2
1 1
2 1
1 2
1 1
1 2
2 1
2 2
1 2
2 2
1 1
2 1
2 1
2 2
2 1
2 2
2 1
1 1
1 2
1 2
2 1
2 1
1 2
2 1
1 2
2 2
2 1
2 1
2 2
2 2
2 1
1 1
2 1
1 1
2 2
2 1
1 2
2 1
1 2
1 1
2 1
1 2
1 2
1 2
1 1
1 1
2 1
1 2
1 2
2 2
2 1
2 1
2 1
1 1
2 2
2 1
1 1
1 1
2 2
1 1
2 2
2 2
1 2
2 1
2 1
2 1
2 1
2 2
2 2
1 1
1 2
1 2
2 2
2 2
1 2
1 1
2 2
1 2
1 1
2 1
1 1
2 2
2 2
1 2
2 1
2 1
2 1
1 2
2 2
2 1
2 1
1 1
1 1
2 2
1 2
1 1
2 2
2 2
1 1
1 1
1 2
1 2
1 1
2 1
1 1
1 1
2 2
2 1
2 1
2 2
2 1
2 2
1 1
2 2
1 2
1 1
1 1
1 2
1 2
2 1
2 1
1 1
1 1
2 1
1 1
1 1
1 2
1 1
1 1
2 2
1 2
2 1
1 1
1 1
1 2
2 1
2 1
2 1
1 2
2 1
2 1
2 1
2 1
1 1
2 1
1 2
2 2
2 1
1 2
1 2
2 2
2 1
2 2
2 2
1 1
2 1
2 2
1 1
1 2
1 1
1 2
1 1
1 1
2 2
1 2
2 1
2 2
2 2
1 1
2 1
1 1
2 1
2 2
2 1
1 1
2 2
1 1
1 2
1 1
2 1
1 2
1 1
2 1
1 1
1 1
2 2
2 1
2 2
2 2
2 1
1 2
1 2
1 2
2 2
2 2
2 2
1 2
1 1
2 2
1 2
1 1
1 1
2 2
2 1
1 2
2 2
2 1
2 2
2 1
2 2
1 2
1 2
1 1
1 2
1 2
1 2
1 2
2 1
1 1
2 2
2 2
1 1
2 1
1 1
2 2
1 1
1 1
1 2
2 2
2 2
1 1
1 2
1 2
1 1
1 2
1 1
1 1
2 1
2 1
2 1
1 1
2 2
2 1
2 2
1 1
1 2
1 2
1 1
1 1
1 1
2 2
1 2
2 1
2 2
1 1
1 2
1 2
1 2
2 1
1 1
2 2
2 2
2 2
1 2
2 2
1 2
1 1
1 2
2 2
1 1
2 2
1 2
2 1
1 2
2 2
2 2
2 1
2 1
2 2
2 2
2 1
1 2
2 2
1 1
2 2
1 2
2 2
1 2
1 1
2 1
1 1
1 2
1 2
1 1
1 2
1 2
2 1
1 2
2 2
1 2
2 2
1 2
1 1
2 1
2 2
2 2
1 1
2 2
2 1
1 1
2 2
1 1
2 2
2 2
1 1
2 1
1 1
2 1
1 2
2 2
2 1
2 2
2 1
1 2
1 1
1 1
2 1
1 1
2 1
2 2
2 2
2 2
2 2
2 2
2 1
1 1
2 1
1 2
2 2
2 1
2 2
2 2
1 2
2 2
2 1
2 2
2 2
1 2
1 2
1 2
1 2
1 2
1 2
1 2
2 1
2 2
1 2
2 1
2 1
2 2
2 1
2 1
2 2
1 2
2 2
2 2
1 2
1 2
2 1
2 2
1 1
1 2
1 1
2 2
1 2
1 2
2 2
1 2
2 2
1 2
2 2
1 1
1 2
2 2
2 2
2 2
2 2
1 1
1 1
2 2
1 1
1 2
2 1
2 1
1 1
1 1
2 2
2 1
2 2
1 1
1 1
2 1
2 2
2 1
1 1
1 2
1 1
1 1
2 2
2 2
1 2
1 2
1 1
1 1
1 2
1 1
2 2
1 1
2 1
1 1
1 2
1 1
1 1
1 2
1 1
2 1
1 1
2 1
1 2
1 2
2 1
1 2
1 1
1 1
1 1
2 2
2 2
1 2
1 1
1 1
2 2
2 1
1 2
2 1
2 1
2 2
2 2
2 1
2 1
1 1
2 1
2 1
2 2
1 2
1 1
1 1
2 2
1 2
2 1
1 1
2 2
1 2
2 2
1 2
2 2
2 2
1 2
1 2
1 2
2 2
2 1
1 2
1 2
1 2
1 1
1 1
2 1
2 1
1 1
2 1
2 2
1 2
1 2
2 1
2 1
1 1
2 1
1 1
1 1
2 1
2 2
1 1
2 1
1 1
1 1
1 1
2 2
1 1
1 2
2 1
2 2
2 1
2 1
2 1
2 1
2 2
1 2
1 2
2 1
2 1
1 1
1 1
2 2
1 2
1 1
2 1
2 1
1 2
2 1
2 2
1 1
2 2
2 1
1 1
1 1
1 1
2 2
1 2
1 2
1 1
2 1
1 1
1 1
2 1
2 1
1 2
1 1
1 1
2 1
2 2
2 2
1 2
2 2
2 1
1 1
1 2
2 1
2 2
1 1
2 2
1 2
1 2
1 1
1 2
1 2
1 2
2 1
2 1
2 1
2 2
2 1
1 1
2 1
2 2
2 1
1 2
1 1
1 2
2 2
1 1
2 1
2 2
2 1
1 1
1 1
2 1
1 2
1 2
2 1
1 2
2 1
2 2
2 1
2 2
1 2
1 2
2 2
1 1
1 1
2 1
2 2
2 2
1 2
2 2
2 1
2 2
1 2
2 1
2 1
2 2
1 2
2 2
2 2
2 2
2 2
2 2
2 1
2 1
2 2
1 2
1 1
1 2
2 1
1 1
1 2
2 1
2 1
2 2
1 1
2 2
1 1
1 1
2 2
1 1
2 1
2 2
2 2
1 2
1 1
2 1
1 1
2 1
1 1
1 2
1 2
1 2
2 2
2 1
2 1
2 1
1 1
2 1
1 1
1 2
1 1
1 2
2 2
1 2
1 2
2 1
2 1
2 1
1 1
1 2
2 2
2 2
2 2
1 1
2 2
1 1
2 2
2 1
1 1
2 1
1 1
1 2
1 1
2 1
1 2
1 1
2 2
1 1
1 2
1 1
2 1
1 1
2 2
1 1
2 2
2 1
2 1
2 1
1 2
1 2
2 2
2 1
2 1
2 1
1 1
2 1
1 1
2 2
2 1
2 1
1 2
2 2
1 1
1 1
1 1
1 1
2 1
1 1
1 2
2 1
1 2
2 2
1 2
2 1
1 1
1 1
1 2
1 1
2 1
2 1
1 2
1 2
2 2
1 2
1 2
1 2
1 2
2 2
2 2
2 1
1 1
2 2
2 2
2 1
2 1
1 1
1 2
1 1
1 1
2 2
1 2
1 1
2 2
2 2
2 2
2 1
2 2
2 1
2 2
2 1
2 2
2 2
2 1
2 1
2 1
2 2
1 1
2 2
2 2
2 1
2 1
2 1
2 2
1 1
1 1
2 2
2 2
2 1
1 2
2 1
2 2
2 2
2 2
2 2
1 2
1 2
1 2
1 2
2 2
2 1
2 2
2 2
1 2
1 2
2 1
1 1
2 1
1 2
1 2
1 1
1 1
1 1
1 2
1 2
1 2
1 1
1 1
2 1
1 2
1 2
1 2
2 2
1 2
1 2
1 1
2 1
2 2
1 1
2 2
2 1
2 2
1 1
2 2
2 2
1 1
2 1
1 1
1 1
2 2
2 1
1 1
1 1
2 2
2 2
2 1
2 2
1 2
2 1
2 2
2 1
1 2
1 2
2 2
2 1
1 2
1 1
2 1
2 2
1 2
2 2
2 2
1 1
2 2
1 1
2 1
2 2
2 2
1 1
1 2
1 2
2 1
1 1
2 2
1 1
2 2
2 2
2 2
1 1
1 2
2 1
1 2
1 2
2 2
2 1
2 2
1 2
2 2
2 1
1 2
2 1
1 2
1 1
1 2
1 1
2 1
2 2
2 2
1 2
2 1
1 1
2 1
2 1
1 2
2 1
1 1
2 1
1 2
1 2
1 1
2 2
2 1
1 1
2 1
1 2
2 1
1 2
2 2
1 2
1 2
2 1
1 2
1 1
1 2
2 2
2 2
1 2
1 2
1 1
2 1
2 1
1 2
2 1
1 2
2 1
1 1
2 1
1 2
1 1
2 1
1 1
2 2
2 1
1 1
1 2
1 1
2 1
1 2
1 2
1 2
1 2
2 2
2 2
2 1
2 1
2 2
2 1
2 2
1 2
2 1
2 2
2 1
2 2
2 1
2 2
1 1
2 2
2 2
1 1
2 1
2 2
1 1
1 2
1 2
1 2
2 2
2 2
1 2
1 2
1 1
2 2
1 1
2 1
2 2
2 1
2 1
1 2
1 1
1 1
2 2
1 1
2 1
1 2
1 2
2 1
1 2
2 1
1 1
1 1
2 2
1 2
2 1
1 2
1 1
1 2
2 2
2 1
2 1
2 1
2 2
2 1
1 1
1 1
2 2
1 1
1 1
2 2
1 1
1 2
1 1
2 2
1 1
1 2
2 1
2 2
2 2
2 1
1 1
1 1
1 1
2 1
1 2
2 1
1 1
2 1
2 1
1 1
2 1
1 2
2 1
2 1
2 2
1 2
2 2
1 2
1 1
1 1
2 2
1 2
1 1
1 2
2 1
1 1
1 2
1 2
1 2
1 1
2 2
1 2
1 1
2 2
2 1
1 1
2 1
1 1
2 2
1 2
1 1
1 2
1 1
2 1
1 1
1 1
1 1
2 2
2 2
2 1
1 2
1 1
2 1
2 1
1 1
2 1
1 1
2 2
1 2
2 2
2 1
2 1
2 1
1 2
1 1
1 1
2 1
1 1
2 2
2 1
2 2
1 2
2 1
2 2
1 2
1 1
2 2
2 2
1 2
1 1
1 1
1 1
1 2
2 1
2 2
1 2
2 2
1 2
2 2
1 2
2 1
2 1
2 2
2 1
1 2
2 2
2 2
1 2
1 2
2 2
2 2
2 1
2 1
2 1
1 1
2 1
1 1
1 2
1 2
1 2
1 2
1 2
2 2
2 2
2 1
2 2
1 1
2 1
1 1
1 1
2 2
1 2
1 2
1 1
1 1
1 2
1 2
2 2
2 2
2 2
1 2
2 1
1 1
1 2
2 2
1 1
2 2
1 2
2 2
1 1
1 2
1 2
2 2
1 2
2 2
1 2
2 2
1 2
2 1
1 1
1 2
2 1
1 2
2 2
1 1
1 1
1 1
2 1
1 1
1 1
1 1
1 2
1 2
2 1
1 2
2 2
1 1
2 2
2 1
2 2
1 1
1 1
1 1
1 1
2 2
2 1
1 2
2 1
2 1
1 1
1 1
1 1
1 2
2 1
1 1
1 1
1 1
1 1
1 1
2 1
1 1
1 1
1 2
2 1
2 2
2 1
2 2
2 1
1 1
2 2
2 2
1 2
2 1
2 1
1 2
1 1
1 1
1 1
2 2
1 2
2 1
1 1
1 2
2 1
1 1
2 2
2 1
1 2
1 2
2 2
1 1
2 2
1 2
2 1
2 2
2 2
2 1
2 2
1 2
1 1
2 1
2 2
2 1
1 1
1 2
2 1
2 1
1 2
2 2
1 2
2 2
2 2
1 1
1 1
1 2
1 1
2 2
2 1
2 2
1 1
2 2
1 2
1 1
1 1
2 2
1 2
1 1
1 2
2 2
1 1
2 2
1 1
2 2
1 1
1 1
2 1
2 1
2 2
2 2
1 1
2 2
1 1
1 2
1 1
2 1
1 1
1 2
1 2
2 2
2 1
1 1
1 2
1 2
1 1
1 1
2 2
1 2
2 1
2 2
1 2
1 2
1 2
2 2
1 2
1 1
2 2
1 2
2 2
2 1
2 1
1 1
1 2
1 2
2 1
1 2
1 1
1 2
2 1
1 1
1 2
2 2
1 2
2 1
2 2
2 2
1 2
1 1
1 2
1 1
2 2
1 2
1 2
2 2
1 1
2 2
2 2
1 1
2 2
2 1
2 2
1 2
2 1
1 2
1 2
2 1
2 2
1 1
2 2
2 2
1 1
2 1
2 2
2 1
2 1
2 2
2 2
1 2
1 1
2 1
2 2
2 1
2 2
2 1
2 2
2 1
2 1
1 2
1 1
1 1
1 1
2 1
1 1
2 2
2 2
2 2
1 1
1 1
1 1
2 2
2 1
2 2
2 2
2 2
2 1
1 1
2 1
2 2
1 1
1 2
2 2
1 1
2 1
2 2
2 2
2 2
1 2
2 2
2 1
1 1
1 1
1 2
2 2
1 1
2 1
1 2
1 2
2 1
2 1
2 2
1 2
2 2
2 2
2 2
1 2
1 2
1 2
1 2
2 2
1 1
2 2
1 1
1 1
2 2
1 2
2 2
1 2
1 2
1 2
2 2
1 2
1 2
2 1
1 2
2 2
2 1
2 1
2 2
1 2
2 1
2 1
1 2
2 1
2 1
1 1
2 1
2 1
1 2
2 2
2 2
1 1
2 1
1 2
1 2
1 1
2 2
2 2
2 2
1 2
2 2
2 2
1 2
2 2
2 2
2 2
1 2
2 1
2 2
2 1
2 1
1 2
1 2
1 2
2 1
2 1
2 1
1 1
1 2
2 2
1 1
2 2
1 1
2 2
1 2
2 2
2 2
1 1
1 1
1 2
1 2
2 1
2 1
1 1
1 1
1 1
2 1
1 1
2 1
2 1
2 2
2 2
2 1
1 2
1 2
2 1
2 1
2 1
1 1
1 1
1 2
2 1
1 1
2 1
2 1
1 2
1 2
2 2
1 2
1 1
2 2
1 2
1 2
1 1
2 2
2 2
2 1
2 1
1 1
1 2
2 2
2 2
1 2
1 1
1 1
1 2
2 1
1 1
1 2
1 1
2 2
1 2
1 1
2 1
2 1
2 2
1 1
1 1
2 2
2 1
1 1
2 2
2 1
2 1
2 1
2 1
2 1
2 1
2 2
1 2
1 2
2 1
1 2
1 1
1 2
1 2
2 2
2 2
1 1
1 1
2 1
1 2
1 1
1 2
2 1
2 1
1 2
2 1
2 1
1 2
1 1
2 2
2 1
1 2
1 2
2 2
2 1
2 1
2 1
1 1
1 1
2 2
1 1
2 2
2 2
2 1
2 2
2 1
2 1
2 1
1 2
2 1
2 2
1 1
2 2
2 2
1 1
1 1
1 1
1 1
1 2
2 1
1 1
1 2
1 1
2 2
1 1
2 2
1 2
1 1
2 1
1 1
2 1
2 2
2 1
1 2
1 1
1 2
2 2
2 1
1 1
1 1
2 2
1 1
1 2
1 1
2 1
2 1
1 1
1 1
2 2
1 2
1 1
1 1
2 1
2 2
1 1
1 2
2 2
1 2
2 1
1 1
2 1
1 1
2 2
1 2
2 1
1 2
2 2
1 2
1 2
1 1
1 2
2 2
1 1
2 2
2 2
2 2
2 1
1 1
1 2
2 1
1 2
1 2
1 2
2 1
2 2
2 1
2 1
2 1
1 2
1 1
1 1
1 2
2 2
2 1
2 1
1 2
1 2
1 2
1 1
2 2
1 1
2 2
2 2
2 1
2 1
2 1
2 1
1 1
1 2
2 2
2 1
1 2
1 1
1 1
2 1
2 2
2 2
2 2
1 2
2 2
1 2
1 1
2 1
2 1
1 1
1 2
2 2
1 2
1 1
1 1
1 1
1 1
2 2
1 1
1 1
2 2
2 1
2 1
1 2
1 1
1 2
2 1
2 2
2 2
1 1
2 1
2 1
2 1
1 2
2 2
2 1
1 2
2 1
2 2
1 1
2 2
2 2
2 1
2 2
1 1
1 1
1 2
1 2
2 2
1 2
1 1
2 2
1 2
2 2
1 2
2 1
2 2
1 2
1 1
2 1
1 2
1 2
1 2
1 1
2 2
1 1
2 1
2 1
1 2
1 1
2 1
1 1
2 2
1 2
1 1
2 2
1 2
2 1
1 2
1 1
2 2
1 1
1 2
1 2
2 2
2 1
1 1
2 1
2 2
1 1
1 2
2 2
1 2
1 2
1 1
1 2
1 2
1 2
2 2
2 1
1 1
2 2
2 2
1 2
2 1
2 2
2 2
2 1
2 1
1 2
1 1
1 2
2 1
1 2
1 2
2 2
2 2
1 2
2 2
2 1
1 2
1 1
2 1
1 2
2 2
1 2
2 2
1 1
1 2
2 1
1 2
2 2
2 2
1 1
1 1
1 1
2 2
1 2
1 2
1 2
1 1
1 2
1 1
2 2
1 2
2 2
2 1
1 2
2 1
2 2
2 2
1 2
1 2
2 1
2 1
1 2
1 1
2 2
1 2
1 1
2 2
2 1
1 2
1 2
1 1
1 2
2 2
2 2
2 1
2 2
2 2
2 2
1 1
1 1
1 1
1 1
1 2
2 1
1 2
1 1
2 2
1 1
1 2
2 2
2 1
1 1
1 1
1 2
1 1
1 2
2 2
1 1
2 2
1 2
1 2
2 2
1 2
2 1
2 2
2 1
2 1
2 1
2 2
2 2
2 1
1 1
2 2
1 1
2 2
2 2
2 2
1 2
1 1
1 2
1 1
1 1
1 2
2 1
1 2
1 1
1 1
2 2
1 1
1 2
1 1
2 2
2 1
1 1
1 1
1 2
1 2
2 2
2 2
2 1
2 2
1 2
2 1
1 2
2 2
2 1
2 2
1 2
1 2
1 2
1 2
1 1
1 1
2 2
2 1
1 2
2 2
1 1
2 1
2 2
1 2
1 2
1 1
2 2
2 1
1 2
2 2
2 1
2 2
2 2
2 2
1 2
2 1
2 2
2 2
1 1
2 1
2 2
2 1
1 1
1 2
2 1
1 1
2 1
2 2
1 1
1 1
2 1
1 1
1 2
2 2
2 2
1 2
1 1
2 2
1 1
1 2
2 2
1 2
1 1
1 1
2 1
2 2
1 2
1 2
2 2
2 2
1 2
2 2
2 1
1 2
1 2
1 1
2 2
1 2
2 2
2 2
1 2
2 2
2 2
2 1
1 1
1 2
1 2
1 2
2 1
2 1
2 2
1 2
2 2
1 1
1 2
1 2
2 2
2 2
2 1
2 1
2 2
1 2
1 2
2 2
2 2
1 2
2 2
2 2
1 2
1 2
1 1
1 2
2 1
1 2
2 2
1 2
2 2
1 2
1 2
1 2
1 2
1 2
1 1
2 1
1 1
1 1
2 1
2 2
2 2
1 1
2 2
2 2
2 1
1 2
1 2
2 2
1 2
1 1
2 2
1 1
1 1
1 2
2 1
1 1
2 1
1 1
1 1
2 2
2 1
2 2
1 1
2 1
1 2
2 2
2 2
1 1
2 1
1 1
1 2
1 2
2 2
2 2
1 2
2 2
2 1
1 1
2 2
2 2
1 2
1 2
2 2
1 1
2 1
1 2
2 1
1 2
2 1
2 2
2 1
1 2
1 2
1 2
2 1
2 2
1 2
2 2
1 2
1 2
2 2
1 2
1 1
2 1
1 2
1 2
2 2
1 1
1 1
2 2
2 1
2 1
1 2
2 1
2 2
2 1
1 1
2 2
2 2
2 1
1 1
1 2
2 1
2 2
2 1
1 1
2 1
2 1
1 2
2 2
2 2
1 1
2 2
2 1
1 2
2 2
1 2
2 2
2 2
2 2
1 2
1 2
1 1
2 2
2 2
2 1
1 2
2 1
1 2
1 2
2 2
2 1
1 2
2 2
2 1
2 2
1 1
2 2
2 2
1 1
2 1
2 1
2 1
2 1
1 2
2 2
2 2
1 1
2 1
1 2
1 1
2 2
1 2
1 2
1 1
1 2
2 1
2 2
1 1
1 1
1 2
1 1
2 1
1 1
2 1
2 2
2 1
2 2
1 1
1 1
2 2
1 2
1 1
1 2
2 1
2 1
1 2
1 1
2 1
1 2
1 1
2 1
1 2
1 1
2 1
2 2
1 2
1 1
2 1
1 1
2 1
1 1
2 1
2 1
2 1
1 1
2 2
2 1
2 2
2 2
2 2
1 1
1 2
1 1
1 1
1 2
2 1
1 2
1 1
2 2
2 2
1 2
2 2
2 1
2 1
1 2
1 1
2 2
2 2
1 1
1 2
2 1
2 1
2 1
2 1
1 2
2 1
1 1
1 2
1 2
2 1
1 2
1 2
1 2
1 2
1 2
2 2
2 2
2 1
2 1
2 1
2 1
2 1
2 2
2 1
2 1
1 2
2 2
2 1
1 2
2 2
1 1
2 1
1 1
1 1
2 2
2 2
1 2
2 2
1 1
1 1
1 2
1 1
1 2
1 2
2 1
2 1
1 2
2 1
2 2
1 2
1 1
2 2
1 2
2 2
2 1
1 2
1 2
2 2
1 1
2 1
1 1
2 1
2 1
2 2
2 1
2 2
2 2
1 1
2 1
2 1
2 1
2 2
2 2
2 1
2 2
1 2
2 1
2 1
1 1
1 1
1 2
1 2
1 1
2 1
1 1
1 1
2 2
1 2
2 2
2 2
2 2
1 1
1 2
2 2
1 1
2 2
1 1
1 2
1 1
1 1
2 1
2 1
2 1
1 2
1 2
2 2
1 1
1 2
2 1
2 1
1 1
2 1
1 2
1 2
2 2
1 2
1 2
2 1
2 2
2 2
1 1
2 1
2 1
2 1
1 2
1 1
2 2
1 1
1 1
1 1
1 2
2 1
1 2
1 2
1 2
2 1
1 2
1 1
1 1
1 2
2 1
2 2
1 2
1 2
2 2
2 1
2 1
2 2
2 1
2 1
2 2
1 1
1 1
1 2
2 2
2 2
1 1
2 2
2 2
1 1
1 1
1 1
1 2
2 2
1 1
2 1
1 1
1 1
1 2
2 1
1 2
2 1
2 2
1 2
2 2
2 1
1 2
2 1
1 2
1 1
2 2
1 1
2 1
2 2
1 1
2 1
2 1
2 2
2 2
2 2
1 1
1 2
2 2
2 1
1 2
1 1
2 2
1 1
1 2
2 1
1 2
2 2
2 2
2 1
2 2
1 1
2 1
2 2
1 2
1 2
2 1
1 1
2 2
2 1
1 1
1 2
2 2
2 1
1 2
1 1
1 1
2 2
2 1
1 1
1 2
1 1
2 2
2 2
1 2
1 2
2 2
2 2
2 2
1 1
2 2
2 1
2 2
1 2
1 1
2 1
1 1
1 2
1 2
1 2
1 1
1 1
2 2
2 1
1 1
2 1
2 1
2 2
2 1
2 1
2 1
1 1
2 1
1 2
2 2
1 1
2 1
1 1
1 2
2 1
2 1
2 2
2 1
1 1
2 2
2 1
2 2
1 2
2 2
1 2
1 2
1 2
1 2
1 1
1 1
1 1
2 2
2 1
1 1
2 2
2 1
1 2
1 1
1 2
2 2
2 1
2 2
1 1
2 1
2 1
2 1
1 1
2 2
2 2
2 1
1 2
2 1
1 1
2 1
2 2
1 1
2 2
1 1
1 2
1 1
1 2
2 2
2 1
1 2
2 1
1 2
1 1
2 2
1 2
2 1
2 1
2 2
1 2
1 2
2 2
2 2
1 1
2 2
1 1
2 1
2 1
1 2
2 2
2 1
2 1
1 1
1 1
2 2
2 1
2 2
1 1
1 1
1 1
2 1
1 2
1 1
2 2
1 2
2 1
1 1
1 2
1 1
1 1
2 2
1 2
1 1
1 2
1 1
2 2
1 1
1 1
1 1
1 1
1 2
1 1
2 1
1 1
2 1
2 1
2 1
1 2
2 1
2 2
1 1
1 1
2 2
1 2
1 1
1 1
2 1
2 1
2 1
2 1
2 1
2 1
1 1
1 1
2 1
1 2
1 1
2 1
1 2
2 1
1 2
2 2
2 1
2 2
2 1
2 2
1 1
1 2
2 1
2 1
1 1
2 2
2 2
2 1
2 1
1 2
2 2
1 1
2 2
1 1
1 2
1 1
1 2
1 2
2 2
1 1
1 1
1 1
1 2
2 1
2 2
1 1
2 1
1 2
2 1
1 2
2 2
1 2
1 1
1 1
2 1
1 1
1 2
1 2
1 2
2 2
2 2
2 2
1 1
2 1
1 1
2 2
1 2
2 2
1 2
2 2
2 2
2 1
1 1
1 2
2 1
2 2
1 1
1 2
2 1
2 1
1 1
1 1
2 2
2 1
1 2
1 2
2 1
2 2
2 1
2 1
2 1
1 1
1 1
2 2
2 2
1 2
1 2
1 2
2 1
1 1
2 2
1 2
1 2
1 1
1 1
2 1
2 1
2 1
1 1
2 1
2 2
2 1
1 2
1 2
2 2
2 1
2 2
1 2
1 2
1 1
1 2
1 1
1 1
1 1
1 2
1 2
1 2
1 1
2 1
2 1
2 1
2 2
1 2
1 1
1 1
1 2
2 2
2 2
1 2
1 1
1 2
1 1
1 2
2 1
2 1
2 1
1 1
2 1
2 2
2 1
1 1
2 1
1 1
2 2
2 2
2 1
2 1
2 2
1 1
2 2
2 2
2 2
2 2
1 2
2 1
1 2
2 1
1 1
2 2
1 2
2 1
2 2
2 1
1 2
2 2
2 2
2 1
1 1
1 1
1 2
1 2
1 2
2 2
1 2
2 1
2 2
1 1
2 1
1 1
2 2
1 2
2 1
1 1
1 1
1 1
2 2
2 2
1 1
2 2
2 2
1 1
2 1
1 2
1 2
2 1
1 2
2 1
2 2
1 2
2 2
1 2
1 1
2 1
2 1
2 1
1 1
1 2
2 1
2 2
1 2
2 1
2 1
2 2
2 2
1 2
1 1
1 1
2 1
1 1
2 1
2 2
2 1
1 2
2 1
2 1
1 1
1 2
1 1
1 1
1 1
2 1
2 1
1 1
2 2
1 2
1 1
1 2
1 1
2 2
1 2
2 1
1 1
2 1
1 1
1 2
1 2
2 2
1 2
1 2
1 2
2 2
1 2
2 2
2 2
2 1
1 1
1 1
1 2
1 2
2 1
2 2
2 2
1 2
1 1
2 1
1 1
2 1
1 2
1 1
2 2
2 1
1 2
2 2
1 1
2 2
2 1
2 1
1 1
1 2
1 1
1 1
1 2
2 1
1 1
1 2
1 2
1 2
2 1
2 2
1 2
2 1
2 1
2 1
1 1
1 1
1 2
2 1
1 2
2 2
1 1
1 2
1 2
1 2
2 2
2 1
2 2
1 2
1 1
1 1
1 2
2 2
1 2
2 1
1 1
2 1
2 2
1 2
1 1
2 2
2 2
2 1
2 2
1 1
1 2
2 1
2 2
2 1
2 1
1 1
1 2
1 1
2 1
2 1
1 2
1 1
1 1
1 1
2 1
1 2
1 2
2 2
1 2
2 1
1 1
1 2
1 2
1 1
1 2
1 2
2 1
1 2
1 1
1 2
1 2
1 2
1 1
2 2
2 2
2 1
1 2
1 1
2 1
2 1
2 1
1 2
2 1
2 1
2 2
1 2
2 2
2 1
1 2
2 2
2 2
2 2
1 1
2 1
1 1
1 1
2 2
2 2
1 1
2 2
1 1
2 2
2 1
2 1
2 1
2 1
1 1
1 1
2 2
2 1
1 1
1 1
1 2
2 1
1 1
2 2
2 2
2 1
1 1
1 2
2 2
2 1
2 2
2 1
2 2
1 2
1 2
2 1
1 2
1 1
1 1
2 1
2 1
2 1
1 2
2 2
1 2
2 2
2 2
2 2
1 1
1 2
1 2
1 1
2 1
1 1
2 2
1 1
2 1
1 1
1 2
2 1
2 1
1 1
2 2
1 1
2 1
2 1
2 1
1 1
2 1
1 1
1 1
2 2
2 2
1 2
2 2
2 1
1 2
1 2
1 1
2 2
1 1
1 1
2 1
2 1
2 1
1 1
1 2
2 2
2 2
1 2
1 2
1 1
1 2
2 2
1 2
2 2
2 2
1 1
2 2
1 2
2 2
2 1
2 1
2 2
1 1
2 1
2 2
2 2
2 2
1 2
1 1
1 2
2 1
1 2
1 2
1 1
1 2
1 2
1 1
1 1
1 2
1 2
1 1
2 2
1 2
2 1
2 1
1 2
1 1
1 2
1 2
2 1
1 1
1 2
2 2
2 2
1 1
2 1
1 2
1 2
1 2
1 1
2 2
1 1
1 2
2 2
2 1
2 1
1 2
2 2
2 1
2 2
2 2
1 1
1 2
2 1
1 1
2 1
2 1
2 2
2 2
1 1
2 1
2 2
2 2
1 2
2 1
1 2
2 1
1 2
1 2
1 2
1 1
2 1
1 2
1 2
1 2
2 2
1 2
1 2
2 2
2 2
2 2
2 2
2 2
1 2
1 1
2 1
1 1
2 2
2 2
2 2
1 1
2 1
2 2
2 2
2 2
2 2
2 2
2 2
2 1
2 1
2 1
1 2
1 1
1 1
2 2
2 1
1 1
1 2
1 1
2 2
2 1
2 2
1 1
2 1
2 2
1 2
1 1
1 1
2 2
1 2
1 1
2 2
2 1
2 1
2 1
2 2
1 2
2 2
2 2
2 2
2 2
2 2
1 1
2 1
2 1
1 2
1 1
1 2
1 2
2 1
2 2
1 1
1 2
1 2
2 2
2 1
2 1
2 2
2 1
2 2
2 2
1 1
1 1
2 1
2 1
2 1
1 1
1 2
2 2
2 2
1 2
2 2
1 2
1 2
2 2
2 2
1 2
1 2
2 1
1 1
2 1
1 2
1 1
1 2
1 1
2 1
2 1
2 1
1 2
2 2
1 1
1 1
1 2
2 2
1 2
1 1
1 2
1 1
2 2
2 2
2 1
1 1
1 2
1 2
1 2
1 2
2 2
1 1
2 2
1 1
2 1
2 2
1 1
2 1
1 1
1 1
2 2
2 1
1 1
1 2
2 1
1 1
1 1
1 1
1 2
2 2
1 1
1 1
1 2
2 1
2 2
1 1
1 1
1 2
2 2
1 2
1 2
2 2
2 2
2 1
2 2
2 2
1 2
1 2
1 2
1 2
1 2
1 2
2 2
1 2
1 2
1 1
1 1
2 1
2 2
1 2
1 1
1 1
1 2
1 2
1 2
2 1
2 1
2 1
2 1
1 1
1 1
1 1
2 1
2 2
1 1
2 1
2 2
2 2
1 2
2 2
2 1
2 1
2 1
1 1
2 2
2 2
2 1
2 1
2 2
1 2
1 1
1 2
2 2
2 1
2 2
2 1
2 2
2 2
1 1
2 1
1 1
1 2
2 1
2 1
2 1
1 2
2 1
1 1
2 2
1 2
1 2
1 2
1 1
2 1
1 2
1 1
1 2
1 2
2 2
1 1
1 1
1 1
2 2
1 1
1 1
1 2
1 2
1 2
1 1
1 1
1 2
2 2
1 2
2 1
1 2
2 1
2 1
2 1
1 2
2 1
2 1
1 1
2 2
1 1
1 1
1 2
1 1
1 2
1 2
2 1
2 2
1 2
2 1
1 1
2 2
2 1
2 1
1 2
1 1
1 2
1 2
1 1
1 2
1 1
2 2
1 2
1 1
2 2
1 1
1 1
2 2
1 2
2 2
1 1
2 2
1 1
1 1
1 1
2 2
1 1
2 1
1 2
1 2
1 2
1 2
1 2
2 2
2 1
2 2
2 2
1 1
1 1
2 2
1 1
1 1
2 2
1 2
2 1
1 2
1 1
2 1
2 2
2 2
1 1
1 1
1 1
2 1
1 1
2 1
2 1
2 2
2 1
1 2
1 2
1 1
2 1
1 2
1 2
2 1
1 2
2 2
1 2
1 1
2 1
2 2
1 1
2 1
1 1
1 2
1 2
2 1
2 2
2 2
2 2
1 2
2 2
2 2
2 2
2 2
1 2
1 1
2 2
2 1
1 2
1 2
1 2
2 1
1 1
1 1
2 2
2 2
1 2
2 2
2 2
1 1
2 2
2 1
1 1
1 1
2 2
1 1
2 1
2 1
2 2
2 2
1 2
1 1
2 2
1 2
2 1
2 2
2 1
1 1
1 1
1 2
2 2
1 1
1 1
1 2
2 1
2 1
1 2
1 1
2 2
2 1
2 1
1 2
2 1
1 1
1 2
1 1
2 2
1 2
1 2
1 2
2 2
2 1
2 1
2 1
2 2
1 1
2 2
2 1
2 1
1 2
2 2
1 1
2 1
2 1
2 1
2 1
1 2
1 1
2 1
1 1
2 1
1 1
1 1
1 1
2 1
2 2
2 1
2 2
1 2
2 1
2 1
1 2
1 2
1 2
1 2
1 1
1 1
1 2
2 1
1 2
1 2
2 1
1 2
2 1
2 2
1 2
1 2
1 1
1 2
1 1
1 1
1 2
2 1
1 1
2 2
1 2
2 1
1 1
2 2
1 1
2 1
1 2
2 1
1 1
2 1
2 1
1 1
2 1
1 1
1 2
1 1
1 2
2 1
1 1
2 2
1 2
1 2
2 1
2 2
2 2
2 2
2 2
2 2
1 1
2 1
2 1
1 1
1 1
1 1
2 2
2 2
1 1
1 1
1 1
2 2
2 1
1 1
1 2
2 1
1 2
1 2
2 1
2 2
1 2
2 2
1 2
2 2
2 2
2 1
1 2
2 2
1 2
2 1
1 1
2 1
2 1
1 1
2 1
2 2
1 2
2 1
2 1
1 1
2 2
1 1
2 2
2 2
1 2
1 1
1 1
1 2
1 2
1 1
2 1
2 2
1 2
1 1
2 1
2 2
2 1
1 2
1 2
2 2
1 2
2 1
2 1
1 2
1 1
2 2
2 1
1 2
1 2
2 2
1 2
2 1
1 1
2 2
2 2
2 2
2 2
2 2
1 2
2 2
2 1
1 1
2 2
2 1
1 1
2 2
1 2
2 1
1 2
2 2
2 1
1 2
1 2
1 2
1 2
2 1
1 2
2 2
1 2
1 1
1 2
1 2
2 1
1 2
2 2
2 2
1 1
2 1
1 2
1 1
2 2
1 2
1 1
1 1
1 1
1 1
2 2
1 2
2 1
1 2
2 1
1 1
2 2
1 1
2 1
2 1
1 1
1 2
1 2
1 1
1 1
2 1
1 1
2 2
1 1
2 2
1 2
1 2
1 2
2 1
2 2
1 1
2 1
1 1
1 2
2 1
1 2
1 2
2 1
1 2
2 2
2 2
1 1
2 1
1 1
1 1
1 1
1 1
2 1
2 2
2 1
2 2
1 1
2 2
1 1
1 2
2 1
1 1
1 2
2 2
1 1
1 1
1 1
1 2
2 1
2 2
2 2
1 1
1 2
1 1
2 1
1 2
1 2
2 1
2 1
2 1
2 2
1 1
2 1
1 1
1 2
2 1
2 1
2 1
2 1
1 1
1 2
2 2
2 2
1 2
2 2
1 1
1 2
2 2
1 2
2 2
2 2
2 1
1 1
2 1
2 2
1 1
2 1
1 2
1 1
2 2
1 1
1 2
2 2
2 1
1 2
2 2
2 1
1 1
1 1
2 1
1 1
1 1
1 2
1 1
2 1
2 2
1 2
1 1
2 2
1 2
2 2
2 1
1 1
2 1
2 1
2 2
1 2
1 2
1 2
1 2
1 2
2 1
1 2
1 1
1 1
1 2
1 1
1 1
1 1
1 2
2 2
1 1
1 1
2 1
1 1
1 2
2 2
2 2
1 2
2 2
2 2
1 2
2 1
1 2
2 1
1 2
1 1
1 2
2 2
1 2
1 2
1 2
1 1
2 1
2 1
1 1
2 1
1 2
2 1
1 1
2 2
1 1
2 1
1 1
2 2
2 1
1 1
2 2
2 2
1 1
2 1
2 2
2 2
2 1
1 2
1 2
1 2
2 2
2 2
1 2
1 2
2 2
2 2
2 2
1 1
2 1
2 2
1 1
1 2
1 1
1 2
1 1
2 1
1 1
2 1
1 1
1 2
2 1
2 1
2 1
1 1
2 1
2 2
1 2
1 2
2 1
2 1
1 2
2 1
2 2
2 1
2 2
2 1
2 1
1 1
1 1
2 2
2 2
1 1
2 2
2 2
1 1
1 1
2 1
1 2
1 1
1 2
1 2
1 2
2 2
2 2
2 2
1 1
2 1
2 2
2 1
1 2
2 1
1 2
1 2
1 1
2 1
1 1
2 1
1 1
2 2
1 2
2 2
1 2
1 2
2 1
2 2
1 2
2 1
2 2
1 2
2 2
1 2
2 2
1 2
2 2
1 1
2 1
2 1
2 2
2 1
2 1
1 1
1 1
2 2
1 2
1 1
1 2
1 2
1 1
1 2
2 1
2 2
2 1
1 1
1 2
1 1
2 1
2 1
1 2
2 1
2 1
2 2
2 1
1 2
2 2
2 1
2 1
2 2
2 2
2 1
2 1
2 2
2 2
1 1
2 1
2 2
2 1
2 1
2 1
2 1
1 2
2 2
2 1
1 2
1 2
1 1
2 1
1 2
1 1
1 1
1 2
2 2
1 1
1 2
1 2
1 2
2 1
2 1
2 1
2 2
1 1
1 2
2 2
2 2
2 2
2 1
2 2
2 2
2 2
2 2
1 1
1 2
1 2
2 2
1 2
1 2
2 2
2 2
2 1
2 1
1 2
2 1
1 2
1 2
2 2
2 1
1 2
2 2
2 1
2 2
1 1
2 1
1 2
2 1
1 2
2 2
2 2
1 2
1 2
1 1
1 1
1 2
2 1
1 2
2 1
1 2
2 1
2 1
1 1
1 1
2 2
2 2
1 1
1 2
1 2
2 2
2 2
1 1
2 2
1 1
1 2
1 2
2 2
2 1
2 1
1 1
1 2
2 1
1 2
2 1
2 2
1 2
2 2
1 2
1 1
2 2
2 2
2 2
2 1
2 1
1 1
2 2
2 1
2 2
1 1
2 2
2 1
1 2
1 1
1 1
2 1
1 1
2 2
2 2
2 1
2 1
2 2
2 2
1 2
1 1
1 1
2 1
1 2
2 2
2 2
2 1
1 2
1 2
1 1
2 1
2 1
2 1
1 1
2 2
1 1
2 2
1 2
1 1
1 2
1 1
1 2
1 1
1 1
2 1
2 1
2 2
1 1
2 2
1 2
2 1
2 2
1 2
1 2
2 1
2 1
2 2
1 2
2 1
2 1
2 1
1 2
2 2
2 1
2 1
2 1
2 2
2 2
2 1
1 2
2 2
2 1
2 1
2 2
2 2
2 2
2 1
2 2
2 1
2 1
2 2
1 2
2 1
2 1
1 1
2 1
2 2
2 1
2 2
1 1
2 1
2 2
1 2
1 1
2 1
2 2
2 1
2 1
1 1
1 2
2 2
2 1
1 2
2 1
1 1
2 2
2 1
1 2
2 2
1 2
1 1
1 2
1 2
2 2
2 1
2 2
2 2
2 2
1 2
2 2
2 2
1 1
1 2
2 2
1 1
1 1
2 2
2 2
1 1
1 1
1 2
1 2
1 1
1 2
1 1
2 2
2 2
1 2
1 2
2 1
1 1
2 2
2 1
2 2
2 2
2 2
2 1
1 2
2 1
1 1
2 2
1 1
2 2
1 1
2 2
1 2
2 2
2 1
1 2
2 1
2 1
1 2
1 1
2 1
1 2
2 2
2 1
2 2
1 1
2 2
2 2
2 2
2 2
2 1
2 1
1 2
1 2
1 1
1 2
2 1
1 2
1 1
2 2
2 1
1 1
2 1
1 2
1 2
1 2
1 1
1 2
1 2
2 2
2 2
1 2
1 2
1 2
1 1
1 2
2 2
2 2
1 1
1 1
1 2
1 1
1 2
2 1
2 2
1 2
1 2
2 1
1 2
2 2
1 1
2 1
2 1
1 1
1 2
2 1
1 2
1 1
2 2
2 2
2 1
2 1
2 1
1 1
2 2
1 2
2 1
2 2
2 1
1 1
2 1
2 2
1 2
1 2
2 1
2 1
2 2
1 2
1 2
2 2
1 1
1 2
1 2
1 1
1 1
1 2
2 2
2 1
1 1
2 2
2 2
2 2
2 2
2 1
2 2
2 2
1 1
2 2
1 2
1 1
2 1
2 2
1 1
2 2
2 2
1 1
1 1
1 1
2 1
2 1
1 1
2 1
1 2
1 1
1 2
1 1
2 2
1 2
2 1
1 2
1 2
1 1
1 1
1 1
1 2
2 1
1 1
1 2
2 2
2 2
1 1
1 2
2 1
2 2
1 2
1 2
1 2
2 2
2 1
2 1
1 2
2 1
2 2
1 1
1 1
2 2
2 2
1 2
1 2
1 2
1 1
1 2
2 2
1 2
2 1
2 1
2 1
2 2
1 2
1 1
2 2
1 1
1 2
1 1
2 2
2 2
1 2
2 1
1 2
1 1
2 1
1 2
2 2
1 2
2 1
1 2
1 1
1 1
2 2
2 2
1 2
1 2
2 2
1 1
2 1
1 2
2 2
2 1
2 2
2 2
2 1
2 2
1 2
1 1
1 2
1 1
1 1
1 1
1 1
2 2
1 1
2 2
2 1
1 1
1 2
2 2
2 2
1 1
2 1
1 2
1 2
2 1
1 2
1 1
2 2
1 2
1 2
1 2
1 2
2 1
1 2
1 2
2 1
2 1
2 2
2 1
1 2
2 2
1 2
1 1
1 2
2 1
1 1
2 2
1 1
2 2
1 2
1 2
1 2
2 2
1 1
2 1
2 2
1 2
2 2
1 2
1 1
2 1
2 2
2 1
1 1
1 1
2 1
1 1
2 2
1 1
1 2
1 2
2 1
1 1
1 1
2 1
2 2
1 2
1 1
1 1
1 2
2 1
2 1
2 1
1 2
2 1
1 2
2 1
2 1
2 2
2 1
2 1
2 1
2 1
1 1
1 1
2 1
1 1
2 1
2 2
2 2
1 1
1 2
2 2
2 1
1 2
1 1
1 2
2 2
1 2
2 1
2 1
2 2
2 2
1 2
1 1
2 1
1 1
1 2
1 2
2 2
1 2
2 2
2 1
2 1
2 2
2 2
1 1
2 2
1 2
2 1
1 2
1 1
2 1
1 1
2 1
1 1
2 2
2 2
2 1
2 1
2 1
2 2
1 2
1 1
2 2
1 2
1 1
1 1
2 2
1 2
2 2
2 1
2 1
1 1
1 1
2 1
1 2
2 2
2 1
2 1
1 1
1 2
1 2
2 1
2 2
2 1
2 2
1 2
1 1
2 2
1 1
2 2
2 2
1 1
1 1
2 2
2 2
2 2
2 1
1 2
2 2
2 1
1 1
1 2
2 1
2 1
1 2
2 2
2 2
1 2
1 2
2 1
2 2
2 2
1 1
1 1
1 2
1 2
2 1
1 1
2 1
1 2
2 1
1 2
2 1
2 2
2 1
2 2
1 1
1 2
1 1
1 2
2 1
1 1
2 1
1 1
2 2
2 2
1 2
2 2
1 2
2 2
2 2
1 2
2 2
2 1
2 1
2 2
2 2
1 2
1 1
2 1
2 2
1 2
1 1
2 2
2 2
1 1
2 1
1 2
1 1
1 2
2 2
1 1
1 2
1 1
1 1
1 1
2 1
1 1
2 1
1 1
1 2
1 1
1 2
2 1
2 2
2 2
1 1
2 1
1 1
1 2
1 2
2 1
1 2
1 2
2 2
2 1
2 1
2 1
2 2
1 2
1 1
2 2
1 1
1 1
1 2
2 1
1 2
1 1
2 2
1 1
1 2
2 2
1 2
1 2
2 2
2 1
2 1
1 2
2 1
2 1
1 1
2 2
1 1
2 1
1 1
1 2
2 2
2 1
2 2
2 2
2 2
1 2
1 2
2 2
2 2
2 1
1 2
1 1
1 1
2 2
2 1
1 1
2 2
1 1
1 1
2 2
1 2
1 2
1 1
2 2
2 2
1 2
1 2
1 1
1 2
1 2
1 2
1 2
2 2
2 2
1 1
2 2
1 1
2 2
1 1
1 2
1 2
1 1
1 1
2 2
2 2
1 2
2 1
2 2
2 1
1 2
1 2
1 2
1 1
2 2
1 2
1 2
1 1
1 1
1 2
1 1
2 2
1 2
2 2
2 2
1 2
2 2
1 2
1 2
1 1
1 1
2 1
1 1
2 1
2 2
1 1
1 2
1 1
1 1
2 1
2 2
2 2
2 2
2 1
1 1
1 1
1 1
2 2
1 1
2 1
2 1
2 2
2 2
1 1
2 2
1 1
2 1
2 1
2 1
2 2
1 1
2 1
1 2
1 2
2 2
2 1
1 2
2 2
2 2
1 1
2 1
1 1
1 1
1 2
1 1
1 2
1 1
2 2
2 1
1 1
2 1
2 1
1 2
2 2
2 1
2 1
1 1
2 1
2 2
2 2
1 1
1 2
1 1
2 1
1 1
1 1
1 2
1 2
1 2
1 1
1 2
1 1
2 1
2 1
1 2
1 1
1 2
2 1
2 1
2 1
1 2
1 1
2 1
1 2
2 1
1 1
1 1
1 1
2 1
2 2
2 1
2 2
1 1
1 1
1 2
1 2
1 1
1 2
2 2
1 2
2 1
1 2
1 1
1 1
2 1
1 2
1 2
1 1
1 1
1 1
1 2
1 2
2 1
1 2
1 2
1 2
2 1
2 1
1 2
1 2
1 1
1 1
1 2
2 1
2 2
2 2
1 2
1 2
1 1
1 2
1 2
2 2
2 2
2 2
2 1
1 2
1 2
1 1
1 1
2 1
1 1
2 1
1 2
1 1
1 1
2 1
2 1
1 1
1 2
1 1
2 2
2 1
2 2
2 2
1 1
1 2
2 2
2 2
2 1
2 2
1 2
1 2
2 1
2 1
2 1
2 1
2 1
2 1
1 2
2 2
2 2
1 2
1 2
2 2
1 1
2 2
2 1
1 2
1 2
1 1
2 2
1 2
2 2
2 1
1 1
2 1
1 1
1 1
1 1
1 1
1 1
2 1
1 1
2 2
1 1
1 1
2 2
1 1
2 1
1 2
2 2
1 1
2 1
1 2
1 2
2 2
2 2
1 1
1 1
2 2
1 2
2 1
1 2
1 2
1 2
2 2
2 2
1 2
2 1
2 1
2 2
1 2
1 1
1 1
1 1
1 2
2 1
2 2
2 1
2 2
1 2
1 2
1 1
1 2
2 1
2 2
2 2
2 2
2 2
2 2
1 1
1 2
2 2
1 2
1 2
2 1
1 1
2 1
2 2
2 2
1 1
1 2
1 2
2 1
2 2
2 2
1 2
1 1
1 2
2 1
2 1
1 2
2 1
1 2
1 1
1 2
2 2
2 1
1 1
1 1
2 2
1 2
1 2
2 2
2 2
2 1
2 1
1 1
2 2
2 1
2 2
2 1
2 2
1 2
1 2
1 2
2 2
1 2
1 2
2 1
1 2
1 1
2 1
2 2
2 1
2 2
2 1
2 2
1 2
2 2
2 1
2 2
2 1
1 1
1 2
2 2
1 2
1 1
2 2
2 2
1 2
1 1
1 2
1 2
2 2
1 1
1 1
2 1
1 1
2 1
2 2
1 2
1 2
2 1
2 1
1 2
2 2
1 2
2 2
1 2
2 1
2 2
1 2
2 2
2 2
2 1
1 1
2 1
2 1
1 2
1 2
1 2
2 2
1 1
1 2
1 1
2 1
2 2
1 1
1 1
2 2
2 2
1 1
2 2
1 1
2 1
2 1
2 2
2 1
2 1
2 1
2 1
2 2
1 2
2 2
1 1
1 2
1 2
1 2
1 2
2 2
2 1
1 1
1 2
1 1
1 1
2 1
2 1
2 1
1 1
2 2
2 1
1 2
1 1
2 1
1 1
1 1
1 2
1 2
2 2
1 2
1 2
1 2
2 1
1 1
1 1
2 1
1 2
1 1
1 2
2 2
1 1
2 1
2 2
2 1
1 1
1 1
1 2
1 2
2 1
1 2
1 1
2 1
2 2
1 2
1 2
2 1
2 1
2 2
1 2
1 2
1 1
2 1
2 1
1 1
2 1
2 1
2 1
1 1
1 1
2 1
2 2
1 1
2 2
1 2
1 2
1 1
2 2
1 2
1 1
1 1
2 2
1 1
1 1
1 1
2 2
1 1
2 2
2 1
2 2
2 1
2 2
2 1
1 2
1 2
2 1
2 2
2 1
2 1
1 2
2 1
2 2
1 2
2 1
1 2
1 1
1 2
2 2
1 1
1 2
2 2
1 2
1 2
1 1
2 2
1 1
1 2
1 1
1 1
2 2
1 2
2 2
2 2
1 1
1 1
1 1
2 1
2 1
2 2
1 1
1 2
1 1
2 1
2 1
2 1
2 1
2 1
2 1
1 2
2 1
2 2
2 1
1 1
1 1
2 1
1 2
1 1
2 1
2 1
2 1
1 1
2 2
2 1
1 2
1 1
2 1
1 1
1 2
1 2
2 2
2 1
2 2
1 2
2 2
1 2
1 1
1 2
2 1
1 2
2 1
1 1
2 1
1 2
2 1
1 2
2 2
2 1
2 1
2 2
1 1
1 1
2 2
1 1
1 1
2 2
2 2
2 1
1 2
1 2
2 2
1 1
2 1
2 2
2 2
2 2
2 2
1 2
1 2
1 2
2 2
1 2
1 1
1 1
1 1
2 2
2 1
1 1
2 1
2 2
1 2
2 1
2 2
1 2
2 2
1 2
2 1
1 1
2 2
2 2
2 1
1 1
1 2
1 1
1 1
2 1
2 1
2 1
2 1
1 2
1 1
2 1
1 2
2 1
2 1
2 1
1 1
2 2
2 2
2 2
2 2
1 1
1 1
1 2
1 2
2 2
1 1
1 1
2 1
2 1
2 2
1 1
1 1
1 2
2 2
2 2
1 1
2 2
1 2
2 1
1 1
1 2
1 1
1 2
1 2
2 2
1 2
1 1
2 1
1 1
2 1
2 2
1 2
1 1
1 1
1 2
1 2
1 1
2 2
2 1
1 2
1 1
2 2
1 2
1 2
1 2
2 1
2 1
2 1
2 2
1 2
1 1
2 1
2 2
2 1
1 2
2 2
2 1
1 1
1 2
1 1
2 1
1 2
1 1
2 2
2 1
2 2
1 1
2 1
2 2
1 2
1 2
2 1
2 1
1 2
1 1
2 2
2 1
2 2
1 1
2 2
2 1
2 2
1 1
2 1
1 1
2 1
1 1
2 2
2 2
1 1
1 1
2 1
2 2
2 1
2 1
1 1
2 2
1 1
2 1
1 2
1 1
1 1
1 2
2 2
2 2
1 1
2 1
1 2
2 1
1 2
2 1
1 2
1 1
2 1
1 2
2 2
2 1
2 1
1 1
1 2
1 1
2 2
2 2
2 2
1 1
1 1
2 1
2 2
2 1
1 2
1 2
2 1
2 1
2 2
2 2
1 2
2 1
2 2
1 1
2 1
1 2
1 2
2 1
1 1
1 1
1 2
2 2
1 2
2 2
2 2
2 2
2 2
2 1
1 1
1 2
2 2
1 1
2 1
1 2
2 1
2 2
2 2
2 2
1 2
1 2
1 2
1 1
1 1
2 2
1 1
1 1
1 2
2 2
2 2
2 1
2 1
2 1
1 2
2 2
1 1
1 1
2 1
1 2
1 1
2 1
2 2
1 1
2 2
1 2
1 2
2 1
2 2
1 1
2 2
1 1
1 1
1 2
1 1
1 1
2 2
1 2
1 1
1 1
2 1
2 1
2 2
2 2
1 1
1 1
2 1
1 1
1 2
1 2
2 1
1 2
2 1
2 1
1 1
2 2
2 1
2 1
2 2
1 1
1 1
2 2
1 1
2 2
1 2
2 1
1 2
2 1
2 1
1 2
1 2
1 1
1 1
1 1
2 2
2 1
1 1
1 1
1 1
1 1
2 2
2 1
1 2
2 2
1 2
2 2
1 2
2 1
1 2
1 1
2 2
1 2
2 1
2 1
2 1
2 2
1 1
1 2
1 1
1 2
2 2
2 2
1 1
2 1
1 1
1 2
1 1
2 2
2 1
1 1
1 2
2 1
1 1
1 1
1 1
2 2
2 2
1 1
2 2
2 2
2 1
2 2
2 1
1 1
2 2
1 2
2 1
1 1
2 1
1 1
2 1
2 2
2 1
2 1
2 1
2 2
1 2
1 1
2 1
2 2
2 2
2 1
2 1
1 2
1 2
1 2
2 1
2 2
2 1
2 1
1 1
2 1
2 2
2 1
1 2
2 2
2 1
1 2
1 1
2 2
1 1
2 1
1 2
2 2
1 1
2 2
1 2
2 2
2 1
1 1
1 1
1 2
1 2
2 1
1 1
2 1
1 2
2 1
1 1
2 1
1 1
2 2
2 1
2 2
1 2
1 1
1 1
1 1
2 2
2 1
2 1
2 2
1 2
1 2
2 2
2 2
1 1
2 1
2 2
1 1
1 2
2 1
2 2
2 2
2 2
2 1
1 2
2 2
2 1
1 2
2 2
1 2
2 1
2 2
1 1
2 2
2 2
2 1
1 1
1 1
2 2
1 1
1 2
2 1
1 2
1 1
2 1
1 2
2 1
1 2
2 2
2 1
1 2
1 1
1 2
1 1
2 2
1 1
1 2
1 2
2 2
2 1
1 2
1 1
2 2
1 1
2 1
1 2
2 2
2 1
2 1
2 1
1 2
2 1
1 2
2 2
1 1
1 2
2 2
1 1
2 1
1 1
1 2
1 1
1 1
1 2
2 1
1 2
2 2
1 2
2 1
2 1
2 1
2 1
2 1
1 2
1 1
1 2
2 1
2 2
1 1
1 2
1 2
2 1
2 1
1 1
1 2
1 1
1 1
1 2
1 1
2 2
1 2
1 1
2 2
1 1
2 1
1 1
1 1
2 1
2 1
1 2
2 1
1 2
2 2
2 2
1 1
1 1
2 2
1 1
2 2
2 1
2 2
1 2
2 2
1 2
1 2
2 2
1 2
2 2
1 1
1 2
2 1
2 1
2 1
2 1
1 1
2 1
1 2
1 1
1 1
2 2
1 1
2 1
1 2
1 2
1 1
1 2
2 2
2 2
1 1
1 1
2 2
1 1
2 2
1 1
2 2
2 2
1 2
2 1
1 2
1 2
1 2
1 1
2 1
2 1
1 1
1 2
2 1
1 1
1 2
1 2
2 2
1 2
2 1
2 1
2 1
2 1
1 1
1 1
1 2
1 2
2 2
2 2
1 1
1 2
2 1
2 2
1 1
2 1
2 2
2 2
1 1
1 1
2 1
1 2
1 2
1 2
2 2
1 1
2 2
2 1
1 1
2 1
2 2
2 1
1 2
2 2
1 2
1 2
2 1
1 1
1 1
1 2
1 1
1 2
1 2
1 1
2 1
1 1
1 1
1 2
2 1
2 1
1 1
2 2
2 1
2 1
1 1
1 1
1 2
2 1
2 2
1 2
2 1
1 1
1 2
1 2
2 1
2 1
1 1
1 2
1 1
2 2
2 1
2 2
2 2
2 2
1 2
2 2
1 1
2 2
2 1
1 1
1 2
1 1
2 1
1 1
1 2
1 1
2 2
1 1
1 1
1 1
2 2
2 1
1 1
2 1
1 2
2 2
2 2
1 1
1 1
1 1
1 2
1 2
2 2
2 2
2 1
2 1
2 2
1 2
1 1
1 1
2 1
2 2
2 1
2 1
2 1
2 2
1 1
2 1
1 2
2 2
2 2
1 1
2 1
2 2
1 2
1 1
2 2
2 1
2 1
2 2
1 2
2 2
1 1
1 1
1 1
1 1
2 2
2 2
1 2
1 2
2 2
2 1
2 2
1 2
2 2
2 1
2 2
1 1
1 2
2 1
2 2
1 1
1 1
2 2
1 1
2 2
1 1
1 1
2 1
1 1
1 2
1 1
2 2
2 1
2 2
2 2
1 2
2 1
2 2
1 1
2 1
1 1
1 2
2 1
1 2
1 2
1 1
2 2
2 1
2 2
1 1
1 2
2 1
2 1
1 1
1 2
2 2
2 2
2 1
2 1
1 1
2 1
2 2
2 2
2 1
1 1
2 2
1 2
1 2
1 1
2 2
2 1
1 1
2 1
2 1
2 1
2 1
1 1
1 2
2 1
2 2
2 1
2 2
1 2
2 1
2 1
1 1
2 2
2 2
1 2
1 1
2 1
1 2
2 1
2 1
2 2
2 2
2 1
2 1
2 1
2 1
1 1
1 1
1 1
1 2
2 1
1 2
1 2
1 1
1 1
1 2
2 1
2 1
2 1
2 2
2 1
2 1
2 2
2 1
1 1
1 2
2 2
1 1
1 2
1 2
2 2
2 2
2 1
2 2
1 2
1 2
2 1
2 2
1 1
2 1
1 2
2 1
2 1
2 2
2 2
2 1
2 2
2 2
1 1
1 2
1 2
2 1
2 1
2 2
1 2
1 2
2 1
1 1
2 2
1 1
2 2
2 2
1 1
1 2
2 1
2 1
2 1
1 2
1 2
2 1
1 1
1 1
1 1
1 1
2 1
2 1
2 2
2 1
2 2
1 1
1 2
2 2
2 1
1 2
2 1
2 2
2 1
1 2
2 2
2 1
2 1
2 2
1 1
1 1
1 2
2 1
1 1
2 2
2 1
1 2
2 1
2 1
1 1
1 1
1 2
2 2
1 1
2 1
2 2
1 2
1 1
2 2
2 1
2 2
2 1
2 1
2 2
2 1
2 1
2 1
2 1
1 1
1 1
2 2
1 2
2 2
2 1
1 2
2 1
1 1
2 2
1 2
2 1
1 1
1 1
2 1
1 2
1 1
1 2
2 1
1 1
2 1
2 1
1 2
1 1
2 2
1 2
1 2
2 1
1 1
1 2
1 2
1 2
2 1
1 2
1 2
2 1
1 2
1 2
2 2
1 2
2 1
2 2
1 2
1 1
1 1
1 2
2 1
1 1
2 2
1 2
2 2
1 1
1 1
2 1
1 2
1 1
1 2
2 2
1 2
2 2
1 2
2 2
2 2
2 1
2 1
2 1
1 1
1 2
1 2
1 2
2 1
2 1
1 2
1 1
1 1
2 2
1 2
1 1
1 1
2 2
1 1
2 1
1 2
1 1
1 2
2 1
1 2
1 2
1 1
2 2
2 2
2 2
2 2
1 2
1 1
2 2
1 2
1 2
1 1
1 1
1 1
2 2
1 1
2 2
1 2
1 1
1 2
2 1
2 2
1 2
1 1
1 1
1 2
2 1
2 1
2 2
1 1
2 2
2 2
2 1
1 2
2 1
1 2
2 1
1 2
2 2
2 2
2 2
2 1
1 2
2 2
2 1
2 1
2 1
1 1
2 2
1 2
2 2
2 1
1 2
2 2
2 1
1 1
2 1
1 1
1 1
1 2
2 1
2 2
1 2
1 2
1 1
1 1
2 2
2 2
1 1
2 1
2 2
2 2
2 1
2 1
1 2
1 1
2 2
2 2
2 1
1 1
2 2
1 2
2 2
1 2
2 2
1 2
1 1
2 1
2 2
2 1
2 1
2 1
2 1
2 1
1 1
2 1
1 2
1 2
2 1
1 1
2 2
1 1
1 2
1 2
1 1
1 2
2 2
2 1
1 2
1 2
1 2
1 2
2 1
1 2
2 1
2 2
2 2
1 1
2 2
2 1
2 2
2 2
1 2
1 2
1 1
2 1
2 2
2 1
1 2
1 2
2 2
1 1
2 1
2 2
2 2
2 1
2 2
2 2
1 1
1 1
2 2
2 2
2 1
1 2
2 1
2 1
2 1
2 1
2 1
1 2
1 1
2 1
1 1
2 1
1 2
2 1
2 2
1 1
2 2
1 1
2 1
2 1
2 2
2 2
1 1
2 1
2 2
1 2
2 1
2 2
2 2
2 1
1 2
2 2
1 1
2 1
2 2
1 2
1 1
1 2
1 1
1 1
2 2
2 1
1 1
2 2
2 2
2 1
2 2
1 1
2 2
1 2
1 1
2 1
2 1
2 2
1 2
1 1
2 1
2 2
2 1
2 2
2 2
1 2
1 1
2 2
2 1
1 1
1 1
1 1
2 1
1 1
1 1
1 1
1 2
2 1
1 2
2 1
2 1
1 1
1 2
1 2
2 2
2 2
1 2
2 2
1 1
1 1
1 1
2 2
2 2
1 2
1 1
2 1
2 2
1 2
1 2
2 1
1 2
1 2
1 2
1 1
1 1
2 2
2 2
2 2
2 1
2 2
1 1
1 1
1 1
1 2
1 2
2 1
2 1
1 2
2 2
2 2
2 1
2 2
2 1
1 1
2 2
1 2
2 1
1 2
2 1
1 2
1 2
2 2
2 1
1 1
1 1
2 1
1 2
2 1
1 1
1 2
2 1
1 2
1 1
2 1
2 2
1 2
1 1
1 2
1 2
2 1
2 2
2 2
1 2
2 2
2 2
1 2
2 1
1 1
1 2
1 1
1 1
1 2
2 2
2 2
2 1
2 2
2 2
2 1
2 2
1 2
1 2
1 2
1 2
1 2
2 2
1 2
2 1
1 1
1 2
2 1
2 2
2 1
1 2
2 1
2 1
1 1
1 1
2 1
1 1
2 2
2 1
2 2
1 2
2 1
1 1
1 2
2 1
1 1
2 1
2 2
1 2
2 2
2 1
1 2
1 1
1 1
1 2
2 1
1 2
2 2
2 1
1 1
2 2
2 2
2 1
2 2
2 1
2 2
1 1
2 2
1 2
2 1
2 2
2 2
2 2
2 1
2 1
1 1
1 1
2 1
2 2
1 1
1 1
1 2
1 2
1 2
1 2
2 2
2 2
1 1
1 1
2 2
1 2
1 1
1 2
1 2
2 2
2 2
2 1
1 2
2 1
2 1
1 2
2 1
1 1
2 2
2 2
1 1
2 2
2 1
1 2
2 2
1 2
2 2
2 1
2 1
2 1
2 2
2 1
1 1
2 1
2 1
1 1
2 1
1 1
2 2
1 1
2 1
2 1
2 1
2 2
2 2
2 1
2 1
1 1
2 1
1 1
2 2
1 1
2 1
1 1
1 1
2 1
2 1
2 2
2 2
1 1
2 1
1 2
1 1
2 2
2 1
2 2
1 1
2 2
2 2
1 1
2 1
1 2
2 1
2 2
1 1
1 2
1 2
2 1
2 2
2 1
2 1
1 1
2 2
2 2
2 2
2 2
1 2
2 2
1 1
2 1
1 2
2 1
1 1
1 1
2 2
2 1
1 2
1 1
2 1
2 2
2 2
1 2
1 1
2 2
1 1
1 2
2 1
1 2
1 1
2 2
1 2
2 1
2 2
1 2
1 1
2 1
2 1
1 1
2 1
2 2
1 1
2 1
1 2
2 2
2 1
1 1
1 2
1 2
2 1
1 1
1 1
1 1
1 1
1 1
1 2
1 2
1 2
2 1
1 1
1 1
1 1
1 2
1 2
2 1
1 1
1 2
2 1
2 2
1 1
2 1
2 2
2 1
2 2
1 2
1 2
2 1
1 1
1 1
1 2
1 2
1 2
2 1
2 2
1 1
2 2
1 1
1 2
2 2
1 2
1 1
1 2
1 1
1 1
2 2
1 2
2 2
2 2
2 2
2 2
1 1
2 2
1 1
2 1
1 2
1 1
2 1
1 1
1 1
1 1
1 1
2 2
2 2
1 2
1 1
2 2
2 1
1 2
2 1
1 1
1 1
1 1
2 2
2 2
2 1
1 1
2 1
2 2
2 2
1 1
1 2
2 1
2 2
2 1
1 1
1 1
2 2
1 2
2 2
2 1
2 2
2 1
1 2
1 2
2 1
1 2
1 2
1 1
2 2
1 2
1 2
2 2
2 2
2 2
2 1
2 1
2 2
1 2
1 1
1 1
2 1
1 1
1 1
2 2
2 2
2 1
2 1
2 1
1 1
1 1
2 1
1 2
1 2
2 1
2 1
2 2
2 1
1 1
1 2
2 2
2 2
2 1
2 1
1 1
2 1
2 2
2 2
2 1
1 2
2 2
1 1
2 1
2 1
1 1
1 2
1 2
2 1
2 1
2 2
1 1
1 1
2 1
2 2
1 1
2 1
1 2
1 2
1 1
1 1
1 1
2 2
2 2
1 2
2 2
2 1
2 2
2 2
1 1
1 1
1 2
2 2
2 2
2 1
2 1
1 2
2 1
1 1
2 2
1 2
2 1
1 2
1 1
2 2
2 1
1 1
2 1
1 2
1 1
2 2
1 2
1 2
1 2
2 1
1 1
1 2
1 2
1 1
2 1
2 2
2 2
2 2
1 2
1 1
2 1
1 2
1 2
1 2
1 2
1 2
2 1
1 1
2 2
2 2
2 1
1 2
1 2
1 2
1 2
1 1
2 2
2 2
1 2
2 1
1 1
1 2
1 2
1 1
2 1
2 2
2 1
1 1
1 1
2 2
2 2
1 1
2 1
2 2
2 2
1 2
2 2
2 1
2 2
1 1
2 1
2 1
1 1
2 2
1 2
2 2
2 1
2 2
1 2
2 2
1 1
2 2
1 1
2 1
2 2
2 1
1 2
1 1
1 1
1 2
1 2
2 1
1 2
2 1
1 1
2 2
1 2
1 1
1 2
2 2
2 1
1 1
2 1
2 1
2 1
2 2
2 2
2 1
2 2
1 2
1 2
2 2
2 1
2 2
1 2
1 2
1 1
1 2
2 1
1 2
1 2
1 2
2 2
1 2
1 1
2 1
2 2
2 2
1 2
1 2
2 2
2 1
1 2
2 2
1 1
1 1
2 1
1 2
1 2
2 2
2 2
1 1
1 1
2 2
2 1
2 1
1 1
2 2
2 2
2 2
2 2
1 2
1 2
2 2
2 1
2 2
2 2
1 1
2 2
1 2
1 1
1 2
2 2
2 1
2 2
2 1
1 2
2 1
2 2
2 1
2 1
1 1
1 2
1 1
1 2
2 2
2 1
1 1
1 1
1 1
2 2
2 2
1 2
2 1
2 2
1 2
2 1
2 2
1 2
1 1
1 1
2 2
1 1
2 2
2 1
1 2
2 1
2 1
1 1
1 1
1 1
1 2
2 1
1 1
1 2
2 1
2 2
2 2
1 1
1 2
2 2
1 1
1 2
2 1
2 1
2 2
2 2
2 1
1 2
1 2
2 2
1 1
2 1
2 1
1 1
1 1
2 2
1 1
2 1
2 2
1 2
2 2
1 2
2 1
2 2
1 1
2 1
2 1
1 1
1 1
2 1
1 1
1 1
2 2
2 2
1 1
1 1
2 1
1 2
2 1
2 2
2 2
2 1
2 1
1 1
2 1
2 1
2 2
1 1
2 1
2 1
1 2
2 1
1 1
2 2
2 2
1 1
2 1
2 1
2 2
2 1
2 2
2 1
1 1
1 2
2 2
1 1
2 1
2 1
2 1
1 2
2 2
2 2
2 1
1 2
1 2
2 2
2 1
2 2
2 2
2 2
1 2
2 2
2 1
1 1
2 1
1 1
1 2
1 1
2 1
1 2
2 1
2 2
2 2
2 1
1 2
1 1
1 1
1 1
2 1
1 2
1 1
1 1
1 1
2 2
1 2
2 1
1 2
2 1
1 1
1 2
1 1
1 1
2 2
1 1
1 2
1 1
2 1
2 2
2 2
2 2
2 2
2 2
1 2
1 1
1 2
1 2
1 2
1 1
1 1
1 2
2 1
2 1
1 2
1 1
2 1
1 2
2 2
1 1
2 1
1 1
1 2
1 1
1 2
2 2
1 2
1 1
2 2
1 1
1 1
2 1
1 2
2 2
1 1
2 1
1 2
1 1
2 1
1 1
1 1
2 2
1 1
2 2
2 2
2 2
2 1
2 2
2 2
2 1
2 1
2 2
2 2
2 1
1 2
1 2
2 1
2 2
2 1
1 2
2 2
2 1
1 2
1 1
2 1
1 1
1 1
1 1
2 1
1 2
1 1
1 1
1 2
1 2
2 2
2 2
2 1
1 1
1 1
1 1
2 2
1 1
2 1
1 1
2 1
2 2
1 2
1 1
1 2
1 2
1 2
2 2
1 1
2 1
1 2
1 2
2 1
1 1
2 2
2 1
2 1
2 1
2 2
2 1
1 1
2 1
2 2
1 1
1 2
2 1
1 2
1 1
2 1
2 2
1 1
1 2
1 1
1 1
2 2
2 2
1 2
2 1
1 2
2 2
1 2
2 2
2 1
1 2
2 1
2 2
1 1
1 1
2 2
2 1
1 2
2 1
1 1
2 2
1 2
2 2
1 1
1 1
2 1
2 1
1 2
1 1
2 2
2 1
2 2
1 1
2 1
1 1
2 2
2 2
2 2
1 1
2 2
1 2
2 1
1 2
2 1
1 2
1 1
1 1
2 2
2 1
2 2
1 1
1 1
1 1
1 2
1 2
1 2
1 1
1 2
1 2
2 1
2 1
1 2
1 2
2 2
2 1
2 1
2 1
2 1
2 2
1 2
1 2
2 1
2 2
2 1
1 2
2 1
1 2
1 1
1 2
2 2
2 1
1 2
2 1
2 2
1 2
2 1
1 2
2 2
1 2
2 2
2 2
2 1
2 1
1 1
2 1
1 1
2 1
1 2
1 1
2 2
2 1
2 1
1 1
1 1
2 1
2 1
1 1
2 1
2 2
1 2
2 2
1 1
1 1
1 1
1 2
2 2
1 2
2 2
1 2
1 1
1 2
2 2
1 2
2 1
1 1
2 2
2 1
1 2
1 2
1 1
2 1
2 1
2 1
2 2
1 1
2 1
2 2
1 1
1 2
2 1
1 2
1 1
2 1
1 2
1 2
1 1
2 1
2 2
1 2
1 1
2 2
2 1
2 1
2 2
2 1
1 2
2 2
1 2
2 2
1 1
2 1
1 1
1 1
1 2
2 2
2 1
2 1
2 2
1 2
1 2
1 2
1 2
1 2
1 2
1 1
1 1
1 1
2 1
1 1
1 1
1 2
2 1
1 1
2 2
1 2
1 2
1 1
2 1
1 1
1 1
2 1
2 2
1 2
2 1
1 1
2 1
1 2
1 1
2 2
2 2
2 1
2 1
2 2
2 1
2 2
1 2
1 1
2 2
1 2
2 1
2 2
2 2
2 1
1 1
1 1
1 2
1 1
2 1
1 2
1 2
1 1
2 2
2 1
2 2
1 2
1 2
2 1
2 2
2 1
1 1
2 2
1 2
2 1
2 2
1 1
2 1
2 1
2 1
2 2
1 2
2 1
2 1
1 2
2 2
1 2
1 1
1 2
2 2
1 2
2 1
1 1
2 2
2 2
1 1
1 2
2 2
2 1
1 1
2 2
1 2
2 1
2 2
1 1
2 1
1 1
1 1
1 2
1 1
1 1
2 1
2 2
1 2
1 2
1 2
2 1
2 1
1 2
2 1
2 2
2 1
2 2
2 1
2 1
2 2
1 1
2 1
2 2
2 1
2 2
2 2
1 2
1 2
2 1
2 1
2 2
2 2
2 2
2 1
1 2
2 1
1 1
1 2
2 1
2 2
1 2
2 1
1 2
1 1
1 2
2 2
2 1
1 2
2 1
2 1
1 2
1 1
1 1
1 2
2 1
2 1
2 1
2 2
2 2
1 1
2 1
1 2
2 2
2 2
1 2
2 1
1 2
1 1
1 1
2 2
1 2
2 2
1 2
1 2
1 1
2 2
2 2
1 2
2 2
1 2
2 2
2 1
1 1
1 1
1 1
1 2
2 2
2 1
2 1
2 2
2 1
1 1
2 2
1 1
2 2
1 2
1 1
2 1
1 2
2 1
1 1
2 1
2 2
1 1
1 1
2 2
2 2
1 2
2 2
2 1
2 1
2 2
2 1
2 1
1 1
2 1
2 2
1 2
1 1
2 2
1 2
1 1
2 1
1 1
1 1
1 2
1 1
1 1
2 1
2 2
2 2
1 2
2 1
1 2
1 2
1 2
1 2
2 1
1 2
1 2
2 1
1 2
2 2
1 2
1 2
1 2
1 1
2 1
2 2
2 2
1 1
1 2
1 2
1 2
2 1
1 2
2 2
1 1
1 1
2 2
1 1
1 1
2 2
2 2
2 2
2 2
1 2
2 1
1 1
2 2
2 2
2 2
2 2
2 2
1 2
2 1
1 1
1 2
1 1
1 1
1 1
2 2
1 2
2 1
1 1
2 1
2 2
2 1
2 1
1 1
1 2
1 2
1 1
2 2
1 2
1 2
1 2
1 1
1 1
1 1
1 1
2 1
1 1
2 2
2 1
1 2
2 1
2 2
1 2
2 2
2 1
1 2
2 1
2 2
2 2
2 2
2 1
1 2
1 2
2 2
2 1
1 2
1 2
2 1
2 1
1 1
1 1
2 1
2 1
1 2
2 1
2 2
1 1
1 2
1 1
2 1
1 2
2 2
2 1
1 1
2 2
1 2
1 2
1 2
1 2
2 1
1 2
2 2
1 2
1 1
1 2
1 1
1 1
1 2
2 1
1 2
2 1
2 2
1 1
1 1
2 1
1 1
1 1
1 2
1 1
1 2
2 2
2 2
2 1
1 1
2 1
1 2
1 1
2 2
1 2
1 1
2 2
1 2
2 1
1 2
1 2
2 2
2 2
2 2
1 2
1 2
2 2
1 2
1 1
2 1
1 1
2 2
2 2
1 2
2 1
1 1
1 2
2 1
1 2
2 1
2 1
1 1
2 2
1 2
1 2
2 1
1 2
2 2
2 1
1 2
1 2
2 1
1 2
1 1
1 1
2 1
1 1
1 2
2 2
2 1
1 1
2 1
2 1
1 2
1 1
2 1
2 2
1 1
2 2
1 2
2 2
2 2
1 2
2 2
1 2
2 2
1 2
2 1
2 1
2 2
2 1
1 1
1 2
1 1
1 1
1 2
1 1
2 2
2 1
2 1
2 1
2 1
1 2
1 1
2 2
2 1
1 2
1 2
1 2
2 1
2 1
2 2
2 1
1 1
2 1
1 1
2 2
1 2
1 2
1 1
1 2
2 1
1 1
2 1
2 1
1 2
1 2
1 2
2 2
2 1
1 1
1 2
1 2
2 2
2 2
1 2
1 1
2 1
1 2
1 1
2 2
2 2
1 2
1 1
1 1
2 2
1 2
2 2
1 2
2 1
1 1
2 1
2 1
1 2
1 1
2 2
2 2
1 1
2 2
2 2
1 1
2 2
1 1
1 2
1 1
1 2
1 2
2 1
1 1
2 1
2 2
1 1
2 1
1 1
2 2
2 1
2 2
2 2
1 2
2 2
2 1
2 2
1 1
2 2
2 1
1 2
1 1
1 1
1 1
2 1
1 1
2 1
2 1
1 2
2 2
1 1
2 2
1 2
2 1
1 1
2 2
2 2
1 2
2 2
1 2
1 2
2 1
2 2
2 1
1 2
1 1
2 1
2 1
1 1
1 2
2 2
1 1
1 2
2 2
2 1
1 1
2 1
1 2
1 1
1 2
2 2
1 1
2 1
2 2
1 1
2 1
2 1
2 1
1 2
2 1
2 2
1 2
2 1
2 1
2 1
2 2
2 1
1 1
2 2
2 1
1 1
2 1
2 2
2 2
1 1
2 1
1 2
1 1
1 2
1 2
1 2
1 1
2 1
1 1
1 1
1 2
2 1
2 1
1 1
1 2
1 1
1 1
1 2
2 2
1 1
1 2
2 2
1 2
1 1
1 1
1 1
2 2
1 2
2 2
2 2
1 2
1 1
1 1
1 1
1 2
2 2
1 1
1 2
2 2
2 2
1 2
1 1
1 1
2 2
1 1
1 1
2 1
1 1
2 2
2 2
1 2
1 1
2 1
2 1
1 2
1 1
2 2
2 1
2 1
1 2
1 1
1 1
1 1
2 1
2 1
2 1
1 1
1 1
2 1
1 1
2 2
2 1
1 1
1 2
1 2
1 2
2 1
2 1
1 2
2 2
1 1
2 1
2 1
2 1
1 1
2 2
1 1
2 1
2 2
1 2
1 2
1 1
1 1
2 2
2 2
2 2
1 2
1 1
1 1
1 1
1 2
2 2
2 2
2 2
2 2
1 2
1 1
1 2
2 1
1 1
1 2
1 1
1 2
1 1
2 1
1 1
2 1
2 2
1 2
2 2
1 1
1 2
2 1
1 2
2 1
1 1
1 2
1 1
2 1
1 1
1 1
2 2
2 1
1 1
1 2
1 1
2 1
1 1
1 1
1 2
1 2
1 2
2 2
1 1
2 2
1 1
1 2
2 1
2 2
1 2
2 1
1 2
2 2
1 2
2 1
2 2
1 1
2 1
2 1
1 2
2 2
1 1
1 1
1 2
1 1
1 1
2 2
2 1
2 1
2 1
2 1
2 1
2 1
1 2
1 1
1 1
1 1
1 2
1 2
1 1
2 2
2 1
1 2
1 2
1 2
1 1
1 1
1 1
2 2
1 1
1 1
2 2
1 1
1 2
2 1
2 1
1 2
2 2
2 1
1 2
2 2
1 2
2 1
2 1
2 1
2 1
2 1
2 1
2 2
1 1
1 2
1 1
2 1
2 1
2 2
2 1
2 2
1 2
2 2
2 1
2 2
2 2
1 2
1 2
1 1
1 1
1 2
2 2
1 1
1 2
2 1
2 1
2 1
2 1
1 2
1 1
1 1
2 2
2 2
1 2
1 2
1 1
1 1
1 1
1 1
1 2
1 2
1 1
2 2
2 1
2 1
2 2
2 1
1 2
1 2
1 2
2 2
1 1
1 1
1 1
2 1
2 2
1 1
2 1
2 1
1 2
1 1
1 1
2 1
1 1
2 2
1 1
1 2
1 2
2 1
1 2
2 1
2 2
2 1
1 1
2 1
1 1
1 1
2 1
2 2
2 2
2 1
2 2
2 2
1 2
1 1
2 2
2 1
1 2
1 1
2 2
2 1
1 2
2 2
2 2
2 2
1 2
2 2
2 2
1 1
1 2
1 1
1 2
2 2
2 2
1 2
1 1
1 1
1 1
1 2
1 2
2 1
2 2
1 2
2 2
2 1
1 2
1 2
2 1
1 1
2 2
1 2
1 2
2 1
2 2
2 1
1 1
1 2
1 2
2 1
2 1
2 2
1 2
1 1
2 2
2 1
2 2
2 1
2 2
1 1
1 1
2 1
1 1
1 1
1 2
1 2
1 1
1 1
1 1
2 2
2 2
2 1
1 2
2 1
2 2
2 2
1 2
1 2
2 1
1 2
2 2
2 1
1 2
1 1
1 2
1 1
1 2
1 1
1 2
2 2
1 1
1 2
2 1
2 2
1 2
2 2
2 1
1 1
1 2
2 1
1 2
2 1
1 2
1 1
2 2
2 1
2 2
2 2
1 2
2 1
1 2
1 1
2 2
1 2
2 2
2 1
2 1
1 1
2 1
1 1
1 1
2 1
1 2
1 2
2 2
2 2
2 2
1 1
2 1
2 2
2 2
2 2
2 2
2 1
1 2
2 1
2 1
2 1
1 1
1 2
1 1
1 1
2 1
2 2
2 2
2 2
2 1
2 2
2 2
2 2
2 1
2 2
1 2
2 1
1 1
2 2
2 1
2 1
2 2
1 2
2 2
1 1
2 1
1 2
1 1
2 2
1 1
2 1
2 2
1 2
2 2
1 2
1 1
2 1
2 2
1 1
1 1
1 1
1 1
2 1
1 2
2 1
2 1
1 2
2 2
1 2
2 1
2 1
1 1
2 1
2 1
1 2
1 1
1 2
1 1
2 1
2 2
1 1
1 1
1 2
2 1
2 1
2 1
1 2
1 1
1 2
1 1
1 2
1 1
2 1
2 2
2 1
1 2
1 2
1 1
2 2
1 2
1 2
2 2
1 1
2 1
2 1
1 1
1 2
2 1
2 2
2 2
1 1
1 2
1 1
1 2
2 1
2 2
1 2
2 2
2 2
1 1
2 2
1 2
1 1
2 1
1 2
2 1
2 1
2 2
2 2
2 2
1 1
2 2
1 1
1 2
2 1
1 2
1 1
1 2
1 1
2 2
1 1
2 2
1 1
2 2
1 1
1 1
1 2
1 2
2 1
1 1
1 2
1 2
2 1
2 2
2 1
2 2
1 1
2 1
2 2
2 1
2 2
1 1
1 2
1 1
2 2
2 2
2 1
1 2
1 2
2 2
1 2
1 1
1 1
2 1
1 1
1 2
2 2
2 1
2 2
2 2
1 2
1 2
2 2
2 1
1 2
1 2
2 1
1 1
2 1
2 1
2 1
1 1
2 1
2 2
1 2
2 1
2 1
1 2
2 1
2 1
1 1
2 1
2 1
2 1
2 2
2 1
2 2
2 1
1 2
1 2
1 1
1 2
1 1
2 1
1 2
2 1
2 2
1 2
2 1
1 2
2 2
1 2
1 2
2 1
2 2
1 2
2 2
1 1
1 2
2 2
2 2
2 2
1 1
2 1
2 1
2 1
1 2
1 1
1 2
1 1
2 1
2 2
1 1
2 1
1 1
2 1
1 2
1 1
2 1
1 1
1 2
2 1
2 2
1 1
2 1
1 1
2 1
1 1
1 2
1 1
1 1
1 1
2 1
1 2
2 2
2 2
2 2
1 2
2 1
2 1
2 2
1 1
2 2
1 1
1 2
2 2
2 2
1 1
1 2
2 1
2 1
2 2
2 2
2 2
2 1
1 1
1 2
2 2
1 1
2 1
1 2
2 1
2 2
1 2
1 2
2 1
1 2
1 1
2 2
1 2
2 2
1 1
2 1
2 1
1 1
2 1
2 2
1 2
1 1
1 2
2 2
1 1
1 2
2 2
2 1
2 1
2 2
2 1
2 1
1 1
2 2
1 2
1 2
2 2
2 2
1 2
1 2
1 1
1 1
1 1
1 1
1 1
2 1
2 2
2 2
1 1
2 1
2 2
2 1
1 2
1 1
2 1
2 1
2 2
2 1
2 1
2 1
2 1
1 2
2 2
2 1
2 1
2 1
2 2
1 2
1 2
1 2
2 2
1 1
2 1
1 1
2 1
1 2
1 2
2 2
1 2
2 1
1 2
1 2
1 1
2 2
1 1
1 2
1 1
2 1
2 2
2 2
2 2
1 1
1 1
2 1
2 1
2 1
2 2
1 1
1 1
2 2
2 1
1 2
1 2
1 2
1 2
2 1
1 1
1 1
1 2
1 1
1 2
1 2
1 1
1 1
1 1
1 1
2 2
2 2
2 1
1 2
2 2
1 2
1 2
1 2
1 1
1 2
1 1
1 1
1 2
1 1
2 2
2 2
1 2
2 1
2 2
1 1
2 2
1 2
1 1
1 2
1 2
1 2
1 1
1 1
2 1
1 2
2 2
1 2
1 2
1 1
2 2
2 2
2 1
1 1
2 1
2 1
1 1
2 1
2 2
2 2
2 2
2 1
1 1
2 2
2 1
1 2
2 2
1 1
2 1
1 1
2 1
2 1
2 1
1 2
2 2
2 1
1 1
2 2
1 1
2 2
1 1
1 1
1 2
1 1
1 1
1 1
2 2
1 1
2 2
1 2
1 2
2 2
1 2
2 1
2 1
1 2
2 2
1 2
2 1
2 2
2 2
2 1
1 2
2 2
2 2
1 2
2 2
2 2
1 2
1 1
1 2
2 2
2 2
1 2
1 2
2 1
2 2
2 1
1 1
1 2
2 2
1 1
2 1
2 2
1 1
1 2
2 1
2 2
1 1
2 2
2 2
1 2
1 1
2 1
2 2
1 2
2 1
2 1
1 1
1 2
2 2
2 2
2 1
2 1
2 1
2 1
1 1
1 2
2 1
2 1
1 1
1 1
2 2
1 2
1 1
1 2
1 1
2 2
2 2
1 2
2 1
2 1
2 1
1 2
1 1
1 1
1 1
1 1
2 1
2 2
2 1
2 2
2 2
1 2
2 2
2 1
2 2
2 2
2 2
1 1
2 2
2 2
1 1
2 2
1 1
2 2
1 1
1 1
2 2
1 2
1 1
2 1
2 2
1 2
1 2
1 2
2 1
1 1
2 1
2 1
2 1
1 1
2 1
2 1
1 1
1 1
2 2
1 1
2 2
1 2
2 2
2 2
2 2
1 1
1 2
1 1
1 1
2 1
1 2
1 1
1 2
1 1
1 1
1 2
2 2
2 2
2 1
2 2
2 1
1 2
2 1
2 2
2 1
2 1
1 1
2 2
1 2
2 2
1 1
2 2
1 1
1 2
1 2
2 1
1 2
1 2
1 2
2 2
2 2
2 1
1 1
2 1
1 1
1 2
1 2
2 2
2 2
1 1
2 1
2 2
1 1
1 1
2 2
1 1
2 1
2 1
2 2
1 2
2 2
2 2
2 1
2 1
2 1
1 1
2 1
2 2
2 1
1 2
2 2
1 2
2 2
1 1
1 1
1 1
1 2
1 1
2 1
2 1
1 1
2 1
1 1
2 1
1 2
2 1
2 2
2 1
1 2
1 1
2 2
2 2
1 1
2 2
1 1
1 2
1 1
1 1
2 1
1 2
2 1
1 2
2 1
1 1
2 2
2 2
2 2
1 2
2 2
1 2
2 2
1 2
1 2
2 1
2 1
2 1
2 1
2 2
1 2
2 1
1 2
2 2
1 1
2 1
1 2
1 1
1 1
2 1
2 1
1 2
2 1
2 2
1 2
2 2
1 1
1 2
2 2
1 1
1 2
2 1
1 1
1 2
2 1
1 2
1 1
2 1
2 2
1 1
1 1
2 1
2 1
1 2
1 1
1 1
1 1
1 1
1 1
1 2
1 2
2 1
1 1
1 1
1 2
2 2
1 2
1 1
2 1
1 2
2 2
1 1
2 1
2 1
1 2
1 2
1 2
1 1
2 1
1 1
2 1
2 2
2 2
1 2
1 1
2 1
1 1
2 2
1 1
1 2
1 1
2 2
2 1
2 2
2 2
2 2
1 1
2 1
1 2
2 2
1 1
1 1
1 1
2 2
1 1
2 1
2 1
2 1
1 1
2 2
2 2
1 2
1 1
1 2
2 2
1 2
1 1
2 1
2 2
1 2
2 2
2 2
2 2
2 2
2 2
1 2
2 1
2 2
2 1
2 1
1 2
2 2
2 1
2 1
1 1
1 1
1 1
1 1
1 1
2 2
2 1
2 1
1 2
1 2
2 2
1 2
2 1
2 1
2 1
1 1
2 2
1 2
2 2
1 2
2 1
2 1
2 1
2 1
1 2
2 1
2 1
1 1
1 2
2 2
1 1
2 1
1 1
2 2
2 1
1 1
2 2
2 2
1 1
2 1
1 1
1 2
1 1
1 1
2 1
1 2
1 2
2 2
1 2
2 2
1 1
2 2
2 1
1 1
1 1
2 2
2 2
2 2
2 2
2 2
1 1
1 1
2 1
1 2
1 1
2 1
1 2
2 2
1 1
1 2
1 1
1 1
2 2
2 2
2 2
1 2
1 1
2 1
1 2
1 2
2 2
2 1
1 2
1 2
1 1
1 1
1 1
1 2
1 2
1 2
1 2
2 2
1 1
2 2
1 1
1 2
2 2
2 2
2 2
1 1
1 1
1 1
1 1
2 2
2 1
1 1
2 2
2 1
1 2
2 2
1 1
2 1
2 1
1 2
1 1
1 1
2 1
1 2
1 1
2 2
2 1
1 2
2 1
2 1
2 1
2 1
1 1
1 2
2 1
2 1
2 2
2 1
1 1
1 1
1 1
2 1
2 1
1 2
1 1
2 2
2 1
2 2
2 2
1 2
1 1
1 2
1 2
1 2
1 1
1 2
1 1
1 1
2 2
1 2
1 2
2 1
2 1
2 2
1 2
1 1
1 2
2 2
1 1
2 2
1 1
2 2
1 2
2 1
1 1
1 1
1 2
2 1
2 1
2 2
2 1
1 2
2 1
2 2
1 1
2 2
2 1
1 1
1 2
2 1
1 2
1 1
2 2
2 2
1 1
1 1
1 1
2 1
2 1
2 1
2 1
1 1
2 2
2 2
2 2
2 2
1 1
2 2
1 2
1 2
1 2
2 1
1 1
1 2
1 1
2 2
1 2
1 2
2 1
1 1
2 2
1 1
2 2
2 2
1 2
1 2
1 2
2 1
1 2
2 1
2 1
1 1
2 1
2 2
1 2
1 1
1 2
2 1
1 2
2 1
1 2
1 1
2 1
2 2
1 2
1 2
2 1
2 2
1 2
2 1
2 2
2 1
2 2
2 2
1 2
1 1
2 1
1 1
2 2
2 2
2 1
1 2
2 2
2 1
1 2
1 2
2 2
1 2
2 1
1 2
2 2
2 2
2 2
1 1
2 1
1 2
1 2
2 1
1 2
2 1
2 1
2 1
1 1
1 1
1 2
1 2
1 1
1 2
1 2
1 1
1 1
2 2
1 2
2 1
2 2
2 1
1 2
2 2
2 2
2 1
1 2
1 2
1 1
2 1
1 1
1 2
1 2
2 2
2 2
2 2
2 2
2 1
1 2
2 2
2 1
1 1
2 2
2 2
2 1
1 2
2 1
2 1
2 1
1 1
2 2
1 2
2 1
1 1
2 1
2 1
1 2
1 2
2 2
2 1
2 1
1 1
2 2
2 1
1 1
1 1
1 1
2 2
1 1
1 1
2 2
2 2
2 2
1 1
1 2
2 2
1 1
2 2
2 1
1 1
2 1
1 2
1 1
1 2
2 1
1 1
2 1
1 1
1 1
1 1
1 2
2 2
2 1
1 1
1 1
2 1
1 2
2 1
1 2
1 2
2 1
2 1
1 2
1 1
2 1
2 2
1 2
1 1
1 1
2 2
2 1
2 1
1 2
1 2
2 1
1 2
1 1
2 2
1 1
2 2
1 2
1 1
2 1
2 1
1 1
1 2
2 2
1 2
1 1
2 1
1 1
2 2
2 1
1 2
1 2
1 2
1 2
1 2
2 2
2 2
2 1
1 1
1 1
1 2
2 1
1 2
1 1
2 2
2 1
2 1
2 1
2 2
1 1
2 2
2 1
1 2
1 2
2 2
2 2
2 1
2 2
1 1
2 2
2 2
2 1
1 1
1 2
1 2
2 1
1 1
2 2
2 1
1 1
1 1
1 1
1 2
2 1
2 2
2 2
2 1
1 1
1 2
1 1
1 2
1 1
2 1
2 1
2 1
2 2
1 1
2 1
2 2
2 1
2 1
2 2
1 2
1 2
2 2
1 1
2 1
1 2
2 1
1 2
2 2
1 2
1 2
1 1
2 1
1 1
1 2
1 2
1 2
2 1
2 2
1 1
1 2
1 2
1 1
2 1
1 1
2 2
2 1
1 1
2 2
2 2
1 2
1 2
1 1
2 2
1 1
1 2
1 2
2 1
1 1
2 2
2 1
2 1
1 2
1 1
1 2
1 2
2 2
1 2
2 2
1 1
2 1
1 2
2 2
1 1
1 2
1 2
2 2
2 1
2 2
2 1
1 2
1 2
2 2
1 2
1 2
2 1
1 1
1 1
1 1
1 2
2 1
1 2
2 2
1 1
2 1
2 1
1 2
1 1
2 1
1 2
2 1
1 1
2 2
1 2
1 1
2 2
1 2
2 2
2 1
2 2
1 1
1 2
2 2
1 1
2 1
2 2
2 1
2 1
1 2
2 2
1 2
2 2
1 2
2 2
2 2
1 2
1 1
1 1
1 1
2 2
1 2
1 1
2 2
1 1
2 2
2 1
1 2
2 2
1 1
1 2
1 1
1 2
1 2
1 1
2 2
1 2
1 2
1 1
1 2
2 1
2 2
2 1
2 2
1 2
1 2
2 1
1 2
1 1
1 1
2 2
1 1
1 1
2 1
2 2
2 1
1 1
2 1
1 1
2 1
2 2
2 1
1 1
1 1
2 2
2 1
1 1
2 1
1 1
2 1
2 2
1 2
1 2
2 1
1 1
1 1
2 1
2 2
1 2
2 1
1 2
1 1
1 2
2 1
1 1
1 1
1 1
1 2
2 2
1 2
1 1
2 2
2 1
2 1
1 2
2 1
2 1
2 1
1 1
2 1
2 1
1 2
2 1
1 2
2 2
2 2
2 1
2 2
2 2
2 1
2 1
1 2
1 2
1 2
1 1
1 2
2 2
1 2
1 2
1 2
1 1
1 1
2 2
2 1
1 1
2 2
2 2
1 1
2 2
1 2
1 1
2 1
2 2
2 2
2 2
1 2
1 1
1 2
1 1
1 1
2 1
1 2
2 1
1 1
2 1
2 2
2 1
1 2
2 2
1 2
2 2
2 2
1 2
1 1
2 2
2 2
1 2
2 1
1 2
1 1
1 1
1 1
2 2
2 1
2 2
2 1
2 2
2 1
1 1
1 1
1 1
2 1
2 1
2 2
2 1
1 2
1 2
2 2
1 2
2 2
1 2
1 1
1 1
1 1
2 2
2 1
2 2
2 2
2 2
1 2
2 2
2 2
1 1
2 2
1 2
1 1
1 2
1 2
2 2
2 1
2 1
1 2
2 1
2 1
1 1
1 2
1 2
2 1
1 1
1 2
2 1
1 1
1 2
1 2
2 2
1 1
1 1
2 1
1 1
2 1
2 1
1 2
1 1
2 2
2 2
2 1
2 2
2 2
1 2
2 2
2 2
1 1
2 1
1 1
2 2
2 2
2 2
1 2
1 2
1 2
1 1
2 1
2 1
1 2
1 1
2 1
1 2
2 2
2 1
1 1
2 2
2 1
2 2
1 2
1 1
1 2
1 1
1 2
1 1
1 2
1 2
1 1
1 1
1 1
2 2
2 1
1 1
2 2
1 2
1 2
2 2
1 2
2 2
2 2
1 1
1 2
2 1
1 1
2 2
1 2
1 1
2 1
2 1
2 2
2 1
2 2
1 1
1 1
2 2
2 2
2 2
1 1
2 1
1 1
1 2
2 1
2 2
2 1
1 1
2 1
2 2
2 1
2 1
1 1
2 2
1 2
1 1
1 2
1 1
2 2
1 2
2 2
2 1
1 2
2 1
2 1
2 2
2 1
2 1
1 2
1 1
1 1
2 1
2 1
1 2
2 1
2 2
1 2
2 2
1 1
1 2
2 2
2 1
1 1
2 1
2 1
2 1
2 1
1 1
2 1
1 1
2 2
2 2
2 2
1 1
1 2
1 2
2 1
2 2
2 2
1 1
1 2
1 2
2 1
2 2
1 1
1 2
2 1
2 2
1 2
2 2
1 1
2 2
2 2
1 1
1 1
1 1
2 2
2 1
1 2
1 2
2 1
2 2
1 2
1 1
1 2
2 1
2 1
1 2
1 2
2 1
2 1
1 1
2 1
2 2
1 1
1 2
1 1
2 1
2 1
2 2
2 2
2 2
1 2
1 1
2 2
2 2
1 1
1 2
2 1
2 2
2 1
1 2
2 1
2 1
2 1
2 2
1 2
1 2
1 2
2 2
1 1
2 1
2 1
1 1
2 2
2 1
2 1
1 2
2 1
2 2
1 1
2 1
2 1
1 1
1 2
2 2
2 2
1 2
1 2
2 1
1 2
1 1
1 1
2 1
1 1
2 2
1 2
2 1
2 2
2 1
2 2
1 2
1 1
1 1
1 2
2 2
2 1
1 1
2 1
2 2
1 2
2 1
1 2
1 1
1 2
2 2
2 2
2 1
2 2
1 1
1 2
2 2
2 2
1 2
1 2
2 1
1 2
1 2
1 2
1 2
2 2
1 2
1 1
1 1
2 2
1 2
2 2
2 1
1 1
2 2
2 2
2 1
2 2
2 2
1 2
1 1
1 2
2 1
2 2
2 1
1 2
1 2
2 2
1 1
1 1
2 1
2 1
1 1
1 1
1 2
2 1
1 1
2 1
1 2
1 2
2 1
2 1
1 1
2 2
2 2
1 2
2 2
2 1
1 2
2 1
1 1
2 2
1 2
2 1
1 1
2 2
1 1
1 1
1 1
1 1
2 2
1 2
2 1
1 2
1 2
2 2
1 2
1 1
1 1
2 2
2 1
1 2
1 1
1 1
1 1
1 2
1 1
1 2
1 1
1 1
2 1
1 2
2 2
2 2
2 1
1 2
1 1
2 1
1 2
2 1
2 1
1 2
2 2
2 1
2 1
2 1
1 2
1 2
2 2
1 2
1 1
1 1
2 1
1 2
1 1
1 1
1 2
1 2
1 1
1 1
1 2
1 2
1 2
1 2
2 1
2 2
2 1
2 1
1 2
2 2
1 1
2 1
2 1
2 1
2 2
1 1
1 1
1 2
1 1
2 1
2 2
2 2
2 1
2 1
2 1
2 1
2 2
2 2
2 2
1 2
1 2
1 2
1 2
1 2
1 1
2 1
2 2
2 1
1 1
2 1
2 2
2 1
2 2
1 2
2 1
1 2
1 1
2 2
1 1
1 1
1 2
2 2
2 1
2 2
1 1
1 1
2 1
1 1
1 1
2 1
1 2
2 1
1 2
2 2
1 2
2 1
1 2
2 2
2 2
2 2
1 1
1 2
1 1
1 1
2 2
1 1
2 2
1 2
2 2
1 1
2 2
1 1
2 2
1 1
2 1
2 2
1 2
1 2
2 1
1 1
1 1
2 1
2 1
2 1
1 2
2 2
1 1
1 1
2 1
2 1
2 2
2 2
1 2
1 1
1 1
1 1
1 2
2 1
1 2
2 1
1 1
1 2
1 2
1 2
2 1
2 2
1 2
2 1
1 2
2 1
1 1
2 1
2 1
1 2
2 2
1 1
2 1
2 1
2 1
2 2
2 1
1 2
1 2
1 1
1 2
1 2
2 1
2 2
1 1
1 2
2 1
2 1
2 2
2 1
1 1
2 1
2 2
1 2
1 2
1 2
2 2
1 1
1 2
2 2
1 2
1 2
2 1
2 1
2 2
1 2
2 2
2 1
2 1
1 2
2 1
2 1
1 2
1 1
2 2
2 1
2 2
1 2
2 1
2 2
1 1
1 1
1 2
2 1
2 2
1 2
2 1
2 2
2 2
1 1
1 2
1 2
2 1
1 1
2 2
2 2
2 2
2 1
1 2
2 1
1 1
2 2
1 2
1 1
2 2
2 1
2 2
1 2
2 1
2 2
2 1
2 1
1 2
2 2
2 1
2 1
2 1
1 1
2 2
1 1
1 2
1 1
2 2
1 2
1 1
1 2
2 2
2 1
2 2
2 2
1 2
2 2
2 2
1 2
2 2
2 1
2 2
2 2
2 2
1 2
1 1
1 1
1 1
1 1
1 2
1 2
2 1
2 1
2 2
2 2
2 1
2 2
1 2
1 1
1 1
1 2
2 2
2 2
2 1
1 2
2 1
1 1
2 2
1 2
1 2
1 1
1 2
1 2
1 1
1 1
1 2
2 1
1 2
2 2
2 1
1 2
2 1
2 1
2 2
1 2
1 2
1 2
1 1
1 1
2 2
1 2
2 1
2 1
2 1
1 2
2 1
2 1
2 1
1 1
2 2
1 1
1 2
1 2
1 1
1 2
1 1
1 1
1 1
1 2
2 2
2 1
2 1
2 1
2 1
1 2
1 2
1 1
2 2
1 2
2 1
2 2
1 2
1 2
1 1
2 1
1 1
2 1
1 2
1 2
2 2
2 1
1 1
1 1
2 2
2 1
1 2
2 2
1 2
1 2
1 2
1 2
1 2
1 2
1 1
1 2
2 1
2 1
2 1
2 1
2 2
2 1
1 1
1 1
2 1
2 2
1 1
2 2
2 1
1 1
2 1
2 1
1 2
1 1
2 2
1 2
1 1
2 2
1 1
1 1
2 2
2 2
1 1
2 2
2 1
2 2
2 2
1 2
1 1
2 2
1 2
2 1
1 1
2 1
2 2
1 2
1 1
2 2
2 2
2 2
2 2
1 2
2 1
1 1
2 2
2 1
1 1
2 1
2 1
1 1
1 2
1 1
1 1
1 2
2 1
2 2
2 1
1 1
2 1
1 2
1 2
2 2
2 1
1 2
1 1
1 1
1 2
2 2
1 2
1 2
2 1
1 1
1 2
1 2
2 2
1 2
2 1
1 1
1 2
1 1
1 1
1 1
1 1
1 2
2 1
2 2
1 1
1 1
1 1
2 2
2 1
2 2
1 1
2 1
1 1
1 2
1 2
1 1
2 2
2 1
1 1
1 1
1 1
1 1
2 2
2 1
2 1
2 2
2 2
1 2
1 1
2 2
2 1
1 2
1 2
2 1
2 2
1 1
1 1
2 1
1 1
2 1
1 1
1 2
2 2
1 1
2 1
2 1
2 2
1 2
2 2
2 1
2 2
2 1
2 1
1 1
2 1
2 1
2 2
2 2
2 1
2 1
2 1
2 1
1 2
2 2
1 2
2 1
2 2
2 2
1 2
2 2
2 1
2 1
2 2
2 1
2 2
2 2
2 2
1 2
1 2
1 2
2 1
1 1
2 1
1 1
1 2
2 2
1 1
1 2
2 1
1 1
1 1
2 2
1 2
1 1
2 2
2 2
1 2
2 2
2 1
2 1
1 2
2 2
1 1
2 2
1 1
1 1
2 1
2 2
1 2
1 2
1 1
2 2
1 2
2 1
2 2
2 1
2 1
1 1
2 1
1 2
2 2
2 1
2 2
1 1
1 1
2 1
2 2
1 1
2 2
2 2
2 2
1 2
2 2
1 1
1 1
1 1
2 2
1 1
2 2
2 2
1 2
2 2
1 2
1 2
2 1
2 1
1 1
2 1
1 2
1 2
1 1
1 1
2 2
1 2
2 2
1 1
2 1
2 2
2 2
2 1
2 2
1 2
1 2
1 1
2 2
2 2
1 2
2 2
2 1
1 1
1 2
2 2
2 1
1 2
1 1
2 2
2 2
1 2
1 2
2 1
1 1
2 2
1 1
1 1
1 2
2 1
1 2
2 1
2 1
1 2
1 1
1 2
1 1
1 2
2 1
1 1
2 2
2 1
2 2
1 1
1 2
1 2
2 1
1 2
1 1
2 1
1 1
2 2
1 2
1 1
1 2
1 1
1 2
1 1
1 1
1 2
2 2
2 1
2 2
2 1
1 1
1 1
1 2
2 1
2 1
2 1
2 2
1 2
1 1
2 1
1 1
1 1
1 2
2 2
1 1
1 2
2 1
2 2
1 1
1 2
1 2
1 2
1 2
2 1
2 1
2 2
2 2
2 2
2 1
1 1
1 2
2 2
2 1
2 1
1 2
2 2
2 1
2 1
2 2
1 1
1 1
1 2
2 1
1 2
1 2
1 2
1 1
1 1
2 2
1 1
2 1
2 1
2 1
2 2
1 2
2 1
2 2
1 1
2 2
2 2
2 2
1 1
2 2
2 1
1 2
1 2
2 2
1 1
1 1
2 2
2 2
1 1
1 1
1 1
2 1
2 2
1 2
2 1
2 1
2 1
2 1
1 1
1 2
1 2
2 1
1 1
2 1
1 1
2 2
1 2
1 2
2 1
1 2
1 2
1 1
1 1
2 2
1 2
1 2
1 1
1 2
1 2
2 1
1 1
2 1
1 2
1 1
1 2
2 2
1 1
2 1
2 2
2 1
1 2
1 2
2 2
2 1
2 1
2 2
2 1
2 1
2 1
1 2
2 1
2 1
1 1
2 2
1 1
1 1
1 1
1 2
1 2
2 1
2 2
1 2
2 1
2 2
2 2
2 1
2 2
1 2
1 2
1 1
2 2
1 2
2 2
2 1
2 2
1 1
2 2
1 1
1 2
2 2
2 1
1 1
2 2
1 2
1 1
1 1
1 2
1 1
1 2
1 1
2 2
1 2
1 1
1 2
1 2
1 2
2 2
1 1
1 1
2 1
1 1
2 1
2 1
1 2
2 1
1 2
1 2
2 1
2 1
1 2
2 2
2 2
1 1
1 1
1 1
2 1
1 2
1 2
1 2
2 1
2 1
2 1
2 1
1 1
2 2
1 1
1 2
2 1
1 2
2 2
1 1
2 1
1 1
2 1
1 2
1 2
2 2
1 1
2 2
1 1
2 2
2 2
2 2
1 1
1 2
1 2
1 1
1 2
1 2
2 2
1 1
2 1
1 1
2 1
1 1
1 2
2 2
2 1
2 1
1 1
2 2
1 2
2 1
1 2
1 2
2 1
2 2
2 2
1 2
1 1
1 1
1 2
2 1
1 1
1 2
2 2
2 1
2 1
2 2
1 1
2 2
2 1
2 1
2 2
1 1
2 1
2 2
2 1
2 1
2 1
1 1
2 2
2 2
1 2
1 2
1 1
2 2
1 2
1 2
2 2
2 2
1 2
2 1
2 1
2 2
2 1
2 1
1 1
1 2
2 2
1 1
2 2
2 1
2 2
2 1
2 1
1 2
2 2
2 1
1 1
1 1
2 2
2 2
1 2
1 2
1 2
2 2
2 1
1 2
1 1
1 1
1 1
1 2
1 2
2 2
2 2
2 1
1 2
1 2
1 2
1 2
1 2
1 1
2 1
2 2
1 1
1 1
1 1
2 1
1 1
2 2
2 1
2 1
2 2
1 2
1 2
2 1
1 1
2 1
1 1
1 2
1 2
2 1
2 2
1 2
2 1
1 2
1 1
2 1
1 1
2 1
1 2
2 1
1 2
2 1
2 1
1 2
2 2
2 1
1 2
1 2
2 2
1 2
1 2
2 1
2 1
2 2
1 1
2 2
1 1
2 1
2 1
2 2
1 2
1 1
2 2
2 1
1 2
1 2
2 1
2 1
1 1
1 1
1 2
1 1
1 2
1 1
1 1
1 1
2 2
2 2
2 1
2 2
1 1
1 1
1 2
2 2
2 2
1 2
2 2
1 1
1 1
1 2
1 1
2 1
1 2
1 1
2 1
2 2
2 2
2 1
1 2
1 1
1 2
2 1
1 2
2 2
2 2
2 2
1 2
1 1
2 1
1 1
1 1
1 2
1 2
1 2
2 1
2 1
1 2
2 2
2 1
1 2
1 2
1 2
2 2
1 2
2 1
1 2
1 1
1 1
1 2
1 1
1 1
1 2
2 2
2 1
1 2
2 2
2 2
2 1
1 1
2 2
1 2
2 1
2 1
2 1
2 1
1 1
1 1
1 1
1 1
2 1
2 1
2 1
2 1
2 1
1 1
2 1
1 2
2 1
1 2
2 2
1 2
1 1
2 1
1 2
2 2
2 2
1 1
1 2
2 1
2 1
1 2
1 2
2 2
2 1
2 1
2 1
2 2
1 1
2 2
1 2
1 1
2 1
2 2
2 2
1 2
1 1
1 1
2 2
1 2
1 2
2 2
2 2
1 2
2 2
2 1
2 1
1 2
1 2
2 1
2 2
1 2
1 2
1 1
1 2
2 2
1 1
1 2
1 2
2 1
2 2
2 1
1 2
2 1
1 2
1 2
1 1
1 2
1 2
1 1
2 1
2 2
1 1
1 1
2 2
2 1
2 1
2 1
2 2
1 1
2 2
1 1
1 1
2 2
2 1
2 1
2 1
1 1
2 2
2 1
2 1
1 2
2 1
1 1
1 1
2 2
1 1
1 1
2 2
1 2
2 2
2 1
2 1
1 2
1 1
1 2
1 1
2 1
2 1
1 1
1 1
2 2
2 1
2 1
2 2
2 2
1 1
1 1
1 1
1 2
1 2
2 1
2 1
2 1
2 1
1 2
1 1
1 1
2 1
2 2
1 1
2 1
1 2
2 2
1 1
1 2
2 2
2 2
1 1
2 1
2 1
1 1
2 1
1 2
2 2
2 2
1 2
1 2
1 2
2 1
2 1
2 2
2 1
1 1
1 1
2 2
2 1
1 1
1 2
1 1
2 1
2 2
1 1
1 2
1 1
2 2
2 2
2 2
2 2
1 2
1 2
1 1
1 2
2 2
1 1
2 2
2 2
2 1
1 2
2 1
2 1
2 2
2 1
1 1
2 2
1 1
2 2
1 2
1 2
1 1
2 1
2 1
2 1
2 1
2 1
1 1
1 1
1 2
1 1
2 2
2 2
2 1
1 1
2 1
1 1
2 2
1 2
1 2
1 1
1 1
2 2
2 2
1 2
1 1
2 2
1 1
2 1
1 1
2 1
1 1
2 1
2 2
1 1
1 1
2 2
1 2
1 1
2 1
1 1
2 1
2 1
1 2
1 2
1 1
1 2
1 1
1 2
1 2
1 2
2 1
2 2
1 2
1 1
1 2
1 1
1 1
2 2
1 2
1 1
2 1
2 2
2 1
2 1
2 2
2 1
2 2
1 1
2 1
1 1
2 2
2 1
2 2
2 1
1 2
1 1
2 2
2 1
1 1
2 2
2 2
2 2
2 1
1 1
2 2
2 1
1 1
1 1
2 2
2 1
2 2
2 2
1 1
2 1
2 2
1 2
2 1
1 1
1 1
1 1
2 2
1 2
2 1
1 1
2 1
2 1
2 1
1 2
2 2
2 2
2 2
1 1
2 2
2 2
2 1
1 2
2 1
2 2
1 2
2 1
2 2
2 1
2 1
2 2
1 1
2 1
2 2
1 2
1 2
2 1
1 1
1 1
2 1
2 2
1 1
2 1
1 1
1 1
1 1
1 2
2 2
1 2
2 2
2 2
2 1
1 1
1 2
2 2
1 1
2 1
1 2
1 2
2 2
2 1
2 2
2 2
1 1
2 2
1 1
1 1
1 1
1 1
1 2
2 1
1 2
1 1
1 2
2 2
1 2
2 1
2 1
2 2
1 1
2 1
1 1
1 1
1 1
1 2
1 2
1 2
2 2
1 2
1 1
1 2
1 1
1 1
1 2
1 2
1 2
2 1
1 1
1 2
2 1
1 1
1 2
2 1
1 1
2 1
1 1
1 1
2 2
1 2
1 1
1 1
1 1
2 2
2 1
1 1
1 1
1 1
1 1
1 2
2 2
2 2
2 2
1 2
2 1
2 2
1 2
1 2
2 1
1 1
1 2
2 1
1 1
1 2
2 2
1 1
2 1
2 1
2 1
2 2
1 1
1 1
2 1
2 1
2 2
2 1
2 1
1 1
2 1
2 1
2 1
2 1
2 2
1 2
1 1
2 2
1 1
2 1
2 2
1 2
2 1
1 1
2 1
2 2
2 1
1 1
1 1
1 2
1 1
2 1
2 1
1 1
1 1
2 1
1 1
2 1
2 1
1 1
1 2
1 1
1 1
1 1
1 2
1 1
1 2
1 2
2 2
2 1
1 2
1 2
2 1
1 1
1 2
1 1
1 2
2 1
2 2
2 1
1 1
2 1
2 2
1 1
2 1
1 1
1 1
1 1
1 1
1 2
1 1
2 1
1 1
1 2
1 1
2 2
1 2
2 2
2 1
2 1
1 2
1 1
2 1
1 2
1 2
1 2
2 1
2 2
1 2
1 2
1 2
1 2
1 1
1 2
2 1
2 2
2 1
2 1
1 2
2 2
1 2
2 1
2 2
1 2
1 2
1 2
2 1
2 1
2 2
2 1
1 2
2 1
2 2
1 2
1 2
2 2
1 1
2 2
1 2
2 2
2 1
2 1
1 1
2 1
2 1
1 2
1 2
2 1
2 1
1 1
1 2
1 2
1 2
2 2
1 1
1 2
2 1
1 2
1 1
2 2
2 2
1 1
2 1
1 1
2 2
2 2
1 2
2 2
1 2
1 2
2 1
2 1
1 2
1 1
1 2
1 1
2 1
2 1
1 1
1 1
2 2
2 2
2 1
1 1
2 2
1 1
1 2
1 1
2 2
2 1
1 1
1 2
1 1
1 2
1 1
1 2
1 1
1 2
1 1
1 2
2 2
2 1
1 1
2 1
1 1
1 2
1 1
1 2
1 1
2 2
1 2
1 2
1 1
2 2
2 1
1 2
1 1
2 1
1 1
2 2
2 2
2 2
1 2
2 2
1 1
1 2
1 2
2 1
1 1
2 1
1 1
2 1
2 2
1 2
2 2
1 1
2 2
1 2
2 2
2 2
1 1
2 1
1 2
2 2
2 2
1 1
1 1
2 2
1 1
1 2
1 1
2 2
1 1
1 1
1 1
1 2
1 1
1 2
2 2
1 1
2 2
2 2
1 1
1 1
2 2
1 1
2 2
2 1
2 1
2 1
1 1
1 1
1 2
2 1
2 2
2 2
1 1
1 1
2 2
1 1
1 1
1 1
2 1
1 2
2 2
1 2
1 2
2 2
1 1
2 2
2 1
2 1
2 1
2 2
1 1
2 1
1 2
1 2
1 2
2 1
2 2
1 2
1 2
2 2
2 2
2 1
1 1
1 2
1 2
2 1
1 2
2 1
2 2
1 1
1 1
2 1
1 2
2 1
1 1
1 1
2 1
1 2
1 2
1 2
1 1
2 2
2 1
1 2
2 1
1 1
1 1
2 1
1 2
2 2
1 1
2 1
1 1
2 1
1 1
2 2
1 2
1 1
1 2
2 2
1 1
1 2
2 1
1 2
1 2
1 1
1 1
2 2
1 1
2 2
2 1
2 1
1 1
2 2
1 2
1 1
2 2
2 2
1 1
2 2
2 1
2 1
1 2
2 2
2 2
2 2
1 1
2 2
1 1
1 2
1 1
1 2
2 1
2 2
2 1
2 2
1 1
2 1
2 2
2 1
2 1
1 2
2 1
1 1
1 1
1 1
1 2
1 2
1 1
2 1
1 2
1 1
1 1
2 2
2 2
1 2
1 1
1 1
1 2
1 2
2 1
1 1
1 2
2 1
1 1
2 1
1 1
1 1
1 2
2 2
1 2
1 1
1 2
1 2
2 1
2 2
1 2
2 2
1 2
1 1
2 1
1 1
1 1
2 1
1 2
2 1
2 1
2 1
2 2
2 2
2 2
1 2
2 1
2 1
2 2
1 2
1 1
2 2
2 2
1 2
2 1
2 1
2 1
2 1
1 2
1 2
2 2
2 1
2 1
2 2
2 2
1 2
1 2
1 1
2 1
2 1
2 1
2 2
2 1
1 2
1 2
2 1
2 2
2 2
2 2
2 2
2 1
2 2
2 1
1 2
1 2
1 2
2 1
2 2
1 1
1 2
1 2
2 1
1 1
2 1
1 2
1 2
2 1
1 1
2 2
2 1
1 1
2 2
1 1
1 2
1 1
2 1
2 1
2 2
2 2
1 1
2 2
1 1
1 2
1 2
1 2
2 1
1 2
2 1
2 2
2 2
1 1
1 2
2 1
1 1
2 1
1 2
1 2
1 1
1 2
2 1
2 2
2 1
2 1
2 2
2 2
2 2
1 1
2 1
2 2
1 1
2 2
1 1
1 2
1 2
1 1
1 1
1 1
1 1
1 1
2 1
2 2
2 1
2 1
1 2
2 2
2 1
1 2
1 2
2 1
1 1
1 2
2 2
1 2
2 1
1 2
2 1
2 1
1 1
2 2
1 2
1 2
1 2
2 2
1 2
2 1
2 2
1 2
2 2
2 2
1 1
1 2
1 1
1 1
2 1
1 1
1 1
2 1
1 2
1 2
1 1
1 1
1 2
2 1
2 2
1 2
2 1
1 2
2 2
2 1
2 1
2 1
2 1
2 2
1 1
1 2
2 1
2 1
1 1
2 1
1 1
2 1
1 1
2 2
2 1
2 1
2 2
2 1
1 1
2 1
2 1
1 2
1 1
2 1
1 2
1 1
2 2
2 1
2 1
2 2
1 2
1 2
1 2
1 2
2 2
2 1
2 1
2 1
2 1
1 1
1 2
1 2
2 1
1 1
1 2
2 2
2 2
1 1
2 2
2 1
2 2
1 1
1 2
1 2
1 1
2 2
2 2
2 1
1 2
2 1
2 2
1 2
1 2
1 2
2 1
2 2
2 2
1 2
1 1
2 1
2 2
2 1
2 2
1 2
1 1
1 2
2 2
2 1
1 1
2 1
1 2
2 2
1 2
1 1
1 2
1 1
1 1
2 1
2 2
2 1
2 1
1 1
2 2
1 2
2 2
1 2
2 1
1 2
2 2
1 2
1 2
1 1
1 2
2 2
1 2
2 2
1 2
2 1
2 2
1 1
1 2
2 2
2 2
1 2
2 2
2 1
1 1
1 1
1 1
1 1
1 1
2 1
1 2
1 2
2 1
2 1
1 1
1 2
2 1
1 2
1 2
1 1
1 2
2 1
2 2
1 1
1 1
2 1
2 1
1 2
1 1
2 1
1 2
1 2
1 1
2 2
1 1
2 1
2 1
1 1
1 1
1 2
2 2
2 1
2 1
2 2
2 2
1 2
2 1
2 2
2 2
1 1
1 2
2 1
2 1
1 2
2 1
1 2
2 1
2 1
1 1
1 2
2 1
2 2
2 2
2 1
2 1
1 2
1 2
1 2
2 2
2 1
1 1
2 2
1 1
2 2
2 2
2 1
2 2
1 1
1 2
1 2
2 1
2 2
1 2
2 1
1 2
1 2
2 2
1 2
2 1
2 1
1 1
2 1
1 2
1 1
2 2
2 1
1 1
1 2
1 1
1 1
1 1
1 2
2 1
2 2
1 2
1 1
1 1
2 1
1 2
1 1
1 2
1 2
2 2
2 2
2 2
2 1
2 1
1 2
1 1
1 1
1 1
1 1
1 2
1 1
2 2
2 2
2 1
2 2
1 2
2 1
1 1
1 2
2 1
1 2
2 1
2 2
2 1
1 1
2 2
1 2
2 1
1 1
1 2
2 2
1 2
1 2
1 1
1 1
1 2
2 1
1 1
2 2
1 2
1 1
2 2
2 1
2 1
1 1
1 2
1 1
2 2
2 2
2 1
1 2
1 1
2 2
1 1
2 1
1 2
2 2
1 2
2 1
1 2
1 2
1 1
1 2
1 2
2 2
1 1
1 1
2 1
2 2
2 1
2 1
2 1
1 2
1 1
1 2
1 2
2 2
1 2
2 1
1 2
2 2
2 2
1 2
2 2
2 2
2 2
1 2
1 2
2 1
1 1
2 1
1 1
2 1
1 2
1 2
1 2
2 1
2 1
1 1
2 1
2 2
1 1
1 1
1 1
2 2
1 1
1 1
2 1
2 1
2 2
1 1
1 1
2 1
1 1
1 1
2 2
2 2
2 1
2 1
2 1
1 1
1 2
1 2
1 2
2 2
2 2
1 1
2 2
2 1
1 2
2 1
2 2
1 2
2 2
1 1
2 1
1 2
2 2
1 1
2 1
2 2
1 2
1 2
1 2
1 1
1 2
1 2
1 1
2 1
2 1
1 2
2 1
1 2
2 2
2 2
2 2
2 1
2 2
2 1
2 1
2 1
1 2
2 1
1 1
1 2
2 2
1 2
1 1
1 2
2 1
2 1
2 1
2 2
1 1
2 1
2 1
1 1
1 2
1 1
1 1
2 2
2 1
1 1
2 2
2 2
2 2
1 1
1 2
1 2
1 1
1 2
2 1
1 1
2 2
2 1
1 2
2 1
2 2
2 2
2 1
1 1
2 1
2 1
2 2
2 1
1 1
2 2
1 2
2 1
1 2
2 2
1 2
2 1
2 2
2 2
1 2
1 2
2 2
2 1
2 1
2 1
1 2
2 2
1 1
1 1
1 2
2 1
2 1
1 1
1 2
1 1
2 1
1 2
2 2
1 2
1 1
1 2
2 2
1 2
1 1
1 2
1 1
2 1
1 2
2 2
1 1
1 1
1 1
2 2
2 1
2 1
1 1
1 2
2 1
2 2
1 1
2 2
2 2
2 1
2 2
2 2
1 2
1 1
2 2
2 1
2 2
2 2
1 2
1 1
1 1
1 1
1 1
1 1
1 2
2 2
2 1
1 2
1 1
1 1
1 2
2 1
1 2
1 2
1 1
1 1
1 2
1 1
2 2
2 2
2 2
1 1
2 1
2 1
1 2
1 1
1 1
2 1
1 1
2 2
2 1
1 1
2 2
1 2
2 2
1 2
1 1
1 2
1 2
1 1
2 1
2 1
1 2
2 1
1 2
2 2
2 2
1 1
1 1
1 2
1 1
1 1
2 2
2 2
2 1
2 1
1 2
2 2
1 2
1 2
2 1
1 1
1 1
2 1
1 2
1 1
2 1
2 2
1 2
1 2
2 1
2 1
1 2
1 1
1 2
2 2
2 2
2 2
2 2
1 2
2 1
2 1
2 2
1 1
1 2
1 2
2 2
2 2
1 1
2 2
1 1
2 2
1 1
1 1
1 1
2 2
2 2
1 2
2 2
1 2
1 2
2 1
2 2
1 1
2 1
2 1
2 1
1 2
2 2
1 1
1 2
1 1
2 2
1 2
1 2
2 2
2 2
2 1
1 2
2 1
1 1
2 1
2 2
1 2
2 2
2 2
1 1
2 2
2 1
2 2
1 1
2 1
1 1
2 2
2 2
2 2
1 2
1 2
2 1
1 1
1 2
1 2
2 2
2 2
2 1
1 1
2 2
1 1
2 2
1 1
1 2
2 1
1 1
2 1
2 1
2 2
2 2
2 1
2 2
2 1
2 1
2 2
2 1
1 2
1 1
2 2
1 2
2 1
2 2
2 1
2 2
2 2
2 1
1 1
1 2
2 2
2 1
2 2
2 1
2 2
1 2
2 2
1 2
1 2
2 1
1 2
2 2
1 1
2 1
2 1
1 1
1 2
2 2
2 2
2 2
1 1
1 1
2 2
2 1
1 1
2 1
1 2
1 1
2 1
2 1
1 1
1 2
1 2
1 2
2 1
2 2
2 2
2 2
1 2
1 1
2 2
2 1
1 2
2 1
1 2
2 1
2 2
2 2
2 1
2 2
2 1
1 2
1 2
1 1
2 1
2 1
1 1
2 1
2 1
2 2
1 1
1 1
1 1
1 2
1 2
1 1
1 2
1 1
2 1
1 2
1 2
2 2
1 1
2 2
2 1
1 1
1 2
2 1
2 1
2 1
1 1
1 1
2 1
2 1
2 2
1 1
1 1
2 2
1 1
2 2
1 1
1 2
1 1
1 1
2 2
2 1
2 2
2 2
2 1
1 1
1 1
1 1
1 1
2 2
2 1
2 1
1 1
2 1
1 2
1 1
2 2
2 2
1 2
1 1
1 1
1 2
1 2
1 2
1 1
1 2
1 2
1 1
1 2
2 1
2 1
2 1
2 1
2 1
2 1
2 2
2 2
2 2
2 1
1 2
2 1
1 2
1 2
2 1
1 2
2 1
1 1
2 2
1 1
2 1
1 2
2 1
1 1
2 2
1 1
1 1
2 1
1 2
2 1
1 1
2 1
2 1
2 1
2 1
2 1
2 1
1 2
1 2
1 2
2 1
1 2
1 1
1 1
1 2
1 1
1 1
1 2
1 2
2 1
2 2
1 2
2 2
1 2
2 1
2 2
2 2
1 2
2 1
1 1
2 2
2 1
2 1
1 1
1 2
2 2
2 2
2 1
2 1
1 2
1 1
2 2
2 2
2 2
1 2
1 1
2 1
2 2
1 1
1 2
2 2
1 1
2 1
1 1
1 1
2 1
1 1
2 1
2 2
1 1
2 2
1 2
2 1
2 2
2 2
1 2
2 2
2 2
1 1
1 1
2 1
1 2
2 2
2 1
1 1
2 2
2 2
2 1
2 1
1 1
1 1
1 1
2 2
2 1
1 2
1 1
1 1
2 1
1 2
2 2
2 2
1 2
2 1
2 2
1 2
2 1
2 2
2 2
1 1
1 2
2 1
2 1
1 2
1 2
1 2
1 2
1 2
2 1
2 1
2 2
1 2
1 2
1 2
2 1
2 2
1 2
2 1
1 2
2 1
1 1
2 2
1 2
2 1
1 2
2 2
2 2
2 2
1 1
1 2
1 1
2 2
2 2
1 1
1 1
2 2
1 1
1 1
2 1
1 1
2 2
1 1
2 2
1 2
1 1
1 1
2 1
2 2
2 1
2 2
2 1
1 2
2 2
1 2
1 2
2 2
2 2
1 2
1 2
2 2
2 2
1 1
1 2
2 2
2 2
2 1
2 2
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 2
1 2
2 1
2 2
2 2
1 2
1 2
1 2
1 1
2 1
1 1
2 2
2 1
2 2
2 2
2 1
2 2
1 1
2 2
1 2
1 2
2 1
2 2
2 2
2 2
2 2
1 1
1 2
1 1
2 2
1 1
2 1
2 2
1 1
2 2
1 2
2 2
1 1
2 1
2 2
2 1
2 2
2 2
2 1
2 1
2 2
2 2
1 1
1 2
2 2
1 1
2 2
1 2
1 1
2 1
1 2
1 1
2 2
2 2
2 2
2 2
1 1
2 1
2 2
1 2
1 2
2 1
1 1
2 2
2 2
2 1
2 1
2 1
2 1
2 1
2 1
2 2
2 1
1 1
1 2
1 2
1 1
1 1
1 2
2 1
2 2
2 2
2 2
2 2
1 1
1 2
2 2
2 2
2 2
1 2
2 1
1 2
1 1
1 2
1 2
2 1
2 2
1 2
2 1
1 2
2 1
2 2
1 2
2 1
2 2
1 2
2 1
2 1
1 1
2 2
1 2
2 2
1 1
2 2
1 2
2 1
2 2
1 1
1 2
2 1
2 1
2 1
1 2
2 1
2 1
1 1
2 1
1 2
2 1
1 2
2 1
1 1
2 1
1 2
1 2
2 2
1 1
1 2
1 2
2 2
2 1
1 1
1 2
2 2
2 1
2 1
2 1
2 1
1 1
2 2
1 1
1 2
1 2
1 1
2 2
1 2
1 1
1 2
2 1
2 1
1 1
2 2
1 1
1 2
2 1
1 1
1 1
1 2
1 1
2 1
1 1
2 2
1 1
2 2
2 1
1 2
2 1
2 1
2 2
2 1
2 1
1 2
1 2
1 2
2 1
1 1
2 2
1 1
1 2
2 1
2 2
1 2
2 2
2 2
1 1
2 1
2 1
2 2
1 1
2 2
1 2
1 2
2 1
1 1
1 1
2 2
1 1
2 1
1 2
1 2
2 2
1 2
1 1
1 2
1 1
1 2
2 1
1 1
1 2
2 2
1 2
1 1
2 2
1 2
2 2
1 2
2 2
2 1
1 1
1 2
2 2
1 1
2 1
2 1
1 1
1 1
2 1
1 2
1 1
1 1
1 1
2 2
2 1
2 1
1 1
1 1
1 2
2 1
2 1
1 1
2 1
1 1
1 1
2 1
1 2
2 2
2 1
2 2
1 1
2 1
1 2
2 1
1 2
1 1
2 1
2 2
2 2
1 1
2 1
1 2
1 1
1 2
1 1
2 1
1 2
2 1
1 1
1 2
2 2
1 2
2 1
1 1
1 1
2 1
2 1
1 1
2 1
1 1
1 2
1 1
1 2
1 2
2 1
2 2
1 2
2 1
2 1
1 1
2 2
1 1
1 1
1 1
2 2
2 1
2 2
1 2
2 1
1 2
1 2
1 2
1 1
2 2
1 1
1 1
2 1
1 2
1 1
2 1
2 2
2 1
2 1
2 2
1 1
1 1
2 2
2 1
2 1
2 2
2 2
2 1
2 1
2 1
2 1
2 2
2 1
1 2
2 2
1 1
2 2
2 2
2 2
2 1
1 2
2 1
1 2
1 1
1 2
2 1
2 2
2 1
1 1
2 1
1 1
1 1
1 1
2 1
1 1
1 2
1 1
2 1
2 2
2 2
2 1
1 2
2 2
1 1
2 1
1 2
2 2
2 2
2 1
2 1
1 2
1 1
1 2
1 1
1 2
2 1
1 2
1 2
2 1
2 1
1 2
2 1
2 2
1 1
2 1
1 1
2 1
2 1
2 2
2 1
2 2
2 1
2 2
1 2
2 2
2 1
2 1
2 1
2 2
2 2
2 1
1 2
1 2
2 1
2 1
1 1
2 1
2 1
1 1
1 1
2 1
1 2
2 2
2 2
2 2
2 1
2 2
1 2
2 2
1 2
1 2
2 2
2 2
2 2
1 1
1 1
1 2
2 1
1 1
2 1
2 2
2 1
1 1
1 1
2 1
1 1
1 2
1 2
1 1
2 2
1 2
2 1
2 2
2 1
1 2
1 1
2 1
1 1
2 1
1 2
2 1
1 2
2 1
1 1
2 2
2 1
1 2
1 2
1 1
1 2
2 1
1 1
2 2
2 1
1 1
2 1
2 2
1 1
1 1
1 2
1 1
2 1
1 2
2 2
1 2
1 1
1 1
1 1
2 1
2 2
2 1
2 1
1 2
2 2
2 2
1 1
2 1
1 2
2 2
1 2
1 2
1 1
1 2
2 1
2 1
2 2
1 2
2 2
2 2
2 2
2 2
1 2
1 1
1 1
1 1
1 2
1 1
2 1
2 2
2 1
1 1
1 2
2 1
1 1
1 1
1 1
1 2
2 1
2 2
2 2
2 2
2 2
1 2
1 2
1 1
2 2
2 2
1 2
1 2
2 2
1 1
1 1
2 1
2 1
1 2
1 1
1 1
2 1
1 2
2 2
2 2
1 1
1 1
2 1
1 2
2 2
1 2
1 1
2 2
2 1
2 2
2 1
2 1
1 1
1 2
2 2
2 1
2 1
1 1
2 2
2 2
2 2
2 1
1 1
1 1
1 1
2 1
2 2
1 1
1 1
1 1
1 1
2 1
2 1
1 2
1 1
1 2
1 1
2 2
2 1
2 2
2 2
2 1
1 2
2 2
2 1
1 2
2 2
2 2
2 2
2 1
2 1
2 2
1 1
2 2
1 1
1 2
2 2
2 2
1 2
2 1
2 1
2 1
2 1
1 2
2 1
1 1
1 2
1 1
1 2
2 2
2 2
1 1
2 2
1 2
1 2
2 1
1 1
1 1
2 2
2 2
1 1
2 2
2 1
2 1
2 1
1 1
2 2
2 2
1 1
2 1
2 1
1 2
1 1
2 1
1 1
1 1
2 1
1 1
2 1
1 2
2 1
2 2
2 2
2 2
1 1
2 1
2 1
1 1
2 1
2 1
1 2
1 2
1 1
2 1
1 2
2 2
2 1
1 2
2 2
1 1
2 1
1 2
1 2
2 1
1 1
2 2
2 1
1 1
2 2
1 2
1 2
1 1
2 1
1 2
2 2
2 1
2 2
1 2
1 2
2 1
1 1
1 2
1 2
2 2
1 2
1 2
2 2
1 2
2 1
2 2
1 1
1 2
1 2
2 1
1 1
1 2
2 2
1 1
2 2
2 2
2 1
2 1
2 2
1 2
2 2
1 2
1 2
1 1
2 1
2 2
1 1
1 1
1 1
1 1
1 1
2 2
2 1
1 1
2 1
1 2
1 1
2 2
1 1
1 2
2 1
1 1
2 1
2 1
1 2
1 1
1 2
2 2
2 2
2 1
2 1
2 1
1 1
2 2
2 1
2 2
2 1
1 2
2 2
2 1
1 1
1 1
2 2
2 1
2 1
2 1
1 1
2 1
2 1
1 2
2 1
2 2
2 2
2 2
2 2
2 2
1 1
2 1
2 2
2 1
2 2
1 1
2 1
1 2
2 1
1 1
2 2
1 2
1 2
2 1
1 2
1 2
1 1
2 2
1 2
2 1
1 2
1 2
1 1
1 2
1 1
2 1
2 2
1 1
1 1
1 1
2 1
1 2
1 2
1 1
2 2
2 2
2 1
1 1
2 1
1 1
1 2
1 1
2 1
1 2
2 2
1 2
1 1
1 1
2 2
1 1
1 1
1 1
2 2
2 2
1 2
1 1
1 2
2 2
1 1
2 1
1 1
1 2
2 1
1 1
2 2
1 1
2 2
2 1
2 2
1 1
1 1
1 1
1 2
2 1
1 1
1 1
1 2
2 2
2 2
2 1
1 2
1 1
1 1
2 2
2 1
2 1
2 2
2 1
2 2
2 1
1 2
1 1
2 1
2 2
2 1
2 1
1 2
1 2
2 1
1 1
2 2
1 1
2 2
2 2
2 1
1 1
1 2
2 1
1 2
2 2
1 1
1 1
1 1
2 1
1 2
2 1
1 1
1 2
2 1
2 2
2 2
1 1
1 1
2 1
2 1
2 1
1 1
2 2
2 1
1 1
2 2
2 1
1 2
2 1
2 2
2 1
1 2
1 2
1 2
1 1
1 2
1 1
1 2
2 1
1 1
2 1
1 2
1 2
2 1
1 2
1 2
1 1
2 1
1 1
1 2
2 2
2 2
1 1
2 2
1 2
1 1
2 2
2 2
1 2
1 1
1 1
2 2
1 1
1 1
2 1
2 1
1 1
2 1
1 2
1 2
2 1
1 2
2 1
2 1
2 2
2 2
2 1
1 2
2 1
1 2
1 2
1 2
2 2
2 1
1 1
2 2
1 1
1 1
1 1
2 1
1 1
1 2
2 2
1 2
1 1
2 1
1 2
1 2
2 1
2 2
2 2
2 1
2 2
2 2
2 1
1 1
2 1
1 2
1 1
1 2
2 2
2 2
1 2
1 2
1 2
1 1
2 1
1 2
2 1
2 1
2 1
2 1
2 2
2 2
1 2
1 1
1 1
2 2
1 2
2 1
2 1
1 2
2 1
1 1
1 2
2 2
1 1
1 2
1 2
1 2
1 2
1 1
2 2
2 1
1 1
2 1
2 1
2 2
1 2
2 2
1 2
2 2
1 1
2 2
2 2
2 2
2 1
1 2
1 1
2 1
2 1
1 1
2 1
1 1
1 2
1 2
1 2
1 2
1 1
2 2
2 1
2 2
2 2
2 1
2 2
1 2
1 1
1 1
2 2
1 2
1 2
2 2
2 1
2 1
1 2
1 2
1 2
1 1
1 2
2 1
1 1
2 1
1 2
2 2
1 1
1 1
2 2
2 2
2 2
1 1
2 1
2 1
1 1
1 1
1 2
1 2
2 2
2 1
2 1
2 2
1 2
2 1
2 2
1 2
2 2
2 1
2 1
1 2
2 2
2 2
2 1
2 2
1 1
2 2
2 2
2 2
2 2
2 2
2 1
2 1
2 2
1 1
1 1
2 2
2 1
2 2
1 1
1 1
2 2
1 1
1 2
1 1
2 1
1 1
2 1
2 1
1 2
1 1
1 2
1 2
2 1
1 2
2 2
1 2
2 2
1 2
2 1
1 1
1 2
1 1
2 2
2 1
2 1
1 1
2 1
1 2
2 1
2 2
2 1
1 2
1 1
2 2
2 1
2 1
1 1
2 2
1 1
1 2
1 2
1 2
2 2
2 2
2 2
1 1
2 1
2 2
1 1
1 1
2 2
2 2
2 2
2 2
1 1
2 1
1 2
1 1
1 1
2 2
2 2
2 2
1 2
2 2
1 1
1 1
1 2
1 2
1 1
1 2
2 2
2 2
2 2
1 2
1 2
2 1
2 1
2 2
2 2
2 1
1 2
1 1
2 1
1 1
1 2
1 1
1 1
1 2
1 2
1 2
1 1
1 2
1 1
1 2
2 2
1 1
2 2
2 2
2 1
1 2
1 2
1 1
1 1
2 1
2 1
2 1
1 1
2 1
2 1
2 2
2 2
2 1
1 1
1 1
1 1
1 2
2 2
1 1
2 2
1 2
1 2
2 2
2 1
1 1
2 1
1 1
2 2
1 1
2 2
1 1
1 2
2 2
1 1
2 1
1 1
1 2
1 1
2 2
2 1
1 2
1 2
2 2
1 2
2 1
1 1
1 2
2 1
2 1
2 2
1 2
2 1
1 2
1 1
1 1
1 1
1 2
1 1
1 2
2 1
2 2
1 2
2 2
1 1
1 1
1 1
1 1
2 1
1 2
2 2
1 1
2 2
1 2
2 1
1 1
1 2
2 1
2 2
1 1
1 2
1 2
2 1
1 2
2 1
2 1
1 2
1 1
1 2
2 1
2 2
1 2
1 1
2 2
1 2
2 1
2 1
2 1
1 2
2 2
2 2
1 1
2 2
2 2
1 1
1 2
2 2
2 1
1 2
2 2
1 1
1 1
2 2
2 2
1 1
1 1
2 1
2 2
1 2
1 1
1 1
2 1
2 2
1 1
2 1
2 1
2 2
1 1
2 1
2 1
1 1
1 2
1 1
1 2
1 2
1 2
2 1
1 2
2 2
2 1
2 2
2 2
1 1
1 2
1 1
1 1
1 1
2 2
1 2
1 2
2 2
1 1
2 2
1 1
2 1
1 2
2 2
1 1
2 2
2 1
2 2
1 2
1 1
2 1
1 2
2 1
2 1
1 2
1 1
2 1
2 2
2 1
2 1
2 2
1 1
2 1
2 1
1 1
1 2
1 1
1 2
1 2
1 2
2 1
1 2
2 1
2 2
1 1
1 1
1 1
1 1
1 2
2 1
1 2
1 2
2 1
1 1
2 1
1 2
1 2
1 1
1 2
1 1
1 2
1 1
2 1
1 1
2 1
2 1
1 1
2 1
1 2
2 2
2 1
2 2
2 1
1 2
1 2
1 2
1 1
1 2
2 2
1 1
2 1
1 2
1 1
2 2
2 1
1 1
2 2
2 2
2 2
2 1
2 1
2 2
2 1
2 1
1 2
1 1
1 2
2 2
1 1
2 1
2 1
2 1
2 2
1 2
2 1
2 2
1 2
1 1
1 2
2 2
1 1
1 2
1 1
2 1
2 2
1 2
2 2
2 2
2 1
2 2