0
1
mirror of https://git.sb/baoshuo/OI-codes.git synced 2024-12-18 07:52:00 +00:00
OI-codes/AtCoder/ABC258/C/data/test_05.out

100617 lines
196 KiB (Stored with Git LFS)
Plaintext

k
u
u
u
u
k
u
k
k
k
k
u
u
k
u
u
k
k
k
k
u
k
k
u
u
k
k
k
u
k
u
k
k
u
u
k
u
k
u
u
k
k
u
k
u
k
k
k
k
k
u
k
k
k
u
k
u
u
k
k
k
k
u
u
u
u
k
u
u
k
k
u
k
k
u
k
u
k
u
u
k
u
k
u
k
k
k
k
u
k
k
k
u
k
k
k
u
k
k
k
k
u
k
k
u
u
k
k
k
u
k
k
u
u
u
k
u
k
k
k
u
u
u
u
k
k
u
k
u
u
u
u
k
u
u
k
u
u
u
u
k
u
u
u
k
k
u
u
u
k
k
k
k
u
k
k
u
k
k
u
u
k
k
u
u
k
u
k
u
k
u
k
u
u
k
u
k
u
k
u
k
u
u
k
k
k
k
k
u
u
k
k
u
u
u
k
k
u
u
u
k
u
u
k
k
k
u
k
u
u
k
u
k
u
u
k
u
k
u
k
u
k
u
k
u
k
k
k
k
u
u
k
u
u
u
k
k
k
k
k
k
u
k
k
k
k
k
k
k
k
k
u
k
k
k
u
k
u
u
u
u
k
k
u
k
u
k
u
u
k
k
k
k
k
u
k
k
k
u
u
k
k
u
u
k
k
u
k
u
k
u
u
k
k
u
k
u
k
u
u
u
u
u
u
u
u
u
u
k
k
u
k
k
u
k
k
k
k
u
k
u
k
k
u
k
k
u
k
u
u
u
k
u
k
u
k
u
k
u
u
k
k
k
u
u
k
k
k
u
k
k
k
k
k
k
u
u
u
k
k
k
u
u
k
k
k
k
u
k
k
u
k
u
u
u
k
k
u
k
u
k
k
k
k
k
k
u
u
k
k
k
k
k
u
k
u
k
u
k
u
k
k
k
k
k
u
k
u
u
k
k
k
k
k
u
k
k
k
k
u
k
u
k
k
u
u
u
k
u
k
u
k
k
u
k
u
u
u
k
k
u
k
k
k
u
k
u
k
u
u
u
k
u
u
u
u
k
u
k
u
k
k
k
u
k
u
k
k
u
u
k
k
u
u
u
u
u
k
k
k
u
u
k
u
u
u
k
k
u
u
u
u
u
k
k
k
k
k
u
u
u
k
u
k
k
k
u
k
u
k
k
k
u
k
k
k
u
k
u
u
k
u
u
u
u
k
k
u
k
u
k
k
u
u
u
k
u
u
k
u
k
k
k
k
k
k
u
k
u
k
k
k
u
u
k
k
u
k
k
u
k
k
k
u
u
u
k
k
k
k
k
u
u
k
k
u
u
k
u
u
u
k
k
u
k
k
u
u
k
u
u
u
k
u
k
k
u
u
k
k
u
u
k
k
u
k
u
k
u
u
k
u
k
k
u
k
u
u
u
k
k
u
k
k
k
u
u
u
k
u
u
u
u
u
k
u
k
u
k
k
u
u
k
u
u
k
u
u
k
k
k
k
u
u
u
u
k
u
k
k
u
u
k
k
u
u
u
u
k
u
k
u
u
u
k
k
k
k
u
u
u
u
k
k
k
u
k
u
u
u
u
k
k
k
u
k
k
k
u
k
u
u
u
k
k
u
k
u
k
u
k
k
k
k
u
k
k
k
u
k
k
k
k
k
u
k
u
k
k
k
k
u
k
u
u
k
u
u
u
u
k
u
k
u
u
k
k
u
k
k
k
k
k
k
k
k
u
k
k
u
u
u
k
k
u
u
k
k
k
k
u
k
u
k
k
u
u
u
u
u
k
u
k
k
u
u
u
u
k
u
k
k
u
k
k
k
u
k
u
u
u
k
k
u
u
k
k
k
u
u
k
k
u
k
k
k
u
k
k
u
u
k
u
u
u
k
u
u
u
k
u
u
k
u
k
k
u
k
k
k
u
u
k
u
k
k
u
k
u
k
u
k
k
u
k
k
k
k
k
u
u
k
u
u
u
k
k
u
k
k
u
k
u
k
k
u
u
u
k
u
k
k
u
k
u
k
u
k
k
u
k
k
k
u
u
k
k
u
k
k
k
u
k
u
k
k
u
u
u
u
u
u
u
u
k
u
k
k
u
u
k
u
u
u
u
u
k
u
k
u
k
u
u
u
k
k
u
u
k
k
u
u
u
k
k
k
u
u
k
k
k
u
u
k
u
k
k
u
k
k
u
u
u
u
k
u
u
k
u
u
k
u
u
u
k
k
u
k
u
u
u
k
k
k
u
k
k
k
k
k
k
u
k
u
u
k
u
k
k
k
u
k
u
u
k
k
u
k
u
u
k
k
u
k
k
u
u
u
u
u
k
k
u
u
k
u
u
u
k
k
u
k
u
u
k
k
k
k
k
u
u
k
k
k
k
u
k
k
k
k
u
k
u
k
k
u
u
u
u
u
k
u
u
u
u
k
k
k
u
k
k
k
k
k
u
u
k
k
u
u
u
k
k
u
u
k
k
k
k
u
k
k
u
k
u
k
k
u
u
u
u
u
k
k
k
u
u
u
u
k
u
u
k
u
u
u
u
u
k
k
k
k
u
k
u
k
k
u
k
k
k
k
k
k
k
u
u
k
k
k
k
u
k
u
k
k
k
k
k
u
k
k
u
k
k
u
u
u
u
u
u
k
u
u
u
k
u
k
u
u
k
u
k
u
k
k
k
k
k
u
u
k
u
u
u
k
u
u
u
u
u
k
u
k
u
u
k
u
u
k
k
k
u
k
u
k
k
u
k
u
u
u
k
k
u
u
u
u
k
u
u
k
u
u
k
u
u
k
u
k
u
u
u
k
k
k
u
k
u
k
k
k
k
u
k
u
k
u
u
k
k
k
k
u
k
k
u
u
u
u
k
u
k
u
u
k
u
u
u
k
k
k
k
u
k
u
u
k
u
k
k
k
k
k
u
k
u
u
k
k
u
u
k
k
k
u
k
k
k
k
u
u
k
k
u
u
k
u
u
k
u
u
k
u
k
k
u
k
k
k
k
u
k
u
k
u
u
k
u
u
k
u
k
k
k
u
u
k
u
u
u
k
u
k
k
u
k
k
u
u
k
u
k
k
k
u
k
u
k
k
u
u
u
u
k
k
u
k
u
k
k
u
u
k
u
u
u
k
u
u
k
k
k
k
u
k
k
k
u
u
k
u
k
k
u
u
k
k
u
k
k
u
u
k
k
k
k
k
u
u
k
u
k
k
u
k
k
k
k
k
k
u
u
k
u
k
u
k
u
u
k
k
k
k
k
u
k
k
u
u
k
k
k
u
k
k
u
k
k
u
k
k
k
u
k
k
k
k
u
u
k
k
k
k
k
k
k
k
k
u
k
u
u
u
k
u
k
u
k
u
u
u
k
u
u
u
u
k
k
k
k
u
k
k
u
k
u
u
u
u
u
u
k
k
k
u
u
u
u
u
u
u
u
k
u
k
k
k
u
u
k
k
u
k
k
k
k
u
k
u
u
u
k
u
k
k
k
u
k
u
u
u
u
k
k
k
u
k
u
u
u
u
u
u
u
k
u
u
u
k
u
u
k
k
u
k
u
k
k
u
u
k
k
k
k
k
k
u
k
k
k
u
k
u
u
k
u
k
u
k
u
k
k
k
u
k
k
u
k
k
u
u
u
u
u
u
u
k
k
k
u
k
k
k
u
u
k
u
k
u
u
k
k
u
u
u
k
k
u
k
u
k
u
k
u
k
k
k
u
u
u
u
k
k
u
k
u
u
k
u
k
k
k
u
u
u
u
k
u
k
k
u
u
u
u
u
k
u
u
k
k
u
u
k
u
u
k
u
u
k
k
k
u
u
u
u
k
k
k
k
k
k
u
u
u
u
k
u
k
k
u
u
u
u
k
k
k
u
u
k
u
u
u
k
u
u
u
k
k
k
k
k
k
u
k
k
u
u
u
u
k
k
k
u
u
k
k
u
k
u
u
u
u
k
k
u
k
k
k
k
k
k
k
u
k
u
k
u
u
k
u
u
u
k
u
u
k
u
u
k
u
u
u
u
k
k
k
u
k
u
k
u
k
u
u
u
k
u
u
u
k
k
k
k
k
k
k
k
k
k
k
u
k
k
u
k
u
k
k
k
u
k
k
u
u
k
u
k
k
u
u
k
u
u
k
u
u
u
k
u
u
k
k
u
k
u
u
u
k
u
k
u
k
k
k
u
k
u
k
k
k
k
u
u
u
k
k
k
u
u
k
u
u
u
k
k
u
k
k
k
u
k
u
k
k
u
u
u
k
u
k
k
k
u
u
k
k
k
k
k
u
k
u
u
k
k
u
k
u
k
k
u
k
u
u
k
u
k
u
k
u
k
k
u
u
k
u
u
u
u
k
u
k
u
u
k
u
u
k
k
u
u
k
k
u
u
k
u
k
k
u
u
k
k
k
k
k
k
k
k
k
u
u
k
u
k
k
u
u
k
k
u
u
u
u
u
u
u
u
k
k
k
u
u
u
u
k
k
u
k
u
u
k
u
k
u
k
k
u
k
u
u
k
u
u
u
u
u
u
u
u
u
k
u
u
u
k
u
u
u
k
k
k
u
k
k
u
k
u
u
u
k
u
k
k
u
u
u
u
k
k
k
u
k
u
u
k
k
u
k
k
k
u
u
u
u
k
u
u
u
k
u
k
k
u
u
k
k
k
u
u
k
u
k
k
k
k
k
u
k
k
k
k
k
k
k
k
u
u
k
k
u
k
u
k
u
k
u
k
u
u
k
k
u
u
k
u
k
u
u
k
u
k
k
k
u
k
k
k
u
u
k
u
u
u
k
k
u
k
k
k
k
u
k
u
k
k
k
k
k
k
u
k
k
u
k
u
u
k
u
k
k
u
k
u
k
u
u
k
u
u
u
k
k
u
u
u
k
u
k
k
u
k
u
k
u
u
k
u
k
u
k
k
u
u
u
u
u
u
u
u
u
u
k
u
k
k
u
u
k
u
k
k
u
k
k
u
k
u
u
k
k
u
u
u
k
u
u
u
k
u
k
k
u
k
k
u
u
u
k
k
u
u
u
k
u
k
u
k
k
u
u
u
k
u
u
k
k
u
u
k
k
u
u
u
k
k
u
u
u
u
u
u
u
u
k
k
k
k
k
k
u
u
u
u
u
u
k
k
u
u
k
k
k
k
u
k
k
k
u
k
k
k
u
k
u
u
k
k
k
k
k
u
k
u
k
k
u
u
k
u
k
u
k
k
u
k
k
u
u
k
u
k
u
k
u
u
u
k
k
k
k
k
k
k
k
k
k
k
k
u
k
k
k
u
k
k
u
k
k
u
u
u
k
u
u
k
k
u
k
u
k
u
u
u
u
k
k
k
k
k
k
u
k
k
k
u
u
u
u
k
k
k
u
k
k
u
u
u
k
k
u
k
u
u
k
u
u
k
u
u
u
u
k
k
u
k
k
k
u
k
u
k
k
k
k
k
k
k
k
u
k
u
u
u
k
u
k
k
u
k
u
u
k
k
k
k
u
k
k
u
k
k
k
k
k
u
k
k
k
u
k
u
k
k
u
u
u
k
k
k
u
u
u
u
u
u
u
u
k
u
u
k
k
u
k
u
u
u
u
u
k
u
u
u
u
k
u
u
k
u
u
k
k
u
k
k
k
u
u
u
u
k
k
u
k
k
u
u
u
u
u
k
k
k
u
k
u
u
u
u
u
k
k
k
k
k
u
k
u
u
u
u
k
u
k
u
k
u
k
k
u
u
u
k
k
k
u
k
k
u
k
u
u
u
u
u
u
k
u
k
k
u
u
k
k
k
k
k
k
k
k
u
u
u
u
u
k
u
k
u
u
u
k
k
k
k
k
u
k
k
u
u
k
k
u
u
k
k
k
k
u
k
u
k
k
k
k
k
k
u
k
u
k
u
u
k
k
u
u
k
u
k
u
k
k
u
k
k
k
u
u
u
k
k
k
u
u
k
k
u
u
k
k
k
u
k
k
k
u
k
k
k
u
u
k
u
k
u
k
k
u
k
u
k
u
k
k
u
u
k
u
u
k
u
u
k
u
u
u
u
k
k
k
k
k
u
k
u
k
k
k
k
u
u
k
k
k
k
k
k
u
k
u
u
u
k
u
k
k
k
u
u
k
k
k
k
u
k
k
k
u
u
u
k
u
u
k
k
u
k
u
k
u
u
k
u
u
u
u
k
k
u
k
k
u
u
k
u
k
k
k
u
k
u
k
u
u
k
k
k
u
k
k
u
u
k
u
k
k
u
u
k
k
k
k
u
u
k
k
u
k
k
k
k
u
k
k
u
u
k
k
u
u
k
k
k
k
k
k
u
k
k
k
k
u
k
k
u
k
u
k
k
u
u
k
k
k
u
u
u
k
u
u
u
u
u
u
k
u
u
k
k
k
k
k
k
u
u
u
u
u
k
k
k
u
k
k
k
u
k
k
k
u
k
u
u
u
k
u
k
u
k
k
k
k
u
u
u
u
k
k
k
k
u
u
k
k
u
u
k
u
u
k
u
k
u
k
k
u
k
k
k
k
k
k
u
k
k
k
u
k
u
u
k
u
u
u
u
k
k
u
u
k
u
k
k
u
u
k
u
k
u
u
u
u
u
k
k
u
u
k
k
u
u
k
u
k
u
k
k
k
u
u
k
u
u
u
u
u
k
u
k
k
u
k
u
k
k
k
k
u
k
u
k
k
k
k
k
k
u
u
u
u
k
u
u
u
k
k
k
k
k
u
k
u
k
k
u
k
k
u
u
k
k
u
k
k
k
k
k
k
k
u
u
k
u
k
u
u
k
u
k
u
u
u
k
k
k
u
k
k
u
u
u
k
k
u
k
k
k
u
k
k
k
k
k
u
u
k
k
k
u
u
u
u
u
u
u
k
u
k
k
u
u
u
u
u
k
u
u
u
k
u
u
u
k
k
k
k
k
k
k
u
u
u
k
k
k
u
k
u
u
k
k
u
k
k
k
k
k
k
u
u
u
u
k
k
k
u
u
k
k
k
k
k
u
k
k
k
k
u
u
u
u
k
k
u
u
u
u
u
k
u
u
u
k
k
k
k
u
u
k
u
k
u
k
k
u
k
u
k
u
u
k
u
k
u
k
k
k
u
u
k
u
u
k
k
k
u
u
k
u
k
u
u
u
k
u
u
k
k
u
u
k
u
u
k
k
k
u
k
u
u
u
u
u
u
k
u
u
k
k
k
k
u
k
k
k
k
u
u
u
k
u
u
k
u
k
k
u
u
k
k
k
u
u
k
u
u
k
k
k
u
u
u
u
u
k
k
k
u
u
u
u
k
k
u
k
k
u
u
u
k
u
u
u
u
k
k
u
u
u
k
k
k
k
u
k
k
u
k
u
u
k
k
u
u
k
u
k
u
u
u
k
u
k
u
u
k
u
u
u
u
u
u
k
u
u
u
u
u
k
k
u
k
k
k
k
k
u
k
k
u
u
k
k
k
u
u
u
u
u
u
k
u
u
u
u
u
u
u
k
k
u
k
k
k
k
k
k
k
u
u
u
k
k
u
k
u
k
u
k
u
k
k
u
k
k
u
u
k
k
k
k
k
u
u
u
u
k
u
k
k
u
k
u
u
u
u
u
k
u
u
k
u
u
u
u
u
k
u
k
k
k
u
u
u
u
u
k
k
u
k
k
k
k
u
k
k
u
k
k
u
u
k
u
u
k
k
u
u
u
k
k
k
k
k
u
u
k
u
u
u
u
k
k
k
u
k
u
u
u
k
k
u
k
u
u
k
u
u
k
u
u
k
u
u
u
k
k
k
k
u
k
k
k
u
k
u
u
k
k
k
k
k
u
u
u
u
u
u
k
u
k
u
u
u
u
u
k
k
k
k
u
u
k
k
u
k
k
k
k
u
u
u
u
k
u
k
k
u
u
u
u
u
u
k
k
u
u
u
k
k
k
k
u
k
k
u
k
u
k
u
k
u
k
u
k
k
k
u
u
k
k
k
u
u
u
u
k
k
k
u
k
u
k
u
u
u
k
k
k
u
k
u
k
k
k
u
u
u
u
k
u
k
u
u
k
u
k
u
u
u
k
k
k
u
u
k
u
u
k
k
u
k
k
k
k
u
u
k
u
u
u
u
k
u
k
k
k
k
k
k
k
k
u
k
k
k
u
u
k
k
u
k
u
u
u
u
k
u
k
k
u
k
u
u
k
k
u
k
u
k
k
k
u
u
k
k
k
u
k
u
k
k
u
u
k
u
k
u
u
k
k
u
u
u
u
u
k
u
u
k
u
u
k
k
k
k
u
u
k
u
k
u
k
k
k
u
k
k
k
u
u
k
k
u
u
k
u
k
k
u
u
u
k
k
k
u
u
k
u
u
u
k
u
u
u
k
u
k
u
u
u
k
k
k
k
k
u
k
k
u
k
k
u
k
k
k
u
k
u
u
u
u
k
u
u
u
k
u
k
k
k
u
u
k
u
k
k
k
u
u
u
u
u
k
u
u
k
u
k
u
u
k
k
u
k
k
u
k
k
u
u
k
k
u
k
u
k
u
k
u
k
u
k
k
u
k
k
u
k
u
u
u
k
u
u
k
u
k
u
u
u
u
k
u
k
k
u
k
u
k
k
k
k
k
k
u
u
k
u
u
u
u
k
k
k
u
u
k
k
u
k
u
u
k
u
u
k
k
k
k
u
k
k
u
k
u
u
k
u
k
u
u
k
u
u
u
k
k
k
u
k
u
k
k
u
u
k
k
u
u
k
u
k
u
u
u
k
u
k
u
u
k
u
k
k
k
k
u
k
k
k
k
k
k
k
k
u
k
k
u
u
k
u
u
k
k
k
k
u
u
u
u
u
u
k
k
k
u
u
u
k
u
k
u
u
k
u
u
u
u
k
k
u
k
k
u
k
k
k
u
k
u
k
u
k
k
k
u
k
u
k
k
u
k
u
k
u
k
k
k
u
k
k
u
k
k
k
k
k
u
k
u
k
u
k
k
u
k
u
k
k
u
k
k
u
k
u
k
u
u
u
k
k
u
u
k
u
k
u
u
u
k
k
k
k
u
u
u
k
k
k
u
k
k
u
k
k
u
k
u
u
k
k
u
u
k
k
u
k
u
u
k
u
u
u
k
k
u
k
u
u
u
k
u
k
k
u
u
u
u
u
k
k
k
k
k
u
u
k
k
k
k
k
u
u
k
k
u
k
k
u
u
u
k
u
k
k
u
u
u
k
u
k
u
u
u
u
k
k
u
u
k
k
k
u
k
k
u
k
u
u
k
u
u
u
k
k
k
k
u
k
k
k
u
k
k
u
u
k
k
k
k
u
u
u
u
k
k
k
u
u
k
u
u
k
k
u
u
u
k
k
u
k
u
u
u
k
k
u
u
u
k
k
u
k
u
k
k
u
k
u
u
u
k
k
u
u
u
k
k
k
k
u
u
u
u
k
u
u
u
k
k
u
u
k
k
k
u
u
k
u
k
u
u
k
k
u
u
u
u
u
k
k
k
k
u
u
u
k
u
k
u
k
u
u
u
k
k
u
u
k
u
k
u
k
k
u
u
k
k
k
u
u
k
u
k
k
k
u
k
k
k
u
k
k
u
u
k
k
k
u
u
k
k
k
u
k
u
u
u
k
k
k
u
k
k
u
k
u
u
k
u
k
u
u
k
u
u
k
u
k
u
u
u
k
u
k
k
k
u
k
k
u
k
u
u
k
u
k
u
k
k
u
u
u
u
u
k
u
u
u
u
u
u
k
k
u
k
u
k
u
k
u
u
k
k
u
k
u
u
u
u
k
k
k
k
k
k
k
u
u
k
k
u
u
u
u
k
k
k
u
u
k
u
u
k
u
u
k
k
u
u
u
u
u
u
k
u
k
k
k
u
k
k
u
u
k
k
k
k
u
k
k
u
k
u
k
u
u
k
k
u
k
k
u
u
k
u
k
u
u
k
u
u
u
k
k
k
u
k
k
u
u
k
u
u
k
u
u
k
u
k
k
k
u
k
u
u
k
u
u
u
k
k
u
k
k
u
u
k
u
u
k
u
u
k
k
u
u
k
k
k
u
u
u
k
u
k
k
k
k
k
k
u
u
u
u
u
k
u
k
k
k
u
u
k
k
k
k
k
k
u
u
k
u
k
u
u
u
k
k
u
u
k
k
u
k
k
k
k
k
u
k
u
k
k
u
k
k
k
u
u
k
u
k
k
k
u
k
k
k
k
k
k
u
u
u
k
u
k
u
u
u
u
k
u
k
k
k
u
k
k
u
u
u
k
u
k
k
u
k
u
k
u
k
k
u
u
u
k
u
u
k
k
u
k
k
u
k
u
u
k
u
k
k
k
k
u
u
k
u
k
k
k
u
u
k
u
u
k
k
u
k
k
u
u
u
u
k
u
k
k
u
u
u
u
u
u
u
u
k
u
k
u
u
k
k
k
u
u
u
u
u
k
k
u
k
k
k
k
u
u
u
k
u
u
k
u
u
k
u
k
k
u
k
k
u
u
u
k
u
u
k
u
u
k
u
u
u
u
u
k
u
k
u
u
k
k
u
u
u
k
k
u
u
u
k
u
u
k
k
u
u
u
u
k
k
u
u
u
u
k
k
u
u
u
u
k
u
u
u
u
u
u
u
k
k
u
k
k
u
u
k
k
k
u
u
u
u
k
k
u
u
u
u
k
u
u
k
u
k
u
k
k
k
u
k
k
u
u
u
k
k
u
u
k
k
u
k
u
u
k
k
u
k
u
k
k
k
k
u
u
u
u
k
u
k
k
k
u
u
u
k
k
k
k
k
u
u
k
u
k
u
u
k
k
k
u
k
u
k
u
u
k
u
k
k
u
k
u
u
k
k
u
u
u
k
u
k
k
k
u
k
u
u
u
u
k
u
k
k
k
u
u
u
u
u
u
u
k
u
u
k
k
u
u
u
k
k
k
u
u
u
u
k
k
k
u
k
k
u
u
u
u
u
u
k
k
k
k
u
k
u
u
k
u
u
u
k
u
k
u
u
k
k
u
u
k
u
k
k
u
k
k
u
u
u
u
u
u
k
u
k
k
k
k
u
k
k
k
u
u
k
k
k
u
u
u
u
u
u
u
k
k
u
u
u
u
k
k
u
k
u
k
u
u
u
k
k
u
u
k
u
k
k
u
k
k
k
u
k
k
k
u
k
u
u
k
u
k
k
u
k
u
k
u
u
k
u
k
k
u
u
u
u
k
k
k
u
k
k
u
u
k
k
u
u
k
k
k
k
k
u
k
u
k
k
u
u
u
u
u
u
k
k
k
u
u
u
k
u
u
k
u
k
u
k
k
k
u
k
k
u
u
u
k
u
u
u
u
u
k
u
k
k
k
u
u
u
k
k
k
k
u
k
k
k
u
u
u
k
u
u
k
k
u
u
k
k
k
u
k
k
u
k
u
k
k
k
u
u
k
u
k
u
u
u
k
k
u
k
k
k
u
u
k
k
u
u
u
u
u
u
k
u
k
k
k
u
u
k
k
k
u
u
k
u
k
u
u
u
u
k
k
u
k
k
k
k
u
u
k
u
k
k
k
u
k
k
k
k
k
u
k
k
k
u
u
k
u
u
u
u
k
k
u
u
u
u
u
u
k
u
k
u
u
u
u
k
u
u
u
k
k
u
u
u
k
u
k
k
k
k
k
k
u
u
u
u
u
k
k
k
k
u
u
k
u
u
u
k
k
u
k
u
k
u
u
u
k
u
u
u
u
u
k
k
u
k
u
k
k
k
k
u
u
u
u
u
k
k
u
k
u
u
k
u
u
k
u
u
k
u
u
k
u
k
u
u
k
k
u
k
u
u
u
k
u
u
k
k
k
u
u
k
k
k
u
k
u
u
u
u
k
k
u
u
u
k
k
k
k
u
u
k
k
u
u
k
u
k
k
u
k
u
k
u
k
k
u
u
k
u
k
u
k
u
k
k
k
k
k
u
u
u
k
k
k
k
k
u
k
u
k
u
k
k
k
k
u
k
k
u
k
k
u
u
k
k
u
k
k
k
k
u
u
u
k
k
u
k
k
u
u
k
k
k
u
u
u
u
k
u
u
u
u
k
k
u
u
u
u
k
k
u
u
k
u
u
k
u
u
u
u
u
u
u
k
k
k
k
u
u
u
k
k
k
u
k
u
k
k
u
k
k
k
u
k
u
u
k
k
u
u
k
k
k
u
k
k
u
u
k
k
k
k
k
k
k
k
u
k
k
k
u
k
k
u
k
k
k
u
u
k
k
k
k
k
u
u
u
k
u
k
k
k
u
u
k
k
k
u
u
u
k
k
u
u
k
u
u
u
u
u
k
u
k
u
u
k
k
k
k
k
k
u
k
u
u
u
k
k
k
u
k
u
u
u
k
u
k
k
k
u
u
u
k
k
k
u
u
k
k
k
u
u
u
k
u
u
u
u
k
k
k
k
u
u
k
u
u
u
u
k
u
u
u
u
k
u
k
k
k
k
u
k
k
k
u
u
u
u
k
k
k
u
u
k
k
k
u
k
k
k
u
u
k
k
u
k
k
k
u
u
k
u
u
k
u
u
u
k
k
k
u
k
k
k
k
k
u
k
k
u
k
u
k
u
k
u
u
k
k
u
k
k
k
u
k
k
k
u
k
u
k
u
u
u
u
k
u
u
k
u
k
u
k
u
k
u
u
k
u
k
u
k
k
k
k
k
u
k
k
k
k
u
k
k
k
k
k
k
u
u
u
u
u
u
u
u
k
k
u
k
u
u
k
k
u
k
k
k
k
k
u
u
k
k
u
u
u
k
k
u
u
u
u
u
k
k
u
k
u
u
k
k
k
k
k
u
u
u
u
k
u
k
u
k
u
u
u
u
k
u
k
k
u
k
k
k
u
k
u
k
k
k
k
k
u
k
u
k
k
u
k
u
k
k
u
k
k
u
u
k
k
u
u
u
u
u
u
u
k
u
k
k
u
k
k
u
u
u
u
k
u
k
k
u
u
u
u
u
u
k
u
u
u
u
u
k
k
k
u
u
u
k
u
u
u
u
u
k
u
k
k
u
u
k
u
k
u
k
k
u
k
k
u
k
u
u
u
k
k
u
k
k
k
u
k
u
k
k
k
k
k
u
u
u
u
k
k
u
k
k
k
u
u
k
k
u
u
u
u
u
u
u
k
u
k
k
u
k
u
u
u
u
u
u
u
k
u
u
k
k
u
u
k
u
u
u
k
u
k
k
k
u
k
k
u
k
u
u
u
u
k
k
u
k
k
u
k
k
u
k
u
k
u
u
u
u
k
u
k
u
k
k
u
k
u
u
k
u
u
k
k
u
u
u
u
k
k
u
k
k
u
k
u
k
u
k
u
k
u
k
k
k
k
u
u
u
k
k
u
k
u
k
u
u
u
k
u
k
u
k
u
u
u
u
u
k
u
k
k
u
u
u
k
u
u
k
k
u
u
k
k
k
u
k
u
k
u
u
u
k
k
k
u
k
u
k
k
k
u
u
k
u
k
u
k
k
k
k
k
u
u
u
k
u
u
u
k
u
k
k
u
k
u
u
u
k
u
u
k
u
u
k
u
u
u
k
u
u
k
k
u
k
u
k
u
k
u
u
k
u
k
k
u
k
u
u
u
k
u
u
k
u
k
k
k
u
k
k
u
k
u
k
u
k
k
k
u
u
u
u
u
k
k
u
k
u
k
u
k
u
k
k
k
u
u
k
u
u
u
k
k
k
k
u
k
u
u
u
k
u
u
k
k
k
u
k
k
k
k
k
k
u
u
k
k
u
k
k
u
u
u
k
k
u
u
u
u
k
u
k
k
k
k
u
u
u
u
u
k
u
u
u
u
u
u
u
u
k
k
u
u
u
u
u
u
u
k
k
u
u
u
u
u
u
u
u
k
u
u
k
k
k
u
u
u
u
k
k
k
u
u
k
u
u
k
u
u
u
k
u
k
k
k
k
k
k
u
k
u
k
k
k
u
k
u
u
k
u
u
u
k
u
u
k
u
k
u
k
u
k
u
u
u
k
k
u
k
u
k
u
u
u
k
u
k
u
k
u
k
k
u
u
k
k
u
u
u
k
k
k
k
k
k
k
k
u
k
k
k
k
u
k
k
k
k
k
k
k
k
u
k
u
u
k
k
u
k
k
u
k
u
u
u
k
k
k
k
k
k
u
u
k
k
k
u
k
u
k
k
u
k
u
u
k
u
u
k
k
u
k
u
k
k
u
k
k
u
u
k
u
u
k
k
k
u
k
k
u
k
k
u
u
u
u
k
u
u
u
u
u
k
k
k
k
u
k
u
u
k
u
u
k
k
k
k
k
u
u
k
k
u
k
u
k
u
k
u
u
k
u
u
u
k
k
k
k
k
u
k
u
k
k
k
k
k
u
u
u
u
k
k
k
u
u
u
k
u
u
k
k
k
k
k
k
k
k
k
k
k
k
k
u
k
u
u
u
k
k
u
u
u
u
k
u
u
u
u
u
k
k
k
u
k
k
u
u
u
u
k
u
u
u
u
u
k
k
k
k
k
u
u
u
k
k
k
k
k
u
k
k
u
k
k
k
u
k
k
u
k
k
u
k
k
k
k
k
u
k
k
u
u
k
k
k
u
k
u
k
u
u
u
u
u
k
k
u
u
k
k
u
u
u
k
u
u
k
u
k
k
u
u
u
u
k
u
u
u
k
k
u
u
k
u
k
u
k
k
k
u
k
k
u
u
k
k
u
k
u
u
u
k
k
u
k
u
u
k
k
k
k
u
k
k
k
k
k
k
u
k
u
k
k
k
k
k
u
k
k
u
k
k
u
u
k
k
k
u
k
u
u
u
k
k
u
u
k
k
k
k
u
k
k
k
u
u
u
u
u
u
k
k
k
u
k
k
k
k
u
k
k
u
u
u
u
u
k
u
k
k
u
k
u
k
k
k
k
u
u
u
u
u
u
k
u
u
k
k
u
u
u
k
u
k
u
k
k
u
k
k
k
k
u
u
u
u
u
k
k
u
k
u
u
k
k
u
k
k
k
k
u
u
u
k
u
k
u
u
u
u
k
k
u
k
k
u
u
u
k
u
u
k
u
k
k
u
k
k
u
u
u
u
u
k
u
u
k
k
u
k
u
u
u
k
k
u
u
u
k
k
u
k
k
u
u
u
u
k
k
k
u
k
k
k
k
k
u
u
u
k
k
u
u
u
k
k
u
u
u
u
k
k
k
u
u
u
k
k
u
u
k
k
u
u
u
u
u
u
k
u
k
u
k
u
k
u
k
k
k
u
k
k
k
k
u
k
k
u
k
k
k
u
k
u
k
k
u
k
k
k
k
k
k
k
k
k
k
u
k
u
k
k
k
k
u
u
u
k
u
u
k
k
k
u
k
k
u
k
k
k
u
k
u
k
k
k
u
k
k
u
u
k
k
u
k
k
u
u
u
k
k
k
k
u
k
u
u
u
u
k
u
u
u
k
u
u
k
u
u
u
k
u
u
k
u
k
k
k
u
u
k
k
u
u
u
k
k
k
u
u
k
k
u
u
k
u
u
k
u
k
k
u
u
k
k
k
u
u
u
k
u
k
k
k
k
u
k
k
u
k
k
u
u
u
k
u
u
u
k
u
u
k
u
u
k
u
k
k
k
k
u
k
u
u
u
k
k
k
u
k
k
k
k
u
k
u
u
u
k
k
k
k
k
k
u
k
u
u
u
u
k
k
u
k
u
u
u
u
k
u
u
k
u
k
k
u
u
u
u
k
u
k
u
k
k
k
u
k
u
k
k
k
u
u
u
k
k
u
k
k
k
k
k
k
u
k
u
k
u
u
k
k
u
u
k
u
u
k
k
k
u
k
u
k
k
k
u
u
k
u
k
u
k
k
k
u
k
k
k
u
k
k
k
u
u
k
k
u
k
u
k
u
k
u
u
u
u
u
u
u
u
k
k
k
u
k
u
u
k
u
k
u
k
k
k
k
u
k
u
u
k
k
u
k
k
u
k
k
u
k
u
u
u
u
u
k
u
u
k
u
u
k
k
u
u
u
u
u
u
u
u
u
u
k
u
u
k
k
k
u
u
k
k
k
k
u
u
u
u
k
u
u
u
u
k
u
k
u
u
u
k
k
u
u
k
u
u
k
u
u
k
u
k
k
k
u
k
k
u
u
k
k
u
k
u
k
u
u
k
k
k
k
k
k
k
k
u
u
u
k
u
u
k
k
k
u
k
u
u
u
u
k
k
k
u
k
k
k
u
u
k
k
u
u
k
k
k
u
k
k
u
u
k
k
u
u
u
u
u
u
u
k
k
u
u
k
k
u
k
k
u
u
k
u
u
k
u
u
k
u
k
u
u
u
k
k
u
u
k
k
k
u
k
k
u
u
u
k
u
u
u
u
u
u
u
u
k
u
u
k
k
u
u
u
u
k
k
k
u
k
k
k
u
u
k
k
u
k
k
u
u
u
k
u
u
k
u
k
u
k
k
u
u
u
k
u
k
u
u
u
k
u
k
k
k
k
u
k
k
u
u
k
k
k
k
k
u
u
k
u
k
u
u
k
k
k
k
u
k
u
u
k
k
u
k
u
k
k
k
u
u
u
u
k
k
k
k
k
k
u
k
k
u
u
u
k
k
k
u
k
k
u
u
u
k
k
k
u
k
u
k
u
k
k
u
u
k
k
u
u
u
k
k
k
u
u
u
u
u
u
k
k
u
u
u
u
u
u
k
k
u
u
k
u
u
k
k
k
k
k
k
k
u
k
u
k
k
k
k
k
k
k
k
k
k
k
k
u
k
k
u
u
k
k
u
k
k
k
u
k
u
u
k
u
k
k
u
u
u
k
k
k
k
u
u
k
k
k
u
u
u
u
u
u
k
u
k
u
u
k
u
u
k
u
u
u
u
k
k
u
u
u
u
u
u
u
k
u
u
u
k
u
k
u
k
k
k
u
u
k
u
k
u
u
k
k
k
u
u
k
u
u
k
k
u
k
u
k
u
u
k
k
k
u
k
u
k
k
k
k
k
u
k
k
u
u
u
u
k
u
u
k
u
k
k
u
u
k
u
u
u
k
k
u
u
k
u
k
k
k
u
k
u
u
k
k
k
k
u
k
k
u
k
k
k
k
k
u
k
u
k
u
u
u
k
u
k
u
k
u
u
k
k
k
k
u
u
k
k
k
u
k
k
k
k
u
u
u
k
k
k
k
u
k
u
u
k
k
u
u
k
u
k
u
u
u
u
k
u
k
u
k
k
k
k
u
k
u
k
k
u
k
k
k
k
k
k
k
k
u
u
u
k
u
k
k
k
k
k
k
u
k
k
u
k
k
k
k
k
k
k
u
u
k
u
k
u
k
u
u
k
u
k
u
u
u
k
u
u
k
k
k
k
k
u
k
u
u
u
k
k
u
k
u
u
u
u
k
k
u
k
k
k
k
u
k
u
k
k
u
u
u
u
u
k
u
k
k
u
k
k
k
u
u
k
u
k
k
k
k
u
u
k
u
u
k
k
u
u
u
k
k
k
k
u
k
u
k
u
k
u
k
u
u
k
u
k
u
k
k
k
k
k
u
k
u
u
u
k
k
k
k
u
u
u
u
u
k
k
u
k
k
u
k
u
k
u
k
u
u
u
u
u
k
u
u
u
u
k
u
u
u
k
k
k
u
k
u
k
k
u
u
u
k
u
u
k
k
k
k
k
k
u
k
k
u
u
u
u
k
u
u
u
k
k
k
k
k
k
u
u
u
k
u
u
u
u
u
u
k
u
k
k
u
k
k
u
k
k
k
k
u
u
u
k
k
k
k
k
u
u
u
k
u
u
u
k
k
u
u
u
k
u
k
u
u
u
k
u
k
u
u
u
k
u
u
u
u
u
u
u
k
k
k
u
k
k
u
k
u
k
u
k
k
u
k
u
u
u
u
k
k
k
u
u
u
u
u
k
u
k
u
u
k
u
k
k
k
u
k
u
k
u
u
u
k
k
u
u
u
k
u
k
u
u
k
k
k
k
k
u
u
u
u
u
k
u
u
u
k
k
k
k
u
u
u
k
k
k
k
k
u
u
u
u
u
k
u
u
k
u
k
u
u
u
k
u
k
u
k
k
k
k
u
u
k
k
u
k
u
u
u
k
k
k
k
k
k
u
k
k
u
k
k
k
k
k
u
k
k
u
u
u
u
u
u
u
u
u
u
u
k
u
u
k
u
k
k
k
k
u
k
u
k
k
u
k
k
k
k
u
u
u
k
k
u
k
k
k
k
u
u
u
k
k
u
k
u
k
u
u
k
u
k
k
k
u
k
u
k
k
u
u
u
u
k
u
k
u
k
k
k
k
u
u
u
u
k
k
u
u
u
u
u
u
u
k
k
k
u
u
u
u
k
k
u
k
k
u
u
k
u
k
u
k
u
k
u
u
u
u
u
k
k
k
k
k
k
u
k
k
k
u
k
u
k
k
u
u
k
u
u
u
u
k
k
u
u
u
k
k
k
u
u
u
u
k
u
u
k
u
k
k
u
u
u
k
k
u
k
u
u
u
u
k
u
k
k
k
u
u
u
k
u
k
u
u
k
u
k
u
k
u
k
k
k
k
u
u
k
u
u
u
u
u
k
k
k
u
u
k
k
k
k
u
u
u
u
u
u
k
u
u
u
u
k
k
u
u
u
u
k
u
k
u
k
u
k
u
u
u
k
k
k
u
k
u
u
k
u
k
k
u
k
u
u
u
k
k
k
u
k
u
u
k
u
k
u
u
u
u
k
k
u
u
u
u
u
k
u
k
u
u
k
u
k
u
k
k
k
u
k
k
k
u
k
k
k
u
u
k
k
u
u
u
u
k
u
k
u
u
u
k
u
k
u
k
u
k
u
k
u
k
k
u
u
k
k
k
k
u
u
k
k
u
k
u
k
k
u
k
k
u
k
k
k
u
u
u
k
k
k
k
u
u
u
u
k
k
k
k
k
k
u
u
u
k
u
u
k
k
u
u
k
u
u
u
u
u
u
u
k
k
k
k
k
k
k
u
u
k
k
u
u
u
u
u
k
k
u
k
u
u
u
k
u
u
u
k
k
k
u
u
u
k
u
u
k
u
k
u
k
u
u
k
k
u
k
k
k
k
u
k
k
u
u
k
k
u
u
k
k
u
u
u
u
u
u
u
k
u
k
k
u
k
k
k
k
k
u
k
k
u
u
u
u
k
k
u
u
u
k
k
u
u
k
u
u
k
u
k
k
u
u
u
u
k
k
u
k
k
k
k
u
u
u
k
k
k
k
u
u
k
u
k
k
u
u
k
k
k
u
k
u
k
k
u
k
u
k
k
u
u
u
u
k
u
u
k
k
u
u
u
k
u
k
k
u
u
u
u
u
k
u
u
k
u
k
u
k
u
u
k
k
k
u
k
u
k
u
u
u
u
k
u
u
k
u
u
k
u
k
u
u
k
k
k
k
u
u
u
k
u
u
u
u
k
u
k
u
k
k
u
k
k
u
k
k
k
k
u
u
u
k
k
u
u
u
u
k
u
u
u
u
k
u
u
u
u
k
k
k
u
k
k
u
u
k
u
k
u
k
k
k
k
u
u
u
k
k
u
u
k
u
u
u
u
u
u
u
k
k
u
k
k
k
u
k
k
u
k
k
k
u
k
u
u
u
k
u
u
u
k
k
k
k
k
u
k
u
k
u
u
k
u
k
u
u
k
u
k
k
k
k
k
k
u
k
k
u
k
u
u
u
k
k
k
k
k
k
k
u
k
k
k
k
k
u
u
k
k
k
u
k
k
k
k
u
k
u
u
u
k
k
u
k
u
u
k
u
k
k
u
u
u
u
u
u
k
k
u
u
u
u
u
k
k
u
u
u
k
u
k
k
u
k
k
u
k
k
u
u
k
u
k
k
u
k
k
u
u
u
k
u
k
k
u
u
u
k
k
u
u
u
u
u
k
k
k
k
u
k
u
u
k
k
k
k
k
u
u
u
k
k
u
k
u
u
u
u
u
k
u
k
k
k
u
k
k
k
k
u
u
u
k
u
u
k
u
k
k
k
k
k
u
u
u
k
u
u
u
k
u
u
k
u
k
u
k
u
k
u
k
k
k
u
k
u
k
k
k
u
u
u
k
u
k
u
k
k
u
u
k
k
u
k
u
k
k
u
k
k
k
k
u
u
k
k
k
u
k
k
k
k
k
k
k
k
u
u
k
k
u
u
k
k
k
u
k
u
k
u
u
k
k
u
u
u
k
u
u
k
u
u
u
k
u
k
u
u
k
k
u
k
u
k
u
k
u
k
k
u
u
u
k
u
u
k
u
k
u
k
k
k
u
k
k
k
u
u
k
u
k
k
u
k
k
u
k
u
u
k
k
u
u
u
k
k
k
k
k
u
k
k
k
u
u
u
u
u
k
u
k
k
k
u
k
u
u
u
u
u
k
k
k
u
u
k
u
k
k
k
u
u
u
u
k
k
u
u
u
k
k
u
u
k
u
u
u
u
u
u
k
u
u
k
u
k
u
u
k
k
k
u
k
u
k
u
u
u
u
k
k
k
k
u
k
k
k
k
u
k
u
k
u
k
k
u
u
u
u
u
k
u
k
k
u
u
u
k
k
u
k
u
k
u
k
u
u
u
k
u
u
u
k
u
k
u
k
k
k
u
u
u
u
k
k
u
k
u
k
u
u
u
u
u
u
u
k
k
k
u
k
k
u
u
k
k
u
u
k
k
u
k
k
k
u
u
u
k
k
u
u
u
k
k
u
u
u
k
u
u
k
u
k
u
k
k
k
u
u
k
k
k
u
u
u
u
u
u
k
k
u
k
k
u
k
k
u
u
k
k
k
u
u
u
k
k
k
k
k
u
k
k
u
u
u
k
k
u
k
u
u
u
k
k
k
k
u
k
u
k
k
k
k
k
k
u
u
k
k
k
k
k
u
u
u
k
u
u
k
k
k
k
k
k
k
u
u
k
u
k
k
k
u
k
k
u
k
k
u
u
u
u
k
k
u
u
u
k
u
k
k
k
k
u
u
k
u
u
u
k
u
u
u
k
u
u
k
u
u
u
u
u
k
u
k
k
u
u
u
k
k
u
u
k
u
k
k
k
k
k
k
u
k
u
k
k
k
u
k
u
u
u
k
k
k
u
u
k
u
k
u
u
u
u
k
k
u
u
u
k
u
u
k
k
k
k
u
k
u
k
u
u
u
u
k
u
k
u
u
u
k
k
u
k
k
u
k
k
k
u
u
k
k
k
k
k
k
u
k
u
u
k
k
k
u
k
k
k
u
k
k
u
u
k
k
u
k
u
u
k
k
k
u
u
u
u
k
k
k
k
u
u
k
u
k
k
u
k
k
u
k
k
u
u
k
k
u
u
u
k
k
u
k
k
k
k
u
u
k
u
u
k
u
u
k
u
u
u
u
u
u
k
u
u
u
u
u
k
k
u
u
u
k
k
k
u
u
k
u
u
k
k
k
k
k
k
k
k
u
k
u
u
k
u
k
u
u
u
u
u
k
u
u
u
u
k
k
k
k
u
u
k
k
k
k
k
u
k
u
k
u
u
u
u
k
u
k
u
u
k
u
k
k
k
k
k
u
k
u
k
k
k
k
u
u
u
k
k
u
u
k
u
k
k
k
k
u
u
k
u
u
k
k
k
k
k
k
u
k
u
k
u
k
k
k
k
u
k
u
u
u
k
u
k
k
k
u
k
u
u
k
u
k
u
k
k
u
u
u
u
k
u
k
u
u
u
k
k
k
u
u
k
k
k
k
k
k
u
u
k
u
k
u
u
k
u
k
u
k
k
k
u
u
u
u
k
u
u
u
u
k
u
k
k
k
u
k
k
k
k
k
k
u
u
u
u
u
u
u
k
k
u
k
u
u
u
u
k
u
k
u
u
u
k
u
u
k
u
k
k
u
u
u
k
u
u
k
k
u
k
u
k
k
k
u
k
k
k
u
k
k
k
u
k
u
u
u
k
k
u
u
k
k
k
u
u
u
u
k
k
u
k
k
k
u
u
u
k
u
k
u
u
k
u
u
u
k
k
u
u
u
u
u
k
u
k
u
k
u
u
k
u
k
k
k
k
k
u
k
k
k
k
k
k
k
k
u
k
u
k
k
u
u
k
u
k
k
k
k
k
k
k
u
k
k
k
u
u
u
u
k
u
u
k
u
u
u
u
k
k
k
k
k
k
k
u
k
u
u
u
u
k
k
u
k
u
k
u
k
k
k
u
u
u
u
k
u
k
k
u
k
k
k
k
k
k
u
u
k
k
k
k
k
u
u
u
u
k
u
k
u
k
k
k
k
u
k
u
k
k
k
u
u
k
k
k
k
u
k
k
u
k
u
k
u
k
k
u
k
u
k
u
k
k
u
u
k
u
u
k
k
u
u
k
k
k
u
k
k
k
u
k
u
u
k
u
u
k
k
u
k
k
k
k
k
k
k
k
u
u
k
u
k
k
u
k
u
k
u
k
k
u
u
k
u
u
u
k
u
u
u
u
k
u
u
k
k
u
k
k
u
u
u
k
k
k
k
u
k
u
k
u
k
k
u
u
u
k
u
u
k
k
k
u
u
u
k
k
u
k
u
u
u
k
k
k
k
k
k
k
u
k
u
k
u
k
k
u
k
u
u
k
u
u
k
u
u
u
u
k
u
u
u
k
u
k
u
u
u
k
u
u
k
k
u
u
k
u
u
k
k
k
u
u
u
k
k
k
k
k
u
k
k
u
u
k
k
k
k
u
u
u
k
u
k
k
k
k
k
u
k
u
k
u
u
k
u
u
k
k
u
u
u
k
k
k
u
k
u
u
k
k
u
u
u
k
u
u
k
k
k
k
k
k
k
u
k
u
k
u
k
k
k
u
k
k
u
u
k
k
u
u
k
k
k
u
k
u
k
k
k
u
k
k
k
u
k
k
k
u
k
k
k
u
k
u
u
k
u
k
k
u
u
u
u
u
u
u
k
u
u
u
k
u
u
k
u
u
u
k
u
u
u
u
k
u
u
u
u
k
k
u
k
k
k
k
u
u
k
k
u
u
k
k
u
u
u
k
k
u
k
u
k
u
k
u
k
u
u
u
k
k
k
u
k
k
u
k
u
k
k
k
k
u
u
u
k
u
u
u
k
k
k
u
k
u
u
k
k
k
u
k
u
k
u
u
k
u
k
k
k
u
u
u
u
u
u
k
k
u
u
k
k
u
k
u
k
u
k
u
u
u
u
k
k
u
k
k
u
u
k
k
k
k
u
u
u
u
u
u
k
u
k
u
k
u
k
k
u
k
k
u
u
k
k
k
k
k
u
k
k
k
k
k
u
k
u
u
u
u
u
u
u
u
k
u
u
k
u
u
u
u
u
u
u
u
k
k
u
u
u
k
u
k
k
k
u
u
k
k
k
k
u
k
k
k
u
k
k
u
k
u
u
k
k
k
k
u
k
k
k
k
k
k
k
u
u
u
k
k
k
k
u
k
u
k
u
u
u
k
k
k
u
u
u
u
k
u
u
k
k
u
u
u
u
k
k
k
u
k
k
k
k
u
k
u
u
k
k
u
k
k
k
u
k
k
u
u
u
u
u
u
u
u
k
u
k
k
k
u
u
k
u
u
k
k
k
k
k
k
u
u
u
k
k
u
u
k
k
k
u
k
k
k
u
u
u
k
u
u
u
k
u
u
u
k
k
u
u
u
u
k
u
k
k
k
k
u
k
k
k
k
u
k
u
k
u
u
u
k
u
u
k
k
u
u
k
k
k
k
k
u
u
u
u
u
u
u
u
k
k
k
u
k
k
k
k
k
k
u
u
u
k
u
u
u
u
u
k
k
u
k
k
u
u
k
k
u
u
u
u
u
k
k
k
k
u
u
u
k
u
u
k
k
k
k
k
u
u
k
k
k
u
u
u
k
u
u
u
k
u
k
u
k
u
u
k
u
k
u
k
u
u
u
u
k
u
u
k
u
u
k
k
u
k
u
u
k
u
u
k
k
u
k
k
k
k
k
k
k
u
u
u
k
u
u
u
u
u
u
k
k
k
u
k
u
u
u
k
u
u
u
u
k
k
u
u
u
u
k
k
k
k
u
k
u
k
k
k
u
k
u
u
k
u
u
k
u
k
k
u
k
k
u
k
k
u
k
k
k
k
k
k
u
u
u
k
k
u
k
k
u
k
k
k
k
k
k
k
u
u
k
u
k
u
k
u
u
k
k
k
u
u
k
k
k
k
u
k
u
u
u
u
k
k
k
k
u
k
u
k
k
k
k
u
k
u
k
k
k
k
k
k
u
k
k
u
k
k
u
u
u
u
k
k
u
u
u
u
k
u
k
u
k
k
u
u
u
u
k
k
k
k
k
u
u
k
k
k
k
u
u
k
k
k
k
u
k
u
k
u
u
k
k
u
u
k
k
k
u
k
k
k
u
u
k
k
u
u
k
k
k
k
k
k
k
k
u
u
u
u
u
u
u
k
u
u
u
k
k
k
k
u
k
k
k
k
u
u
k
k
u
u
k
u
u
k
k
k
k
k
u
u
u
u
u
u
k
k
k
u
u
k
u
u
u
k
u
u
k
u
k
u
u
u
k
u
u
u
k
u
u
u
u
u
k
u
k
k
u
k
u
k
k
k
u
k
k
k
k
k
k
u
k
k
u
u
k
k
u
u
k
k
k
u
k
u
k
k
k
k
k
u
k
u
u
u
u
k
u
k
k
k
k
u
k
u
k
u
u
k
u
u
u
k
k
k
k
u
k
u
u
u
u
k
k
u
k
k
k
k
u
u
u
u
u
k
u
u
k
k
u
u
u
k
u
u
u
k
u
u
u
k
u
k
k
u
u
k
k
k
u
u
u
k
u
u
k
u
u
u
k
u
k
u
k
k
k
k
k
k
k
u
k
k
k
u
u
k
u
k
k
u
u
k
k
u
u
u
k
u
k
k
k
u
k
u
u
u
k
k
u
u
u
k
k
u
k
k
u
k
k
k
k
k
u
k
u
k
u
u
k
u
u
k
u
k
u
k
u
k
k
u
k
k
k
k
k
u
k
u
k
u
u
k
u
k
k
u
k
k
k
u
k
u
k
k
k
u
k
u
u
u
u
k
k
k
k
u
u
u
u
u
u
k
k
k
u
u
k
u
k
u
u
u
k
u
k
u
u
k
k
u
k
u
k
u
u
u
u
k
k
k
k
u
u
k
k
u
k
u
u
k
u
k
u
k
u
k
k
k
u
u
k
k
k
k
u
k
k
k
k
u
k
k
k
u
u
u
k
u
u
u
u
k
k
u
k
k
k
k
k
k
k
k
k
u
u
k
u
k
k
u
u
u
k
u
k
k
k
k
u
u
k
k
k
u
k
k
u
u
u
u
u
k
k
k
u
k
u
u
u
k
k
u
u
u
u
k
k
k
u
u
u
k
u
k
u
u
u
k
u
u
u
k
k
u
u
u
k
u
k
k
u
u
k
k
u
u
k
k
k
u
u
k
u
k
k
u
u
u
k
k
k
k
u
k
u
u
u
k
k
u
u
k
k
k
u
k
k
k
k
u
u
u
k
u
u
u
u
u
k
u
u
k
u
k
k
u
k
k
u
u
k
k
u
u
u
k
k
u
u
u
k
k
k
k
k
u
u
u
u
u
u
u
u
k
u
u
k
k
k
u
u
k
u
k
u
k
k
k
k
k
k
k
k
k
u
k
k
k
u
u
k
u
k
k
k
k
k
k
k
k
u
u
k
k
u
u
k
u
k
k
u
k
k
k
k
k
k
k
k
k
u
k
u
k
k
k
u
k
k
u
u
u
u
u
u
k
k
u
k
k
k
u
u
k
k
u
k
u
u
u
k
k
u
k
u
u
k
k
k
u
k
u
u
u
k
k
u
u
u
k
u
k
u
k
u
k
k
u
k
k
u
k
k
k
u
u
k
u
u
k
u
k
u
k
u
k
k
k
k
k
u
u
u
u
k
u
u
k
u
k
k
k
k
k
u
k
u
k
u
k
u
u
u
u
u
k
k
u
k
k
u
u
k
u
u
u
k
u
u
u
k
u
k
u
u
u
u
k
u
k
k
u
k
u
k
u
u
k
u
k
u
u
k
k
u
u
u
u
k
u
u
u
k
u
u
k
u
k
k
u
k
k
k
u
u
u
u
u
u
u
u
u
k
u
k
u
k
u
k
u
k
k
u
u
k
k
k
u
u
u
k
u
k
k
k
k
k
u
k
u
u
u
k
k
k
u
u
u
k
k
k
k
u
k
u
u
u
k
k
u
k
k
k
k
u
u
k
k
k
u
u
u
u
k
k
k
k
k
u
k
u
u
k
k
u
u
k
k
k
u
k
k
k
k
k
u
k
k
u
k
k
u
u
u
k
k
u
u
u
k
u
k
k
k
u
k
u
k
u
k
u
u
k
k
u
u
u
k
u
k
u
k
k
u
u
u
k
k
u
k
k
k
u
u
u
u
k
u
k
u
u
u
u
u
k
k
k
k
u
u
k
u
k
u
k
u
u
k
u
u
u
k
k
u
u
u
u
k
u
u
u
u
k
u
k
u
k
u
k
u
k
u
k
k
u
u
u
u
u
u
k
u
u
u
k
u
u
u
k
k
u
k
k
k
k
k
u
k
u
k
u
u
u
k
u
u
k
k
k
u
u
u
k
u
k
k
u
u
k
k
k
u
u
k
u
u
u
k
k
u
u
u
u
u
u
u
u
u
u
k
u
u
k
k
k
k
u
k
k
k
k
k
u
u
u
u
u
k
k
k
k
u
k
u
u
k
k
k
u
k
k
u
k
u
k
u
k
k
k
u
k
k
u
k
u
u
k
u
k
k
u
k
k
k
u
u
k
k
u
u
u
u
u
k
u
u
k
u
k
u
k
u
u
k
k
k
k
k
k
k
k
k
k
k
k
u
k
k
u
k
u
k
u
k
k
u
k
k
k
k
k
k
u
k
u
u
k
u
k
u
k
u
k
k
k
u
u
k
k
k
k
u
k
u
u
k
u
u
u
u
u
u
k
u
u
k
u
u
u
k
u
k
u
u
u
u
k
k
k
u
k
u
k
u
k
k
u
u
k
u
k
k
u
k
u
u
k
u
k
u
k
u
u
u
u
u
k
u
u
u
u
u
k
u
k
u
u
k
k
u
k
k
u
u
u
k
k
u
u
u
k
u
u
k
u
u
k
u
u
u
k
u
u
k
k
k
k
u
k
u
u
k
u
u
k
k
k
u
k
k
u
u
k
k
u
k
k
u
u
u
u
k
u
u
u
k
u
k
u
k
k
u
u
u
u
k
u
u
u
k
u
u
k
k
u
u
k
k
u
k
k
u
u
k
u
u
k
k
k
u
k
k
u
u
u
u
k
u
u
u
k
u
u
k
k
u
k
k
k
u
u
u
u
u
k
u
k
k
k
k
u
k
u
u
k
u
u
k
u
k
k
u
k
u
k
k
u
u
u
k
k
u
k
u
u
k
k
k
k
u
u
u
u
k
k
u
k
u
k
k
k
u
u
u
u
u
u
u
u
u
u
k
u
u
k
k
u
k
k
u
k
k
u
u
k
u
k
u
u
k
u
u
k
k
k
u
u
u
k
u
k
k
k
k
u
k
u
k
u
u
k
u
u
k
u
u
k
k
k
u
u
u
u
k
u
u
k
u
u
u
k
u
u
k
u
u
k
k
k
u
k
k
u
k
k
u
u
k
k
u
u
u
k
k
k
k
k
u
u
k
k
u
u
k
k
u
u
u
u
k
u
u
u
k
k
k
k
k
k
k
k
u
k
u
k
u
k
k
k
u
u
k
k
u
k
u
k
u
k
k
k
u
k
u
u
u
k
k
u
k
k
k
k
k
u
k
u
u
k
k
k
k
u
u
u
k
u
u
u
k
u
k
u
k
k
u
k
k
k
k
u
u
u
u
u
k
k
k
k
u
k
u
k
u
k
u
k
k
k
k
u
u
u
k
u
k
u
k
u
u
u
u
u
k
k
k
u
u
k
u
u
k
k
u
k
u
u
k
u
k
u
k
u
u
k
u
k
u
u
u
u
k
u
k
k
k
u
u
k
k
u
k
k
u
k
k
k
k
u
k
k
k
u
u
k
k
u
k
k
k
u
u
k
k
k
k
k
k
u
u
k
k
k
u
k
u
u
u
k
k
u
k
k
k
k
k
u
k
k
k
u
k
u
k
u
u
u
k
k
k
u
k
u
k
k
u
k
k
u
k
u
k
k
u
u
u
u
k
k
u
k
k
k
k
k
k
u
k
u
k
u
u
u
u
u
u
u
k
k
u
k
u
k
k
u
u
k
k
k
u
u
k
u
u
k
u
u
k
k
u
u
u
u
u
k
k
k
k
u
u
k
u
k
k
k
u
u
k
k
u
u
k
k
k
u
k
k
u
u
k
k
k
k
k
u
u
u
u
u
k
k
k
k
k
k
u
k
k
k
k
k
u
u
u
u
u
k
k
k
u
u
u
k
u
k
k
u
k
u
u
u
k
u
k
u
k
k
k
k
u
u
k
u
u
u
u
k
u
k
u
k
k
k
k
k
u
u
u
k
u
k
k
k
k
u
u
u
k
k
k
u
k
u
k
k
u
u
u
u
k
u
k
k
u
u
k
k
u
u
u
u
u
u
u
k
k
u
k
k
u
u
k
u
u
k
u
u
u
u
k
k
k
k
u
k
u
k
k
u
u
u
k
k
u
u
k
k
k
u
u
k
k
u
u
u
k
u
k
u
u
k
u
k
u
k
k
k
k
k
u
k
k
u
u
k
k
k
u
k
k
u
k
u
u
u
u
k
k
u
u
k
u
u
u
k
k
k
u
k
u
k
u
k
k
k
k
u
u
k
k
k
u
k
u
u
u
k
k
u
k
u
u
k
u
u
k
k
k
u
k
k
k
k
u
k
u
k
u
k
k
k
u
k
k
u
u
u
u
u
k
k
u
u
u
k
k
k
k
u
k
u
u
k
k
k
k
u
u
k
u
k
u
u
u
u
k
k
k
u
k
u
k
k
u
k
u
u
k
k
u
k
k
u
k
k
u
u
k
k
u
k
u
k
k
u
u
k
u
k
k
u
u
k
k
u
u
k
u
k
k
u
k
u
u
u
k
u
k
u
u
k
u
k
k
u
k
u
u
u
u
k
u
k
k
k
k
k
u
u
k
k
u
u
k
k
u
u
k
k
u
k
k
k
k
u
u
u
k
k
k
k
u
u
k
k
u
u
k
u
k
u
k
k
u
k
u
k
u
u
k
u
u
k
u
u
k
k
k
k
u
k
u
u
k
k
u
k
u
k
u
k
u
u
k
k
k
u
u
k
k
k
k
k
k
u
u
u
u
k
k
u
k
u
k
u
u
k
u
k
u
k
k
u
u
u
u
k
u
k
u
u
u
u
k
k
k
u
k
k
u
u
k
u
u
u
u
u
u
u
k
u
u
u
k
k
u
u
u
k
k
u
u
u
u
k
k
k
u
k
k
u
u
k
u
u
u
k
k
k
u
u
k
u
k
k
u
u
k
u
u
u
u
u
k
k
u
u
u
u
u
k
u
u
u
k
u
u
u
u
k
k
k
u
u
u
k
u
u
k
k
k
u
u
u
u
u
u
u
u
u
u
u
u
u
u
k
u
k
u
k
k
u
u
k
u
u
k
u
k
k
u
k
u
u
k
u
k
k
u
u
u
k
u
k
k
k
u
u
u
k
k
k
k
u
u
u
u
u
k
u
k
k
k
u
u
k
u
u
u
k
k
k
u
u
u
u
u
k
u
k
u
u
k
u
u
u
k
u
k
k
k
u
k
u
u
k
k
u
k
k
u
u
k
u
u
k
k
u
k
u
u
k
u
k
k
u
k
k
u
u
k
k
k
k
k
u
u
u
k
k
u
k
k
k
u
u
u
u
u
k
k
k
u
u
u
u
k
k
u
u
k
u
u
u
k
u
u
k
u
u
k
k
k
k
k
u
u
k
u
u
k
k
k
k
u
k
u
k
k
k
k
k
u
u
u
u
u
k
k
u
k
k
u
u
k
k
k
u
u
u
k
u
k
k
k
k
u
u
u
k
u
u
k
k
u
k
k
u
k
k
u
k
k
u
u
k
k
k
k
u
k
u
k
u
u
k
u
u
u
u
k
u
k
u
u
k
u
k
k
k
k
k
u
k
k
u
u
k
u
u
u
k
k
k
k
u
k
k
k
u
u
u
u
k
k
u
k
k
k
k
k
k
k
k
k
u
u
k
k
u
u
k
k
u
k
k
u
k
u
k
k
u
u
k
k
k
k
u
k
k
k
u
k
u
u
u
k
u
u
k
u
u
u
k
u
u
k
u
k
k
u
k
u
k
u
u
u
k
u
u
k
k
u
u
u
k
u
u
u
u
k
u
k
u
k
u
k
u
k
u
u
u
k
k
u
u
k
u
u
u
k
u
k
u
k
u
k
k
u
u
u
u
u
u
u
k
u
u
u
u
u
k
u
k
k
k
k
u
k
u
k
u
k
k
k
k
k
u
u
k
k
u
u
u
k
u
k
k
u
u
u
k
k
u
k
u
k
k
u
u
u
u
k
u
k
k
k
k
u
k
k
k
k
k
u
u
u
k
u
k
k
k
u
u
k
k
k
k
u
u
u
u
u
u
k
u
k
k
k
u
u
k
k
k
k
u
k
u
k
k
u
u
k
u
u
u
k
k
u
k
u
k
u
u
u
k
k
u
u
k
u
u
k
k
u
k
u
u
k
u
k
u
k
u
u
k
u
u
k
k
u
k
k
u
k
k
k
u
k
k
u
k
u
k
k
k
k
u
u
k
k
k
k
u
k
k
k
k
u
k
k
u
k
k
u
u
u
u
k
k
u
k
k
k
u
k
k
u
k
u
k
k
u
k
k
u
u
k
k
u
k
k
k
k
u
k
u
u
u
k
k
k
u
k
k
u
u
u
u
u
u
k
k
k
k
k
k
u
u
u
k
u
k
u
k
u
k
k
u
u
u
k
u
u
u
k
u
u
u
u
k
u
k
u
k
k
k
k
u
k
k
u
k
u
k
k
k
k
k
u
k
u
k
u
k
k
u
u
u
u
u
k
k
k
k
u
k
k
k
k
k
u
u
u
k
k
u
k
k
k
u
u
k
k
k
u
k
u
u
k
u
k
u
u
k
k
k
u
k
u
u
u
u
u
k
u
k
k
u
u
k
k
u
u
k
u
u
k
k
u
k
u
k
u
k
u
k
k
k
u
u
u
k
u
k
u
k
k
u
u
u
u
k
k
u
u
u
u
k
k
u
k
u
k
k
u
k
k
k
u
k
u
k
u
k
u
u
u
u
k
u
k
k
k
k
k
u
u
k
u
u
u
k
k
u
k
k
k
k
u
u
k
u
k
k
u
k
u
k
u
k
k
u
u
u
u
k
u
u
k
k
k
k
u
k
u
k
u
k
u
u
k
u
u
k
u
k
u
u
u
k
u
u
k
u
k
u
k
k
k
k
u
k
k
k
k
u
k
u
k
u
k
k
k
u
u
k
k
u
u
u
k
u
u
k
u
u
u
k
k
k
u
k
k
u
k
u
k
u
k
u
k
u
k
k
k
u
k
u
k
u
k
k
k
k
k
u
k
k
k
u
u
u
u
u
k
k
u
u
k
u
u
k
u
u
k
k
k
u
u
u
u
k
u
u
u
k
u
k
u
u
u
u
k
k
u
k
u
u
k
k
u
k
u
k
k
k
k
k
u
u
u
k
u
u
u
k
u
u
u
u
k
u
k
k
k
k
k
u
k
k
u
k
u
u
u
u
u
k
u
k
k
u
k
k
k
k
u
u
u
k
k
k
k
k
k
u
k
u
k
u
k
k
k
u
k
k
k
u
k
k
k
u
k
k
u
u
k
u
k
u
u
u
k
u
u
u
u
k
u
u
k
u
k
k
u
u
k
u
k
u
u
u
k
k
k
u
k
k
k
u
u
u
k
u
u
k
k
u
u
u
u
u
u
k
k
k
u
k
k
u
u
u
u
k
k
u
k
k
k
u
k
k
u
u
k
u
u
k
k
u
k
u
u
k
k
k
k
k
u
u
k
u
k
k
k
k
k
k
u
u
k
u
u
u
u
u
u
k
k
u
u
k
k
k
k
k
k
k
k
u
u
k
k
u
k
k
k
u
k
u
k
u
u
u
u
u
k
u
k
u
k
u
k
u
k
k
u
k
k
u
u
u
u
k
k
k
u
k
k
k
k
k
u
k
k
k
u
k
k
u
u
u
u
k
k
u
k
k
k
u
u
k
k
k
u
u
k
k
u
u
u
k
u
u
u
u
k
k
k
k
k
u
k
k
u
u
k
k
k
k
u
u
u
u
k
u
u
k
k
k
u
u
k
k
u
k
k
u
k
u
u
u
k
k
k
u
k
u
u
k
u
u
u
u
u
k
k
u
u
k
u
k
k
k
k
k
k
k
k
k
k
u
u
k
u
u
u
k
u
k
k
u
u
k
k
k
u
k
u
u
k
k
k
u
u
u
u
k
k
k
k
k
k
k
u
k
u
k
u
k
k
u
u
u
u
k
k
k
k
u
k
u
u
k
k
u
u
u
k
u
k
k
k
k
u
u
k
u
u
k
k
k
u
u
u
u
k
u
u
u
k
u
u
u
k
u
u
k
k
u
k
k
u
k
k
k
k
u
k
k
k
u
k
k
u
k
u
u
k
k
u
u
k
u
u
k
k
k
k
k
u
k
k
u
k
k
u
u
k
u
k
k
u
u
u
k
k
k
k
u
k
k
u
u
k
k
u
k
k
u
u
u
k
u
u
k
u
k
u
u
k
u
u
u
k
k
k
k
k
u
k
u
k
k
k
u
k
u
k
k
u
k
u
u
u
u
k
k
u
k
k
k
u
k
k
u
k
k
u
k
k
k
u
k
k
k
u
u
k
u
u
k
u
k
u
k
u
k
u
k
u
u
k
u
k
u
u
u
k
u
k
k
u
u
k
u
u
k
k
u
k
k
k
k
u
k
u
k
k
u
k
k
u
k
k
u
u
k
u
u
u
k
k
k
k
k
k
u
u
u
u
k
u
k
u
k
u
k
k
u
u
k
u
u
k
u
u
u
u
u
u
k
k
u
u
k
k
u
k
k
u
k
k
u
k
u
u
u
u
k
u
k
k
k
u
k
k
k
k
k
u
u
u
k
u
u
k
k
u
k
u
k
k
k
k
k
k
k
u
u
u
k
k
u
k
k
u
u
k
u
k
k
u
k
k
u
u
k
k
k
k
k
u
k
u
u
u
k
k
k
k
u
k
k
u
u
k
k
k
k
u
u
u
u
u
k
k
k
u
u
u
k
k
k
u
u
k
k
u
u
k
u
u
k
u
k
k
k
u
k
u
k
u
u
u
u
u
k
u
k
k
k
u
k
u
k
k
k
k
k
k
k
u
u
u
k
u
u
u
u
u
k
k
k
u
k
u
u
k
k
k
k
u
u
u
k
u
k
k
k
k
k
u
u
u
k
u
k
u
k
k
k
k
u
k
k
k
u
u
u
u
u
k
k
k
u
u
k
u
k
k
k
u
u
u
u
u
k
u
u
k
k
u
k
u
u
u
u
u
k
k
k
u
k
k
k
u
k
k
k
k
k
k
k
u
k
u
u
k
k
k
k
k
k
u
k
k
k
u
k
u
u
u
k
u
u
u
u
k
k
u
u
u
u
u
k
u
k
u
u
k
k
u
u
k
u
u
u
u
k
k
k
k
u
k
k
u
k
k
u
k
u
u
k
k
k
k
k
u
k
k
u
k
k
u
u
u
u
u
u
k
u
u
k
k
k
u
u
u
k
k
u
u
u
k
u
k
u
u
k
k
u
u
u
k
u
k
u
u
u
k
k
u
k
u
k
u
k
k
u
k
k
k
u
k
u
k
u
u
k
k
u
k
u
k
k
k
u
k
k
u
k
k
k
k
k
u
k
u
u
k
k
k
u
u
u
k
u
u
k
k
k
u
k
u
u
u
u
u
k
k
u
k
k
u
u
u
u
k
u
u
u
u
k
u
u
u
k
u
u
u
u
u
u
k
k
k
u
u
k
u
k
k
k
k
k
u
k
k
u
k
k
u
k
k
u
u
u
k
k
k
u
u
k
k
u
k
k
u
u
u
k
k
k
u
u
u
k
k
u
k
u
k
u
u
u
u
u
k
k
k
k
u
u
k
k
k
k
u
k
k
k
k
k
k
u
u
u
k
u
k
k
u
u
k
k
k
u
k
u
u
k
k
u
u
u
u
u
u
u
u
k
k
u
k
u
k
u
u
u
u
k
u
k
u
k
u
u
u
k
u
k
u
u
k
k
k
u
k
u
k
k
u
k
k
k
u
u
u
u
k
k
k
u
k
k
k
k
u
k
k
u
k
u
u
u
u
k
k
k
u
u
u
k
k
u
k
k
k
k
k
k
k
k
k
k
k
k
u
u
k
k
k
u
u
k
u
u
k
k
k
k
k
u
u
u
u
k
u
u
u
u
u
u
u
u
k
u
u
u
u
k
k
k
k
k
k
k
k
u
u
k
u
u
u
u
k
u
k
k
k
k
u
k
k
k
u
u
u
u
u
k
u
u
u
k
k
k
k
u
k
u
u
k
u
u
u
u
u
k
u
k
u
k
u
k
u
k
k
k
k
k
k
u
u
k
k
k
u
k
k
u
u
u
u
k
u
k
u
u
u
u
u
u
k
u
k
u
k
u
k
k
k
k
u
u
k
k
u
k
u
u
u
u
k
k
u
u
u
u
u
k
u
u
u
u
u
u
u
k
u
u
k
u
k
u
u
u
u
u
u
u
u
k
u
k
u
k
k
k
u
u
u
k
u
u
u
k
u
k
u
k
k
u
u
k
k
k
u
u
u
k
u
k
u
u
u
u
u
k
k
k
u
u
u
k
k
u
u
u
k
k
k
k
k
k
u
u
u
u
u
k
k
u
k
k
u
u
k
u
u
u
u
u
u
u
k
u
u
u
u
u
k
k
k
u
k
u
u
u
u
u
k
k
u
k
k
u
k
u
k
k
k
k
k
u
u
u
u
u
k
k
u
k
u
u
u
u
u
k
u
k
k
u
u
k
k
k
k
u
k
k
k
k
k
k
k
u
k
k
u
k
u
u
u
k
u
u
u
u
u
k
u
u
k
k
u
k
k
k
u
u
k
k
k
u
u
k
k
u
u
k
u
u
u
k
k
u
u
k
k
u
u
u
k
k
k
u
k
k
u
u
k
k
k
u
k
u
u
k
u
u
u
k
k
u
u
k
k
u
k
u
u
k
k
k
k
k
k
u
u
u
u
k
u
k
u
k
k
k
k
u
k
k
u
k
k
u
k
k
u
k
u
k
u
u
k
u
u
u
u
u
k
k
u
u
k
u
k
u
u
k
u
k
k
k
u
k
u
k
u
k
k
k
k
u
k
u
u
u
k
k
k
u
u
k
k
k
u
k
u
k
k
u
u
u
u
k
k
u
u
k
k
u
u
k
k
u
k
u
u
k
u
k
u
u
u
u
k
k
k
u
k
k
k
k
u
k
k
u
k
k
u
k
u
u
u
u
k
u
k
k
k
u
k
u
k
u
u
k
u
u
u
k
k
u
k
u
k
u
u
k
u
k
u
k
u
k
k
u
k
k
u
u
k
u
k
k
k
k
u
k
k
k
k
u
u
k
u
u
u
u
u
u
k
u
k
k
u
k
k
k
u
u
k
k
u
u
u
u
u
u
u
k
k
k
k
k
k
u
u
u
u
u
u
k
k
u
k
k
k
u
k
k
k
u
u
u
u
k
u
u
u
u
u
u
u
u
k
u
k
u
k
k
u
k
k
u
k
u
u
u
k
k
u
u
k
k
k
u
k
k
u
k
u
k
k
k
u
k
k
k
u
k
k
k
k
u
k
u
u
u
k
k
u
k
u
k
k
k
u
u
u
u
u
u
u
u
u
u
k
k
k
u
k
k
u
k
k
u
k
k
u
u
k
u
k
u
k
k
u
k
u
k
k
k
k
u
u
k
u
k
k
u
k
u
k
u
u
k
u
k
k
k
k
u
u
u
u
u
u
k
u
u
k
u
u
k
u
u
u
k
k
k
u
k
u
k
k
k
u
u
k
u
k
u
u
k
k
k
k
k
k
k
u
u
u
k
u
u
u
k
u
k
k
k
k
u
u
u
u
u
k
u
k
k
u
u
u
u
k
u
k
u
u
k
k
k
k
k
u
k
k
u
k
k
k
k
u
k
u
k
u
u
k
k
u
u
u
k
k
u
k
k
k
k
k
k
u
u
u
u
u
k
u
k
k
k
k
k
k
u
k
k
u
u
k
k
u
k
k
k
u
u
k
k
k
u
u
u
k
u
u
k
u
k
k
k
k
k
u
u
k
k
u
u
u
u
u
k
k
u
u
u
k
u
u
u
k
k
u
k
k
k
k
u
k
k
k
u
u
k
u
k
u
u
u
u
k
u
u
u
u
k
u
k
k
k
u
k
k
u
u
u
k
u
k
k
k
u
k
u
k
k
k
u
u
k
k
k
k
k
u
u
k
k
k
k
k
k
u
k
k
u
u
k
k
k
u
u
u
u
u
k
u
k
u
u
u
k
k
u
k
k
u
k
k
k
u
k
k
u
u
u
u
u
u
u
u
u
k
u
u
u
u
k
u
k
k
k
u
k
k
k
u
u
k
k
k
u
u
u
k
k
k
k
k
u
k
u
k
u
k
k
k
u
u
u
u
u
k
u
k
k
u
u
k
u
u
u
u
u
u
k
u
k
k
k
k
k
u
k
k
k
k
u
u
u
u
k
u
u
u
u
k
k
u
k
u
u
k
k
k
u
k
u
u
k
u
k
u
k
k
u
u
u
k
k
k
u
k
k
u
k
k
k
k
u
u
u
u
u
k
u
u
k
u
u
u
u
k
k
k
k
k
u
k
u
k
k
k
u
k
k
u
k
u
k
k
u
k
k
k
u
k
k
k
k
u
u
u
k
k
u
u
u
k
k
k
k
u
u
k
k
k
u
k
u
u
k
k
u
u
k
k
k
k
k
u
u
u
k
u
u
k
u
u
k
u
u
k
k
u
k
u
k
u
u
u
u
u
k
k
u
k
k
u
k
k
u
u
u
u
k
u
k
u
u
k
u
u
u
u
k
u
k
u
k
k
k
k
u
k
u
k
u
u
u
k
u
u
k
u
u
u
u
u
k
k
u
k
k
k
u
k
u
u
u
u
u
u
k
k
u
u
k
u
u
k
u
k
u
k
k
k
u
u
k
k
k
u
k
k
k
u
u
u
u
k
k
u
k
k
k
k
u
u
u
k
u
u
k
k
u
k
u
k
u
k
k
k
k
k
k
k
k
u
k
k
u
u
k
u
k
u
k
u
u
k
k
u
u
u
k
u
k
u
u
u
k
u
k
k
k
u
u
k
u
u
k
u
u
k
k
u
k
k
u
u
k
k
k
u
u
u
u
k
k
u
u
u
u
u
k
u
u
k
k
k
k
u
k
u
u
u
k
u
u
u
k
k
k
u
u
u
k
u
k
k
k
k
u
u
k
k
k
k
u
k
u
u
u
k
u
k
k
u
u
u
k
u
u
u
k
u
k
u
k
u
u
u
u
k
k
u
k
u
k
u
u
u
k
u
k
u
u
k
k
k
k
u
k
u
k
k
u
k
k
u
u
u
u
u
k
k
u
u
u
k
k
u
k
u
u
k
k
u
k
u
k
u
u
k
k
k
u
u
u
k
u
k
k
k
k
u
u
k
k
u
u
u
k
k
u
u
u
k
k
u
k
k
u
u
u
k
k
k
k
k
u
k
u
k
u
u
u
u
u
k
u
u
u
u
k
u
u
u
u
k
k
k
k
u
u
u
u
k
k
u
k
u
u
k
u
u
k
u
k
k
u
k
u
u
u
k
k
k
u
u
k
u
k
u
k
u
u
k
u
u
k
u
k
u
u
k
u
k
u
u
u
k
u
u
u
k
k
k
k
k
k
u
u
k
k
u
k
k
k
u
u
k
u
k
k
u
u
u
u
u
u
k
u
u
u
k
u
k
u
k
u
k
u
k
k
u
u
k
u
u
k
u
u
u
k
k
k
u
u
u
k
u
k
k
u
k
k
k
k
k
k
k
k
k
u
k
k
k
u
k
k
u
u
k
k
k
u
k
k
u
u
u
k
k
k
u
k
u
k
k
k
u
k
u
k
u
k
u
k
u
k
k
u
u
k
u
u
k
k
u
k
u
k
u
k
u
u
k
k
k
u
k
u
k
u
u
k
k
u
u
k
k
u
u
u
u
u
k
u
k
k
u
u
u
u
k
k
k
k
k
k
k
k
k
k
k
k
u
k
u
u
k
u
k
u
u
k
k
u
k
k
k
k
k
u
k
k
k
k
u
u
k
k
u
u
k
u
u
u
u
k
k
u
u
k
u
k
u
k
u
u
u
u
k
u
k
k
u
u
k
k
u
u
k
u
k
u
u
u
k
k
u
k
u
u
u
u
u
k
k
k
k
u
k
k
k
k
k
u
u
u
k
u
u
u
k
k
u
k
u
u
u
u
k
k
k
u
u
u
k
k
u
u
u
u
k
u
u
u
u
u
k
k
k
k
u
k
k
k
k
k
k
k
u
u
u
u
k
k
u
u
k
u
u
u
u
k
k
u
k
k
u
u
u
u
k
u
k
u
k
k
k
k
u
u
k
u
k
u
k
u
u
k
u
u
u
k
u
k
k
u
u
k
k
k
k
u
k
u
k
k
k
u
k
u
k
k
u
k
u
k
u
u
u
u
k
k
k
k
k
k
u
k
u
u
u
u
k
k
k
u
u
k
k
u
k
u
u
u
u
u
k
u
k
u
k
u
u
k
k
k
k
k
u
u
u
k
k
k
u
k
u
u
k
u
k
u
k
u
u
k
k
u
u
u
k
u
k
u
k
u
k
u
k
k
u
u
u
u
u
k
u
k
k
u
k
u
k
u
u
u
u
u
u
k
k
k
u
u
k
u
k
u
u
u
k
u
u
k
k
u
k
k
u
u
k
u
u
u
u
k
k
k
k
k
k
k
k
u
u
k
k
u
k
u
k
u
k
u
u
u
k
k
u
k
u
u
k
k
k
u
u
k
k
u
u
u
k
k
k
u
u
k
k
u
u
k
u
k
k
u
k
k
u
u
k
u
u
k
u
u
k
k
k
u
k
u
u
u
u
u
k
u
u
u
k
u
k
u
k
k
u
u
u
u
k
u
u
u
k
u
u
k
k
k
k
k
k
k
u
u
u
k
k
u
u
k
k
u
u
k
u
u
u
k
u
k
k
u
u
u
k
u
k
k
u
k
k
u
u
u
k
u
k
u
k
k
k
k
k
u
k
u
k
k
k
k
k
u
u
k
k
k
u
u
u
k
k
k
u
u
k
u
k
u
k
k
k
k
k
k
k
u
u
k
u
k
u
k
u
u
k
k
u
k
u
k
k
k
k
u
k
u
u
k
k
k
u
u
u
k
k
u
u
k
u
k
u
u
u
k
u
k
u
k
k
k
u
k
k
u
u
k
u
k
u
u
u
u
u
u
k
u
u
u
u
u
u
k
u
k
k
u
k
k
k
u
u
k
u
u
k
u
k
u
u
u
u
k
k
u
k
k
k
u
u
u
k
u
k
u
k
u
u
u
k
k
u
u
k
k
u
u
u
k
u
u
u
u
u
u
u
u
u
u
u
k
k
k
u
u
u
u
u
u
u
k
u
u
u
k
u
k
u
u
u
k
u
k
k
u
u
k
k
k
k
k
k
k
k
u
u
k
k
k
k
u
u
u
u
u
k
u
u
u
u
k
k
u
u
u
k
u
k
k
k
k
u
k
k
u
k
k
k
k
k
u
u
k
k
k
u
k
k
u
u
k
u
k
k
k
u
u
u
u
u
u
k
u
k
u
k
k
k
u
k
k
u
k
u
k
k
k
u
k
k
k
u
u
k
u
k
u
k
k
k
u
u
k
k
k
u
k
k
k
k
k
u
k
k
u
u
u
u
u
k
u
k
k
k
u
k
u
u
k
k
k
u
k
k
u
u
k
u
k
u
k
u
k
u
k
u
u
u
k
k
k
k
k
k
k
k
u
u
u
u
k
k
k
u
k
u
u
u
u
k
u
k
k
u
k
k
k
k
k
u
k
k
u
k
k
k
k
u
u
u
k
k
k
u
k
u
u
k
u
u
u
k
u
u
k
k
u
u
k
u
k
k
k
k
u
k
k
u
u
u
k
k
u
k
u
u
u
u
k
u
u
u
u
u
u
u
k
k
k
u
k
k
u
k
k
k
u
u
k
k
u
u
k
k
k
u
k
u
k
u
k
u
u
u
k
u
u
u
k
u
k
u
k
u
u
u
k
k
u
k
u
u
k
k
k
u
k
u
k
u
k
k
k
k
u
k
u
k
u
u
u
u
k
u
k
k
k
u
k
u
u
u
u
k
u
u
k
u
u
u
k
u
k
u
u
k
k
k
u
u
k
u
k
k
k
k
k
u
u
k
u
u
u
u
u
k
k
k
k
k
u
u
k
u
u
k
u
u
k
u
k
u
u
k
u
k
k
k
k
k
u
u
k
k
u
k
u
u
u
u
k
k
k
u
k
u
k
u
u
k
u
k
k
k
k
u
u
u
u
k
k
k
u
u
k
u
k
k
u
u
u
u
k
k
u
k
u
k
u
k
u
k
k
u
u
k
k
k
k
u
u
k
k
k
k
k
k
k
u
u
u
u
u
k
u
k
k
k
u
k
k
k
k
u
k
u
u
u
k
u
k
k
k
u
k
u
k
u
k
k
k
u
k
k
u
u
k
k
u
k
k
k
k
u
k
u
k
u
k
k
k
u
u
u
u
u
k
u
k
u
u
u
u
k
k
k
u
k
u
k
u
u
k
k
u
k
u
u
u
k
k
k
u
k
k
u
u
u
u
u
u
u
k
u
k
k
k
u
k
k
u
u
u
u
k
k
u
k
u
u
u
k
u
u
k
k
k
u
u
k
k
k
u
k
k
k
k
u
k
u
k
k
u
k
u
u
u
k
u
k
k
k
k
k
u
k
k
u
u
k
k
u
u
k
u
u
u
k
u
k
k
k
k
k
u
u
u
u
k
u
u
u
k
k
k
u
u
u
k
k
u
u
u
k
k
k
k
u
u
u
k
k
u
u
u
u
u
k
u
k
k
u
u
k
u
k
k
k
u
k
k
u
k
k
k
k
k
k
u
k
k
u
u
k
k
u
k
k
k
u
u
u
k
u
u
u
k
u
u
u
u
u
u
k
u
k
k
u
u
u
k
k
k
k
u
k
k
u
k
u
k
u
u
u
u
k
u
k
k
k
k
u
u
u
u
u
k
k
u
u
u
u
k
k
u
k
u
u
k
u
k
u
k
u
u
u
k
u
u
k
k
k
k
u
u
u
u
u
u
u
u
u
k
u
k
u
u
k
u
u
k
k
u
k
u
k
u
k
k
k
k
k
k
k
k
k
u
k
u
k
u
k
u
k
k
k
k
k
u
u
k
k
k
u
k
u
u
u
k
u
k
u
k
k
k
k
u
u
u
u
u
u
u
u
u
u
k
u
k
u
k
k
k
u
k
k
k
k
u
k
k
k
k
u
u
k
u
u
u
u
k
u
k
u
k
k
u
u
k
u
u
k
u
k
u
u
u
u
u
u
k
k
u
k
k
k
u
u
u
u
u
k
u
u
u
u
u
k
k
u
k
k
k
u
u
u
k
k
u
u
k
k
k
u
u
u
k
u
u
u
k
k
u
k
u
k
k
u
k
u
k
k
u
k
u
k
u
u
k
u
u
u
k
u
k
u
u
u
k
k
k
u
k
k
k
u
u
k
u
k
u
u
u
u
u
u
k
k
u
u
k
k
u
u
u
k
k
k
u
k
u
k
u
u
u
k
u
u
u
k
k
u
u
u
u
k
k
k
k
u
u
u
u
u
k
u
k
k
u
k
k
u
k
u
u
u
k
k
u
k
k
k
k
u
u
k
u
k
k
u
u
u
u
k
u
u
k
k
k
k
u
u
u
k
k
u
u
u
k
u
u
u
u
k
u
u
u
u
u
k
u
u
k
u
k
u
k
k
u
k
u
k
u
u
u
u
k
u
u
u
u
k
u
k
k
u
u
u
k
u
u
k
k
k
k
u
u
u
u
u
k
k
k
k
u
k
k
k
u
u
k
k
k
u
k
u
u
u
k
k
u
k
k
k
k
u
u
u
u
k
u
k
k
u
k
k
k
u
u
k
k
u
k
k
k
u
u
u
k
u
u
u
k
u
k
k
u
k
k
u
u
k
u
u
u
u
k
k
u
u
u
u
u
u
u
k
u
u
u
u
u
k
k
u
u
k
k
k
k
k
k
k
k
u
k
u
k
k
u
k
k
k
k
k
u
u
k
u
k
k
k
u
k
u
k
k
k
k
u
k
u
k
k
u
k
u
k
u
k
k
k
u
u
u
u
u
u
k
k
k
k
k
u
k
u
k
u
u
k
u
u
u
u
k
k
u
k
u
k
u
k
u
u
u
u
k
k
u
k
k
k
u
u
u
k
k
k
u
u
k
k
u
k
u
u
u
k
u
k
k
k
u
u
u
k
k
k
k
k
u
u
k
k
k
u
u
k
u
k
k
k
u
k
u
k
k
u
u
u
k
k
u
k
k
u
u
k
k
u
u
u
k
k
k
k
u
u
u
u
u
u
u
k
k
k
k
u
u
u
k
u
u
k
u
u
k
k
u
u
u
k
u
k
k
u
k
k
k
u
k
k
u
u
k
k
k
u
u
u
u
u
k
u
k
k
k
k
k
u
k
u
k
k
u
u
k
u
u
u
k
k
u
u
u
k
k
u
u
u
u
k
k
k
k
u
k
u
k
k
k
u
u
k
k
u
k
u
k
u
k
k
k
k
k
k
u
u
k
k
k
k
u
k
u
k
u
k
k
u
k
u
k
u
k
u
u
k
k
u
u
u
k
k
u
u
k
u
u
k
k
k
k
u
k
u
k
k
k
u
u
k
u
k
k
k
u
k
k
u
k
u
u
u
k
u
k
k
u
k
u
u
k
k
k
u
u
u
u
u
u
k
u
u
k
k
u
u
u
k
u
k
k
k
u
u
k
k
u
k
u
k
k
u
u
k
k
u
u
k
u
u
k
k
k
k
u
k
k
u
k
k
k
k
k
k
k
k
k
k
u
u
k
u
k
u
u
k
u
u
u
k
u
u
u
u
k
u
u
u
k
u
u
k
u
u
u
u
k
k
u
k
k
k
k
k
u
u
k
k
k
k
k
u
u
u
k
u
u
u
u
u
u
u
u
u
u
u
k
k
k
u
k
u
u
u
k
k
u
k
k
k
u
u
k
k
k
u
u
u
u
k
u
k
u
k
u
u
u
k
u
k
k
k
u
u
k
k
k
u
u
u
k
u
u
u
k
k
k
u
u
k
u
k
k
u
u
k
u
u
k
u
u
k
u
k
u
u
u
u
k
k
u
u
u
u
k
k
u
u
u
k
u
u
u
k
u
k
u
u
u
u
k
u
u
k
u
u
k
k
k
k
u
u
k
u
u
u
u
u
k
u
k
u
k
u
u
u
k
u
u
k
u
k
k
u
u
u
u
k
u
u
k
k
k
k
u
k
u
k
u
u
k
u
u
k
k
u
u
u
k
k
k
k
u
k
u
u
u
u
k
u
k
k
k
k
k
k
u
k
k
u
u
u
u
u
k
k
u
u
k
u
k
u
k
k
k
u
u
k
u
u
k
u
k
k
k
u
k
u
u
u
u
u
u
u
k
k
k
u
u
k
u
u
u
u
k
k
k
u
k
u
u
u
k
u
u
u
k
u
u
u
u
k
k
u
k
u
u
k
u
k
u
u
u
k
k
k
u
u
k
k
k
k
k
u
u
k
u
k
u
k
u
u
k
k
k
u
k
u
u
k
k
u
k
k
k
u
k
k
u
u
k
k
u
u
u
k
k
k
k
k
k
k
u
k
k
k
u
k
u
k
k
k
u
u
u
k
u
u
u
k
u
u
k
u
u
k
u
u
k
k
k
k
k
u
k
u
k
u
k
u
u
k
k
k
u
u
k
k
k
k
u
u
u
u
k
u
k
k
k
k
k
k
u
u
k
u
u
k
u
u
k
u
k
u
u
u
k
u
k
u
u
k
u
k
u
k
u
k
k
k
u
u
u
u
k
k
u
u
u
k
u
k
u
k
u
u
u
u
u
k
k
u
u
u
k
k
u
u
k
u
k
u
u
k
u
u
k
k
k
u
u
u
k
k
k
k
u
k
u
k
k
u
u
u
u
k
k
u
u
k
k
u
u
k
u
k
k
k
k
u
k
u
k
u
u
u
u
k
k
k
k
u
u
k
k
u
u
k
k
k
k
k
k
u
u
u
k
k
u
k
k
k
k
u
u
k
k
u
k
u
k
k
u
u
k
u
u
u
u
k
u
k
u
k
u
u
u
k
k
k
k
k
u
u
k
u
k
k
k
u
u
k
u
u
u
k
u
u
u
u
u
u
k
u
u
k
u
u
k
u
u
k
u
u
k
u
k
k
k
u
u
k
k
k
u
k
u
u
u
k
u
k
u
k
u
k
u
k
k
k
u
u
u
k
u
u
u
u
k
u
k
u
u
k
k
u
k
k
u
k
k
u
u
k
u
u
k
u
k
u
k
k
u
k
u
k
u
k
u
k
k
u
u
u
k
u
k
u
k
k
u
u
k
k
u
u
u
k
u
u
k
u
u
k
u
u
u
u
k
k
k
k
k
k
k
u
u
k
u
k
k
u
k
k
k
k
k
u
k
k
k
k
k
u
k
u
k
u
u
k
u
u
k
k
u
k
k
u
u
u
u
u
k
k
u
k
k
u
u
u
u
k
u
u
k
u
u
k
k
u
k
k
u
k
u
k
k
k
k
k
k
k
k
u
k
u
u
k
k
u
u
u
k
u
k
u
u
u
u
k
u
u
u
k
k
u
u
u
k
k
u
u
u
k
k
u
k
u
u
u
u
k
u
u
k
k
k
u
k
u
k
u
u
u
k
u
k
u
u
u
k
u
k
u
k
u
k
k
k
k
u
u
u
u
k
u
k
k
k
k
u
k
u
k
u
k
k
u
u
u
k
k
u
k
u
k
k
u
k
k
u
u
u
k
k
u
u
k
k
k
u
k
k
k
u
k
u
k
u
u
u
k
u
k
k
k
u
k
u
k
k
u
u
u
u
u
k
u
k
k
u
u
u
k
k
k
k
k
u
k
k
u
k
u
u
k
k
k
u
k
k
u
k
k
k
k
u
u
k
u
u
k
k
k
u
u
k
u
u
k
u
k
u
k
k
u
k
u
k
k
k
k
k
k
u
k
k
k
u
u
u
k
k
k
k
k
u
k
k
k
u
u
k
k
u
u
k
k
u
k
k
u
u
k
k
k
k
k
k
k
u
k
k
u
u
k
u
k
u
k
k
u
u
k
k
k
u
k
u
u
u
u
k
u
k
k
u
u
k
u
u
u
k
k
k
u
k
k
u
k
u
k
k
u
k
k
u
k
u
u
k
k
k
u
k
k
k
u
u
k
k
u
u
k
k
k
k
k
k
u
k
k
u
k
u
k
u
u
k
u
k
k
k
k
u
k
k
k
k
k
u
k
u
k
u
u
k
u
k
u
k
k
k
u
k
u
k
u
u
u
k
u
u
u
u
k
k
k
k
k
k
u
k
u
k
k
u
u
k
k
u
k
u
k
k
k
u
k
k
u
k
u
u
k
k
u
u
k
u
k
u
u
u
k
k
u
u
k
u
u
u
u
u
u
u
u
k
u
k
u
u
k
k
u
k
k
u
u
k
k
k
u
u
k
k
k
k
u
u
k
u
k
k
k
k
k
k
u
k
k
k
k
k
k
k
u
u
u
u
k
k
u
u
k
k
u
k
u
u
u
k
u
k
k
k
u
k
u
k
u
k
k
u
u
u
k
u
u
k
k
u
k
k
k
u
k
k
k
u
k
u
u
k
k
u
u
u
u
u
u
u
u
k
u
u
k
k
u
k
u
u
k
u
u
k
u
k
u
k
k
k
k
k
k
u
u
u
k
u
k
k
k
k
k
u
k
u
k
k
k
u
k
k
k
u
k
k
k
u
k
k
k
k
k
u
k
k
u
k
k
u
k
u
k
u
k
k
k
u
k
k
k
k
k
u
k
u
u
u
k
u
k
k
u
u
k
k
u
u
u
k
k
u
k
k
u
u
k
u
u
u
k
u
u
k
k
k
k
k
u
u
k
u
u
k
u
u
u
k
k
u
u
k
k
u
k
k
u
u
k
u
u
k
u
k
k
u
u
k
u
k
u
u
u
u
u
k
u
k
u
k
k
u
k
u
u
k
k
u
u
u
u
k
k
k
k
u
k
k
k
k
u
u
u
u
k
u
k
k
u
k
u
u
k
k
u
k
k
u
k
u
k
k
u
u
k
k
k
k
k
u
u
k
k
k
k
k
u
u
u
k
k
k
k
k
u
k
k
k
u
u
k
k
k
u
k
k
k
u
k
k
k
k
k
u
u
k
k
k
u
k
k
u
k
k
u
k
k
k
k
u
u
u
k
u
u
k
u
u
k
k
u
k
u
u
u
u
u
k
u
u
u
k
k
u
k
k
u
u
u
u
u
u
k
k
k
k
u
u
u
k
u
k
k
u
u
k
k
u
k
u
u
u
u
k
k
u
u
k
u
u
u
u
k
k
k
u
k
k
u
k
u
u
u
k
u
k
k
u
k
k
u
k
u
k
u
u
k
k
u
k
k
k
k
k
k
u
k
k
u
u
u
k
k
u
u
u
k
k
u
k
u
k
k
u
k
u
u
u
u
k
u
k
k
u
k
u
k
u
k
k
k
k
k
u
u
u
u
k
u
u
u
k
u
k
k
u
u
k
k
k
u
k
k
k
k
u
u
k
u
k
u
u
u
k
u
k
k
k
u
u
u
k
k
u
k
k
u
u
k
u
k
k
u
k
u
u
k
u
u
u
u
k
u
k
k
u
k
k
k
k
k
k
k
k
u
k
k
k
k
k
k
k
u
u
k
k
u
u
k
u
k
k
k
u
u
k
k
k
u
k
k
u
u
k
k
u
u
k
u
k
k
k
k
u
u
k
k
u
u
k
u
k
k
u
k
k
k
u
u
u
u
k
u
u
u
u
u
k
k
u
k
u
k
k
u
k
u
u
k
u
u
u
k
u
k
k
u
u
u
k
u
u
u
k
u
k
u
u
k
u
u
k
k
u
k
k
k
k
u
u
u
u
u
k
u
u
u
k
k
k
u
u
k
k
u
k
k
u
u
u
k
k
k
k
u
u
u
u
k
k
u
u
k
u
u
k
u
k
u
k
k
u
u
u
u
k
u
k
k
u
u
k
u
u
u
u
k
u
k
u
k
k
k
u
k
u
u
u
u
u
u
k
u
k
k
k
u
k
u
k
u
u
u
k
k
u
k
u
u
k
u
k
k
k
k
u
k
k
u
k
k
k
k
u
u
u
u
u
u
u
k
k
u
u
u
k
k
u
u
k
k
k
u
k
k
u
u
u
k
u
k
u
u
k
u
u
k
u
u
u
k
k
u
k
u
u
k
k
k
u
k
k
k
k
k
u
u
u
u
u
u
k
u
k
k
u
u
k
u
u
u
k
u
k
k
u
k
k
k
k
u
u
u
k
u
k
k
k
u
k
u
k
k
u
k
k
u
k
u
k
k
k
u
u
k
k
u
k
u
k
u
u
k
k
k
u
u
u
k
u
u
k
k
k
k
k
k
k
k
u
u
k
k
k
u
k
u
k
u
k
k
k
u
k
k
k
u
u
u
k
k
k
u
u
u
k
u
k
k
u
u
k
u
k
u
k
u
u
u
k
k
u
u
k
k
u
u
k
k
u
k
k
u
k
u
u
u
k
u
k
u
u
u
u
u
u
k
k
k
k
k
k
u
k
u
u
u
k
k
k
u
u
k
k
k
k
u
u
k
u
k
u
k
u
k
u
k
k
k
k
k
u
k
u
u
u
u
u
u
k
u
k
u
k
u
k
u
k
u
u
u
k
k
k
u
u
k
k
k
k
k
k
u
u
k
u
k
u
k
u
u
u
k
k
u
u
k
u
u
u
u
k
k
k
u
u
k
k
u
u
k
k
u
u
k
u
u
u
k
k
k
u
k
u
k
u
u
u
u
k
u
u
u
u
k
k
u
k
k
k
u
k
k
k
u
u
k
k
k
u
u
u
k
u
k
u
k
k
u
k
u
u
k
k
u
u
k
k
u
u
u
k
k
u
u
u
u
u
k
u
u
u
k
u
k
u
k
u
u
u
u
u
k
k
k
u
u
u
u
k
u
k
k
u
k
u
k
u
k
u
k
k
u
k
k
u
u
k
u
k
k
k
k
k
k
u
k
u
k
u
u
k
k
k
u
u
k
u
k
k
u
k
u
k
k
k
k
k
u
k
u
k
k
u
k
k
u
u
k
u
u
k
k
u
k
k
u
u
u
k
u
k
k
u
k
u
u
u
k
k
k
k
k
k
u
u
k
k
k
u
k
k
u
k
k
k
u
u
u
k
u
k
k
k
u
k
k
u
k
u
k
u
u
u
u
u
k
k
u
u
k
k
k
k
u
k
u
k
u
k
k
k
u
k
u
u
u
u
u
k
k
u
k
u
u
u
k
u
k
k
k
u
k
k
u
u
u
u
u
k
u
k
u
k
k
k
u
k
u
u
k
k
u
u
u
k
k
u
k
k
u
k
u
u
k
u
u
u
u
k
k
u
k
u
u
k
k
u
u
u
u
k
k
u
u
k
k
k
u
u
k
u
k
k
u
k
u
k
u
u
u
u
u
k
k
k
u
k
k
u
k
k
u
u
u
k
k
u
u
k
u
k
k
k
u
k
u
k
u
k
k
u
k
u
u
k
k
k
k
u
u
u
k
u
k
u
u
k
u
k
k
k
k
u
k
u
k
u
u
k
k
k
u
u
k
u
k
k
u
k
u
u
k
k
k
k
u
k
u
k
k
k
k
k
k
k
k
k
k
k
k
u
u
k
u
u
k
u
k
u
u
u
u
k
u
u
u
u
u
u
u
u
k
k
u
k
k
k
k
k
k
u
k
k
u
k
k
u
k
k
k
u
u
u
u
k
u
k
k
u
u
k
k
k
k
k
k
u
u
u
k
k
k
u
k
u
u
u
u
u
u
u
u
u
k
k
u
u
k
k
k
u
k
u
k
k
u
k
u
k
k
k
k
u
u
k
u
k
u
u
k
k
u
u
k
k
k
u
u
k
u
u
k
u
u
k
u
k
k
k
k
u
k
u
u
u
u
k
k
k
k
u
k
k
k
k
u
k
u
u
k
u
u
k
k
u
u
u
u
k
u
k
k
u
u
u
k
k
u
k
k
u
u
u
u
k
u
k
u
u
k
u
k
u
k
u
u
u
k
k
u
k
k
u
u
k
k
k
k
u
u
k
u
u
k
u
u
k
k
k
k
k
k
k
u
k
k
u
k
u
u
u
u
k
u
u
k
k
u
k
u
u
u
u
u
u
k
u
u
k
u
u
u
u
u
k
k
u
k
k
u
k
u
u
k
u
u
k
k
u
k
k
u
k
u
k
u
u
u
k
u
u
u
u
k
k
u
k
u
k
k
k
u
u
k
u
k
u
k
u
k
k
u
u
k
k
u
k
u
u
k
k
k
u
k
k
u
u
k
u
u
u
u
k
k
k
k
u
k
u
u
u
u
k
k
k
u
u
u
k
u
k
k
k
u
k
u
k
u
u
k
u
u
k
u
u
k
u
u
u
u
u
u
u
k
k
u
u
u
k
k
k
u
k
k
u
u
k
k
u
u
u
u
k
k
u
u
u
u
k
k
k
u
k
u
k
u
k
k
u
u
k
k
u
k
k
u
k
u
k
u
k
k
u
k
k
k
u
u
k
u
k
u
k
k
k
k
k
u
k
k
u
k
u
k
u
k
k
k
u
u
u
k
k
k
u
k
k
k
k
u
u
k
k
u
k
u
u
u
k
u
u
u
u
u
k
u
k
u
u
u
k
k
k
k
k
k
k
u
u
u
u
u
u
k
u
k
k
u
k
u
u
k
k
u
u
u
u
u
k
k
u
k
k
k
k
u
k
u
u
u
u
u
k
u
k
k
k
u
k
u
k
k
u
u
k
k
k
k
k
k
k
k
k
k
k
u
k
k
k
u
u
u
k
k
u
k
u
u
u
k
u
k
k
u
k
k
u
u
u
k
u
k
u
k
u
k
u
u
k
k
u
u
k
k
u
u
u
k
u
u
u
k
k
u
u
u
k
u
u
u
k
k
u
u
u
u
u
u
k
k
u
k
k
k
k
k
u
k
k
u
u
k
u
u
k
u
u
k
k
k
k
k
u
u
k
u
k
u
u
k
u
k
k
k
k
u
k
k
k
k
k
k
k
k
k
u
k
u
k
k
u
k
k
u
u
u
u
u
u
k
k
k
k
k
u
k
u
u
k
k
k
u
u
u
k
k
k
k
k
k
u
u
k
k
u
u
u
k
k
u
k
u
u
k
k
u
k
k
k
u
k
u
u
k
k
k
k
u
k
u
u
u
k
k
k
u
k
k
k
k
k
k
u
k
u
k
k
k
k
u
k
u
u
u
k
k
k
u
u
u
u
u
u
u
k
u
k
k
u
u
k
u
k
k
k
u
k
k
u
k
u
u
u
u
k
u
k
u
u
k
k
u
u
u
k
k
u
k
u
u
u
u
k
k
k
k
k
u
k
u
u
u
u
u
u
k
u
k
k
k
u
k
u
k
k
k
k
u
k
k
k
u
k
k
k
k
u
u
u
u
k
u
k
u
k
u
k
u
k
u
u
u
k
u
u
k
u
k
u
u
u
k
k
k
k
k
k
u
u
u
u
u
k
k
k
u
u
k
u
k
u
u
u
u
k
k
u
k
u
k
u
u
k
k
k
k
k
k
k
k
k
u
k
u
u
k
u
k
u
u
k
u
k
k
k
k
u
u
k
k
u
k
u
k
u
k
k
k
u
k
u
k
u
k
k
u
k
u
u
u
k
u
u
u
u
u
k
k
k
u
k
u
u
u
k
k
k
u
u
u
u
k
u
k
k
k
u
u
u
u
k
k
k
u
k
k
k
k
u
u
u
k
k
k
u
u
u
u
u
u
k
k
k
u
k
u
k
u
u
k
u
k
k
k
u
u
k
k
u
k
u
k
u
u
k
k
u
u
k
k
k
u
k
u
k
u
k
k
k
u
u
k
k
k
u
u
k
k
k
u
k
k
u
u
u
k
u
u
k
u
k
u
k
u
k
k
k
k
u
u
k
u
u
k
u
u
k
u
k
k
k
k
u
u
u
u
u
k
k
k
k
u
k
u
u
u
u
k
k
k
u
u
u
k
k
k
k
u
k
u
u
u
k
u
k
k
u
k
u
k
k
u
k
k
u
k
u
u
u
u
u
u
k
k
k
u
k
u
u
u
u
k
k
k
u
k
u
u
k
k
u
k
k
k
u
k
u
u
u
k
k
u
u
k
u
k
k
k
k
k
u
u
k
k
k
u
u
u
u
k
k
u
u
u
k
k
k
k
u
u
u
u
k
k
k
u
k
k
k
k
u
u
k
k
k
k
u
k
k
u
u
k
u
k
k
k
u
k
u
u
u
u
k
k
u
u
u
k
u
u
u
u
k
k
u
u
u
u
u
k
k
k
u
u
u
u
u
k
k
k
k
u
u
u
u
k
u
k
u
u
k
u
u
u
u
k
k
u
k
k
u
k
u
u
k
u
u
k
k
k
u
k
u
k
u
u
k
u
u
u
u
k
k
k
u
u
u
k
k
u
u
k
u
u
k
k
k
k
u
k
k
k
k
k
k
k
u
k
u
k
k
u
u
u
u
u
u
u
u
k
u
k
u
k
k
k
k
k
u
k
k
k
u
k
k
u
k
u
k
k
u
u
u
u
u
k
u
k
u
k
k
u
u
u
k
u
u
k
u
k
k
k
k
k
k
k
u
u
u
u
u
u
u
k
k
k
k
k
k
u
k
k
k
k
u
u
u
k
u
u
k
u
u
k
k
k
k
k
k
u
k
k
u
k
k
u
u
k
k
k
u
k
k
k
k
k
u
k
k
k
u
k
k
u
u
k
k
k
k
u
k
k
k
k
u
k
u
u
u
k
k
k
k
u
u
u
k
k
k
u
k
k
u
k
k
k
k
k
u
u
u
k
u
u
k
k
u
u
u
u
k
k
u
u
k
u
u
u
k
k
u
k
u
k
k
k
k
u
k
k
k
k
u
u
u
u
u
k
k
u
u
k
u
u
k
k
u
u
u
u
u
k
k
u
u
k
k
k
u
u
k
u
u
u
k
k
k
k
u
u
k
k
k
u
u
u
u
u
u
u
k
u
k
k
k
u
u
u
k
k
u
k
u
u
k
k
u
u
u
u
u
k
k
k
u
u
u
k
k
k
k
u
u
u
k
u
u
k
u
k
k
k
k
k
k
k
u
k
k
u
u
k
u
k
k
k
k
u
u
u
k
u
k
u
u
k
u
u
u
u
k
k
k
u
k
u
k
u
u
k
k
k
u
k
u
k
k
k
u
k
k
u
u
k
k
k
u
u
k
u
k
k
u
u
k
u
k
u
u
k
k
k
u
u
u
u
k
k
k
u
k
k
k
u
u
k
u
u
u
u
u
u
u
k
u
k
u
k
k
k
k
u
k
k
u
k
k
k
k
u
k
k
k
k
k
k
k
u
k
k
u
u
u
k
k
k
k
k
k
u
k
k
k
u
k
k
u
k
k
u
u
u
u
u
k
k
u
k
u
k
u
u
k
k
k
u
u
u
k
k
u
k
k
u
k
u
u
k
k
u
k
k
k
u
k
u
u
u
k
u
u
k
u
k
u
k
u
u
u
k
k
k
k
u
u
k
u
k
u
k
u
u
u
k
u
u
u
u
u
u
k
k
u
k
k
k
u
k
k
k
u
k
u
k
u
u
k
u
u
k
u
k
k
u
u
u
k
k
u
u
k
u
u
k
u
u
k
u
u
k
k
k
k
u
u
k
k
k
k
u
k
k
k
u
u
k
u
k
k
u
u
u
k
k
k
u
k
k
k
u
k
u
k
k
u
u
k
u
u
u
k
u
u
u
u
u
u
u
u
u
u
k
u
k
u
k
k
k
u
k
u
u
k
u
u
u
k
k
k
k
k
k
u
u
k
u
u
k
u
u
k
k
u
u
k
k
u
k
u
k
u
u
k
u
u
u
u
k
k
k
k
u
u
u
u
u
u
k
u
u
k
u
u
u
u
u
u
k
u
k
u
u
u
u
u
u
k
k
k
k
u
k
u
k
u
u
u
k
k
k
k
k
u
u
u
k
k
k
u
u
k
u
u
u
k
k
k
u
u
u
k
k
k
u
u
u
k
u
u
u
k
u
u
k
k
u
u
u
k
u
u
k
u
k
k
k
u
k
k
u
k
u
k
k
k
k
u
k
u
k
u
k
u
u
u
u
k
k
k
k
k
u
k
u
u
u
u
k
k
u
k
u
k
u
k
k
k
k
u
k
u
k
k
k
k
k
k
u
u
u
k
u
u
u
u
u
u
k
k
k
k
k
u
k
u
u
k
u
k
k
u
k
k
k
k
u
k
u
k
u
u
u
u
k
k
u
u
k
k
k
u
u
u
u
u
u
u
u
k
k
u
k
u
u
k
k
u
k
u
k
k
u
u
k
k
u
k
k
k
u
k
k
u
u
u
k
k
k
k
u
u
k
k
k
u
u
k
u
u
k
k
u
u
u
k
k
k
k
k
k
k
u
k
u
k
u
u
k
k
k
u
k
u
k
u
u
k
u
k
u
k
k
u
u
k
k
k
k
k
k
u
k
k
k
k
u
k
k
k
k
u
u
u
k
u
u
k
k
k
u
k
k
u
k
k
k
k
u
u
k
u
u
k
k
u
k
u
u
k
u
u
u
k
u
k
u
u
u
k
u
k
k
u
u
u
u
k
k
u
u
u
k
k
u
k
k
u
u
u
k
u
k
u
k
u
u
k
u
k
u
u
k
u
k
k
k
k
u
k
u
u
u
u
u
k
k
k
u
u
k
k
k
u
k
u
k
k
u
u
u
k
k
k
k
k
k
u
k
u
u
u
k
u
k
k
u
u
u
u
k
k
u
u
u
k
u
k
u
u
u
u
k
k
u
u
k
k
u
u
u
u
u
k
u
u
k
u
u
u
k
k
k
k
u
k
u
k
u
k
u
u
k
u
u
k
k
u
k
k
k
k
u
k
k
u
k
k
k
u
u
k
k
k
k
u
k
k
k
k
k
u
u
u
u
k
k
k
k
u
u
u
u
u
u
k
k
k
k
k
k
u
u
k
k
k
k
u
u
u
k
u
k
k
k
u
k
k
u
u
k
k
k
u
u
u
k
u
u
k
k
k
k
u
k
u
k
k
u
k
k
k
u
u
u
u
u
k
u
k
u
u
k
k
u
k
k
k
u
k
k
k
k
u
k
u
u
u
k
u
u
k
k
k
k
u
k
u
u
k
k
u
k
k
k
u
u
u
u
u
u
u
u
u
k
k
k
u
u
k
u
u
k
k
k
u
u
k
k
u
k
u
k
k
k
k
u
u
k
u
k
k
u
k
u
k
u
k
k
k
u
u
u
k
u
u
u
u
u
k
u
u
u
k
u
k
u
u
u
u
k
k
k
k
k
u
k
u
k
u
u
k
u
k
k
k
u
u
u
u
u
u
u
k
k
u
k
k
u
k
k
u
k
u
u
u
k
u
u
u
k
k
k
u
u
u
u
k
u
u
u
u
u
u
u
u
u
k
k
u
k
u
k
k
k
u
u
k
k
u
k
u
k
u
u
u
k
u
k
k
u
u
k
k
k
k
u
u
u
k
k
u
k
k
k
k
k
u
u
k
k
u
u
k
u
u
u
u
k
k
u
k
k
u
k
u
k
k
u
k
k
u
u
u
k
u
k
k
u
k
u
k
k
k
k
k
u
k
k
u
u
u
k
u
u
k
k
u
k
u
u
k
u
u
u
k
u
k
k
u
k
k
k
k
u
k
u
k
k
u
u
u
k
u
u
k
k
u
k
k
u
k
u
k
k
k
u
u
k
u
k
u
k
u
k
k
u
u
k
u
u
u
u
u
k
k
k
k
u
u
k
u
k
k
k
k
k
k
k
u
k
u
k
k
k
u
u
k
u
u
u
k
k
k
u
k
u
u
k
k
k
u
u
k
k
k
k
k
u
u
u
k
k
u
k
u
u
u
u
k
u
k
u
u
k
u
k
u
k
k
u
k
k
k
k
u
u
k
k
u
u
k
k
k
k
k
k
k
k
u
k
u
u
k
k
k
u
k
k
u
k
u
u
u
k
k
u
u
k
k
u
u
u
k
u
u
k
u
k
k
u
k
u
k
k
u
u
k
u
k
k
k
u
k
u
u
u
u
u
k
k
k
u
u
u
u
k
u
k
k
u
u
k
k
u
k
k
u
u
k
u
u
k
u
u
k
u
k
k
k
u
k
k
u
k
u
k
u
u
k
k
k
u
k
u
k
u
k
u
k
k
k
k
k
k
k
u
u
u
k
k
k
u
u
u
k
u
k
k
k
k
u
k
k
u
k
u
k
k
k
k
k
u
u
u
u
u
k
k
u
u
k
u
k
k
u
k
k
k
k
u
u
k
u
k
k
u
u
u
k
k
u
u
u
k
k
k
u
k
k
k
u
k
u
k
u
u
u
k
k
k
k
u
k
k
u
k
k
k
u
u
k
u
k
u
k
u
u
u
k
k
k
k
k
u
u
k
k
u
k
u
u
k
u
k
k
u
u
u
u
u
k
k
k
k
u
u
u
u
u
u
k
u
u
u
k
u
u
u
k
u
k
u
u
k
k
k
u
k
u
u
u
k
u
k
u
k
k
u
k
u
k
k
u
k
k
u
k
k
u
k
u
u
k
k
u
u
k
u
k
u
u
k
u
k
k
u
u
k
u
u
k
u
k
k
u
k
u
k
k
u
u
u
u
u
u
k
k
k
u
u
u
k
k
u
u
u
u
k
k
k
k
k
u
u
u
k
u
u
k
k
u
u
u
u
k
k
k
u
u
k
k
k
u
k
k
k
k
k
u
u
k
u
u
k
u
k
u
u
k
u
u
k
k
u
u
u
k
u
k
u
u
k
k
u
k
k
u
k
u
u
k
k
u
u
k
k
k
k
u
k
k
k
k
u
u
k
k
u
u
u
u
k
u
u
k
u
k
k
u
k
u
k
u
u
u
u
k
u
u
k
k
k
u
u
k
u
k
u
u
u
u
k
k
u
u
k
u
k
k
k
u
k
k
k
k
u
u
k
k
u
u
k
u
k
u
u
u
u
k
k
u
k
u
u
k
k
k
u
k
k
k
u
u
k
k
k
u
k
k
k
k
k
u
u
u
k
k
k
u
k
k
k
k
k
u
k
u
k
k
u
u
k
u
u
k
k
k
u
k
u
u
u
u
u
u
u
u
u
u
k
u
u
u
u
k
u
k
u
u
k
k
u
u
u
u
k
u
k
u
k
k
k
u
k
k
u
u
u
u
u
k
k
u
u
u
k
u
u
u
u
u
k
u
u
k
u
u
k
k
k
u
k
k
u
k
u
k
u
k
k
u
u
u
k
k
u
k
u
k
u
u
k
k
k
k
k
u
u
u
u
k
u
u
u
u
u
u
k
k
k
u
k
u
u
k
u
u
k
k
k
u
u
u
u
k
u
u
k
k
k
u
u
u
u
u
k
u
k
k
k
u
u
u
u
k
u
k
u
u
u
k
k
k
u
u
u
k
u
k
k
k
k
u
k
k
u
u
u
k
k
u
u
k
u
k
k
k
u
u
k
u
u
u
u
u
k
u
k
u
k
u
u
u
k
k
u
k
u
k
k
k
u
u
k
u
u
k
k
k
u
u
u
k
u
u
u
k
k
k
u
k
u
k
k
u
u
u
u
u
u
k
k
u
u
k
u
k
u
k
u
u
u
k
u
k
u
u
u
k
k
u
k
k
u
u
u
u
u
u
k
u
k
k
u
k
k
k
k
k
k
u
k
k
k
k
u
u
k
u
u
u
k
k
k
k
u
u
u
u
u
k
k
k
k
u
k
k
u
k
u
u
u
k
u
k
u
k
k
u
k
u
u
k
k
k
u
u
u
k
k
k
k
k
k
k
u
u
k
u
u
k
u
k
u
k
k
u
u
u
k
k
u
u
k
k
u
u
k
u
u
u
k
k
u
u
k
u
k
u
k
u
u
k
u
k
k
u
u
k
u
u
k
u
u
k
u
u
k
u
u
k
k
u
u
u
u
k
k
u
k
k
k
k
k
u
k
u
u
u
k
k
k
u
k
k
k
u
u
k
u
k
k
u
u
u
k
u
k
u
k
u
k
u
k
u
k
u
k
u
u
u
k
k
u
k
u
k
u
k
k
u
k
u
k
k
k
k
k
k
k
k
k
u
u
u
u
k
k
u
k
u
k
k
u
u
u
u
k
u
u
k
k
u
k
k
u
k
k
k
k
u
u
k
u
u
k
u
u
u
k
u
k
k
k
k
u
u
k
k
k
u
k
u
u
k
u
k
k
u
k
u
k
u
k
k
k
u
u
k
k
k
u
u
k
k
u
u
u
k
k
u
k
k
k
k
u
u
u
k
k
k
u
k
k
u
u
k
k
u
u
k
k
k
u
k
u
u
u
u
u
k
u
u
u
k
k
u
k
u
u
k
k
u
u
k
k
u
u
k
k
k
u
u
u
k
k
k
u
k
u
k
u
u
k
u
u
u
k
u
u
u
k
u
u
u
u
k
u
u
k
u
k
u
k
k
u
u
u
u
k
k
u
u
k
u
k
k
u
u
k
k
k
k
k
k
k
u
k
u
k
k
u
u
k
u
k
k
k
k
k
u
k
u
k
k
u
k
k
k
u
k
u
k
k
u
k
k
k
u
k
u
k
u
u
u
u
u
u
u
k
k
u
u
k
u
k
u
u
k
k
u
u
k
k
k
u
u
k
u
u
u
k
k
u
k
k
u
k
k
u
u
u
u
k
u
k
u
k
u
u
k
k
k
u
k
u
k
u
u
u
u
u
k
u
k
k
k
k
u
k
k
k
u
k
k
u
k
k
k
k
u
k
u
u
u
u
k
k
u
k
u
k
k
k
k
k
u
k
k
u
k
u
u
u
k
u
u
k
k
k
k
k
u
u
k
k
u
k
u
u
u
u
k
u
u
u
k
k
u
u
k
k
u
u
u
k
k
k
k
k
u
k
k
u
u
k
k
k
u
k
k
u
u
u
k
u
k
u
k
u
k
u
k
k
k
k
u
k
k
u
u
u
k
u
k
k
k
u
k
u
k
k
k
k
u
k
k
k
k
k
k
k
k
k
u
k
u
u
u
u
k
k
k
k
u
u
k
k
k
k
k
k
u
k
k
u
u
k
k
k
u
k
k
k
u
u
u
k
u
u
k
k
u
u
k
u
k
k
u
u
k
k
u
u
u
u
k
k
u
u
k
k
u
k
u
k
k
k
k
k
k
u
u
u
u
u
k
u
k
u
k
k
k
u
k
k
u
u
u
u
u
u
u
u
k
u
u
u
k
k
k
u
k
k
k
u
k
k
k
u
u
u
k
k
k
u
k
k
u
k
k
k
u
k
u
u
k
k
u
u
k
k
u
k
u
k
k
u
k
u
u
k
u
k
u
k
u
k
k
u
u
k
k
k
u
k
k
k
u
k
k
k
u
k
k
k
u
k
u
k
k
k
u
k
u
k
k
u
k
k
k
k
k
u
k
k
u
u
u
k
u
k
u
u
u
u
k
k
k
u
u
u
k
u
u
u
k
u
u
k
u
k
k
u
u
k
k
u
k
k
k
k
k
k
k
u
k
k
k
k
u
k
k
k
k
k
u
u
u
u
u
u
k
u
u
k
u
k
u
k
k
k
k
k
k
k
u
k
u
k
k
u
u
k
u
k
u
k
k
k
k
k
k
u
k
u
k
k
k
k
k
u
u
k
k
u
k
k
u
u
k
u
k
u
u
u
k
k
u
u
u
k
u
u
k
k
k
k
k
k
k
k
u
u
u
u
k
k
u
k
k
u
u
k
k
u
k
k
k
k
u
k
k
u
u
u
k
k
u
k
u
k
k
k
k
k
u
u
k
k
k
k
u
k
u
k
u
k
u
u
k
u
k
k
k
k
u
k
u
u
k
k
u
k
k
u
k
k
k
u
k
u
u
k
k
u
u
k
u
k
u
u
k
k
k
k
k
u
k
u
k
k
k
u
u
k
k
u
u
k
u
u
k
u
u
u
u
u
u
u
u
u
u
k
k
u
u
u
u
u
k
k
k
k
k
u
k
k
u
u
k
u
k
u
k
u
k
k
k
k
k
u
u
k
u
u
u
k
u
u
u
k
k
u
u
k
k
u
k
k
k
u
k
k
u
k
u
u
k
k
u
k
k
u
u
k
u
u
u
k
k
u
k
u
k
u
k
u
k
k
u
u
k
u
u
u
k
u
k
u
k
u
k
k
k
k
u
k
u
u
u
k
u
u
k
u
u
u
k
k
k
k
k
u
k
u
k
u
k
u
u
u
u
u
u
k
k
u
u
k
u
u
k
k
u
u
u
k
k
u
k
k
u
k
u
u
u
k
u
u
k
k
u
u
k
u
k
u
k
u
k
u
u
u
u
u
k
u
u
k
u
k
k
k
k
k
u
k
k
k
k
k
u
u
u
k
u
u
k
k
u
u
k
u
u
u
k
k
k
u
k
u
k
u
k
k
k
u
u
k
k
k
k
u
u
u
k
u
u
u
k
u
k
u
u
u
u
u
u
k
u
u
k
u
k
u
u
u
k
u
k
k
k
k
u
k
k
u
k
k
u
k
u
u
k
k
u
u
k
u
k
k
u
u
k
k
k
k
k
u
k
u
u
k
u
k
k
u
u
k
u
u
u
u
u
u
k
k
u
u
u
u
u
k
u
u
k
u
k
k
u
k
u
u
u
u
k
k
u
u
k
k
k
u
k
u
u
k
u
u
k
k
u
u
k
u
u
u
u
u
u
u
u
u
k
k
u
k
u
k
k
u
k
k
u
u
u
k
k
u
k
k
k
k
k
u
u
u
k
k
u
u
k
k
k
k
k
k
k
u
u
u
u
k
u
k
u
u
k
u
k
k
k
k
k
k
u
u
u
u
k
k
k
u
k
k
k
k
u
u
u
k
u
u
u
k
u
u
u
k
u
k
k
u
k
u
u
u
u
u
k
k
k
k
k
k
u
u
u
k
k
k
u
u
u
u
k
u
u
u
k
u
k
u
u
u
u
k
u
k
k
u
u
u
u
u
k
u
u
k
k
k
k
u
k
u
k
k
u
k
k
k
k
u
u
k
k
u
u
u
u
k
u
u
u
k
k
u
k
u
u
u
k
k
u
u
k
u
k
k
k
k
u
u
k
u
u
k
u
k
u
u
k
k
u
u
k
u
k
k
k
k
u
u
k
u
k
k
k
k
u
u
k
k
k
k
k
u
k
k
u
k
k
u
u
u
k
k
u
u
u
k
u
k
u
k
u
k
u
u
k
u
u
u
u
k
u
k
u
k
k
u
k
k
u
k
k
u
k
u
u
k
k
u
u
u
k
k
u
u
u
k
k
u
k
k
k
k
u
k
k
u
u
u
k
k
u
k
k
k
u
k
u
k
k
u
k
u
u
k
u
u
u
u
u
u
u
k
u
k
k
u
u
u
k
k
u
k
k
u
k
k
u
u
u
k
k
u
u
u
k
u
k
k
u
k
u
u
u
u
u
k
u
k
k
k
k
u
u
u
u
u
k
u
u
u
k
k
k
u
u
u
k
k
k
k
k
u
u
k
k
u
u
u
k
u
u
u
u
k
u
u
k
k
u
u
u
k
k
u
u
k
k
u
u
k
k
u
k
u
u
k
u
u
k
k
u
u
u
k
k
k
k
u
k
k
u
k
k
k
k
u
k
k
k
k
u
u
k
u
k
u
u
k
k
k
k
u
k
k
u
u
k
k
k
k
u
k
u
u
u
u
k
u
u
k
k
u
k
k
k
u
k
u
u
k
k
k
k
u
k
k
u
u
k
u
k
k
u
u
k
u
u
k
u
u
k
k
u
k
u
u
u
u
k
k
k
u
u
u
k
k
k
k
u
k
u
u
k
u
u
u
u
u
k
u
u
k
u
u
u
u
u
k
u
u
k
u
k
u
u
k
u
k
k
u
k
k
u
k
u
k
k
k
u
k
k
u
u
u
u
k
u
k
u
k
u
k
k
u
u
u
k
k
k
u
k
k
k
u
k
u
u
k
u
u
k
u
k
k
k
u
k
u
u
u
k
k
k
k
u
u
u
k
k
k
u
k
u
u
u
k
k
u
u
k
u
u
u
u
u
k
u
k
u
k
k
u
k
u
u
u
u
u
k
k
u
u
u
k
k
u
u
k
k
u
k
k
u
k
u
k
u
u
k
k
k
u
k
u
u
k
k
k
u
u
u
u
u
k
k
k
k
u
k
u
u
k
k
k
k
u
k
u
u
k
k
k
u
k
u
k
u
k
k
u
u
k
u
u
k
u
k
k
k
k
k
k
u
u
u
k
u
k
u
k
k
k
u
u
k
u
u
u
k
u
k
u
k
u
k
k
k
k
u
k
k
k
k
u
k
k
u
k
u
u
k
u
u
u
u
k
k
u
k
u
u
u
u
k
k
k
k
u
k
k
k
k
k
k
u
u
u
u
u
u
k
u
k
u
u
k
u
u
k
u
k
k
u
k
k
k
u
u
k
k
k
u
u
u
k
u
u
k
k
k
k
u
k
u
k
u
k
u
u
k
k
u
k
u
u
k
k
k
k
k
u
u
u
k
u
k
k
u
u
k
k
k
k
u
u
k
u
u
u
u
k
u
u
u
k
k
u
u
u
u
u
u
k
u
u
u
k
k
u
u
k
u
u
u
k
k
u
u
u
u
k
k
k
k
k
u
k
k
k
u
u
k
k
k
u
u
k
k
k
u
k
k
k
u
u
k
k
u
u
k
k
u
k
u
k
u
u
k
k
u
u
u
u
k
k
u
k
u
u
u
u
k
u
k
u
k
k
u
u
k
k
u
u
k
k
k
k
k
u
k
k
k
k
u
u
k
k
u
k
k
u
u
k
k
u
u
u
u
u
u
u
u
u
k
k
u
k
u
u
k
u
k
u
k
u
u
k
k
u
u
u
k
u
k
k
k
u
k
u
u
k
k
k
k
u
u
u
k
u
u
k
u
k
k
u
k
k
u
k
k
u
k
u
u
u
u
u
k
u
k
k
u
u
k
u
k
u
k
k
k
u
k
u
u
k
u
k
k
k
k
u
k
k
u
u
u
k
k
k
k
k
u
u
u
u
u
u
k
u
u
k
u
k
k
k
u
k
u
u
u
u
u
k
k
k
u
u
u
k
k
u
k
u
u
k
k
u
k
k
u
u
k
k
k
k
k
k
k
u
k
k
k
u
u
u
k
u
k
u
k
u
u
k
k
k
u
u
u
u
u
u
k
k
k
k
k
k
u
u
u
u
k
u
u
u
u
u
k
u
k
u
k
u
u
u
k
k
u
u
k
u
u
u
u
k
u
k
u
k
u
u
k
u
u
k
k
k
u
u
u
k
k
u
k
k
k
k
k
u
u
k
u
k
u
k
k
u
u
k
k
u
k
k
k
u
k
u
u
u
k
u
k
k
u
k
k
k
k
k
u
k
u
k
u
u
k
u
u
u
k
u
k
k
u
u
k
u
k
u
u
u
u
u
k
u
k
k
k
k
u
u
k
k
k
k
k
u
k
k
k
k
k
k
u
k
k
k
u
u
k
k
u
u
u
k
k
k
k
u
u
k
k
k
k
k
u
u
k
k
k
u
k
u
k
k
k
k
u
u
u
u
u
u
k
k
u
k
k
u
k
u
u
u
k
u
k
u
u
u
k
k
u
k
u
k
u
u
k
k
u
u
u
u
u
u
u
u
u
k
u
k
k
k
k
u
u
k
u
u
k
k
u
u
k
k
u
u
k
u
u
k
k
k
u
k
k
k
u
k
u
u
u
k
k
k
k
u
u
u
u
k
u
u
k
k
u
k
k
u
u
k
u
k
k
u
k
u
u
k
k
u
u
k
k
k
k
u
k
k
k
u
k
u
u
u
k
k
k
u
u
k
u
k
u
k
k
k
u
k
u
k
u
k
k
k
k
k
k
k
u
u
k
u
k
k
k
k
u
k
u
k
u
k
k
u
k
u
u
u
k
k
u
k
k
u
u
u
k
u
k
u
k
u
u
u
k
u
u
u
u
u
u
u
u
u
k
u
u
u
u
k
k
k
u
k
u
u
k
u
k
u
u
u
u
u
k
k
u
k
k
u
k
u
k
k
k
k
u
k
u
u
k
k
u
k
u
u
u
u
u
u
k
k
k
u
k
u
k
u
u
k
k
k
k
u
k
k
u
u
u
u
k
k
u
u
k
u
u
u
u
u
u
u
u
u
u
u
u
k
u
k
u
u
k
k
k
k
u
u
u
u
u
k
k
k
k
k
k
u
k
u
k
u
k
u
u
u
k
u
k
k
k
k
k
k
u
u
u
k
u
u
u
u
k
u
u
u
u
u
k
k
k
k
u
u
u
u
u
u
k
k
k
k
k
u
k
u
k
k
u
u
u
k
u
u
u
u
u
k
k
u
k
k
u
u
k
k
u
u
u
k
u
k
k
k
k
k
u
k
u
k
k
u
u
k
k
u
u
k
u
u
u
k
u
u
u
u
u
k
u
u
u
k
k
u
k
k
u
u
u
u
u
u
u
k
u
k
k
k
k
k
k
u
u
u
k
u
u
u
k
u
u
u
u
k
u
k
u
k
k
k
u
k
u
u
k
k
u
u
u
u
u
u
u
u
k
k
u
k
k
u
u
k
k
k
u
u
u
u
k
u
u
k
k
u
k
k
u
k
k
k
k
k
u
k
k
k
k
k
k
k
u
u
k
k
k
k
u
k
u
u
k
u
u
u
k
u
k
u
u
k
u
u
u
k
u
k
u
u
u
k
u
k
u
k
u
k
k
u
k
k
u
u
k
u
k
u
u
k
u
k
u
k
k
u
k
k
k
u
u
k
u
k
u
u
k
k
k
k
u
k
u
u
u
u
u
u
u
u
u
k
u
u
u
u
u
k
k
u
k
u
k
u
k
u
u
k
u
k
k
u
u
u
u
k
u
u
k
k
u
u
u
u
u
u
k
u
u
u
u
u
u
u
k
k
u
u
u
u
u
u
k
k
u
k
u
u
u
k
k
u
u
u
k
u
k
u
k
u
k
k
u
u
u
k
u
k
u
u
u
u
u
u
u
k
k
k
u
k
u
u
k
u
k
k
u
u
u
u
k
u
k
k
k
u
k
u
k
u
k
k
u
k
k
k
u
k
k
u
k
k
u
k
u
k
u
k
k
u
k
u
u
k
u
u
u
u
k
k
k
u
u
u
u
u
k
u
u
u
k
u
u
k
k
k
k
u
u
u
k
u
k
u
u
k
k
k
u
k
k
k
u
u
k
k
k
u
k
k
k
u
u
k
u
u
u
k
u
u
u
k
k
u
u
u
k
u
u
u
u
k
k
u
k
u
k
u
k
u
k
u
k
k
k
k
u
u
k
k
u
k
k
u
u
u
k
u
k
u
u
u
k
u
u
u
u
k
u
u
k
u
u
u
k
k
k
k
u
u
u
u
u
k
k
u
u
u
u
k
k
u
k
k
u
u
k
k
u
u
k
k
u
u
u
u
u
u
k
k
u
u
u
u
u
k
u
k
u
u
u
u
k
u
u
u
k
u
k
u
k
u
u
u
u
u
u
k
u
k
k
u
u
k
k
u
u
u
k
k
u
k
u
k
u
k
k
u
u
k
k
k
k
k
u
u
k
k
k
u
u
k
k
u
u
u
u
k
u
u
u
k
u
u
u
k
u
k
k
k
u
k
u
u
k
u
u
k
u
k
k
u
u
k
k
u
u
u
k
u
k
u
u
k
u
k
k
u
k
k
k
k
k
u
k
u
u
k
u
k
k
k
k
k
u
k
u
u
k
u
u
k
k
k
k
k
u
k
k
k
k
k
k
u
k
k
k
k
k
u
u
u
u
k
u
k
u
k
u
k
u
u
k
k
k
u
u
u
u
u
u
k
u
k
u
k
k
k
k
k
k
k
k
u
k
u
k
k
k
k
k
u
k
k
u
u
k
u
k
u
k
k
u
u
u
u
k
u
k
k
u
k
u
k
u
u
u
k
u
k
u
u
k
u
u
u
u
u
u
k
u
k
u
k
u
k
k
k
k
k
k
k
k
u
k
u
k
k
u
u
u
k
k
k
u
k
u
u
k
u
k
u
u
k
u
u
u
k
u
k
k
k
k
k
u
u
u
u
u
k
k
k
k
k
u
u
u
k
u
k
k
u
u
k
u
k
u
u
k
u
k
k
k
u
k
k
u
u
u
u
k
u
u
u
k
k
k
u
u
k
u
u
u
u
k
u
u
u
k
u
k
k
u
k
u
u
u
u
k
k
k
k
u
k
k
k
u
u
k
k
u
u
u
k
k
u
k
u
u
u
k
k
u
u
u
k
k
k
k
k
k
u
k
k
u
u
u
k
u
k
u
k
u
u
k
k
k
k
k
u
k
u
u
k
u
u
u
k
u
k
u
k
u
k
u
k
u
k
u
k
u
u
k
k
k
k
k
u
k
k
u
k
k
k
k
u
k
k
u
k
u
k
u
u
u
u
u
u
k
u
u
u
u
u
k
k
u
k
u
u
k
k
k
k
k
u
k
u
k
u
k
u
u
u
k
u
u
k
k
u
u
u
k
u
u
u
u
k
u
k
k
u
u
u
k
u
u
k
u
u
k
k
u
k
k
k
k
k
u
k
u
u
k
k
u
u
k
u
u
k
k
u
k
u
k
u
k
k
k
k
k
u
u
u
u
k
k
u
u
u
k
u
u
u
u
u
u
u
k
u
k
k
k
k
k
u
k
k
u
k
u
u
u
k
k
u
u
k
k
u
u
k
u
u
u
u
u
u
u
k
k
k
k
u
k
k
u
k
u
u
u
u
u
u
k
k
u
u
k
k
k
k
k
u
k
k
k
u
u
u
k
k
u
u
k
u
u
k
u
k
k
u
k
k
u
k
u
k
u
k
u
u
k
k
k
u
k
u
k
u
k
k
u
u
k
u
u
k
k
k
u
u
k
u
k
u
k
k
u
u
u
u
u
u
k
k
u
u
u
u
u
u
u
k
u
u
u
k
u
k
u
u
k
u
k
k
u
u
k
u
u
u
u
k
u
u
k
u
u
k
k
u
k
k
k
u
u
u
u
k
u
u
u
k
k
u
u
u
u
u
u
k
u
k
k
k
u
k
u
k
k
u
u
u
k
u
k
u
k
u
u
k
u
k
k
k
u
k
k
k
k
k
u
k
k
u
u
u
u
u
u
k
k
k
u
u
k
u
k
k
k
u
u
k
k
k
u
k
u
k
u
u
k
u
u
u
u
u
u
u
u
u
k
k
k
u
k
u
k
u
u
k
u
k
k
u
k
u
k
u
k
k
u
k
u
u
u
k
u
u
u
u
u
u
k
u
u
u
u
k
u
u
u
u
u
k
u
u
u
k
k
u
k
k
u
u
k
u
u
u
k
u
k
u
u
k
k
u
u
u
u
k
k
u
k
k
u
u
u
k
k
u
u
k
u
u
k
u
k
u
k
u
u
k
k
u
k
u
k
u
u
u
u
u
u
u
u
k
k
u
k
u
u
u
u
k
k
u
k
u
u
k
u
u
k
u
u
u
u
u
u
k
k
k
u
u
k
u
k
u
k
u
k
u
k
k
k
u
k
u
u
u
k
u
k
u
k
u
u
u
u
k
k
k
k
u
k
k
u
k
k
k
u
u
k
u
u
u
u
u
u
k
u
u
u
u
u
u
k
k
u
u
k
k
u
u
k
k
k
k
k
u
u
k
k
k
k
u
u
k
u
k
k
k
k
u
k
u
k
k
k
k
u
k
k
u
u
u
u
u
k
k
k
u
k
u
k
u
k
k
u
u
u
k
k
u
k
k
k
k
u
k
k
k
k
k
u
u
u
k
k
u
u
k
k
u
k
u
k
u
k
k
k
u
k
k
k
k
u
u
k
u
k
k
k
u
u
k
u
k
k
k
u
k
k
k
k
k
k
u
u
u
k
u
u
u
k
k
u
u
k
u
k
u
u
u
u
k
u
k
k
k
u
k
u
k
u
k
u
k
k
u
k
u
u
k
u
k
u
k
u
k
k
u
u
k
k
u
u
u
k
u
u
k
k
u
u
k
u
k
k
k
k
k
k
u
k
k
u
k
k
u
k
u
k
k
u
u
u
u
u
u
u
k
u
k
k
k
k
k
u
u
u
k
k
k
k
u
u
k
k
k
u
k
k
u
k
u
u
u
u
u
k
k
u
k
u
k
u
k
k
k
u
k
k
k
u
k
u
k
u
k
k
u
u
k
u
k
u
u
u
k
k
u
k
u
k
k
k
k
u
u
u
u
u
k
u
k
k
u
u
k
u
k
u
k
u
k
k
k
u
k
k
u
u
k
u
u
u
u
u
k
k
k
u
u
u
u
u
u
k
k
k
k
u
k
k
u
k
u
u
k
k
k
u
u
k
u
u
u
u
k
k
k
u
u
k
u
k
u
k
u
k
k
k
k
k
u
k
u
u
k
u
u
k
k
u
u
u
k
u
u
u
k
u
u
u
u
u
k
k
u
u
u
k
k
k
u
u
u
u
k
k
k
k
u
k
u
u
k
k
u
u
u
u
k
k
k
k
k
k
u
u
k
u
k
u
k
k
k
u
u
u
u
u
u
u
k
u
u
k
k
u
u
u
u
u
k
k
u
u
u
u
u
k
k
u
k
k
k
u
u
u
u
k
u
u
k
k
u
u
u
k
k
k
k
u
k
k
u
k
k
u
u
u
k
k
k
k
u
k
u
u
k
k
k
k
k
u
k
u
u
k
u
k
u
u
u
u
u
k
u
k
u
u
k
k
u
k
k
k
u
u
k
k
u
k
u
k
k
k
k
k
u
u
u
k
k
u
k
k
k
k
u
u
u
k
k
k
u
u
k
k
u
u
k
k
u
k
u
k
u
k
k
u
u
k
k
u
k
u
k
k
u
u
k
k
u
k
k
k
u
u
u
k
u
u
k
u
k
k
u
k
k
u
k
u
u
k
k
u
k
k
u
k
k
u
k
k
k
u
k
u
k
u
u
u
u
u
k
u
k
k
k
u
u
k
k
k
u
u
k
u
k
u
k
u
k
u
k
u
k
u
u
k
u
u
u
u
k
u
k
k
u
u
u
u
k
k
u
u
k
k
k
k
k
u
u
k
u
u
u
k
u
k
k
u
u
u
k
u
u
u
u
u
u
k
u
u
u
k
u
u
k
k
u
u
u
u
u
k
u
u
u
k
u
k
k
u
u
k
u
k
u
u
k
k
u
k
k
k
k
u
k
u
k
u
u
k
u
u
u
k
u
k
u
k
k
u
k
u
k
u
k
u
u
k
u
k
u
u
k
k
u
u
k
u
u
k
u
u
u
u
u
u
k
k
u
u
k
k
u
k
u
u
u
u
k
k
u
u
u
k
k
u
u
u
u
k
u
u
u
k
k
u
k
u
u
k
u
k
k
k
u
u
k
k
u
k
k
k
u
k
k
u
k
u
u
u
u
u
u
k
u
k
u
u
u
k
k
u
u
u
u
k
u
k
u
k
u
k
u
k
u
k
k
u
u
k
u
k
k
k
k
k
u
u
k
u
k
k
u
k
k
k
k
u
u
k
u
k
k
k
u
u
k
u
k
u
k
u
u
k
k
k
u
k
k
u
k
k
u
k
k
k
u
k
u
u
u
u
k
k
u
u
u
k
u
u
k
k
u
u
u
k
u
u
u
u
u
k
u
k
u
u
u
u
u
k
u
k
u
u
u
u
u
u
k
u
k
u
k
u
u
k
k
u
u
u
k
k
u
u
u
u
k
u
k
k
k
u
u
k
u
u
k
u
k
k
u
u
k
u
u
k
u
u
k
u
u
k
u
k
u
k
u
k
u
u
u
u
u
u
k
u
k
u
k
k
u
k
u
k
u
u
u
u
u
u
k
u
k
u
k
u
k
k
u
k
k
k
k
u
u
u
k
k
k
u
k
u
u
k
u
k
k
u
u
k
k
k
u
u
u
k
k
u
u
k
k
k
u
u
k
k
k
k
u
u
u
k
k
u
u
k
k
u
k
u
u
k
k
u
k
k
u
u
k
k
u
k
k
u
k
k
u
u
u
u
k
u
k
u
u
u
u
k
k
u
k
k
k
u
u
u
u
u
k
k
u
u
u
k
k
u
k
u
u
k
u
k
u
u
k
u
u
k
k
k
k
k
u
k
k
k
u
k
k
u
u
k
u
k
k
k
u
u
u
k
k
u
k
u
u
k
u
u
u
k
k
u
u
k
k
u
k
k
k
u
u
u
u
k
k
u
k
k
u
u
u
u
u
u
u
k
k
k
u
k
k
u
k
k
u
k
k
k
u
u
k
u
k
k
u
u
k
k
k
k
k
k
u
k
k
u
u
u
k
k
k
u
k
u
u
u
u
u
u
u
k
u
u
k
u
u
k
k
k
k
k
u
u
u
k
u
u
u
u
u
u
u
u
k
u
u
u
k
k
k
k
k
u
k
u
k
k
u
k
u
k
k
u
u
u
u
u
k
k
k
u
k
k
u
u
u
k
u
u
u
u
k
k
k
k
u
k
k
k
u
u
u
u
k
k
u
u
k
k
u
k
k
u
u
u
k
k
k
u
u
k
u
u
k
u
k
u
u
u
k
u
u
k
k
u
u
u
k
u
u
k
u
k
k
u
k
u
k
u
u
u
k
k
u
k
k
k
k
u
k
u
u
u
u
u
u
k
k
u
k
u
u
k
k
k
u
k
k
u
k
k
k
u
u
u
k
k
u
k
k
u
k
u
k
k
k
k
k
k
u
k
u
u
k
u
k
u
k
k
k
u
k
k
k
k
k
u
k
u
u
u
k
u
u
k
u
u
k
u
k
k
u
k
u
u
u
u
u
k
k
k
u
k
u
k
u
u
u
k
k
u
k
k
u
u
k
u
u
k
k
k
k
u
u
u
k
k
u
k
k
u
u
k
k
k
k
k
k
k
u
u
u
u
k
k
u
k
u
k
u
u
k
k
u
u
k
u
k
k
u
u
k
k
u
u
u
k
u
u
u
u
k
k
u
u
k
u
k
u
u
u
u
u
k
k
u
u
u
u
u
k
k
u
u
u
u
k
u
k
k
u
u
u
k
k
u
u
k
k
k
u
u
u
u
u
u
k
k
k
k
k
u
u
u
u
u
u
u
u
u
u
u
u
u
u
k
k
u
u
u
k
u
k
k
u
u
u
u
k
u
u
k
k
u
k
k
k
u
k
k
u
u
u
u
u
u
u
u
u
k
u
u
u
k
u
k
u
u
k
u
u
u
k
u
k
u
k
k
k
u
k
k
u
k
k
u
u
u
u
u
k
k
u
u
k
u
u
u
u
u
u
k
k
u
k
u
k
k
k
u
k
u
k
u
u
u
u
u
u
k
u
k
k
u
u
u
k
k
k
k
k
k
u
u
u
k
u
k
u
u
k
k
u
u
k
k
k
u
k
u
k
u
k
k
k
k
k
u
u
k
k
k
k
u
k
u
u
u
k
u
u
k
u
k
k
k
u
k
u
u
k
k
u
u
u
k
k
u
u
u
k
u
k
u
u
k
k
k
u
u
k
k
k
k
k
k
k
k
u
u
k
u
u
k
u
k
k
u
k
k
k
k
u
u
k
u
k
k
u
k
k
k
k
k
k
u
u
k
u
k
k
k
u
u
u
u
k
k
u
k
u
k
u
u
k
k
u
k
k
k
k
k
u
k
u
k
u
u
k
k
k
k
u
u
k
k
u
u
u
k
k
u
k
u
u
k
u
u
k
u
k
k
k
u
u
u
k
u
u
u
u
u
k
u
u
u
u
u
u
u
k
k
u
k
u
k
k
u
k
u
k
u
k
u
k
k
k
u
k
k
k
u
k
u
u
u
k
k
u
k
u
k
u
k
k
u
u
k
k
u
u
k
k
u
k
u
u
k
k
u
u
k
u
k
u
u
k
k
k
u
u
k
k
k
u
u
u
u
k
k
k
k
u
u
k
u
u
u
k
k
u
k
k
u
u
k
u
u
u
u
k
u
u
k
u
k
k
u
k
k
k
u
u
u
u
u
k
u
u
k
k
u
u
k
k
k
k
u
u
u
k
k
u
k
k
u
k
k
u
k
u
k
k
k
k
u
u
u
u
k
k
k
k
k
u
k
k
u
u
u
u
u
u
k
u
u
k
u
k
k
k
k
u
k
u
u
u
u
u
k
k
k
u
k
u
k
k
k
u
u
u
u
k
u
k
u
k
u
k
k
u
k
k
k
u
k
u
k
k
u
u
u
k
u
k
k
k
u
k
u
k
k
u
u
k
k
u
k
k
k
k
u
u
k
u
k
k
u
k
u
u
k
k
u
u
k
u
u
u
u
k
u
k
k
u
u
k
u
k
k
u
u
k
k
k
k
u
k
u
u
u
k
u
k
u
u
k
u
u
u
u
k
k
u
u
k
u
u
u
u
k
u
k
k
k
u
u
u
u
u
u
u
k
k
k
k
u
k
k
k
k
k
k
k
k
u
u
k
u
u
u
k
k
k
k
u
k
k
k
u
u
k
k
u
u
k
u
k
u
u
k
u
k
k
k
k
u
k
k
u
u
k
k
k
u
k
u
k
u
u
k
u
k
u
u
u
u
u
u
k
k
u
u
u
u
k
u
k
u
u
k
k
k
k
u
k
u
u
k
u
k
u
k
k
k
k
k
u
k
k
k
u
u
k
k
k
u
u
u
u
k
u
u
u
k
u
k
k
u
u
u
k
k
k
u
u
u
k
k
k
k
k
u
k
u
k
k
k
k
u
u
k
u
k
k
k
u
k
k
k
k
k
k
k
u
k
k
u
k
k
u
u
k
u
k
u
u
u
u
u
k
u
k
u
u
k
k
u
k
k
k
u
k
u
u
k
u
u
u
k
u
k
u
u
u
u
k
k
k
u
k
k
k
k
k
u
k
u
k
k
u
k
k
k
k
u
k
u
k
k
u
u
k
u
u
k
k
u
k
k
u
k
u
u
u
k
u
k
k
k
k
k
k
u
k
u
k
u
k
k
u
u
k
k
u
u
k
u
k
k
k
u
k
k
u
u
k
k
k
k
u
k
u
u
u
k
u
k
u
u
u
u
k
u
u
k
u
u
u
u
k
k
k
k
u
k
k
k
k
k
u
u
k
u
u
u
u
k
u
u
k
u
k
k
k
u
u
u
u
u
k
k
k
u
k
u
k
k
u
k
k
u
k
k
u
u
k
u
u
k
u
u
u
k
u
u
u
u
u
u
u
k
k
u
k
k
k
k
u
k
u
k
k
u
u
u
u
k
k
u
u
k
u
u
k
u
k
k
u
k
k
u
u
k
u
u
k
u
k
k
u
k
k
k
u
u
k
k
k
u
u
k
u
k
u
k
u
k
u
u
u
k
u
u
u
u
u
k
k
k
u
k
k
k
u
k
k
u
u
u
u
k
u
k
u
u
k
u
u
u
u
k
k
u
k
k
u
k
k
k
k
k
u
u
k
u
u
u
k
u
u
k
k
u
u
k
u
u
k
k
k
u
k
u
u
k
u
u
k
k
u
k
k
k
u
u
u
k
u
k
u
k
u
u
k
k
k
k
k
k
u
u
k
k
k
k
u
u
k
u
u
k
u
u
k
u
k
k
k
u
k
k
k
k
u
k
k
k
k
u
u
k
u
u
u
u
u
u
k
u
u
k
k
u
u
u
k
k
u
u
k
u
u
u
u
u
u
u
u
u
k
u
u
k
k
u
u
k
u
u
k
k
k
u
k
u
u
u
u
u
k
u
k
u
k
k
k
u
u
u
u
u
u
u
k
u
u
u
u
u
k
u
k
k
k
u
k
u
k
u
u
k
k
u
k
k
u
u
k
k
u
k
k
u
u
u
k
u
u
u
u
k
k
k
u
k
u
u
k
u
k
u
k
u
k
u
k
k
k
u
u
u
u
k
u
u
k
u
u
u
u
k
k
u
k
u
u
k
k
u
k
u
k
u
k
k
k
k
k
u
k
k
k
u
u
k
k
u
k
k
u
k
u
u
k
k
u
u
k
u
u
u
u
k
k
u
u
k
u
k
u
k
u
u
u
u
k
u
k
k
u
k
k
k
u
u
k
k
k
u
k
u
u
k
u
k
u
k
k
u
k
u
k
k
u
k
k
k
u
u
k
k
k
u
u
k
u
k
k
k
k
k
k
u
k
k
k
k
u
u
u
k
u
u
u
u
u
u
u
u
u
u
u
u
k
k
u
k
k
k
u
u
k
u
k
u
k
k
u
u
k
k
u
k
k
u
u
k
k
k
u
k
k
k
k
k
k
u
k
u
k
k
k
k
u
u
k
k
u
u
k
k
k
u
k
u
u
u
k
k
k
k
u
u
k
k
u
u
k
u
u
u
u
u
u
u
k
u
k
u
k
u
u
k
u
k
u
k
k
k
k
k
u
u
u
k
k
k
k
k
u
k
k
k
k
u
k
u
k
k
k
k
k
u
u
k
k
k
u
k
k
k
u
k
u
u
k
u
k
k
k
k
k
u
u
u
k
k
k
k
k
u
u
k
u
k
u
u
k
u
k
u
k
u
k
u
k
u
k
u
k
k
u
k
u
u
u
u
u
k
k
u
u
u
u
k
u
u
k
u
u
u
u
k
k
k
k
k
k
k
k
u
k
u
u
u
u
u
u
u
u
u
k
u
u
k
k
k
u
u
k
u
k
u
u
u
k
u
k
k
u
u
u
u
k
u
u
k
u
k
k
k
u
k
k
k
u
k
k
k
u
k
k
u
k
u
u
k
u
u
k
u
k
u
u
k
u
u
k
u
u
k
k
k
k
u
u
u
u
k
u
u
k
u
u
u
k
k
u
k
k
k
u
k
k
k
u
k
u
u
k
u
u
k
k
k
k
u
u
k
u
u
k
u
u
u
k
u
u
u
k
u
k
k
u
k
k
u
u
k
k
u
k
k
u
k
k
k
u
u
u
u
k
u
k
u
u
k
u
k
k
u
k
u
u
k
k
u
k
u
u
k
k
k
k
u
u
k
k
k
k
u
k
u
k
u
u
u
u
k
u
k
u
u
u
k
u
k
k
u
u
u
k
k
k
k
u
u
u
u
k
u
k
u
u
u
k
u
k
k
k
k
u
u
k
k
u
u
k
k
u
u
k
k
k
k
u
k
u
u
k
k
k
k
u
u
k
k
k
u
u
u
k
u
u
u
k
k
k
k
k
u
u
u
k
u
u
u
u
k
u
u
u
u
k
k
k
u
k
k
u
u
k
u
k
u
u
k
u
u
u
k
u
u
k
u
k
u
u
u
k
u
u
k
k
u
u
u
u
k
u
u
k
k
u
k
u
k
u
u
u
k
u
k
k
u
k
u
k
k
k
u
u
k
u
u
k
u
u
k
k
u
u
u
u
u
u
k
u
k
u
k
u
k
k
k
k
k
k
k
k
k
k
u
u
u
k
k
k
u
u
k
u
u
k
k
u
u
k
u
k
k
u
k
k
u
k
k
k
u
u
u
u
u
u
k
k
u
u
u
u
k
k
u
u
k
k
k
k
k
u
k
u
k
u
u
k
u
u
u
k
k
k
u
k
k
k
k
u
u
k
u
k
u
k
k
k
k
k
k
u
k
u
u
k
u
u
k
k
u
k
k
u
u
u
k
u
u
k
u
u
k
u
u
u
k
k
u
k
u
k
u
u
k
k
k
u
u
u
u
u
k
k
u
k
u
k
k
u
k
k
u
k
k
k
u
k
k
k
u
u
k
k
u
k
k
u
u
k
k
u
u
k
k
u
u
k
k
u
u
k
u
k
u
u
u
k
k
k
u
k
u
k
k
u
k
k
u
u
k
k
u
u
k
k
k
k
u
k
k
u
k
u
u
u
u
u
u
k
k
u
k
u
k
k
u
u
u
k
k
k
k
u
k
u
u
k
u
k
k
u
k
u
u
u
u
k
u
u
u
u
k
u
k
u
u
k
k
k
u
k
k
k
k
u
u
u
k
u
k
u
u
k
k
k
k
u
k
u
k
k
k
u
k
k
k
u
u
k
k
k
u
k
u
k
u
u
u
u
k
u
u
u
k
u
u
k
k
u
u
k
u
u
u
u
k
u
k
u
k
u
k
u
k
k
u
u
u
u
u
u
k
k
k
k
k
k
u
u
u
u
u
u
k
u
k
u
k
k
u
u
u
k
k
u
u
u
u
k
u
u
k
k
u
k
k
k
k
u
k
k
k
k
u
u
u
u
u
k
k
u
u
k
u
u
u
u
u
u
u
u
k
u
k
u
k
u
k
k
u
u
u
k
u
u
u
u
k
k
k
u
u
k
u
u
k
k
u
u
k
u
k
k
u
k
u
u
u
k
u
k
u
u
k
k
k
k
k
u
k
u
k
k
k
k
k
u
k
u
u
u
u
k
u
u
k
k
u
u
u
k
u
u
k
u
k
k
u
k
k
k
u
k
k
u
u
k
k
k
u
u
u
k
u
k
u
k
u
k
k
k
k
k
u
k
k
u
k
u
k
k
k
u
k
k
u
k
u
k
u
u
u
k
u
u
u
k
u
u
u
u
k
k
u
k
k
u
u
k
k
k
k
k
u
k
u
u
u
u
u
u
u
u
u
u
k
k
k
k
k
u
k
u
k
k
u
u
k
k
k
k
k
k
k
k
u
u
u
u
u
u
u
k
k
u
u
u
k
u
u
k
k
k
u
u
k
k
u
u
u
k
k
u
k
u
u
u
u
u
k
u
u
u
k
u
u
u
k
k
u
u
k
k
k
k
k
k
u
k
k
k
k
u
k
k
u
k
u
u
u
k
u
u
u
u
k
u
k
u
u
u
u
u
u
k
u
u
k
u
u
u
k
k
k
k
u
u
k
u
u
u
u
k
k
u
k
k
u
k
u
k
k
u
k
u
u
k
k
k
u
k
k
u
u
k
k
k
u
k
k
u
u
k
k
k
k
k
k
k
u
k
u
k
u
u
k
k
u
k
u
k
k
k
u
k
u
u
u
u
k
k
k
k
u
u
k
u
u
u
k
u
k
u
u
u
k
k
u
k
k
u
k
k
u
u
k
u
k
u
k
k
u
k
u
u
u
u
u
k
u
k
u
u
u
u
k
u
k
k
k
u
u
u
u
k
k
u
k
u
k
k
u
k
k
u
k
u
k
k
u
u
u
k
k
u
u
u
u
k
u
u
u
k
k
u
k
u
k
u
k
u
u
u
k
k
u
u
u
u
u
k
u
k
u
k
k
k
k
u
u
u
u
k
k
u
k
u
u
k
k
u
u
k
u
u
u
u
u
k
k
k
k
k
k
u
u
u
u
k
u
k
u
k
u
u
u
k
u
k
k
u
u
u
k
k
u
u
k
u
u
k
k
u
u
u
k
k
u
k
k
k
k
u
u
k
u
u
u
u
u
k
u
k
k
k
u
k
k
u
u
k
k
u
k
k
k
u
k
u
u
k
k
k
k
k
u
u
k
u
k
u
k
u
k
k
k
u
u
u
k
u
u
k
k
k
k
k
k
u
k
k
u
k
k
u
u
u
k
u
u
u
u
k
k
u
u
u
k
k
u
u
u
u
k
k
u
u
k
k
k
u
k
k
u
k
u
k
u
u
k
u
u
u
u
k
k
u
k
k
u
u
u
u
u
u
k
u
k
u
u
k
k
u
k
u
k
u
u
u
k
k
k
k
k
u
k
k
u
u
u
u
u
k
u
u
u
u
u
u
u
k
u
u
u
k
k
k
u
k
u
u
u
u
k
k
k
k
u
u
u
u
k
u
k
k
k
u
u
u
k
k
u
u
k
k
k
u
k
u
u
u
k
k
u
u
u
u
k
k
k
k
k
u
u
u
u
u
u
u
u
k
u
k
k
u
u
k
u
k
k
u
k
u
u
u
u
k
u
k
u
u
u
u
u
u
u
k
k
k
k
u
u
k
k
k
u
k
u
u
u
u
k
u
k
u
u
u
k
k
u
u
u
k
k
k
u
u
u
k
u
k
k
k
k
u
k
u
k
u
u
u
u
u
k
k
u
u
u
k
k
k
u
k
k
u
u
k
u
u
k
k
k
u
u
k
u
u
k
u
u
u
k
k
k
u
u
u
k
k
u
u
k
k
k
k
u
u
k
u
u
k
k
u
u
k
u
k
u
u
k
k
u
u
u
u
u
u
k
k
u
k
u
u
u
u
k
u
u
k
k
u
u
k
k
u
k
k
u
u
k
u
u
u
u
u
k
u
u
k
u
k
k
u
k
k
u
u
k
k
k
k
k
u
u
u
u
u
k
k
u
k
u
u
u
u
u
u
k
k
u
u
u
u
u
u
u
u
k
u
u
u
u
k
k
u
k
u
k
u
k
k
k
k
k
u
k
u
u
k
k
u
u
u
u
u
u
u
k
k
u
k
u
u
u
k
k
u
u
k
u
k
k
u
u
u
u
k
k
u
u
u
k
u
k
u
k
u
u
u
u
u
u
u
u
k
k
u
u
k
u
k
k
k
u
k
k
u
u
u
u
k
u
u
u
u
k
k
k
u
u
u
k
u
u
k
u
u
u
u
k
u
k
u
k
u
k
u
u
u
k
k
k
k
u
k
k
u
u
k
u
k
u
u
u
k
u
u
u
u
k
k
k
u
u
k
k
k
u
k
u
k
k
k
k
k
u
k
u
u
u
k
k
u
u
k
u
u
k
k
k
u
k
u
u
k
u
k
k
k
u
k
k
u
u
k
u
k
k
u
u
u
k
u
k
k
k
k
u
u
k
u
u
k
k
u
u
k
k
u
u
k
k
u
k
k
k
k
u
u
u
u
k
u
u
k
u
k
u
k
k
u
k
u
u
k
u
u
k
k
k
k
k
u
u
u
u
u
k
k
u
k
k
u
k
u
u
k
u
k
u
u
k
u
u
k
k
u
k
u
u
u
u
u
u
k
k
k
k
k
u
k
k
u
k
u
k
k
k
u
u
k
k
k
u
u
u
u
u
u
k
k
k
u
u
u
k
u
k
k
u
u
u
u
k
k
k
k
k
u
k
u
u
k
u
u
k
u
u
u
u
u
k
k
k
u
u
k
k
u
k
k
u
k
u
k
k
u
k
u
u
k
u
k
k
k
k
u
k
k
k
u
u
k
k
u
u
u
k
k
u
u
k
u
u
k
u
k
k
u
k
u
u
u
u
u
u
k
u
k
k
k
u
u
k
u
u
u
k
k
k
k
u
u
k
k
u
u
k
k
u
k
k
k
u
u
k
k
u
k
u
u
k
u
k
u
k
k
u
u
u
u
u
u
k
k
k
k
u
k
k
u
u
k
k
u
u
k
u
k
u
u
k
u
u
u
u
k
k
u
u
k
k
u
k
k
u
k
u
u
u
k
u
u
u
u
k
u
k
u
k
u
u
k
k
k
u
k
u
k
k
k
u
k
k
k
u
k
u
k
u
u
u
u
u
k
u
u
u
u
u
u
u
k
u
k
u
k
u
k
u
u
k
u
k
u
u
k
k
k
u
u
u
u
k
k
k
u
k
k
u
u
k
u
u
k
u
k
u
k
u
k
k
u
u
u
u
u
u
u
k
k
k
k
u
u
u
k
k
k
u
k
k
u
k
u
k
u
k
u
k
k
k
k
k
k
k
k
k
u
u
k
k
u
u
u
k
u
u
k
u
k
k
u
u
u
k
k
u
k
k
k
k
u
k
k
u
u
u
k
u
u
k
u
k
u
u
k
u
k
u
u
k
k
u
u
k
k
k
k
u
k
k
k
u
k
u
k
u
k
u
u
u
k
u
k
u
u
k
k
u
u
k
k
k
u
k
k
u
u
k
k
k
u
k
k
k
k
u
u
u
u
u
k
k
k
u
k
u
k
u
k
k
k
u
k
k
u
k
u
k
u
u
u
k
k
u
k
u
k
k
k
u
u
k
k
k
u
u
k
k
u
u
u
u
u
k
u
k
u
k
u
u
u
u
u
u
u
k
u
k
k
u
u
u
u
k
k
u
u
u
u
k
u
u
k
u
k
u
k
u
k
k
k
k
k
u
u
u
u
k
k
k
u
k
u
u
k
u
u
k
k
u
k
u
u
k
u
u
u
u
k
k
k
u
u
u
u
k
u
k
u
k
u
k
u
u
u
k
k
u
k
u
k
u
u
u
u
u
k
k
u
u
k
k
u
k
u
u
k
u
u
u
u
k
k
u
k
u
k
k
k
u
k
u
u
u
k
k
u
u
u
k
u
u
u
k
u
u
u
u
k
u
u
u
u
u
k
u
u
u
u
k
u
k
k
k
k
u
k
u
k
k
k
k
u
k
k
u
u
u
k
u
u
k
k
k
u
k
u
k
u
k
u
u
u
u
u
u
u
k
k
u
k
u
u
u
u
u
k
u
k
u
k
k
u
k
u
k
k
u
k
k
u
u
u
k
u
k
u
k
u
u
k
u
u
k
k
k
u
k
k
u
u
k
k
u
k
u
u
u
k
u
k
k
u
k
k
u
k
u
u
k
k
u
k
k
k
u
u
u
k
u
k
k
u
u
k
u
k
k
u
k
k
k
k
k
k
u
u
k
k
u
u
k
k
u
k
k
k
u
u
k
u
u
u
u
u
u
k
u
u
u
k
u
u
k
k
k
k
k
u
u
k
u
u
u
k
k
u
u
u
k
u
k
u
u
k
u
k
k
u
k
u
u
u
k
k
k
u
u
u
u
u
k
u
u
u
k
u
u
u
u
u
u
u
k
k
u
u
k
k
u
k
k
k
u
u
k
k
u
k
k
u
k
u
u
u
k
k
u
u
u
k
k
k
u
u
k
u
u
u
u
u
u
u
k
k
u
k
u
k
k
u
k
u
u
k
k
u
u
k
u
u
u
k
k
k
u
k
u
k
k
u
k
k
u
u
k
u
u
k
u
k
u
k
u
k
k
u
u
k
u
k
k
k
k
u
u
u
k
u
u
k
u
k
u
k
u
u
u
u
u
u
u
k
k
k
k
u
k
u
k
u
u
u
u
k
u
k
k
k
k
u
k
k
u
k
k
k
k
k
u
k
u
k
k
k
k
u
u
k
k
u
k
u
u
k
k
k
k
k
k
u
u
u
u
u
u
u
u
k
k
k
u
k
k
k
k
k
k
u
u
u
u
k
u
u
k
u
k
k
u
u
u
u
u
k
u
k
k
u
k
u
k
k
k
k
k
k
u
u
k
u
k
u
k
k
u
k
u
k
u
k
k
k
k
u
u
u
u
k
k
u
k
u
k
u
k
k
u
k
u
k
k
u
k
k
u
k
k
k
u
u
k
k
u
k
k
u
u
u
k
u
u
k
u
u
k
k
u
k
u
k
k
k
k
u
u
k
u
k
k
k
u
k
u
u
u
u
k
k
k
k
u
k
u
u
u
k
k
u
k
u
u
k
k
k
k
k
u
k
u
u
k
u
u
k
u
u
k
u
u
u
k
k
k
k
k
u
u
k
k
u
k
k
k
k
k
u
k
k
k
u
u
u
k
k
k
u
u
k
u
u
k
k
k
k
k
u
u
k
u
u
u
u
k
k
k
u
k
k
k
u
k
u
u
u
u
u
u
u
u
k
u
u
u
k
u
k
u
u
u
k
k
u
u
u
k
k
k
k
k
u
u
k
k
u
k
u
k
k
k
u
u
k
u
k
k
k
u
k
k
k
k
u
k
k
k
u
u
k
k
u
u
k
k
u
u
u
k
u
k
k
k
k
u
k
k
k
k
u
k
u
k
u
k
k
u
k
u
k
k
k
k
k
u
u
k
u
u
k
u
u
u
u
u
u
k
u
u
k
k
u
k
k
u
k
k
k
k
u
k
k
u
k
u
u
k
k
k
u
k
u
u
u
u
k
k
k
u
k
u
k
u
u
u
u
k
k
k
u
u
u
u
k
u
u
u
k
k
k
k
k
u
k
u
u
k
k
u
u
k
u
k
k
u
k
k
k
k
k
k
u
k
u
k
u
u
u
u
u
u
u
k
k
k
k
u
k
u
k
k
u
u
u
u
k
k
u
k
k
k
k
u
u
k
k
k
k
u
u
k
k
u
u
u
u
u
u
k
k
k
u
u
k
k
u
u
u
u
k
k
k
u
k
k
k
k
u
k
k
u
k
k
k
k
u
k
u
k
u
k
u
k
u
u
u
k
k
u
k
k
k
k
k
k
k
k
k
k
u
k
k
u
k
u
k
k
u
u
k
k
u
k
u
u
k
k
u
k
k
k
u
u
k
u
k
k
k
k
k
k
k
k
k
k
k
k
u
k
u
k
u
u
k
k
k
u
k
u
u
k
u
k
u
k
u
u
u
k
u
k
k
u
u
u
k
u
u
k
u
u
u
u
u
k
u
u
k
u
k
u
u
u
u
k
k
u
k
u
u
u
u
k
u
u
u
u
u
u
k
u
u
k
u
u
k
u
k
u
u
k
u
u
k
k
k
k
u
k
u
k
u
k
k
k
u
k
k
u
u
k
k
k
u
k
u
u
u
k
k
k
u
k
k
k
u
u
k
u
k
k
u
k
u
u
u
u
u
k
k
u
k
u
u
k
k
u
k
u
k
k
k
u
k
k
k
k
u
u
k
k
u
k
k
k
k
u
u
k
u
k
u
k
u
k
u
k
u
k
k
k
k
k
k
u
u
u
u
k
k
k
u
u
k
k
u
u
k
u
u
k
k
k
u
u
u
u
u
k
k
u
u
k
u
u
k
u
k
k
k
u
u
k
k
k
k
u
u
k
k
k
k
k
u
k
k
u
k
u
u
u
u
k
k
u
k
k
k
k
k
k
k
k
k
u
k
k
k
u
u
u
u
u
k
u
u
k
k
u
u
k
u
k
u
k
u
k
u
u
u
u
u
k
k
k
u
u
k
k
k
k
k
u
k
u
u
k
u
u
u
k
k
k
u
k
u
u
k
u
k
u
k
k
u
u
u
k
u
k
u
k
u
k
k
u
u
k
u
u
k
k
u
k
k
k
u
u
u
u
u
u
u
k
u
u
u
u
k
k
u
k
u
u
k
k
k
k
u
k
u
k
k
u
k
k
k
k
u
u
u
u
k
k
k
u
k
u
k
u
u
u
u
k
u
u
k
u
k
u
k
k
u
u
k
k
k
u
u
u
u
k
k
u
k
u
u
k
u
k
u
u
k
k
k
u
u
u
u
k
k
u
u
u
u
u
u
u
u
u
k
k
u
u
k
k
k
k
u
k
k
u
u
u
u
k
u
u
k
k
u
u
u
k
u
k
k
k
k
u
k
u
u
k
u
k
u
k
k
u
u
k
u
k
u
k
k
k
u
k
u
k
k
u
u
k
k
u
u
u
k
k
k
u
u
u
k
k
u
k
u
k
k
u
k
k
u
k
u
k
k
u
k
k
u
k
k
u
k
k
u
u
u
u
u
u
u
u
u
u
k
k
k
k
k
u
k
u
u
u
u
u
u
u
u
u
u
u
u
u
k
k
k
k
u
k
k
k
k
k
u
k
k
k
k
k
k
k
u
k
k
k
k
k
k
k
u
k
k
k
u
u
k
k
u
u
k
u
k
k
u
k
u
u
k
k
k
u
u
k
k
u
k
u
u
u
u
k
u
k
k
k
k
u
u
u
u
u
k
u
u
k
k
k
u
u
k
u
k
u
k
u
u
k
u
u
u
u
u
u
k
k
k
u
u
u
u
k
k
k
k
u
k
u
u
k
u
k
k
u
u
k
u
k
u
k
u
u
k
u
k
u
k
k
k
k
k
u
k
k
u
k
k
u
u
k
k
k
u
k
u
u
k
k
k
k
u
u
u
u
k
k
k
u
k
u
k
u
u
u
k
u
u
u
k
u
u
k
k
k
u
u
k
u
u
u
k
k
u
u
k
u
k
k
k
k
u
u
u
k
k
k
u
k
k
k
k
u
u
u
k
k
k
u
u
k
u
k
k
u
u
u
k
u
k
k
k
u
u
u
k
k
k
k
u
k
k
u
k
u
k
u
u
u
u
k
k
k
k
u
k
u
k
k
k
u
k
k
k
k
u
k
u
k
u
k
u
u
u
k
u
k
u
k
k
u
k
u
u
u
k
u
u
u
u
k
u
u
k
k
k
k
u
u
u
k
u
k
k
u
k
k
u
k
k
k
u
u
u
k
k
k
k
k
u
k
k
u
k
k
u
k
k
k
k
k
k
u
u
k
u
k
k
k
k
u
k
k
u
u
u
k
k
u
k
u
u
k
u
k
u
k
u
k
u
u
k
k
k
k
u
k
u
k
u
u
u
k
u
u
k
u
u
u
k
k
u
u
u
k
k
k
u
k
u
u
u
u
u
k
k
u
u
k
u
k
k
k
k
u
u
u
k
k
k
k
u
k
u
k
u
k
u
k
k
u
u
k
u
u
k
k
k
k
k
u
k
k
k
k
k
u
k
k
k
k
k
k
k
k
u
u
u
u
u
k
u
k
k
k
u
u
u
u
u
k
k
u
u
k
k
k
u
k
u
k
u
k
u
k
u
u
k
u
k
u
u
k
k
u
k
k
u
k
u
k
u
k
u
u
u
u
u
u
k
k
k
u
u
k
u
u
k
u
u
u
u
k
u
k
k
u
u
k
k
k
k
k
k
k
u
k
u
k
k
u
u
u
u
u
k
k
u
k
u
k
k
u
u
u
k
u
u
u
k
u
u
u
u
u
u
u
k
u
u
k
k
k
u
k
k
u
u
k
u
k
u
k
k
u
k
u
k
k
u
u
k
u
u
k
k
u
u
u
u
k
k
k
k
k
k
u
k
u
u
u
u
k
k
u
u
u
k
u
u
u
k
k
u
k
u
k
k
k
k
u
k
u
u
k
u
u
k
u
u
k
k
u
k
k
k
k
k
u
k
u
u
k
u
k
k
k
u
u
k
u
u
u
u
k
k
k
u
u
k
k
k
u
k
u
u
u
u
u
u
k
u
k
k
k
u
k
k
k
k
u
k
k
k
u
u
k
u
u
u
k
u
k
u
u
u
k
u
k
u
k
k
u
u
k
u
k
k
u
u
u
k
u
u
k
u
k
k
u
k
u
k
k
u
k
u
u
u
k
k
k
u
k
u
u
u
u
k
u
k
u
u
k
u
u
u
k
k
k
k
k
u
k
u
k
k
u
u
u
k
k
u
u
u
u
u
u
u
u
k
u
u
u
u
k
u
k
u
k
u
k
u
u
u
u
u
u
u
u
u
k
u
k
u
k
u
u
k
u
k
k
u
k
u
k
k
u
u
u
u
u
k
u
u
k
u
u
u
k
u
k
k
k
u
k
u
k
u
u
k
u
u
k
u
u
u
u
k
k
k
k
u
u
k
k
u
u
u
k
u
k
u
u
u
k
k
k
u
u
k
u
u
k
k
k
k
k
k
u
k
k
u
k
u
u
k
k
u
k
u
k
k
k
k
u
k
k
u
u
k
k
u
u
u
k
u
u
k
u
u
k
k
u
k
u
u
k
k
u
u
k
u
k
k
k
k
u
u
k
k
u
k
u
u
u
k
k
u
u
k
k
u
k
u
u
u
u
k
k
k
k
k
u
u
k
u
k
u
u
k
u
u
k
u
u
u
u
u
u
u
k
u
k
u
k
k
u
u
k
k
k
u
k
u
u
k
k
k
k
u
k
u
k
u
u
u
k
u
u
u
k
u
u
k
u
u
u
k
k
u
k
k
k
k
u
u
k
u
k
k
u
u
k
k
u
u
k
k
u
k
k
k
u
k
u
k
u
u
u
u
u
k
k
k
u
u
k
k
k
k
u
u
u
k
k
k
k
k
k
u
u
u
u
k
u
k
u
k
k
u
u
u
k
u
k
k
k
u
u
k
k
k
u
u
u
k
k
u
u
k
k
k
u
k
k
k
k
u
k
k
u
u
k
k
k
u
k
k
u
u
k
u
k
u
u
k
k
u
k
k
u
u
k
k
u
u
k
u
u
k
k
u
u
u
k
k
u
u
k
k
u
u
k
k
k
k
u
u
k
u
k
k
k
u
u
u
k
u
k
k
k
u
k
u
u
u
u
u
k
k
u
k
k
k
u
k
k
k
u
k
k
k
k
k
k
k
k
u
u
u
k
k
k
k
u
k
k
u
k
k
k
k
k
k
u
u
k
u
k
u
u
u
k
u
k
k
k
k
k
u
u
u
k
u
u
k
k
u
u
k
u
k
k
u
k
k
u
u
u
u
k
k
u
u
u
u
u
u
u
u
u
u
u
u
k
k
k
u
k
u
k
u
k
k
u
u
k
k
u
k
k
u
u
k
u
u
u
k
k
u
u
k
u
u
k
k
u
k
k
k
u
u
u
k
u
k
k
u
k
k
k
k
u
u
u
u
k
u
k
k
u
k
u
u
u
u
u
k
k
u
k
u
u
k
k
k
k
u
u
u
k
u
u
k
u
u
u
u
k
k
u
k
u
k
u
k
u
u
u
k
k
k
u
k
u
k
k
u
u
k
u
u
u
u
u
u
u
k
u
k
k
u
k
k
k
k
u
u
k
k
u
u
u
k
k
k
k
k
k
k
u
k
k
u
u
k
k
u
k
u
u
k
u
u
u
u
k
k
k
k
k
u
k
k
u
u
k
u
u
u
u
k
k
k
k
u
k
u
u
k
k
k
k
u
k
k
k
k
k
k
u
u
u
k
k
k
k
u
u
k
u
u
u
k
u
k
k
u
k
u
k
u
k
k
k
k
u
u
k
k
u
u
k
k
k
k
k
k
u
u
k
k
k
u
u
u
u
k
k
u
k
k
k
k
k
u
k
u
k
u
u
u
u
u
k
k
k
u
k
k
k
k
k
u
k
k
u
u
u
k
k
k
u
k
k
u
u
k
u
k
k
u
u
u
u
k
u
u
u
u
k
u
k
k
k
u
k
u
u
u
u
k
k
k
u
k
k
k
u
u
u
k
k
k
k
k
u
k
u
k
k
u
k
k
k
k
k
k
u
u
k
u
u
u
u
k
u
u
k
u
u
u
k
u
u
k
u
u
u
k
k
u
u
k
u
u
u
u
u
k
u
u
u
k
u
k
k
k
u
k
k
u
u
u
u
u
u
k
u
k
k
u
k
u
u
u
k
k
u
u
k
k
k
u
u
u
u
k
u
u
u
k
k
u
u
k
u
k
k
k
u
k
k
u
k
k
k
u
k
u
u
k
u
u
k
u
k
u
k
k
u
u
u
u
k
u
u
k
k
k
k
u
u
u
u
u
k
k
k
k
k
u
u
k
k
u
u
u
k
u
k
k
k
k
u
u
u
k
u
u
u
k
k
k
k
k
u
u
k
u
k
u
k
u
k
u
u
u
k
u
k
u
k
k
k
u
k
u
k
k
u
k
u
k
k
u
k
k
u
k
k
k
u
u
u
u
k
k
k
k
k
k
u
u
u
u
k
u
u
u
u
u
k
k
u
u
k
k
k
u
u
k
u
u
u
u
u
k
u
k
k
u
k
u
k
u
k
k
k
u
k
k
k
k
k
k
k
u
u
u
k
k
u
u
k
k
u
u
u
u
k
u
u
u
k
u
k
k
k
u
k
k
k
k
k
u
k
u
u
k
k
k
u
u
u
k
k
k
u
u
k
k
k
u
u
u
u
k
k
u
u
u
u
u
k
k
k
u
u
u
k
u
k
k
u
u
u
k
k
k
u
k
u
u
k
k
k
k
k
u
u
k
u
k
u
k
u
k
k
u
u
u
u
k
k
k
k
k
k
u
k
u
u
u
k
k
u
u
k
k
k
k
u
u
u
k
u
k
k
k
u
k
k
k
k
u
u
k
u
k
k
u
u
u
u
u
u
k
k
u
k
k
k
k
k
u
k
k
k
u
k
u
k
k
u
u
k
k
k
k
k
u
k
u
k
u
u
u
u
k
u
k
k
k
k
u
u
u
u
u
k
k
u
k
u
u
k
u
k
u
u
k
u
u
k
k
k
u
k
u
k
k
u
u
k
k
k
u
u
u
k
u
u
k
k
k
k
k
u
k
u
k
u
k
u
k
u
u
k
u
k
u
u
k
u
u
u
u
k
k
u
u
k
k
u
k
k
u
u
k
k
k
k
k
k
k
k
u
u
k
u
u
k
k
k
k
u
u
k
k
u
k
u
k
u
u
u
k
u
k
u
k
k
k
k
u
u
u
k
u
u
u
k
u
u
u
k
k
k
k
k
u
k
k
k
k
k
k
k
u
k
u
u
k
k
u
u
k
k
k
u
k
u
k
k
u
u
u
u
u
u
k
u
u
k
k
u
u
k
u
u
k
k
k
k
u
k
k
k
k
k
k
u
u
k
u
u
u
u
u
k
k
u
u
k
u
u
u
k
k
k
k
k
k
k
k
k
k
k
u
k
k
u
k
u
k
k
u
k
k
k
u
k
k
k
u
k
k
u
k
u
k
k
k
k
u
u
k
u
u
k
k
k
k
u
k
k
k
k
u
k
k
u
u
k
k
k
k
k
u
u
u
u
u
u
k
k
u
u
u
k
k
u
u
u
u
k
k
u
u
u
k
u
k
k
k
k
k
k
u
k
u
u
k
u
k
u
k
k
u
u
k
u
u
k
u
u
k
k
k
k
u
k
u
k
u
u
u
u
u
k
k
u
k
k
u
k
u
u
k
k
u
u
k
u
u
k
u
u
k
k
u
u
k
u
k
k
u
k
k
k
k
u
k
k
k
k
k
k
u
k
k
k
u
k
k
u
k
k
k
k
k
u
k
u
u
u
k
u
u
k
k
u
u
u
u
k
u
k
u
k
u
k
k
k
k
u
u
u
u
u
k
k
u
k
u
u
k
u
k
u
k
k
u
k
u
k
u
u
k
u
k
k
k
u
k
k
k
u
u
u
u
u
u
k
u
u
u
k
k
u
k
u
k
u
u
k
u
u
k
u
k
k
k
u
u
k
u
k
k
u
u
k
k
k
u
u
u
u
u
k
k
u
u
k
u
u
k
k
k
k
u
u
k
u
u
u
k
k
k
k
u
u
k
k
k
u
k
u
k
u
k
k
k
u
u
k
u
u
u
k
u
u
k
u
u
k
u
u
u
k
k
u
u
u
k
u
k
k
u
k
u
u
k
k
k
k
u
k
k
k
k
u
k
k
u
k
u
u
u
k
u
k
u
u
k
u
k
k
k
k
k
k
k
u
k
k
k
k
u
k
u
k
u
u
u
k
u
k
k
k
u
k
u
k
u
k
u
k
u
u
u
k
k
k
k
u
u
u
u
u
u
k
k
u
k
u
u
k
u
u
k
k
k
k
k
k
k
u
u
k
k
k
k
u
k
u
u
u
u
u
k
u
k
u
u
k
u
u
k
u
k
k
k
u
k
u
u
u
u
u
u
k
k
k
u
u
u
u
u
u
u
k
k
u
k
k
k
k
k
u
k
u
u
u
k
u
u
k
k
u
k
k
u
u
u
u
u
u
u
u
u
u
u
k
k
k
u
k
k
u
k
u
k
k
k
k
u
k
u
u
u
k
k
u
u
k
u
k
k
k
k
u
k
k
k
k
u
k
k
k
u
k
k
u
k
k
k
u
k
k
k
k
u
u
k
k
k
k
k
k
k
u
u
k
u
u
k
k
k
k
u
u
u
k
k
k
u
u
u
u
u
u
k
k
k
k
k
k
k
k
k
u
k
k
u
u
k
k
u
u
u
k
u
k
k
u
u
u
u
u
k
u
u
u
k
k
k
k
k
k
u
k
k
u
u
k
u
k
u
k
k
k
u
u
u
u
u
k
u
u
k
u
u
k
k
u
k
k
u
k
u
u
k
u
k
u
k
u
k
u
k
u
u
u
u
u
u
u
u
u
k
u
k
u
k
k
u
u
u
k
u
u
k
k
k
k
k
k
u
u
u
k
k
u
u
k
k
u
k
u
u
k
k
u
k
u
u
k
u
u
k
u
u
u
u
u
k
k
k
u
u
u
u
k
k
k
k
k
k
u
k
k
k
u
u
u
k
u
u
u
k
k
k
u
k
u
k
u
k
u
k
k
u
u
k
k
k
u
u
u
u
u
u
u
k
k
k
u
u
u
u
u
k
u
u
u
k
k
u
k
k
u
u
u
k
k
u
k
k
k
u
k
k
u
k
k
u
u
u
u
k
u
k
k
u
u
k
k
k
u
u
u
k
k
k
k
k
k
k
u
u
k
k
u
k
k
k
k
k
u
u
k
k
u
k
k
k
k
k
k
u
u
k
k
u
u
k
u
k
k
u
k
k
u
k
k
u
u
u
k
k
k
k
u
u
u
u
u
u
u
u
k
u
k
u
k
k
k
u
k
k
u
k
k
k
k
k
u
k
u
u
u
u
k
u
k
k
k
u
k
k
u
u
k
k
u
k
k
k
k
u
k
u
k
k
u
k
k
u
k
u
k
k
k
u
k
u
u
k
k
k
u
k
k
u
k
u
k
u
k
u
u
k
k
k
k
u
u
u
k
u
u
k
k
u
k
u
k
u
u
k
k
u
k
k
k
k
u
k
u
k
k
u
k
k
u
k
k
k
u
u
u
u
u
u
u
u
u
k
u
u
u
u
u
k
u
k
k
k
k
k
k
u
u
k
k
u
k
k
k
u
u
u
k
k
u
k
k
u
u
k
k
k
k
k
u
k
k
u
k
u
k
u
k
u
k
u
k
k
k
k
u
u
u
u
u
u
k
k
k
u
k
u
u
u
u
u
k
u
k
k
k
k
k
k
u
u
k
k
k
u
k
u
k
u
k
k
k
k
u
u
u
k
k
k
u
k
k
k
k
u
k
k
u
k
k
u
u
k
k
k
k
u
k
u
u
u
k
u
u
u
u
k
k
k
k
k
k
k
u
u
k
k
u
k
k
u
k
u
u
k
k
k
k
k
u
u
k
u
u
k
k
k
u
u
u
u
u
u
k
u
k
u
u
u
k
u
k
k
u
u
u
u
k
k
u
u
u
u
u
k
u
k
u
u
k
u
k
k
u
u
k
k
k
u
k
u
k
k
u
u
k
k
u
u
u
k
u
u
k
k
k
k
k
k
u
k
u
u
k
u
k
u
k
k
u
u
u
k
u
k
u
k
k
u
k
k
u
k
k
u
u
u
u
u
k
k
u
k
k
u
u
k
u
u
u
k
k
u
u
k
u
u
u
k
u
u
k
u
k
u
k
u
u
k
k
k
k
k
u
k
k
k
k
k
k
k
k
u
k
k
k
k
u
k
u
u
u
u
k
k
k
u
u
k
u
k
k
k
k
k
k
k
k
k
u
u
k
u
u
u
u
u
u
u
k
k
u
u
u
k
k
k
k
u
k
u
u
u
k
u
k
k
u
u
u
k
k
k
k
k
u
k
u
u
u
u
k
u
k
u
k
k
u
u
u
u
k
u
k
k
u
k
k
u
u
k
u
u
k
u
k
k
u
u
u
k
u
u
u
u
k
u
k
k
k
u
u
k
k
k
k
k
u
u
u
k
k
u
u
k
k
u
u
k
u
u
u
u
k
k
u
u
k
k
k
k
u
k
u
k
u
u
u
u
u
u
u
k
k
u
u
u
k
u
k
u
k
k
k
k
k
k
k
k
u
u
k
u
k
k
k
u
k
k
u
k
u
k
u
k
k
u
k
k
u
k
k
u
u
k
k
k
k
u
k
u
k
u
k
k
u
u
k
k
u
k
u
k
k
u
k
k
k
u
u
u
u
k
k
k
u
k
u
u
u
k
k
k
u
k
u
u
u
u
k
u
k
u
u
k
k
u
u
k
k
k
u
k
u
u
k
u
k
k
u
k
k
u
u
u
k
k
k
k
u
u
k
k
u
u
k
u
k
k
k
u
k
k
u
u
u
k
u
k
k
u
k
u
u
u
k
u
u
k
u
u
u
u
u
u
k
k
k
u
k
k
k
u
u
u
u
k
u
u
u
u
u
u
k
k
u
u
u
u
u
k
u
k
u
u
u
u
k
k
u
u
k
u
k
u
u
k
k
u
k
u
k
k
u
k
k
u
k
k
k
k
k
u
k
u
k
k
u
k
k
u
k
k
u
u
k
k
k
k
k
k
k
u
k
k
u
u
u
u
k
u
k
k
u
k
u
u
k
k
k
u
k
k
u
k
u
u
k
u
k
k
k
u
k
k
u
u
k
k
u
u
k
k
k
u
k
k
k
u
u
k
u
u
k
k
u
k
k
u
u
k
k
u
k
k
u
u
k
u
k
u
u
u
k
u
k
k
u
k
k
k
u
u
k
k
u
k
u
k
u
k
k
k
u
k
u
k
u
k
u
u
k
k
k
k
k
u
u
u
k
u
u
u
u
k
k
u
u
k
u
k
k
k
k
k
u
k
k
k
k
u
k
k
u
k
u
k
u
k
u
u
k
u
k
k
k
u
k
u
k
u
k
u
u
k
k
k
k
u
k
u
u
u
u
k
k
u
u
k
u
k
u
k
u
u
u
k
k
k
k
k
k
k
u
u
u
u
k
k
u
k
k
u
u
k
k
u
u
u
u
k
u
k
u
k
u
k
u
k
k
u
u
u
u
u
k
k
u
u
k
u
u
u
u
k
u
k
u
u
u
k
k
u
k
k
k
k
k
k
k
k
u
u
u
k
u
k
k
u
u
k
k
k
k
k
k
k
k
k
k
u
u
k
k
u
u
u
k
u
k
k
k
u
k
k
u
k
u
k
u
k
u
k
k
u
k
k
k
u
k
k
u
k
k
k
k
k
u
u
u
u
k
u
k
k
u
u
k
u
u
k
k
u
u
k
u
u
k
k
k
k
u
u
u
k
k
k
u
u
u
u
k
k
k
u
u
k
u
u
u
k
k
k
u
u
k
k
k
u
u
u
u
k
u
u
u
k
u
k
k
u
k
k
u
u
u
u
u
u
k
u
k
u
k
k
u
k
k
u
k
u
k
k
u
k
k
u
u
k
u
k
k
u
k
u
u
k
u
u
k
u
u
k
u
k
u
u
k
k
u
k
u
u
u
u
k
k
k
k
u
k
k
u
k
k
k
u
k
u
k
u
k
u
u
u
k
u
u
k
u
u
u
k
k
k
u
k
k
u
u
u
k
u
k
k
u
u
k
k
k
u
k
k
u
u
u
u
u
k
k
u
u
k
k
u
u
u
u
u
u
k
k
k
u
u
k
k
k
k
k
u
u
u
k
k
u
u
k
u
u
k
u
u
u
u
u
u
k
k
k
k
u
u
k
u
k
u
k
u
k
k
u
k
u
k
k
u
u
u
k
u
u
k
k
u
k
k
u
u
u
k
u
u
k
k
k
k
k
k
k
k
u
u
k
k
u
k
k
k
u
u
u
k
k
u
u
k
u
k
k
k
u
k
k
k
u
k
u
k
k
u
k
u
k
u
k
k
k
u
k
u
u
u
u
k
k
k
u
u
u
u
k
k
u
u
k
k
k
u
u
k
u
u
k
u
u
u
k
u
k
k
k
u
k
k
k
k
k
u
u
u
k
u
k
u
k
u
u
u
k
u
k
u
k
u
u
u
k
u
k
u
u
k
u
u
k
k
u
k
u
k
u
u
u
u
k
k
u
u
u
k
u
k
k
u
k
k
k
k
k
u
k
u
k
k
u
u
u
k
u
u
k
u
u
k
u
u
u
u
u
k
k
k
u
k
u
u
k
u
k
u
u
k
u
k
k
k
u
u
u
u
u
u
k
u
k
k
k
k
u
k
u
u
u
k
k
u
k
u
k
u
u
k
k
k
k
u
k
k
u
u
k
u
u
k
u
u
u
k
k
k
k
k
u
u
k
u
u
k
u
u
u
k
k
k
k
u
k
k
k
k
u
u
k
k
k
u
k
k
u
k
u
k
u
u
k
k
k
k
k
u
u
k
u
u
u
u
k
u
k
k
u
u
u
k
u
k
k
u
u
k
u
k
k
u
u
k
k
k
k
u
u
k
u
k
u
k
k
u
k
u
u
u
k
k
k
k
u
k
k
u
k
u
u
k
k
k
k
u
u
u
k
u
k
k
u
k
k
u
k
k
u
k
u
u
u
k
u
u
k
u
k
k
u
u
k
k
k
u
u
u
k
u
k
u
u
k
k
k
k
k
k
k
u
u
u
u
u
u
k
k
k
u
u
k
k
u
k
k
u
k
k
u
k
u
k
u
k
u
k
u
u
u
u
k
k
k
u
k
k
k
k
u
k
k
k
u
k
u
u
k
u
k
k
k
k
u
k
u
u
k
k
u
u
k
u
k
k
k
k
k
k
k
u
u
u
u
k
k
u
k
u
k
u
u
k
k
u
k
u
k
u
u
u
k
u
k
k
k
u
u
k
k
k
k
u
u
k
u
k
k
u
u
u
u
u
k
u
k
u
k
k
k
k
u
u
u
k
k
u
k
k
k
k
k
k
k
k
u
u
u
u
k
k
u
u
k
u
k
u
k
u
k
u
k
u
u
u
k
u
u
u
k
u
u
u
u
u
k
k
u
u
k
u
u
k
k
k
u
k
u
u
k
u
k
k
u
u
k
u
k
k
u
k
k
k
u
u
k
k
u
u
k
k
u
k
u
k
u
k
k
k
k
u
k
k
k
k
u
u
k
u
u
u
u
u
k
u
u
u
u
u
u
k
k
u
u
u
u
u
k
u
k
u
k
u
u
k
k
k
k
u
u
k
u
k
u
k
u
u
u
u
k
u
u
u
k
u
k
u
u
k
k
u
u
k
k
k
k
k
u
u
k
u
k
u
k
k
u
k
u
u
k
k
k
k
k
k
k
u
k
k
k
u
k
u
k
u
u
u
u
u
k
k
u
k
k
u
k
k
u
k
k
u
k
k
u
k
k
u
k
u
k
u
k
u
u
k
u
k
u
k
k
u
u
u
k
k
u
u
k
u
k
k
u
k
u
u
u
u
k
u
u
k
k
k
u
u
k
u
k
k
u
u
u
k
k
u
u
u
u
u
k
k
u
u
u
u
u
k
u
k
u
k
u
u
u
u
u
u
u
k
u
k
u
u
k
k
u
u
u
k
k
u
u
u
u
u
u
u
u
u
u
u
u
u
u
u
u
k
u
u
u
k
k
k
k
k
u
u
k
k
k
k
k
u
k
u
u
k
k
u
k
u
u
u
k
k
u
k
k
u
u
k
k
k
k
u
u
u
k
k
k
u
k
u
u
u
k
k
u
k
u
u
k
k
k
k
k
u
k
u
u
k
u
u
u
u
k
u
u
u
u
u
k
u
u
u
u
k
k
u
u
u
k
u
k
k
u
k
u
u
k
k
u
k
k
k
u
u
u
k
u
u
k
k
u
u
k
k
u
k
k
k
u
k
k
u
u
k
u
u
k
k
u
u
u
k
k
u
k
u
u
k
k
u
u
u
u
k
u
u
u
k
u
u
u
u
k
k
k
u
u
k
u
k
k
k
u
k
k
k
k
u
k
u
k
u
u
k
k
k
u
k
k
k
k
u
k
u
k
u
u
u
u
u
u
k
u
u
u
k
k
k
k
k
k
k
k
k
u
k
k
u
k
u
u
k
k
k
u
k
u
u
u
u
u
k
k
u
k
u
k
u
k
u
k
k
k
k
k
u
u
k
k
k
u
k
u
u
u
k
u
k
u
k
u
u
u
u
k
k
u
k
k
u
u
k
u
k
u
u
u
u
u
u
u
k
k
u
u
k
u
k
k
k
k
u
u
k
u
k
u
k
k
u
k
k
u
u
u
k
u
u
k
u
k
u
u
k
u
k
k
k
k
u
k
u
k
u
u
k
k
k
k
k
u
k
k
u
k
u
u
u
u
u
u
u
k
u
k
k
k
u
k
u
k
k
k
k
u
u
u
k
u
k
u
u
k
u
u
u
u
u
k
u
u
u
k
k
u
u
k
u
u
u
k
k
u
k
k
u
u
u
u
u
u
k
k
k
u
k
k
u
u
u
k
u
u
k
k
u
k
k
k
u
k
u
k
u
u
u
u
k
k
k
k
u
u
k
u
k
k
k
u
k
k
u
u
k
u
k
u
k
k
k
k
u
u
u
k
k
u
k
k
k
k
u
k
k
k
u
u
k
u
u
k
u
u
u
k
k
k
k
u
k
k
u
u
k
u
u
u
u
u
k
u
u
u
k
u
u
u
u
u
k
u
u
u
u
u
u
u
k
k
k
k
u
u
u
k
k
k
u
k
k
k
u
u
k
u
u
u
u
k
k
k
k
u
u
u
k
k
u
u
u
k
u
u
k
k
k
u
k
u
k
k
u
k
u
u
k
u
u
k
u
u
u
u
k
k
u
k
u
u
k
u
k
k
k
k
k
u
k
u
u
u
u
u
k
u
k
u
k
u
k
k
u
u
u
k
u
u
u
k
u
u
u
k
k
u
k
u
k
u
u
u
k
u
u
k
u
k
k
k
u
u
u
u
u
u
k
u
k
k
u
k
u
u
u
k
u
k
u
u
u
u
k
k
u
k
k
u
k
k
u
k
u
u
u
k
u
k
u
u
k
u
k
u
u
k
u
u
u
k
u
u
k
u
k
k
u
u
k
u
u
u
k
k
u
k
u
k
u
k
u
k
k
u
u
k
u
u
u
u
k
k
u
k
k
k
u
k
u
k
k
u
k
u
u
u
k
u
u
u
k
k
u
k
k
u
u
u
u
u
k
k
u
u
k
u
u
k
u
u
u
k
k
k
k
u
u
k
u
u
k
u
k
u
k
k
k
k
u
k
u
u
k
u
k
k
u
u
k
k
u
u
u
k
u
k
u
u
k
k
u
k
k
u
k
u
u
u
u
k
k
u
k
k
k
k
k
k
k
k
k
k
k
k
u
k
u
k
u
u
u
k
u
k
k
u
k
k
u
k
u
u
k
k
u
k
k
k
k
k
u
u
u
u
k
k
k
u
k
k
u
u
k
u
k
k
u
k
k
k
k
k
u
u
k
k
u
u
k
u
k
u
u
k
u
k
k
k
u
k
u
k
k
u
k
u
u
u
u
k
u
k
u
k
u
u
u
k
u
u
k
k
u
k
k
u
u
u
u
k
u
u
u
u
u
k
u
u
k
u
k
k
u
u
u
u
u
k
u
k
u
k
k
k
k
u
u
k
u
u
k
u
u
k
k
u
k
u
k
k
u
u
u
u
k
u
u
k
k
k
k
u
u
k
k
u
u
u
k
k
u
k
u
k
k
k
k
k
k
k
k
u
u
u
k
u
k
k
k
k
k
u
u
k
u
k
u
u
k
u
k
k
u
u
u
u
u
k
u
u
k
k
k
u
k
k
k
u
k
u
u
u
k
k
u
k
k
k
u
u
k
k
u
k
k
k
u
u
k
u
u
u
k
u
k
u
k
k
u
k
u
u
u
k
u
u
k
u
u
k
k
k
u
k
k
u
k
u
u
k
k
u
u
u
u
k
u
k
u
k
u
k
u
u
k
u
u
u
u
k
u
u
u
u
u
u
k
u
k
u
u
k
k
k
u
u
k
k
u
u
k
u
u
k
k
u
k
k
k
k
u
k
u
u
u
k
u
k
u
k
k
k
k
u
u
u
u
k
k
u
u
k
k
k
k
u
k
k
u
u
u
u
u
k
u
u
u
u
u
u
u
k
k
k
u
k
k
k
u
u
k
u
k
u
u
u
u
u
u
u
k
k
k
u
k
k
u
k
k
u
u
u
u
k
k
u
u
u
u
k
k
u
u
k
k
k
k
u
u
u
k
u
k
u
k
u
u
u
u
k
k
u
k
k
k
k
u
k
u
u
k
k
u
u
u
u
u
u
u
u
k
u
k
k
u
u
k
u
k
k
u
u
k
k
k
k
k
u
u
k
u
u
u
k
k
k
u
k
u
u
k
k
k
u
u
u
k
k
u
u
u
u
k
k
k
k
k
u
u
k
u
u
k
u
k
k
k
k
u
u
k
u
k
k
k
k
u
k
k
k
u
u
u
k
k
k
u
k
k
k
u
u
u
k
k
k
u
u
u
u
u
u
k
u
u
u
k
k
u
k
u
k
k
u
u
u
u
u
k
k
u
u
u
u
u
u
u
u
u
k
u
k
u
u
u
u
u
k
k
u
u
u
u
k
u
k
k
u
u
k
k
u
u
k
k
k
u
k
k
k
k
u
k
u
u
k
k
u
u
u
k
u
u
u
u
k
k
u
u
u
u
u
k
k
u
k
u
u
u
k
k
u
u
k
k
k
u
u
u
u
k
u
k
u
k
k
u
u
u
k
u
u
k
u
k
k
u
k
k
u
k
u
u
u
u
u
u
k
k
k
k
k
k
k
k
u
k
k
u
u
u
u
k
u
u
k
u
u
k
k
k
k
u
u
u
u
u
k
u
k
k
u
k
u
k
u
k
k
u
k
u
u
k
u
u
u
u
k
u
k
k
k
u
k
k
k
u
k
k
k
u
k
u
k
k
k
u
k
u
k
u
k
k
u
k
u
u
k
k
u
u
u
u
u
k
k
u
u
k
k
u
u
u
k
k
u
k
k
k
u
u
k
k
k
k
u
u
u
u
u
u
k
u
u
k
k
u
k
k
u
k
u
u
k
u
u
k
k
k
u
k
u
u
u
u
k
u
u
u
k
u
u
u
u
u
k
u
k
k
k
u
k
u
u
u
k
k
k
u
u
k
k
k
k
u
k
k
k
k
u
k
k
u
u
k
k
k
k
u
k
u
u
u
k
k
u
k
k
k
u
u
u
u
k
u
u
u
k
k
k
k
u
k
u
k
k
u
u
k
k
k
u
u
u
k
k
u
u
k
k
u
u
k
u
u
k
u
k
k
u
k
k
k
u
k
u
u
u
k
u
k
u
k
u
u
k
u
k
k
k
u
u
k
u
k
u
u
u
k
u
k
u
u
k
u
k
u
k
u
u
u
u
k
u
k
k
k
k
u
u
u
u
u
k
u
k
u
k
k
u
u
k
k
k
k
u
k
u
u
k
u
k
u
u
u
k
u
k
k
u
k
u
k
u
k
k
u
u
k
k
k
k
k
k
u
u
u
k
u
k
k
k
u
k
u
u
u
k
u
k
u
u
k
u
k
k
k
u
u
u
u
k
k
k
u
k
u
k
u
u
k
u
u
u
k
u
k
k
k
k
u
k
u
u
k
k
k
k
u
k
u
u
u
k
u
u
u
u
u
k
k
k
u
k
k
k
u
k
u
u
u
u
k
u
k
k
u
u
k
u
k
u
k
k
k
k
k
k
u
k
u
u
u
k
u
u
u
u
k
k
u
k
u
k
u
u
u
k
k
u
k
u
k
u
k
k
k
k
k
u
k
u
k
u
u
k
k
k
k
u
u
k
k
k
k
k
k
u
u
k
u
u
k
u
u
u
u
u
u
k
u
u
k
u
u
u
k
k
k
k
k
u
u
u
u
k
k
k
u
k
k
k
u
u
u
k
k
k
u
u
k
k
u
k
u
u
u
k
k
u
u
k
u
u
k
k
u
k
u
k
u
u
k
k
u
u
u
k
u
k
u
k
k
k
k
u
k
k
u
u
k
k
u
k
k
u
u
u
u
k
k
u
u
k
u
k
k
u
k
u
u
k
k
k
u
u
u
u
u
u
k
u
u
u
k
u
u
u
u
k
k
u
u
u
k
k
k
u
u
k
k
u
k
u
u
u
k
k
u
u
k
u
u
k
u
u
k
k
u
u
u
u
k
k
u
k
k
u
k
u
u
k
k
u
k
k
u
u
u
k
u
u
u
k
u
u
u
u
u
k
k
k
u
k
u
k
k
u
u
u
u
u
u
k
k
u
k
k
u
k
k
u
k
k
u
k
u
u
u
k
k
k
u
k
k
k
k
k
u
k
u
k
u
k
u
u
u
u
k
k
k
u
k
u
u
u
k
k
k
k
k
k
u
u
k
k
u
u
u
u
u
u
k
k
k
u
k
u
u
k
k
k
k
k
u
u
k
k
u
k
k
k
k
k
k
u
u
k
u
k
k
k
u
k
u
k
u
u
u
u
k
k
k
k
k
u
u
k
u
k
k
k
u
k
u
k
k
u
k
u
u
u
k
u
k
k
u
u
k
k
k
u
k
u
k
k
u
u
u
u
u
k
u
u
u
u
k
k
u
u
u
k
k
u
u
u
u
u
u
k
k
u
k
u
k
k
k
k
k
u
k
k
u
u
u
u
u
k
k
u
u
u
u
u
k
u
u
k
u
u
u
u
u
k
k
k
u
k
u
u
u
u
u
u
u
k
u
k
k
k
k
u
u
u
k
k
k
u
k
k
k
k
k
u
u
u
u
u
u
u
u
u
k
k
u
u
u
k
u
u
k
u
k
u
u
k
k
k
u
k
k
k
k
u
u
u
k
u
u
k
u
k
u
k
u
k
u
k
u
u
u
u
k
k
k
k
u
k
u
k
k
u
u
k
u
k
k
k
u
u
u
k
u
u
u
u
k
u
k
k
u
k
k
k
k
u
u
u
k
k
u
u
k
k
k
u
u
u
u
u
k
k
u
u
u
k
u
u
u
k
k
k
k
k
u
k
k
u
u
k
u
k
k
u
k
u
u
k
k
u
k
k
k
k
u
k
u
u
u
u
k
k
k
u
k
k
u
k
k
k
u
u
k
u
u
k
u
u
k
u
u
u
k
k
u
k
u
u
k
u
k
u
u
k
k
k
k
u
u
u
k
k
k
u
u
k
u
u
u
k
k
k
k
k
u
u
k
k
k
u
u
k
u
k
u
k
u
u
u
u
k
k
u
u
u
u
k
u
k
k
u
k
u
u
k
u
k
u
u
k
u
u
k
k
u
u
u
u
u
u
k
u
u
k
u
u
k
k
u
k
k
u
k
k
k
k
k
u
k
k
u
u
u
k
u
u
k
k
k
k
k
k
u
k
k
u
k
u
k
k
k
u
u
k
k
k
k
u
k
u
k
k
u
k
u
u
k
k
u
k
k
u
u
u
u
u
k
k
u
k
u
k
u
k
u
k
u
k
k
k
k
u
k
k
k
k
u
u
k
k
u
u
k
k
k
u
k
k
k
k
k
k
u
u
k
k
u
k
k
u
u
k
u
k
u
k
u
u
k
k
k
u
u
k
k
u
u
k
k
k
u
u
k
u
u
k
u
u
k
k
u
u
u
u
k
k
u
k
u
k
k
k
u
u
u
k
u
k
k
u
k
k
u
u
k
k
k
u
k
u
k
u
k
k
k
u
k
u
k
u
u
k
u
u
u
k
k
k
k
u
u
u
u
k
u
k
k
k
u
k
k
u
u
k
k
k
u
u
k
u
k
k
u
k
u
u
k
k
k
k
u
u
k
u
k
u
k
u
u
u
u
u
k
k
k
u
u
u
k
k
k
k
k
k
k
u
k
u
u
u
k
k
k
u
k
k
k
u
k
k
u
k
k
k
u
u
k
k
u
k
u
k
k
k
k
u
u
k
u
k
u
k
u
u
k
k
u
u
k
k
u
k
u
u
k
k
k
u
k
u
k
u
k
u
k
u
u
k
u
u
u
u
u
u
u
k
u
k
u
u
k
k
k
u
u
k
k
u
u
k
u
k
k
k
k
u
u
u
u
k
k
k
u
u
u
k
k
k
k
k
u
u
k
k
k
u
u
u
k
u
k
u
u
u
k
u
k
u
u
u
u
u
u
k
k
k
u
k
k
k
u
u
k
u
k
k
k
u
u
u
u
k
u
u
u
k
k
k
k
u
u
u
k
k
k
u
k
k
k
k
u
k
k
u
u
k
k
u
u
k
u
u
u
k
u
k
u
k
k
u
u
k
k
u
u
u
k
k
u
k
k
u
k
u
u
k
k
u
k
u
u
k
k
u
k
k
k
k
u
k
k
u
k
k
k
u
k
k
k
k
k
u
u
u
k
u
u
u
k
k
u
k
k
k
k
u
k
u
u
k
k
u
k
u
k
u
k
k
u
u
k
k
u
k
u
k
u
u
u
k
u
k
k
u
k
u
k
k
u
u
k
u
k
u
k
u
k
k
k
k
k
k
u
k
u
u
u
u
k
k
u
u
u
k
k
k
u
u
u
k
k
u
k
u
u
u
u
k
u
u
k
u
k
u
u
u
u
k
k
k
k
u
k
k
u
u
k
k
k
u
k
u
k
k
k
k
k
k
k
k
u
u
k
k
u
u
k
k
u
k
k
k
k
u
k
k
u
k
u
k
k
k
k
k
u
k
u
u
u
u
u
k
k
u
k
u
u
k
k
k
u
u
k
k
k
k
u
k
u
u
u
k
k
u
u
k
u
u
u
k
u
u
k
u
u
k
u
u
k
u
k
u
u
k
k
u
u
u
u
k
k
u
k
k
u
k
k
u
k
k
u
u
k
k
k
k
u
u
k
k
u
k
k
k
u
k
u
k
k
u
k
u
u
u
k
k
k
u
k
u
u
k
k
k
k
k
u
k
u
k
k
k
u
u
u
u
k
u
u
u
k
k
u
k
u
u
k
u
u
u
u
k
u
u
u
u
k
u
u
k
k
k
k
u
u
u
k
u
u
k
u
k
u
u
k
u
k
k
k
u
u
k
u
u
k
k
u
k
k
k
k
k
u
k
u
u
u
k
k
k
k
k
k
u
k
k
k
u
u
k
u
u
u
u
u
u
u
u
u
u
k
k
u
k
u
k
u
u
k
u
u
k
k
k
k
k
k
u
u
k
u
k
u
u
k
u
u
u
u
u
u
k
u
k
k
k
u
u
u
k
u
k
u
k
u
u
k
k
u
k
u
u
u
u
u
u
u
k
k
k
k
k
u
k
u
k
u
u
k
u
u
k
k
k
u
k
u
u
k
k
k
k
k
k
u
u
k
u
u
k
u
k
u
u
u
u
k
k
u
k
k
u
k
k
u
u
k
k
u
k
u
u
k
u
u
u
k
u
u
u
k
u
k
u
k
k
u
u
u
u
u
u
u
u
k
k
k
u
k
k
u
u
u
u
u
k
k
u
u
u
u
u
u
u
u
u
k
k
k
k
u
k
u
u
k
k
u
u
k
u
u
k
u
k
k
u
u
u
k
u
k
u
u
k
k
k
u
k
k
k
u
k
u
k
k
u
k
u
u
u
u
u
k
u
u
u
u
u
k
u
k
k
k
k
k
u
k
k
k
u
u
u
k
u
u
k
k
k
u
k
u
u
k
u
u
k
u
u
k
u
k
u
k
u
u
u
k
u
k
k
k
u
u
u
k
k
k
u
k
k
u
k
k
u
u
u
u
u
k
u
u
k
k
k
k
k
u
k
u
u
u
u
k
k
k
u
k
k
k
k
u
k
u
u
u
u
u
u
u
u
k
k
u
k
u
k
k
u
k
k
u
u
k
u
u
u
u
k
u
u
u
k
k
k
u
k
u
u
k
k
u
k
u
u
u
u
k
k
u
u
k
k
u
u
u
k
u
k
k
k
k
u
u
u
k
u
k
u
k
u
k
k
u
u
k
k
k
u
u
k
u
k
k
k
k
u
k
k
k
u
k
k
k
u
k
k
u
u
u
u
k
u
u
k
k
u
u
u
k
k
k
u
k
u
u
u
k
k
k
k
k
k
k
k
u
u
u
u
k
k
k
u
u
u
k
u
k
u
u
u
k
k
u
k
k
u
k
u
u
k
u
u
k
u
u
u
k
k
u
u
u
u
k
k
u
k
k
u
u
u
u
k
k
k
u
k
k
u
k
k
u
u
u
u
k
k
u
k
k
u
u
k
k
u
k
u
u
k
u
k
u
k
u
k
k
k
k
u
u
u
k
u
u
u
u
k
k
u
k
k
k
k
k
u
k
u
u
u
u
k
k
k
k
k
k
u
u
u
k
u
k
u
u
u
k
u
k
k
u
u
u
k
k
k
k
u
k
k
k
u
u
u
u
k
k
k
u
u
k
k
k
k
k
k
u
k
u
k
u
u
u
u
u
k
k
k
u
k
k
u
k
k
k
k
k
u
k
u
k
u
k
k
k
k
u
u
u
k
u
u
u
u
k
u
u
u
k
u
u
u
k
u
k
k
u
k
k
u
k
k
k
u
k
u
u
k
u
k
k
u
u
k
u
u
u
k
u
k
k
u
u
u
u
u
u
u
k
k
u
u
k
k
k
k
k
u
u
u
k
k
k
u
k
k
u
u
u
k
k
k
u
u
k
u
k
k
u
k
u
k
k
k
u
k
u
u
k
k
k
u
k
k
k
k
k
u
u
u
k
u
u
u
u
u
u
k
u
k
u
u
u
k
u
u
u
u
u
k
u
k
k
k
u
u
u
k
u
k
u
u
u
k
k
u
u
k
u
u
u
u
u
k
u
u
k
u
u
u
k
u
u
k
k
k
u
k
k
k
u
u
u
u
k
u
u
k
u
k
u
u
u
u
k
u
k
u
k
k
k
k
u
u
k
k
k
k
k
k
k
k
k
k
u
k
k
u
u
k
u
u
u
u
u
u
u
u
u
k
k
u
k
u
k
k
k
u
u
k
u
k
k
u
u
u
u
u
k
k
u
u
u
u
k
u
k
u
k
u
u
u
k
u
u
k
u
k
k
u
k
u
k
k
u
k
k
u
k
u
k
u
u
u
k
k
k
u
k
k
u
k
k
k
k
u
u
k
u
u
k
u
u
u
k
u
k
u
u
k
k
u
k
u
u
u
k
k
u
u
u
k
u
u
k
k
k
k
k
u
u
k
k
u
k
k
u
u
k
u
u
u
u
k
u
u
k
u
k
k
k
k
u
u
k
k
k
k
u
k
u
u
u
k
u
k
k
k
k
k
u
k
k
u
k
u
u
u
u
k
k
u
k
u
u
k
u
k
u
k
k
u
k
u
k
u
u
u
k
k
u
u
u
u
u
k
k
u
u
k
u
u
u
k
u
k
u
u
k
k
u
k
k
u
u
u
k
k
k
k
u
u
u
u
k
u
u
u
u
k
k
k
k
k
k
u
k
k
k
u
k
u
u
k
u
k
u
u
k
k
k
k
u
k
k
k
u
u
k
k
u
u
k
k
u
u
u
k
k
u
k
k
k
u
u
k
u
k
u
u
u
k
k
u
u
u
u
u
u
u
u
k
k
k
k
u
u
u
u
u
k
k
u
u
u
u
k
u
u
u
k
u
k
u
k
u
k
k
k
k
k
k
u
k
k
k
u
k
u
k
k
u
k
k
k
k
u
k
u
k
k
u
u
u
k
u
k
u
u
u
k
u
u
u
k
k
k
u
k
k
k
k
k
u
u
u
k
k
k
u
u
k
k
u
k
u
k
u
u
u
k
u
u
k
u
k
u
k
k
k
u
k
k
k
k
u
u
u
u
k
k
k
u
k
u
k
u
u
u
u
k
u
u
u
k
u
u
u
k
k
u
k
u
k
u
u
u
k
k
k
k
k
u
u
u
u
u
k
k
k
k
u
k
u
k
u
k
k
u
u
u
u
k
k
k
u
k
k
u
k
k
k
u
k
k
k
u
u
u
k
k
k
k
u
k
u
k
k
u
u
k
u
k
u
k
k
k
k
k
u
k
k
u
k
k
u
k
u
u
k
u
u
u
k
u
k
k
u
k
u
k
k
k
k
u
u
k
k
u
k
u
u
k
u
u
u
k
u
u
k
k
u
k
u
k
k
u
u
k
k
u
k
k
k
u
u
k
u
u
k
k
k
k
u
u
u
k
k
k
u
k
u
k
u
u
k
k
k
u
u
k
u
k
u
k
k
k
k
u
k
k
u
u
u
u
k
k
u
u
k
k
u
k
k
u
k
k
k
k
k
u
k
u
u
u
u
u
k
k
k
u
u
k
k
u
u
k
u
u
k
k
u
k
k
k
u
k
k
k
u
k
u
k
u
u
u
k
u
k
u
k
u
k
u
k
u
u
k
u
u
u
k
k
k
k
u
k
k
k
k
u
k
u
u
k
u
k
k
k
u
k
u
u
u
k
u
k
k
k
k
k
u
u
u
u
k
k
k
k
u
k
k
k
k
u
u
u
k
k
k
k
k
k
u
u
u
k
u
u
u
u
k
k
k
u
u
k
k
k
u
k
u
k
u
u
k
u
k
u
u
k
k
u
k
k
u
k
k
u
u
k
u
k
u
u
u
k
u
u
u
k
k
k
k
u
u
k
k
u
k
k
u
u
k
u
u
u
k
k
u
k
k
u
u
u
k
k
u
k
k
k
u
k
u
u
u
k
u
u
k
u
k
k
k
k
u
u
k
k
u
k
u
u
k
u
k
u
u
k
k
k
k
u
u
u
k
k
k
k
k
k
u
k
u
u
k
k
k
k
k
u
k
k
k
k
u
k
u
k
k
u
k
u
k
u
u
u
k
u
u
k
k
u
u
k
u
u
u
k
u
k
u
k
k
u
k
u
u
k
u
k
k
k
k
k
u
u
k
k
k
k
k
k
k
u
u
k
k
u
k
u
k
u
u
k
u
k
k
k
k
u
u
u
u
u
u
u
u
k
u
u
k
k
u
u
k
u
u
u
k
k
k
u
u
u
k
u
u
k
k
k
k
k
u
k
u
k
u
k
u
k
u
u
u
u
k
u
u
k
k
u
k
u
k
k
u
k
k
k
k
u
k
u
k
u
u
u
k
u
u
u
u
u
k
k
u
u
u
u
k
u
u
u
k
k
k
k
k
k
u
u
u
k
u
u
k
u
u
u
u
k
k
k
u
k
k
u
k
k
u
k
u
u
u
k
k
k
u
u
k
u
u
k
u
k
k
u
k
k
k
u
k
u
k
k
u
k
u
k
u
k
k
k
u
k
k
u
k
u
k
u
k
k
k
u
k
u
k
u
k
k
k
u
k
k
u
u
k
k
u
k
u
u
u
k
k
k
k
u
k
k
u
u
u
k
u
k
k
k
u
k
u
k
k
u
u
k
u
u
k
u
u
u
u
k
u
u
u
u
k
k
u
u
u
u
u
k
k
k
k
u
u
u
u
u
k
k
k
k
k
u
k
k
k
u
k
u
k
u
u
u
k
u
u
k
u
k
k
u
u
k
k
k
k
k
k
k
k
u
u
k
u
u
u
u
u
k
u
k
u
k
u
k
k
k
k
u
u
u
k
u
u
u
k
k
u
u
u
u
k
u
k
k
k
u
u
u
k
k
u
k
u
k
u
u
k
k
u
u
k
u
u
u
k
u
u
u
u
u
u
k
k
u
k
u
k
u
k
u
u
k
u
u
k
k
u
u
k
k
u
u
u
u
u
k
k
k
u
k
k
k
k
u
k
k
k
k
k
k
k
u
u
k
u
k
u
u
u
k
k
k
u
u
k
u
u
u
u
k
u
u
u
k
k
u
k
u
k
k
k
u
u
u
u
u
k
u
u
u
u
u
u
u
k
k
k
u
u
u
u
k
u
u
u
k
k
k
u
u
k
u
k
u
k
u
k
u
k
k
k
k
k
k
k
u
k
u
u
u
u
k
k
u
u
k
k
k
k
k
u
k
k
k
u
k
u
u
u
k
k
u
u
k
u
k
u
k
u
k
u
k
k
u
k
u
u
u
k
k
u
u
k
k
k
u
k
u
k
u
u
u
k
k
k
u
u
u
k
u
u
u
u
k
k
k
u
k
k
k
u
k
k
k
k
u
u
u
u
k
k
u
u
k
k
u
k
k
u
k
k
u
k
k
k
k
u
k
u
u
k
k
u
k
u
k
u
k
k
u
k
k
u
u
k
k
u
k
u
u
k
k
u
u
u
k
k
u
k
u
k
k
k
u
k
k
k
u
u
k
u
k
k
u
k
k
k
k
u
u
k
k
u
k
k
u
k
k
u
k
k
k
k
u
u
u
k
u
u
k
u
k
k
k
u
k
k
u
u
u
u
k
k
u
u
u
k
u
u
k
k
k
u
u
k
k
k
u
k
k
u
u
k
u
u
u
k
k
k
u
u
k
u
u
u
u
u
k
u
u
u
u
u
u
k
u
u
u
k
k
k
u
u
k
u
u
k
u
u
k
u
k
k
u
u
u
u
u
k
k
u
u
k
k
k
k
u
u
k
u
k
k
k
k
k
u
k
k
u
k
k
k
k
u
k
u
u
k
k
u
u
k
k
u
k
u
k
u
k
u
u
u
k
u
u
u
u
k
k
k
k
u
u
u
u
u
u
k
u
k
u
k
u
u
u
u
u
u
k
u
k
u
k
k
k
k
k
k
u
k
k
u
u
k
k
u
u
k
k
k
k
u
u
u
u
k
k
k
u
k
k
k
u
u
k
k
k
u
k
k
k
k
k
u
k
k
u
u
k
k
u
u
u
u
u
k
k
u
u
u
u
u
k
k
u
k
k
u
k
k
u
k
u
k
k
u
u
k
k
k
k
k
u
u
u
u
u
u
k
k
u
u
u
u
k
k
k
k
u
u
k
u
u
u
u
u
u
u
u
u
k
u
u
k
u
k
k
u
k
k
u
k
k
u
k
u
k
u
k
u
u
k
k
u
u
u
k
u
k
k
u
u
u
u
u
u
k
k
u
u
u
u
k
k
u
k
u
k
u
u
k
k
k
u
u
k
u
k
k
u
u
u
u
k
u
k
u
u
u
k
k
u
u
k
u
k
u
k
k
u
u
k
k
k
u
u
u
u
k
u
u
k
u
k
u
k
u
k
u
k
k
k
u
k
k
k
u
u
u
k
u
u
k
u
k
u
k
u
u
k
u
k
k
k
k
u
k
k
u
k
u
u
k
u
u
k
u
u
u
u
u
k
k
k
u
u
u
k
k
k
k
u
k
u
u
k
u
k
k
k
u
k
u
u
u
u
u
k
u
u
u
u
k
u
u
k
u
k
u
u
u
u
k
u
u
k
k
k
k
u
u
u
u
k
u
k
k
k
u
k
u
u
k
k
k
u
k
u
u
u
u
k
k
u
k
k
u
u
k
u
u
k
k
k
k
u
u
u
u
u
u
u
k
u
u
u
k
k
k
u
u
u
k
u
u
k
k
k
u
k
u
k
k
u
u
k
u
u
u
u
u
k
u
u
k
u
u
k
k
k
k
u
k
u
u
k
u
k
k
k
u
u
k
k
u
u
u
u
u
u
u
u
u
u
k
k
k
k
u
k
k
k
u
k
u
k
k
k
u
k
k
u
k
u
u
u
u
u
k
u
u
k
k
u
k
u
u
u
k
k
k
k
u
k
k
k
u
u
u
k
u
k
u
u
u
k
k
k
k
k
u
u
u
u
k
k
k
k
k
k
u
u
u
k
k
k
u
u
u
k
u
u
u
u
k
k
u
u
k
k
u
u
k
u
k
u
u
u
k
u
k
u
k
k
u
k
u
u
u
u
k
k
k
u
u
u
u
k
k
u
k
u
k
u
u
u
u
k
k
u
u
u
u
u
k
u
k
k
u
u
u
k
u
k
k
k
u
k
u
u
u
k
u
u
k
k
k
k
k
k
k
u
u
u
k
u
u
u
u
u
u
k
u
k
k
u
k
u
u
u
u
k
u
k
k
k
k
u
u
u
u
k
u
k
u
u
k
k
u
k
u
u
u
u
k
u
u
u
k
k
k
k
u
u
u
u
u
k
u
k
k
u
u
u
k
k
k
k
k
k
k
k
k
k
u
u
u
k
k
u
k
u
k
k
u
k
k
u
k
u
k
u
u
u
u
k
u
u
k
u
u
k
k
k
k
u
k
k
k
u
u
u
k
k
u
k
k
k
u
k
k
k
k
u
k
u
k
k
u
k
u
u
k
u
k
k
k
u
u
u
u
u
k
k
k
u
k
u
k
u
u
u
u
k
k
k
k
u
u
u
u
k
k
k
k
k
u
k
k
u
u
u
k
k
k
u
u
u
u
u
u
k
u
k
u
u
u
k
u
u
k
u
k
u
u
u
u
k
u
u
u
k
u
k
k
k
k
u
k
u
k
k
u
u
k
k
u
u
u
k
k
u
k
k
u
k
k
u
k
u
u
u
k
u
k
k
u
k
u
u
k
k
u
u
k
u
u
k
u
k
k
k
k
k
u
k
k
u
k
k
u
k
k
u
k
u
u
u
u
u
u
k
k
u
u
u
u
u
u
u
k
u
k
k
u
k
k
k
u
k
k
k
u
u
k
u
k
u
u
k
u
k
k
u
u
k
u
k
u
k
u
k
u
k
u
k
u
k
k
u
u
k
u
k
u
u
u
u
k
u
u
u
u
k
u
u
u
u
u
k
k
u
k
k
k
k
k
u
k
k
k
u
u
u
k
k
u
k
u
u
k
u
u
u
k
k
u
k
k
u
k
u
u
k
k
u
u
k
k
k
k
k
u
u
u
u
k
k
u
u
k
k
k
u
u
k
u
k
u
u
u
k
k
u
k
u
u
k
k
k
k
u
u
u
u
u
k
u
u
k
k
u
u
k
u
k
u
u
k
k
u
k
u
u
u
k
k
k
k
u
k
u
u
u
k
k
u
k
u
u
k
u
u
k
k
k
k
k
k
k
u
u
k
u
u
u
u
k
k
u
k
u
k
k
k
u
k
u
k
k
u
k
u
k
u
u
k
u
k
k
k
u
k
k
k
u
u
u
u
k
u
u
k
u
u
k
k
k
u
u
k
k
k
u
k
u
u
u
u
k
k
u
u
u
k
u
k
k
k
k
u
k
u
u
u
u
u
u
k
k
u
k
u
k
k
k
u
k
k
u
u
u
u
u
u
u
u
u
u
k
k
k
u
u
k
u
u
k
k
k
k
u
k
k
u
u
k
u
u
u
k
k
u
k
k
u
u
k
u
u
u
k
u
u
k
u
k
k
u
u
k
u
k
u
k
k
k
u
k
u
k
k
u
u
k
k
k
u
u
k
k
k
k
k
u
k
k
u
k
u
u
u
u
u
k
u
k
u
k
u
u
u
u
k
u
k
k
k
k
u
k
k
u
u
k
u
k
k
k
k
k
k
k
u
u
u
k
k
k
u
k
u
u
u
u
k
k
u
u
u
u
u
k
u
k
k
k
k
k
u
k
k
k
k
u
u
u
u
k
k
k
u
k
k
k
u
u
u
k
k
k
u
k
k
k
u
u
u
u
k
k
u
k
u
k
u
u
k
u
k
k
k
u
k
u
u
k
k
k
u
u
k
u
u
k
k
k
k
u
k
u
k
u
k
k
k
u
u
u
k
u
u
u
k
k
u
u
k
u
k
u
u
k
k
u
k
k
k
k
k
k
u
u
k
k
u
k
k
u
k
k
u
k
u
u
k
k
u
u
u
u
u
u
k
k
u
k
k
u
u
u
u
k
u
u
u
k
k
u
k
u
u
u
u
k
k
k
k
k
u
k
k
u
k
u
k
k
k
u
u
k
u
u
k
k
u
u
u
u
k
k
k
u
u
u
k
u
u
u
k
u
k
u
u
u
u
k
u
u
u
u
k
u
u
k
u
k
u
u
k
k
k
u
u
u
k
k
u
k
u
k
k
k
u
u
k
u
k
u
u
k
u
u
k
k
u
k
k
k
u
k
k
u
u
u
k
k
u
k
k
k
k
u
u
u
u
u
u
u
k
u
u
k
k
k
k
k
u
u
k
k
k
k
k
k
k
k
k
u
u
u
k
k
u
k
k
u
k
k
k
k
u
u
u
u
u
k
k
u
k
u
k
k
k
k
u
k
u
u
k
k
k
k
k
k
k
u
u
k
u
k
k
k
k
k
k
u
k
k
u
k
u
u
u
u
k
k
k
u
k
k
k
u
u
k
k
k
u
u
k
k
u
u
k
k
u
u
k
k
k
k
k
u
u
u
k
k
u
u
k
k
u
k
k
k
k
u
u
u
k
k
k
u
k
k
k
k
k
k
k
k
u
u
k
u
u
u
u
u
k
k
k
k
k
u
u
k
u
u
k
u
u
u
u
k
u
u
k
k
k
u
u
k
k
u
u
k
u
u
k
u
u
k
u
u
u
k
k
k
k
u
k
k
u
u
u
k
u
k
u
u
k
k
u
k
k
k
u
k
u
u
k
k
u
k
k
u
u
k
k
k
k
u
k
u
u
u
k
k
k
u
u
u
u
k
u
k
u
u
u
u
u
k
u
u
u
u
k
u
k
u
k
k
k
u
u
k
u
u
k
k
k
k
u
k
k
u
k
u
u
u
k
u
k
k
k
u
u
k
k
u
k
u
u
u
u
u
k
k
u
k
u
u
u
k
u
u
k
u
k
k
u
u
k
k
k
u
k
u
u
k
u
k
k
u
u
k
k
k
k
u
u
u
k
u
u
k
k
u
k
u
k
k
u
k
u
u
u
u
u
k
u
k
u
k
k
k
u
k
u
k
k
k
k
u
u
k
k
k
k
k
u
u
u
k
k
u
u
u
u
u
u
u
u
k
k
u
u
u
u
u
k
k
u
k
u
k
k
u
u
u
u
u
k
k
u
k
k
k
u
k
k
k
u
u
u
u
u
u
u
u
k
k
k
k
u
k
k
k
k
u
u
u
k
k
k
k
u
u
k
u
u
u
k
k
k
u
k
u
k
k
u
u
u
k
u
k
u
k
u
u
k
u
u
k
u
k
u
k
u
u
k
k
u
u
u
u
u
k
u
k
u
u
k
k
k
u
u
u
k
u
k
k
u
u
u
k
u
u
k
k
k
u
u
k
k
u
k
u
k
k
u
u
u
k
u
k
k
k
k
k
k
k
u
k
u
u
u
u
u
k
u
u
u
k
u
k
k
u
u
u
u
u
k
k
k
u
u
u
k
u
k
u
u
u
u
u
k
u
k
u
k
u
u
k
k
k
u
k
k
u
k
u
u
u
u
u
u
u
u
k
u
u
u
u
k
k
u
u
u
u
u
k
u
k
k
k
u
k
k
u
k
k
k
u
u
u
u
k
k
k
k
u
u
u
u
k
u
k
u
u
k
u
k
u
u
u
u
k
u
u
u
k
k
u
u
u
u
u
k
k
k
k
k
u
k
u
k
k
k
u
k
u
k
k
k
k
k
u
k
k
k
k
k
k
u
k
u
u
k
u
u
u
u
k
u
u
k
u
u
k
u
k
k
k
u
k
u
u
k
k
u
u
u
k
u
u
k
k
k
u
u
u
u
k
k
k
u
k
k
k
u
k
u
k
k
k
k
k
u
u
k
u
u
u
k
k
k
k
u
u
u
u
u
u
u
u
u
u
k
u
k
k
k
u
k
u
k
k
k
k
u
u
k
k
u
u
k
k
k
u
u
k
k
k
u
u
u
u
u
k
k
u
k
u
u
u
k
u
u
k
u
k
k
u
k
k
k
k
u
u
u
k
u
k
u
u
k
u
k
k
k
k
k
u
k
u
u
k
u
k
k
u
u
k
u
k
u
u
k
k
u
k
k
k
k
k
k
u
k
k
k
u
u
k
k
u
k
u
u
u
k
u
k
k
u
k
k
k
u
u
u
u
u
k
u
u
k
u
k
k
u
k
u
u
u
k
u
k
u
u
k
k
u
k
k
k
u
u
k
k
k
u
u
k
u
k
u
u
k
k
k
u
u
u
k
u
u
k
k
k
k
k
k
k
k
u
k
k
u
u
u
k
k
k
u
k
k
u
u
u
k
u
k
k
u
k
k
u
k
k
u
u
u
k
u
k
u
k
k
u
u
k
u
u
u
u
k
k
u
u
u
k
u
k
u
u
u
u
u
k
k
u
u
u
u
k
u
u
u
k
u
k
k
u
u
u
u
k
u
k
u
k
k
k
k
k
k
u
k
k
k
u
u
u
k
u
u
u
u
k
u
k
k
u
u
k
k
u
k
u
k
k
k
u
u
k
u
u
k
u
u
k
u
u
k
u
k
k
u
k
k
k
u
k
u
u
u
u
k
k
k
k
u
k
u
k
u
u
u
k
k
u
k
u
k
k
u
u
k
u
k
k
u
u
k
u
k
u
k
k
u
k
u
k
u
k
k
k
k
u
k
k
k
k
k
k
u
u
u
k
k
u
k
k
k
u
u
k
u
k
u
u
u
u
u
u
u
u
u
u
k
u
u
u
u
k
u
u
k
u
u
k
k
k
u
u
k
k
u
k
u
k
k
u
k
k
k
u
u
k
u
u
u
k
k
k
u
u
u
k
k
u
u
k
k
u
u
k
u
u
u
u
u
k
u
u
u
k
u
k
u
k
u
k
u
k
u
k
k
u
u
k
k
k
u
k
k
u
u
u
k
k
u
k
u
u
k
k
k
k
k
k
u
k
k
k
u
k
u
k
u
k
k
u
u
u
k
u
u
k
k
k
u
u
u
u
k
k
k
u
k
u
k
k
k
k
u
k
u
k
u
k
u
k
k
k
k
u
u
k
u
k
k
k
k
k
k
k
u
k
k
k
u
u
k
u
k
k
u
u
u
k
k
u
u
u
u
k
k
u
u
u
k
u
k
u
k
u
u
k
u
k
u
k
u
u
u
u
k
u
u
u
u
u
k
u
u
k
k
k
u
k
k
u
k
k
k
u
u
u
k
u
u
k
u
u
k
k
k
u
k
k
u
k
u
u
u
k
u
u
u
k
u
u
k
u
u
u
k
u
u
u
k
u
u
u
u
u
k
u
u
u
u
k
k
u
u
u
u
u
u
k
u
u
k
k
k
k
k
k
k
k
k
k
u
k
u
k
k
u
u
u
u
u
u
k
k
k
k
u
k
k
k
k
k
k
k
u
u
k
u
k
k
u
k
u
u
k
u
k
k
k
k
k
u
k
k
u
k
k
k
u
k
k
u
u
k
u
u
u
u
u
k
k
k
k
k
u
k
u
u
u
u
k
u
u
u
k
u
k
k
u
u
u
k
k
k
u
u
k
u
u
u
u
u
k
k
k
u
u
k
k
u
k
k
u
k
u
u
k
k
k
k
u
k
u
k
u
u
k
k
k
k
k
u
u
u
u
k
k
k
u
k
u
u
k
u
u
k
k
u
u
u
k
k
u
k
k
u
k
k
u
k
u
k
u
u
k
u
k
k
k
u
u
u
u
u
k
k
k
u
k
u
u
u
u
u
k
u
k
k
k
u
u
u
k
u
k
k
k
u
u
u
k
k
u
k
k
u
k
u
k
k
k
k
u
u
k
k
k
u
k
k
k
u
k
k
k
u
u
k
u
u
u
u
k
u
k
k
k
u
u
k
k
k
u
k
u
k
k
k
u
u
k
u
k
u
k
u
k
k
k
k
k
k
u
u
u
k
k
k
u
k
u
u
u
u
k
u
k
u
u
u
u
k
u
k
u
u
k
k
k
k
u
u
u
k
k
u
k
u
k
u
k
u
k
k
u
k
k
u
u
k
k
u
u
k
u
u
u
k
k
u
k
k
k
u
u
u
k
u
u
k
u
u
u
k
u
u
u
k
k
u
k
u
k
k
u
u
u
u
k
u
u
u
k
k
k
u
k
k
k
u
u
k
u
k
u
u
u
u
k
k
u
k
k
k
u
k
k
u
k
k
u
k
k
u
k
k
u
u
u
k
u
k
k
u
u
u
k
u
k
u
u
k
k
k
u
u
u
k
u
u
u
k
k
u
k
u
k
u
u
k
u
u
u
k
k
k
k
k
k
u
u
u
u
k
u
u
k
u
u
u
k
k
u
u
u
u
k
u
u
u
k
k
u
k
u
u
k
k
u
k
k
u
k
k
u
k
k
k
k
k
u
u
u
k
u
u
k
k
k
k
u
k
k
k
u
u
k
u
u
k
u
u
u
u
u
k
k
k
k
k
k
u
k
u
k
k
k
k
k
k
k
u
u
k
k
u
u
u
u
u
k
u
k
u
u
u
u
u
k
u
u
u
u
k
k
k
k
u
u
u
k
k
k
k
u
k
k
k
u
u
k
u
k
k
u
k
k
u
k
k
u
u
k
k
u
u
u
u
k
k
u
k
u
k
u
u
u
k
k
u
u
u
k
k
k
u
k
k
u
u
k
k
u
k
k
u
k
u
k
u
k
u
u
k
k
u
u
u
k
k
u
u
u
k
k
u
k
k
u
u
k
k
k
k
k
u
u
k
k
k
u
u
k
k
u
k
u
k
k
k
u
u
k
k
k
k
k
u
u
k
u
u
k
u
k
k
k
k
u
u
k
k
u
u
u
k
k
k
k
u
k
k
u
u
k
u
k
u
k
u
u
u
k
u
k
u
k
k
u
k
u
k
u
u
k
k
k
k
u
k
k
k
k
k
k
u
u
k
k
u
u
k
u
u
k
k
u
u
k
u
u
u
u
k
u
u
u
k
u
u
u
u
k
k
u
u
u
u
u
u
k
u
k
k
k
k
k
k
u
u
u
u
k
k
k
k
k
u
k
k
k
k
k
k
k
u
u
k
k
k
u
k
k
u
k
u
k
k
u
k
k
u
k
u
k
u
u
u
k
u
u
k
u
k
k
u
u
k
k
u
u
u
k
k
k
u
u
k
u
u
k
u
u
u
u
k
k
u
k
u
k
k
k
k
k
k
u
u
k
u
k
k
k
u
u
u
k
u
u
u
u
k
u
k
u
u
k
k
u
k
k
k
k
u
k
k
k
k
k
u
k
k
k
u
k
k
k
k
k
k
k
u
u
u
u
k
u
u
k
k
k
k
k
u
k
u
u
u
u
k
u
u
u
k
u
k
u
u
u
k
u
k
u
u
k
u
k
k
u
k
u
u
k
k
k
k
u
u
u
u
k
k
u
k
u
k
k
u
k
u
k
u
k
u
u
u
u
u
u
u
u
u
u
u
k
k
u
k
u
k
u
u
u
k
u
k
u
u
k
u
k
k
u
k
u
u
u
k
k
k
u
k
k
k
k
u
u
u
k
k
k
k
k
u
u
k
u
k
k
u
k
k
u
k
k
k
k
u
u
u
u
k
k
u
k
u
u
k
k
u
k
k
u
k
u
u
k
u
k
u
k
k
k
u
u
k
u
k
u
u
u
k
u
u
u
u
u
k
u
u
u
u
u
k
k
k
u
k
u
u
u
k
u
u
k
k
k
k
u
u
u
u
k
k
k
u
k
u
k
k
u
k
k
k
k
u
u
u
u
k
k
u
u
u
k
u
k
u
k
k
k
u
u
u
u
k
k
k
k
u
u
k
u
u
k
k
u
u
k
u
u
k
k
u
u
u
u
u
u
k
k
k
k
k
k
k
u
k
u
u
k
u
k
k
k
u
k
u
k
u
u
u
u
k
u
k
u
k
k
k
k
u
k
u
u
u
k
k
k
u
k
k
u
k
k
k
k
k
u
k
u
k
u
u
u
u
k
k
k
u
k
u
u
k
u
k
u
u
k
u
k
k
k
k
k
u
u
k
u
k
u
k
u
u
u
k
k
u
k
k
u
k
k
k
k
u
u
u
k
u
u
k
u
k
k
u
u
u
k
k
k
k
u
k
k
u
k
u
u
u
k
k
k
k
k
u
u
u
k
k
k
k
k
u
u
u
u
k
u
u
k
k
u
k
u
k
k
u
k
k
u
u
k
u
k
k
u
k
k
u
k
k
u
u
k
u
k
k
k
u
u
k
u
k
u
k
k
k
k
u
u
u
u
k
u
u
u
u
k
k
u
k
u
k
k
k
k
u
k
k
k
u
u
k
u
u
u
u
u
k
u
k
k
k
k
k
u
u
k
u
u
k
u
u
u
k
u
k
k
k
k
u
k
k
k
k
u
k
k
k
u
u
k
u
k
u
u
k
u
u
u
k
k
u
u
k
k
k
k
k
u
k
u
u
k
k
u
k
k
k
u
k
k
k
u
k
k
k
u
u
k
k
u
u
u
u
k
k
k
k
u
u
u
k
u
k
u
k
k
u
k
k
u
u
k
u
k
u
u
k
u
k
u
u
k
u
k
u
u
u
u
k
u
u
u
u
u
k
u
u
k
u
u
k
u
u
k
u
k
u
k
u
k
k
k
k
k
k
k
k
u
u
k
u
k
k
u
u
k
u
u
k
k
u
k
k
k
u
k
u
u
u
k
k
k
k
u
u
k
u
k
u
u
k
k
u
u
u
k
u
k
u
u
u
k
k
u
u
k
u
u
u
k
k
k
u
k
k
k
k
u
u
k
k
k
u
k
k
k
k
u
k
k
k
u
k
u
u
u
k
u
u
k
u
u
k
u
u
u
u
u
k
k
u
k
u
k
u
u
k
k
u
u
u
u
k
u
u
u
u
k
k
k
k
k
u
u
u
k
k
u
k
u
k
u
u
k
k
u
k
k
k
k
k
k
k
u
u
u
k
u
u
k
k
k
k
k
k
u
k
k
u
u
u
k
k
u
u
k
k
k
u
k
k
k
k
u
u
k
k
k
k
u
k
k
k
u
k
k
k
k
k
k
u
u
k
u
u
u
k
u
u
k
k
k
u
u
k
u
u
k
k
u
k
u
u
k
u
k
u
k
u
k
u
u
k
k
u
k
k
k
k
u
u
k
k
u
k
u
k
u
u
k
u
k
k
u
u
k
u
k
u
k
k
u
k
k
k
k
u
u
k
k
u
u
k
u
k
u
k
k
k
u
k
k
k
u
u
k
k
k
k
k
k
u
u
u
u
k
k
k
u
u
u
u
k
u
k
u
u
u
k
k
k
u
k
k
k
u
u
k
k
u
u
k
k
k
u
u
k
u
u
u
k
u
k
u
u
k
u
k
u
k
u
u
u
u
k
k
k
u
u
k
k
u
k
k
u
u
k
k
k
u
u
k
k
k
k
k
u
u
u
u
k
u
u
u
k
k
u
k
u
u
u
u
u
k
k
k
k
k
k
k
k
u
u
k
u
k
k
k
k
k
u
k
k
k
k
k
k
k
u
k
u
k
k
k
u
k
k
k
u
k
u
u
k
k
k
k
k
u
u
k
k
k
u
k
u
k
k
k
k
u
k
k
k
u
u
k
u
u
k
u
u
k
u
u
k
k
k
u
u
u
k
u
u
k
k
k
k
u
u
k
k
u
u
k
k
u
k
u
u
k
k
u
k
u
u
u
k
u
k
k
k
u
k
u
u
u
k
u
u
u
k
k
u
k
k
u
u
u
u
k
k
k
k
k
u
u
k
k
u
u
u
k
k
k
u
u
u
k
u
u
k
u
k
u
k
u
k
k
u
u
k
u
k
k
k
u
u
u
u
u
u
k
k
u
u
k
u
k
k
k
k
k
u
u
k
u
u
u
k
k
u
u
k
k
k
k
k
u
k
u
k
k
k
u
k
u
u
u
k
k
u
u
u
k
u
k
k
k
u
k
k
u
u
k
u
u
k
k
u
u
u
u
k
u
k
k
k
u
u
u
u
k
u
k
k
u
u
u
k
k
u
k
u
u
k
u
u
u
k
u
u
k
u
k
k
u
k
u
k
k
u
k
u
u
k
u
u
u
u
u
u
k
k
u
u
k
u
k
u
k
u
u
k
k
u
k
k
u
u
k
u
u
k
k
k
u
u
k
k
k
k
u
k
u
u
k
u
k
k
u
k
u
k
u
k
u
u
k
u
k
u
u
k
u
u
u
k
k
u
u
u
k
k
u
k
k
u
k
k
u
u
k
u
u
u
k
u
k
u
u
u
u
k
u
k
k
u
u
k
k
k
u
u
u
u
u
k
u
k
u
u
u
u
k
u
k
k
k
u
u
u
u
k
u
k
u
u
k
k
k
u
k
k
u
k
k
u
u
k
u
k
u
u
k
k
k
k
k
u
k
k
u
u
u
u
u
k
k
k
u
u
k
k
k
u
u
u
u
u
k
u
k
u
k
k
k
u
k
u
u
u
k
k
k
u
k
k
u
u
k
k
u
u
u
u
u
u
k
u
k
k
k
k
u
k
u
k
k
u
k
k
k
u
k
u
k
k
u
k
u
k
k
k
k
k
k
k
k
u
k
u
k
k
u
k
k
k
u
u
k
u
k
k
k
k
u
u
k
u
k
u
k
k
u
u
u
k
k
k
k
k
u
k
k
k
k
u
u
k
k
k
k
u
k
k
k
u
u
k
k
k
k
k
k
u
k
k
k
k
k
u
k
u
u
u
u
u
u
k
k
k
k
u
k
u
k
u
u
u
k
k
u
u
u
k
u
k
k
u
u
k
k
k
u
k
u
u
u
u
k
u
u
k
k
u
k
u
k
k
u
u
u
k
k
u
k
u
k
u
k
k
k
k
k
k
k
u
u
u
k
k
u
u
u
k
k
k
k
k
u
u
u
k
k
k
u
k
u
k
k
u
u
u
u
u
u
u
k
u
u
u
k
k
k
u
k
k
k
k
k
k
k
u
u
k
k
u
k
k
u
k
k
u
u
u
k
k
k
u
u
u
k
k
u
k
u
u
k
u
u
k
k
u
u
u
k
k
u
u
u
u
k
u
u
k
k
k
u
k
u
u
k
u
k
u
k
k
k
k
k
u
u
u
u
k
u
k
k
u
u
u
k
u
u
u
u
u
k
k
u
u
u
u
u
u
k
u
u
u
u
u
k
u
k
u
k
u
u
u
k
k
k
u
u
u
u
u
k
u
k
k
k
u
u
k
u
k
k
u
k
u
u
k
u
k
k
k
u
u
u
k
u
u
k
u
u
u
u
u
u
k
k
u
u
u
u
k
k
u
k
u
u
u
k
k
k
u
k
u
k
k
u
k
u
u
k
u
u
k
u
u
u
u
u
k
k
u
u
k
u
k
k
k
u
k
k
u
u
k
u
k
u
u
k
k
u
k
u
u
u
k
k
u
k
k
k
k
u
k
u
u
u
u
u
u
k
u
k
u
k
k
k
u
k
k
u
k
k
k
k
u
u
u
k
u
u
k
u
k
u
u
u
u
k
u
k
u
k
k
k
k
u
k
u
k
k
u
u
k
k
k
u
u
u
k
u
k
u
k
k
k
k
k
u
k
k
k
k
k
u
u
k
k
k
k
u
u
k
u
k
u
u
k
u
u
u
k
k
k
k
u
u
k
u
k
u
k
u
k
k
k
u
k
k
u
k
u
k
u
u
k
u
k
k
u
u
u
u
k
k
k
u
u
u
k
u
u
k
k
u
u
u
u
u
u
k
u
u
k
u
k
u
u
k
u
k
k
k
k
u
k
u
u
u
u
k
k
u
k
u
k
u
k
u
k
k
u
u
u
k
k
k
k
u
k
k
k
u
u
u
k
k
u
u
u
u
k
u
u
u
k
k
k
k
u
u
k
k
u
k
k
k
u
k
u
k
k
k
u
u
u
k
k
k
u
k
k
u
k
k
k
u
u
k
u
k
u
u
u
u
k
k
k
u
u
u
k
u
k
u
k
u
k
u
k
u
u
u
u
k
k
u
k
k
u
u
u
k
k
u
u
u
k
k
u
u
k
u
u
u
k
u
k
k
u
u
k
u
k
k
u
k
k
k
u
k
k
u
k
u
u
u
u
k
u
k
k
k
u
k
k
k
u
u
k
k
u
k
k
u
k
k
u
k
k
u
k
k
k
u
k
u
k
k
k
k
u
k
k
k
u
u
u
u
u
u
k
u
u
u
u
u
u
u
u
k
k
u
k
u
k
u
k
u
k
u
u
u
k
u
u
u
k
u
k
k
k
u
k
k
k
k
u
u
k
u
u
u
u
u
k
k
k
k
u
u
k
u
k
k
u
k
k
k
k
k
u
k
k
k
k
u
k
k
k
u
u
u
u
u
k
k
u
u
k
u
k
k
u
u
k
u
k
k
u
k
k
u
u
u
k
k
u
k
k
u
u
k
k
k
u
k
u
u
k
k
k
k
u
k
k
k
k
k
k
u
u
k
u
k
u
k
k
u
k
u
k
u
u
k
u
u
k
u
k
k
u
k
k
k
k
u
k
u
k
u
u
u
k
k
u
k
k
u
u
u
u
k
k
u
u
u
u
k
u
k
k
k
u
k
u
k
u
k
u
u
k
k
k
u
k
u
u
k
k
k
u
u
k
k
u
u
k
u
k
k
u
k
k
u
u
k
u
u
u
k
k
u
u
k
k
k
u
u
u
u
k
u
u
k
k
u
u
k
k
u
u
k
k
u
k
u
u
u
k
u
k
k
k
k
k
u
k
k
u
u
u
u
u
u
k
u
u
k
k
u
k
k
k
k
k
u
k
u
u
k
k
k
k
k
u
k
k
k
u
u
u
k
k
k
k
k
u
k
u
k
k
k
k
k
u
k
k
u
u
k
u
u
u
u
u
u
k
k
u
u
k
u
u
u
k
k
k
k
u
k
k
u
k
u
u
k
k
k
u
u
k
u
u
u
u
u
u
k
u
u
u
k
k
k
u
k
k
k
u
k
u
u
u
u
u
k
u
u
k
k
u
u
k
k
u
u
u
k
k
u
u
u
u
u
k
k
u
k
u
u
k
k
k
u
u
u
u
k
k
u
k
k
u
k
k
k
k
k
k
k
k
u
u
k
k
k
k
u
k
k
k
k
k
u
k
u
k
u
k
u
u
k
u
u
k
k
k
k
k
u
u
k
k
k
u
u
k
k
k
u
k
u
k
u
k
k
k
u
k
u
u
k
k
k
k
u
u
u
u
k
k
u
k
k
u
k
u
u
k
k
k
u
u
u
u
k
k
k
u
u
u
u
u
u
u
k
u
k
u
k
u
u
k
u
u
k
k
u
k
u
k
k
k
u
k
k
u
k
u
u
u
k
u
u
u
k
u
k
k
k
u
u
k
k
k
u
k
u
k
k
k
u
u
k
k
u
u
u
k
k
u
u
k
k
k
k
k
u
k
u
k
k
u
k
u
u
k
k
k
u
k
u
k
k
u
u
k
k
k
u
k
u
u
u
k
k
u
u
u
u
u
k
k
k
k
k
u
u
k
k
u
k
u
u
u
u
k
u
u
u
k
k
k
u
k
k
k
u
k
k
u
u
k
k
k
u
k
k
u
k
u
u
k
k
u
k
k
u
u
u
u
u
u
k
k
k
k
u
u
u
u
k
k
k
k
u
u
k
k
u
u
u
u
u
u
u
k
k
u
u
k
k
k
u
u
u
u
u
k
u
u
u
u
u
k
k
k
u
k
k
k
k
k
u
k
u
u
k
u
k
k
u
k
u
k
k
u
k
u
k
k
k
u
k
k
k
k
k
k
u
u
k
u
k
u
k
u
k
k
k
u
u
k
k
k
k
u
k
u
k
u
k
k
u
k
u
u
u
k
k
u
u
u
k
u
k
k
u
u
u
k
k
k
u
k
k
k
u
u
u
k
u
k
k
k
k
k
u
k
k
k
k
u
u
u
u
u
k
u
k
u
u
k
u
k
k
u
k
u
k
k
u
u
k
k
u
u
k
k
u
u
k
k
u
u
u
u
k
k
u
k
k
k
u
u
u
u
u
u
k
k
k
k
k
k
u
k
k
u
k
u
u
u
k
u
u
u
u
u
k
u
k
u
k
k
k
u
u
k
k
k
k
u
k
k
k
k
u
u
k
u
k
u
k
k
k
u
u
k
k
u
u
k
k
u
k
u
u
u
u
k
k
k
u
u
k
k
u
u
k
u
k
k
u
u
u
u
u
k
k
k
k
u
u
u
u
u
u
u
k
u
u
u
k
k
u
k
k
k
k
u
u
k
k
k
u
u
k
k
k
k
u
k
u
k
k
k
k
u
u
k
k
k
k
u
u
k
k
k
k
u
k
u
k
k
u
u
u
u
k
k
k
k
u
k
u
u
k
u
k
k
u
u
k
u
u
k
k
u
k
u
k
k
k
u
k
k
u
u
k
u
k
k
u
u
k
u
k
k
k
k
u
k
u
k
u
k
u
u
u
u
k
u
k
u
k
k
u
u
u
k
k
u
k
u
k
u
u
u
u
u
k
u
u
k
k
k
u
k
k
u
u
u
u
k
u
k
k
u
u
k
u
u
u
k
u
k
k
k
k
u
u
u
k
k
k
u
k
u
k
u
k
u
u
k
u
u
k
u
k
u
k
k
k
u
k
k
k
k
k
k
u
k
k
u
u
u
k
k
u
k
k
k
u
u
k
u
k
k
k
k
k
u
k
k
k
k
k
k
u
u
k
u
u
k
u
k
u
k
k
k
u
u
k
k
u
k
k
k
u
u
u
k
u
k
u
u
u
k
u
k
u
u
u
u
k
u
k
u
u
u
k
u
k
k
k
u
u
k
u
k
u
k
k
u
u
k
k
k
u
k
u
u
u
k
k
u
k
u
u
k
k
k
k
k
u
k
u
u
u
u
u
u
u
u
k
u
u
u
k
u
u
k
u
k
k
k
k
k
k
k
u
k
k
k
u
k
u
u
k
u
u
u
k
k
k
u
u
k
k
u
u
k
k
k
u
u
u
u
u
k
k
u
u
k
u
u
k
u
u
u
k
k
u
u
u
k
u
u
u
k
k
k
u
u
u
k
k
u
u
k
k
u
u
u
u
u
k
k
u
u
k
k
k
u
u
u
k
u
k
k
u
u
k
k
u
k
u
u
u
u
k
k
k
u
u
k
u
k
k
k
k
k
u
k
u
k
k
u
k
k
k
u
u
k
k
u
k
u
u
k
u
u
k
k
u
k
u
k
u
u
u
k
k
u
u
u
k
u
u
u
k
u
k
k
u
u
u
u
k
k
k
u
u
u
k
u
u
u
u
u
u
k
u
u
u
u
k
k
k
k
u
u
u
u
k
k
u
k
u
u
k
k
u
k
u
u
u
k
k
u
u
k
k
u
k
u
k
k
k
k
u
k
k
k
k
k
k
u
k
u
k
u
k
k
k
k
u
k
k
k
k
u
u
k
k
k
k
k
k
k
u
k
u
k
u
k
k
u
u
k
k
k
k
u
u
u
u
u
u
u
u
k
k
k
u
k
u
k
k
k
k
u
u
k
k
k
u
u
k
u
k
u
k
k
k
k
u
k
k
u
u
u
k
u
k
k
k
k
u
u
u
k
k
k
u
k
u
k
u
u
u
k
k
u
u
u
u
u
u
k
k
k
k
u
k
u
k
u
u
k
u
u
u
k
u
u
u
k
u
k
u
u
k
u
u
k
k
u
k
u
u
u
u
u
k
u
u
k
k
k
k
u
u
k
u
u
k
k
k
k
k
u
k
k
k
u
k
u
k
k
u
k
u
k
u
u
k
k
u
u
u
k
u
k
u
k
u
u
k
u
k
u
k
u
u
k
u
k
u
k
k
k
u
u
k
k
u
u
k
k
u
u
k
k
k
k
u
u
k
u
u
u
k
k
u
k
u
u
k
u
k
u
u
k
u
u
u
u
k
u
u
u
k
k
u
u
k
k
u
k
u
k
u
u
u
u
u
k
u
k
u
u
u
u
u
u
k
k
k
k
u
k
u
u
k
u
u
u
u
k
u
k
u
k
u
u
k
k
u
u
u
k
u
k
u
k
k
k
u
u
u
k
k
k
u
u
k
k
u
k
u
k
u
k
k
u
k
u
u
k
u
u
k
u
k
u
u
k
k
u
u
u
u
u
u
u
k
k
u
u
u
k
u
u
u
k
k
u
u
u
k
k
k
k
k
k
k
k
k
u
u
k
k
k
k
u
k
k
k
k
u
u
u
u
u
u
u
k
u
k
k
u
u
k
u
u
u
k
k
k
k
u
u
u
u
u
k
k
k
u
k
u
k
u
k
k
u
u
u
u
u
k
u
k
k
k
u
k
k
u
u
u
u
u
u
k
k
u
k
u
k
k
u
k
k
k
u
k
k
k
k
u
u
u
u
k
u
k
u
u
k
u
u
u
u
k
k
k
u
k
u
u
k
u
u
u
k
u
u
k
k
k
u
k
k
u
k
u
u
u
u
k
k
u
u
u
k
k
k
u
k
u
u
u
u
k
u
k
k
u
k
u
u
u
k
u
k
u
u
k
u
u
u
k
k
k
u
u
k
k
u
u
k
u
k
u
u
u
u
u
k
k
k
k
k
k
u
k
k
u
k
u
u
k
u
u
k
k
u
k
u
u
u
u
k
u
u
k
u
u
u
u
u
k
k
u
u
u
k
k
k
u
k
u
k
k
u
k
u
k
u
k
k
k
k
u
u
k
k
k
k
k
k
u
k
k
u
k
u
u
u
k
k
k
k
k
u
u
u
k
k
k
u
k
k
u
k
k
u
k
u
u
k
k
u
k
u
u
u
k
u
u
u
u
k
u
k
k
k
u
k
k
k
k
u
k
u
u
k
k
k
u
k
k
u
k
u
k
u
u
u
k
u
k
u
k
k
u
k
u
u
u
k
u
u
k
k
k
u
u
u
u
k
k
u
u
k
k
k
k
u
u
u
u
u
u
u
u
k
u
u
k
k
k
u
u
k
k
k
u
u
k
k
u
u
k
k
u
k
u
u
u
k
k
u
u
u
k
u
k
u
u
u
u
u
k
u
k
k
u
u
k
u
u
u
u
k
k
u
u
u
u
u
k
k
u
k
u
k
k
k
u
u
u
u
k
u
k
k
k
k
k
u
k
k
u
u
u
u
u
u
k
u
u
u
u
u
k
u
k
k
u
k
k
k
k
k
u
k
k
k
k
k
k
k
k
u
u
u
u
k
k
k
u
u
k
u
u
k
u
u
k
u
u
k
k
u
k
k
k
k
u
u
k
u
u
k
u
k
k
u
u
k
u
k
k
k
u
k
k
k
k
u
k
u
k
k
k
u
u
u
u
u
k
u
k
k
k
k
k
k
u
u
k
k
k
k
u
u
u
k
k
k
k
k
u
k
u
k
k
k
u
u
u
k
k
k
u
u
u
k
k
u
u
k
u
u
k
k
u
k
u
k
u
u
u
k
u
k
k
u
u
k
u
u
u
u
k
k
u
u
k
u
u
u
u
k
k
k
u
k
u
u
u
u
k
u
u
u
u
k
u
k
u
k
k
k
u
u
u
u
u
k
k
k
k
u
u
k
u
k
u
u
u
u
k
k
u
k
u
u
u
u
u
u
k
k
k
u
k
u
u
u
k
k
k
u
u
k
u
u
k
u
u
u
u
u
u
k
u
k
u
k
u
k
k
u
k
u
k
u
k
u
u
u
k
k
k
u
u
k
u
k
u
u
u
u
u
k
u
k
k
u
k
u
k
u
u
u
k
k
k
k
k
k
u
k
u
u
u
k
k
u
u
u
u
u
u
k
u
k
k
k
u
u
k
k
k
k
k
k
k
k
u
k
k
u
k
u
k
u
k
u
u
k
k
k
u
k
u
u
k
u
u
k
k
k
u
k
u
k
u
k
u
k
u
u
k
k
u
k
k
k
k
u
k
k
k
k
k
u
k
u
u
u
u
u
u
u
u
u
k
u
u
u
u
k
u
k
k
u
u
u
k
k
k
k
u
k
u
k
k
u
k
k
u
k
u
k
k
u
k
k
k
k
k
u
u
u
k
u
k
k
u
u
u
u
k
k
k
u
k
u
u
k
k
u
u
u
u
k
u
k
u
k
u
u
u
u
u
u
k
k
u
u
k
u
k
k
k
k
u
u
u
k
k
k
u
u
u
u
k
u
u
u
k
k
k
k
u
k
u
u
u
u
u
k
k
u
u
k
k
k
k
u
u
u
k
k
u
k
u
u
k
u
u
u
u
k
k
k
u
k
k
k
u
u
u
u
k
u
u
u
u
k
u
u
k
k
k
u
k
u
k
u
k
k
u
u
u
k
k
k
k
u
u
k
u
u
k
k
u
k
u
u
u
u
k
k
u
u
u
k
u
u
u
u
u
k
u
k
k
u
u
u
u
u
k
u
k
u
k
k
u
k
k
u
u
k
u
k
u
k
k
k
u
u
u
u
k
u
k
k
k
u
u
u
k
u
u
u
u
k
u
u
u
k
k
u
k
u
k
k
k
u
u
u
u
k
u
u
u
u
k
u
k
k
k
u
u
u
k
k
k
k
k
u
k
k
u
k
k
k
u
u
k
u
u
u
u
u
u
k
k
k
u
u
k
k
k
k
k
u
u
k
k
k
u
u
u
k
u
u
k
k
u
u
u
k
u
k
k
u
k
k
k
k
k
u
k
k
u
k
u
k
u
k
u
k
u
u
k
k
u
k
k
k
k
k
k
u
k
u
u
u
k
u
u
k
k
u
k
u
u
k
k
u
k
u
k
k
k
u
u
u
k
u
u
k
u
u
k
k
k
k
u
u
u
u
k
k
u
u
u
k
k
u
k
u
k
k
k
k
k
u
k
k
k
k
u
u
u
k
u
k
k
k
u
u
k
k
u
u
u
k
k
u
u
k
k
u
k
u
k
u
k
u
k
u
u
u
u
k
k
k
k
k
k
k
k
k
u
k
k
u
k
u
u
u
u
k
k
k
u
u
u
k
k
u
k
k
k
k
u
u
u
u
k
k
u
k
k
k
u
k
k
u
u
k
k
k
k
u
u
u
u
u
u
k
k
u
k
k
k
k
u
u
k
u
u
k
u
u
u
k
u
k
u
u
u
u
u
k
u
k
k
u
u
u
k
u
u
k
u
k
u
u
u
k
k
u
u
k
u
u
u
k
u
k
k
u
u
u
k
u
u
k
k
u
k
u
u
k
u
k
u
k
k
k
u
k
u
u
k
k
k
u
u
u
k
k
k
u
k
k
k
u
u
k
k
k
u
k
u
u
k
u
u
u
u
k
k
k
k
k
u
u
k
k
k
k
k
u
k
u
u
u
k
u
k
u
u
u
k
u
k
k
u
k
k
k
k
k
u
u
u
k
u
k
u
k
k
k
u
k
k
k
k
k
k
u
k
k
k
k
k
u
u
u
u
k
u
u
k
u
k
k
u
u
k
k
u
k
k
k
u
k
k
k
k
k
u
k
k
k
k
u
u
u
u
u
k
k
k
u
u
k
u
u
u
u
k
u
u
u
u
u
k
k
u
u
k
u
u
u
u
u
k
u
u
u
k
u
u
k
u
u
k
u
u
u
k
u
k
u
k
k
k
k
k
k
u
k
u
u
k
k
k
k
k
k
u
u
k
k
k
k
u
k
u
u
u
k
u
u
u
k
k
u
u
u
k
k
k
u
k
u
k
k
u
u
k
u
k
k
k
k
u
u
u
u
u
k
u
u
k
k
k
k
u
u
u
u
u
u
k
k
k
k
k
k
u
k
u
k
k
k
k
k
u
k
k
u
k
u
k
u
k
k
u
u
u
u
k
k
k
k
k
k
k
u
u
u
u
k
k
k
k
k
k
u
k
k
u
k
u
u
k
k
k
u
k
u
k
k
u
k
k
u
u
k
u
k
u
k
u
u
k
u
u
u
u
k
k
k
u
k
u
u
k
u
u
k
k
u
u
u
u
k
u
u
k
u
u
k
k
u
u
k
k
k
k
k
u
k
k
u
u
u
u
k
k
k
k
k
u
k
u
u
u
k
u
u
u
u
u
k
k
u
k
u
k
k
k
u
k
u
u
k
k
u
k
k
u
u
u
k
u
u
u
u
u
u
k
u
u
k
k
k
k
u
u
u
u
u
u
k
k
k
k
u
k
k
u
k
u
u
u
u
u
k
k
k
u
u
k
u
u
u
k
k
u
u
u
u
k
u
u
u
u
u
k
k
u
k
u
u
k
u
u
k
u
k
u
k
u
u
u
k
u
k
k
k
u
u
k
u
u
u
u
k
k
u
k
u
k
k
u
u
u
u
k
k
u
u
u
u
k
k
u
k
u
k
u
u
k
u
u
u
k
k
u
k
k
u
u
u
k
k
k
k
u
k
k
u
u
u
u
u
k
u
u
u
k
k
k
k
k
k
k
u
u
k
k
u
k
k
u
u
k
k
u
k
u
u
k
k
k
u
k
u
u
k
u
k
k
k
u
k
u
k
u
k
k
u
u
k
u
k
k
k
k
k
k
k
k
u
u
k
u
u
u
u
u
u
u
u
k
k
u
u
u
u
u
k
k
k
u
u
k
u
k
u
k
k
k
u
u
u
u
u
k
u
u
u
k
u
k
k
k
u
k
k
k
k
k
k
u
u
u
u
u
u
k
k
u
k
u
k
k
k
k
k
u
u
u
u
u
u
k
k
u
k
k
u
u
u
k
k
k
u
k
k
u
u
u
u
k
k
u
k
k
k
u
u
k
u
k
k
k
u
u
k
u
k
u
k
k
u
u
k
u
k
u
u
u
k
k
u
u
k
k
k
u
k
k
u
k
k
u
k
k
u
u
u
k
u
u
u
u
k
k
k
k
u
k
u
u
u
k
u
k
k
k
u
k
u
u
u
u
u
k
k
u
k
u
k
u
u
k
k
u
k
u
u
k
k
k
k
k
u
k
u
u
k
u
k
k
u
u
u
u
u
u
u
k
u
k
u
u
u
u
k
u
u
u
k
u
k
u
k
k
u
u
u
k
k
u
u
k
k
u
k
k
u
u
k
k
u
k
k
u
k
u
k
k
u
k
k
u
u
k
u
k
k
u
u
u
k
u
k
k
k
k
k
k
u
u
u
u
u
u
k
k
k
k
k
u
u
u
k
u
k
u
u
k
k
u
u
k
k
k
k
k
k
u
k
k
u
k
k
k
k
k
u
k
u
k
k
u
k
u
k
k
u
u
u
k
u
u
u
u
u
u
k
u
u
u
u
u
u
u
k
k
k
k
u
k
u
k
u
k
u
u
u
u
k
u
u
u
u
u
k
u
k
k
k
u
u
u
u
u
k
u
u
k
u
u
k
k
k
k
k
k
k
k
u
u
u
u
k
k
u
k
k
u
u
k
u
k
k
u
u
u
k
k
u
u
u
k
u
k
u
k
k
u
u
u
k
u
u
k
k
k
k
k
k
u
k
k
u
k
k
k
k
k
k
u
u
k
k
k
u
k
u
u
k
k
k
k
u
u
k
u
k
u
k
k
u
k
k
u
k
u
u
u
k
k
u
k
u
k
k
k
k
k
k
u
u
u
u
k
k
u
k
u
k
k
u
k
u
u
k
k
u
u
k
k
k
k
u
k
k
u
u
k
u
u
u
u
k
k
u
u
u
u
k
k
u
u
k
k
u
k
u
k
u
u
u
k
k
k
u
k
k
u
k
k
u
u
u
k
u
k
u
u
u
u
u
k
k
k
u
k
k
k
k
k
u
u
u
k
u
k
k
k
k
k
u
k
k
k
k
k
k
k
u
u
u
k
u
u
k
k
u
u
k
k
k
u
u
k
k
k
u
k
k
k
u
k
u
k
k
u
k
k
k
u
u
k
k
k
u
k
u
k
u
k
u
u
k
u
k
k
k
k
k
u
k
k
k
u
u
u
u
k
u
u
k
k
u
u
k
k
u
u
u
u
k
k
k
u
u
k
u
k
k
k
u
k
u
k
u
k
u
k
u
k
k
u
k
u
k
u
u
k
u
u
k
u
u
k
k
k
u
u
k
k
k
u
u
u
u
u
u
u
u
u
k
k
k
k
u
k
u
k
k
k
u
u
k
k
k
k
u
k
u
k
k
u
u
k
k
u
k
u
k
u
k
u
u
k
u
k
k
u
k
u
u
u
k
u
k
u
u
k
u
k
u
u
u
k
k
k
u
u
u
u
k
k
u
k
u
k
u
k
u
u
u
k
u
k
u
k
k
u
k
k
k
k
u
k
u
u
u
k
u
k
k
u
k
u
u
k
k
u
k
k
u
k
k
u
u
k
u
k
u
k
u
k
u
u
k
k
k
u
u
k
k
u
k
k
k
k
u
u
u
k
u
k
k
u
u
k
u
k
k
k
u
k
k
k
k
u
u
u
u
k
u
k
k
k
u
k
k
u
u
k
u
u
u
u
u
u
k
k
u
u
u
u
u
k
k
u
k
k
k
u
u
u
u
u
k
k
u
k
u
k
k
k
u
u
u
k
u
u
k
u
u
k
u
u
u
u
k
k
u
u
k
u
k
u
u
k
k
u
u
k
k
k
k
k
k
u
u
k
k
k
u
k
k
u
k
u
u
u
u
u
u
k
k
k
k
u
k
u
u
u
k
u
k
u
k
u
k
k
u
k
u
u
k
u
u
k
k
u
u
u
u
k
k
u
u
k
u
u
u
u
k
k
u
k
u
u
u
k
k
u
u
u
k
u
k
k
k
k
u
k
u
k
u
k
u
u
u
k
k
k
u
k
u
u
u
u
u
u
u
u
u
k
k
k
k
u
k
k
k
k
u
u
k
k
k
k
k
k
k
k
k
u
u
u
u
u
k
u
k
k
u
k
u
k
u
u
k
k
k
u
u
u
u
k
u
k
u
u
u
u
k
k
k
k
k
k
k
u
u
u
u
k
k
k
u
u
k
k
k
u
k
k
k
k
k
k
u
u
k
u
u
u
u
u
k
k
u
u
u
k
k
k
k
k
u
k
u
k
u
k
u
k
k
u
u
u
u
k
k
k
u
k
u
u
u
u
k
k
k
k
u
k
u
k
k
u
k
u
u
u
u
u
u
u
k
u
u
u
u
k
k
u
k
k
k
u
k
k
u
k
k
u
u
u
k
u
k
u
k
u
k
u
k
k
u
u
k
k
u
u
u
k
u
u
u
u
u
u
k
k
k
k
k
u
k
u
u
u
k
u
u
k
k
u
u
u
u
k
k
u
u
u
k
k
u
k
u
u
u
k
u
k
k
u
k
u
k
k
k
k
k
u
k
k
k
k
k
u
k
k
u
k
k
u
u
k
k
u
k
u
u
k
u
k
k
k
k
u
k
k
u
u
k
u
u
u
k
k
u
k
k
k
u
k
u
u
u
u
u
u
u
u
k
k
u
k
k
u
u
k
u
u
u
u
k
u
k
u
u
k
u
k
k
u
u
u
u
u
k
k
k
u
u
k
u
k
u
u
k
u
k
k
k
k
u
u
u
u
u
u
k
k
u
k
u
k
u
k
k
k
k
k
k
u
u
u
u
u
u
u
u
u
k
k
k
u
k
u
u
u
k
u
u
u
k
u
k
k
u
k
k
u
k
k
u
k
k
k
k
u
k
u
k
k
u
k
k
u
u
u
k
k
u
u
u
k
k
u
k
k
u
u
u
k
u
k
k
k
u
u
k
u
k
u
k
k
k
u
u
u
u
k
u
k
u
k
k
u
k
u
u
u
u
u
k
u
k
k
k
k
u
k
k
u
u
k
u
k
k
k
k
k
u
k
k
k
u
u
k
k
k
u
k
k
u
k
k
k
u
k
u
k
k
u
u
k
u
u
u
u
k
k
k
k
u
u
k
u
u
u
k
k
u
u
k
u
k
u
k
u
u
u
u
k
u
u
k
u
u
u
u
k
u
k
k
k
u
u
k
k
k
k
k
u
u
u
k
k
k
k
u
k
u
u
u
k
u
k
u
k
k
u
k
k
k
k
k
u
k
k
k
k
k
u
u
k
u
k
u
u
u
u
k
k
k
u
k
k
u
k
k
k
k
u
u
u
k
u
k
u
k
u
u
k
u
k
k
k
k
k
k
k
k
k
u
u
u
k
u
k
u
u
k
u
k
k
k
k
k
u
k
k
u
k
u
k
u
k
u
k
u
u
u
u
k
u
u
k
u
k
k
u
u
k
k
u
u
k
k
k
k
k
k
u
k
u
u
k
u
u
k
k
k
u
u
u
k
u
u
k
u
u
u
k
k
u
k
u
u
k
u
k
u
k
u
u
k
u
k
k
u
u
k
u
k
u
k
k
k
u
k
k
u
u
u
u
u
k
u
k
k
u
u
k
u
u
u
u
k
u
u
u
u
u
k
k
u
u
u
k
k
u
u
u
u
u
k
u
k
u
k
k
u
u
k
k
u
k
u
k
u
u
u
u
u
k
k
k
u
k
u
u
u
k
k
k
k
u
u
k
k
u
u
k
k
u
u
k
k
k
u
k
u
k
u
k
u
k
u
k
k
u
k
u
u
k
u
u
u
k
k
u
k
u
k
u
u
u
k
u
k
u
u
k
u
k
k
k
k
u
k
k
k
u
u
k
k
u
u
k
u
u
k
k
u
u
u
k
u
k
u
u
k
k
k
k
k
u
k
u
u
u
k
k
u
k
u
u
u
k
k
k
k
k
u
u
u
u
u
u
u
k
k
k
k
k
u
k
u
u
u
k
k
u
u
k
k
u
u
u
u
u
k
u
k
k
k
k
k
u
u
u
k
k
u
u
u
k
u
k
k
u
k
u
k
u
u
k
k
k
k
u
u
u
u
k
k
k
k
u
k
k
u
k
u
k
u
u
u
k
k
k
u
u
k
k
k
k
u
k
u
k
u
k
k
k
k
u
k
u
u
k
u
u
k
k
k
u
u
u
u
k
k
k
u
k
u
k
k
k
u
k
u
k
u
k
k
u
u
u
u
u
k
k
u
u
u
u
u
k
u
u
k
u
k
k
k
k
u
k
u
u
u
k
k
k
k
k
k
k
u
u
k
u
u
u
u
k
u
k
k
u
u
k
k
u
u
u
k
k
k
k
u
u
u
k
u
k
u
u
u
k
u
k
k
k
u
u
k
k
u
u
u
k
u
k
u
u
u
k
k
k
u
k
u
k
u
k
k
k
k
k
k
u
k
u
k
u
k
u
u
k
u
u
u
k
u
k
k
k
k
k
u
u
k
k
k
u
k
k
k
u
u
u
u
u
k
u
u
u
k
k
k
u
k
u
u
k
k
u
u
k
k
k
k
k
u
k
u
k
u
k
k
k
u
k
k
u
k
k
k
k
u
u
k
k
k
k
k
k
u
u
u
k
u
u
k
u
k
u
k
k
k
k
k
k
u
u
k
u
u
u
u
k
k
k
u
u
k
u
k
k
u
k
k
u
k
u
k
u
u
k
k
u
u
k
k
u
u
u
u
u
u
k
u
k
k
k
u
u
u
k
k
k
u
k
u
u
u
u
k
u
u
k
u
k
u
u
u
k
k
k
u
k
k
u
u
k
u
k
k
u
k
u
k
u
u
k
k
k
k
k
k
u
u
k
k
k
u
k
u
u
u
k
k
u
u
u
k
u
k
u
u
u
u
u
u
u
u
u
k
u
k
u
u
u
u
k
u
k
u
u
k
k
k
k
u
k
u
k
k
u
k
k
k
k
k
k
u
k
u
u
k
k
k
k
u
u
u
k
u
k
u
k
u
k
k
u
u
k
u
u
k
k
u
u
u
u
u
u
k
k
u
u
u
k
u
u
u
k
k
k
k
u
k
k
k
u
u
k
u
k
u
k
u
k
k
u
k
u
u
u
k
k
u
u
u
k
u
u
u
k
u
u
k
k
k
u
u
u
k
u
k
k
u
k
k
u
k
k
u
k
u
k
u
u
u
k
u
u
u
u
u
u
u
k
u
k
u
k
u
k
u
k
k
k
k
k
u
u
u
k
u
u
k
k
u
u
k
k
k
k
u
k
k
u
u
k
u
u
u
u
u
k
k
k
u
k
u
u
k
u
u
k
k
k
k
k
k
u
u
k
k
k
u
u
u
u
k
k
k
u
k
k
u
u
k
u
k
u
u
k
u
k
u
k
k
k
u
u
k
u
k
u
u
k
u
u
u
k
k
u
k
k
u
k
k
u
u
k
k
k
u
k
k
u
u
u
k
u
k
k
k
u
u
u
u
k
u
u
k
u
k
u
u
k
u
k
k
k
u
u
k
k
k
k
k
u
u
k
k
u
k
u
u
k
u
k
k
u
k
k
u
u
k
u
k
k
k
u
k
u
u
u
k
k
k
k
k
k
u
u
u
u
k
u
u
k
k
u
k
u
u
k
k
u
u
u
u
k
u
k
k
u
k
u
k
k
k
k
k
u
u
k
k
u
u
k
u
k
k
k
k
u
u
u
u
u
u
u
u
k
k
u
u
k
u
k
k
u
k
u
u
u
u
k
k
u
u
u
u
u
u
u
u
u
u
k
k
u
u
u
k
k
u
u
u
k
u
u
k
k
u
u
u
u
k
u
u
u
u
k
k
k
u
k
u
u
k
k
u
k
u
k
k
u
u
k
u
u
u
k
u
k
k
u
u
k
u
k
u
u
k
k
u
k
k
u
k
k
k
u
k
u
k
u
u
k
k
u
u
k
u
k
u
k
u
k
u
k
u
u
k
k
u
k
k
u
k
k
u
k
u
u
k
k
u
k
u
k
u
k
u
k
u
k
u
k
k
k
u
k
k
k
k
u
u
u
u
k
k
u
u
k
k
u
u
u
k
k
u
k
u
u
k
u
u
u
u
u
k
u
u
k
u
u
k
u
u
u
u
u
k
k
u
k
u
k
k
u
u
u
u
k
u
u
k
k
k
u
k
k
k
k
u
k
k
u
k
k
u
k
k
k
u
k
u
u
u
k
u
k
u
u
u
k
k
u
u
u
k
k
u
u
u
u
k
k
u
u
u
u
k
k
u
k
u
u
u
k
k
u
u
k
k
k
u
u
k
k
k
u
k
k
k
u
u
k
k
k
u
u
u
u
u
u
k
k
k
k
u
u
u
u
k
k
k
u
u
u
u
k
u
u
k
u
u
k
u
u
k
k
u
u
u
u
k
k
k
k
k
k
k
u
u
u
u
u
k
u
k
k
k
u
u
u
u
k
k
u
k
k
k
u
k
k
u
k
u
k
k
k
k
u
u
u
k
u
u
u
u
u
u
u
u
k
k
u
k
k
k
k
k
k
u
k
u
k
k
k
k
u
u
k
k
u
k
u
u
k
u
u
u
u
u
u
k
k
k
u
u
u
u
k
u
k
u
u
k
u
k
k
u
k
u
k
u
u
k
k
u
u
u
k
u
k
u
k
k
u
k
u
k
k
k
u
u
u
k
u
u
k
u
k
u
u
k
u
u
k
u
u
k
u
k
u
k
k
k
u
k
k
u
u
u
k
u
k
k
u
k
u
k
k
u
u
u
u
k
k
k
u
k
k
k
u
u
u
k
u
k
k
u
k
u
k
k
u
u
u
u
u
u
k
k
u
k
k
k
k
k
u
k
u
k
u
u
u
u
k
k
u
k
u
u
u
u
k
u
u
k
u
u
k
u
k
k
k
u
k
k
k
k
u
u
k
u
u
u
u
k
u
u
u
u
u
u
k
k
k
u
u
u
k
u
u
u
k
k
k
k
k
u
u
u
u
u
u
u
u
k
k
k
k
u
k
k
u
u
u
k
u
u
k
u
k
u
k
u
u
k
k
u
k
k
u
k
u
u
u
u
u
k
k
k
u
u
k
u
u
k
u
k
k
u
u
u
u
k
k
k
k
u
u
k
u
k
u
u
k
u
u
u
k
u
u
k
k
u
u
u
u
u
u
k
k
u
k
k
u
k
u
k
k
u
u
u
k
k
k
k
k
k
k
k
k
u
k
u
u
u
k
u
k
u
k
u
u
u
k
u
u
k
k
u
u
k
u
k
k
u
u
u
k
u
u
k
k
k
k
k
k
u
u
u
u
k
k
u
u
u
u
k
k
k
k
u
u
k
k
k
u
u
u
u
u
k
k
u
u
u
k
u
k
k
k
u
k
k
k
k
u
u
u
k
k
k
u
k
u
k
k
k
u
k
k
k
u
u
k
u
u
u
k
u
u
k
k
u
k
k
k
k
k
u
u
u
u
u
k
u
u
u
k
k
k
k
u
k
u
u
u
k
k
u
u
k
u
u
k
k
k
k
u
u
k
k
k
k
u
k
k
u
u
k
u
u
u
k
u
u
u
u
k
k
u
k
u
u
k
k
k
k
k
u
k
k
u
k
u
u
u
k
u
k
k
k
k
u
k
u
u
u
k
k
k
k
u
u
u
u
k
k
k
u
u
k
u
k
k
u
k
k
u
k
u
k
k
u
u
k
k
u
u
k
k
u
k
k
k
u
k
k
u
u
k
u
k
u
k
k
u
k
u
u
k
k
u
u
k
k
k
u
u
k
u
u
k
u
k
u
k
k
u
k
k
k
u
u
k
u
u
u
u
u
u
k
k
u
u
u
k
u
k
u
u
k
u
u
u
u
k
k
u
k
k
k
u
k
u
k
k
k
u
u
k
k
k
u
u
u
u
u
k
u
k
u
k
u
k
k
k
u
k
k
k
u
u
u
k
u
k
k
k
k
k
u
u
k
u
u
k
u
k
k
k
u
k
k
k
u
u
k
k
k
k
u
k
u
k
u
u
k
k
k
u
u
u
u
u
k
u
k
u
k
k
u
k
u
u
k
u
u
u
u
u
u
u
k
u
u
u
u
u
u
u
u
k
k
u
u
k
u
u
u
u
u
u
u
k
k
k
k
u
k
u
k
k
k
k
u
k
k
u
u
u
k
u
u
u
u
u
k
u
u
k
u
u
k
u
u
u
u
u
u
u
k
u
u
k
u
u
u
u
u
k
k
k
k
u
k
u
k
k
k
k
u
u
u
u
u
u
u
k
k
k
u
u
k
u
k
k
k
k
k
u
k
u
u
k
k
u
k
u
u
u
u
k
k
k
u
k
k
k
k
u
u
k
k
k
k
k
u
k
u
u
k
k
u
u
k
k
k
u
k
u
k
u
k
k
u
u
u
u
u
u
k
k
u
k
k
k
k
k
k
k
k
k
k
k
k
u
u
u
k
k
k
k
k
u
k
k
k
u
k
k
k
k
k
u
k
u
u
u
u
u
u
k
k
u
u
k
k
k
u
k
k
u
u
k
u
u
k
u
u
u
k
u
k
u
k
u
k
u
k
k
u
u
u
u
k
u
k
k
k
u
u
k
k
u
k
k
k
u
u
k
k
k
k
k
k
u
k
k
u
u
u
u
u
u
u
k
u
k
u
u
k
k
k
k
k
k
u
u
k
k
u
k
k
k
k
u
u
u
u
u
u
k
u
u
k
k
u
u
k
u
k
u
u
u
u
u
k
k
u
k
u
u
u
u
u
u
k
k
k
k
k
k
u
k
k
k
k
u
u
u
k
u
k
u
k
u
u
u
k
u
k
k
u
u
k
k
k
k
u
k
k
u
u
k
u
u
u
u
k
u
u
k
u
u
k
k
k
k
u
k
u
k
k
k
u
u
u
k
u
u
k
u
u
k
k
k
u
k
u
u
u
u
u
u
k
k
u
u
u
k
k
u
u
k
u
k
k
u
u
k
k
k
k
u
k
k
u
u
u
k
k
u
u
u
u
u
u
k
k
k
k
u
u
u
k
u
u
u
u
k
k
u
k
k
k
u
k
u
k
k
u
k
u
u
u
u
k
u
u
u
k
k
k
u
u
u
u
u
u
k
u
k
u
k
k
u
k
u
k
k
k
k
u
k
u
k
u
k
k
u
u
k
u
u
u
k
u
u
u
k
u
u
k
u
u
k
k
u
u
u
u
u
u
k
k
k
u
u
k
k
k
u
k
u
u
k
u
k
u
u
k
k
k
k
u
u
k
u
u
u
u
u
k
k
k
u
u
k
k
k
k
k
u
k
u
u
k
u
u
u
u
u
u
k
k
u
u
u
k
u
k
u
u
u
u
u
u
u
k
k
k
u
u
k
k
k
k
k
u
u
u
u
u
k
u
u
k
k
u
u
k
k
u
u
k
k
k
k
k
k
k
u
u
u
u
k
k
u
u
k
k
u
k
k
u
u
u
u
k
k
u
u
k
u
u
k
u
u
k
u
k
u
k
k
k
k
u
k
k
k
k
u
u
k
u
u
u
k
k
k
k
k
k
k
k
u
u
k
u
u
u
k
k
u
u
u
u
u
k
k
u
k
u
u
u
u
k
k
k
u
u
k
k
u
k
k
u
u
k
k
k
k
u
u
k
k
k
k
k
u
u
k
u
u
k
u
k
u
u
k
k
u
k
k
k
u
u
k
k
u
u
u
k
k
u
k
u
k
k
k
k
u
k
k
u
u
u
k
k
u
u
k
u
u
u
k
k
u
k
k
u
u
u
k
u
u
k
u
k
u
u
k
k
u
u
u
k
k
u
u
k
k
u
k
u
u
u
k
k
u
u
k
k
u
u
u
k
k
u
u
k
u
u
u
u
u
k
u
u
k
u
u
k
u
k
u
k
u
u
k
k
k
u
k
u
k
k
k
k
u
u
k
k
k
u
u
k
u
u
k
k
u
u
u
u
u
u
u
k
u
k
k
u
u
k
u
u
u
k
k
k
k
u
k
k
u
k
k
k
k
k
u
k
k
k
u
u
u
k
u
k
u
u
k
u
u
k
u
u
u
u
k
k
u
k
k
k
u
k
u
k
k
u
u
k
k
u
u
u
k
k
u
u
k
u
k
k
u
k
u
u
u
u
k
k
k
k
u
k
k
k
k
u
u
u
k
u
u
u
k
k
k
u
k
u
u
u
k
k
u
k
u
k
u
k
k
k
k
u
k
u
k
k
k
u
k
k
u
k
u
k
k
k
u
u
u
k
u
k
u
u
u
k
k
k
k
u
k
k
k
k
u
u
u
u
k
u
k
u
k
k
u
k
u
u
k
k
u
u
u
k
k
k
u
k
u
u
u
u
u
k
u
u
u
u
u
u
u
k
u
k
u
k
u
u
k
k
u
k
u
u
k
k
u
u
u
u
u
k
u
u
u
u
k
k
k
k
k
u
u
k
u
k
u
k
k
k
u
k
k
k
k
u
u
k
u
u
u
u
u
k
k
u
u
k
k
k
k
u
k
u
u
u
u
k
k
k
u
k
k
k
k
u
k
k
u
u
u
u
k
u
u
k
u
u
u
u
u
k
u
u
k
u
k
u
k
u
k
k
u
k
u
u
k
u
u
k
u
k
k
k
u
u
u
k
k
u
k
k
u
k
u
k
u
u
u
u
k
u
u
k
u
u
k
k
k
u
k
k
u
k
u
u
u
k
u
u
k
k
u
k
u
k
k
u
k
u
k
k
u
k
u
k
k
k
u
k
k
u
k
k
u
k
u
k
k
k
u
u
u
k
u
k
u
u
u
u
u
u
k
k
k
u
k
k
k
u
k
k
k
k
u
k
k
k
k
k
k
u
k
u
u
u
k
u
u
k
u
u
k
u
u
k
u
u
u
k
u
u
u
u
k
k
k
k
u
k
k
k
u
u
u
k
k
k
u
u
u
u
u
u
u
k
k
u
u
k
u
u
k
u
k
u
k
u
u
u
u
u
k
k
u
k
k
u
u
u
k
k
u
k
k
u
k
k
u
u
k
u
u
u
k
u
u
u
k
u
u
u
u
u
u
u
k
k
u
u
u
k
k
k
k
k
k
k
k
u
k
u
k
u
u
k
u
k
u
u
u
k
k
u
u
u
k
k
k
k
k
u
k
k
u
k
u
u
u
u
k
k
u
k
u
k
u
u
u
k
k
k
u
u
u
u
u
k
u
k
k
k
k
u
u
u
k
u
u
k
k
k
u
k
u
k
u
k
k
k
k
k
k
u
k
k
u
k
k
u
u
k
u
u
u
k
k
k
u
u
k
k
u
k
k
u
k
k
k
k
u
k
k
k
u
u
u
u
u
u
u
k
k
k
k
u
k
k
u
k
k
k
k
u
u
k
u
u
u
u
k
u
k
k
u
k
u
u
k
u
u
k
k
k
u
u
u
k
u
u
u
k
u
u
u
u
u
u
u
u
u
k
u
k
k
u
u
u
u
k
k
u
k
u
k
u
u
u
k
k
u
u
u
k
u
u
k
k
k
k
u
k
u
k
k
u
k
k
k
u
k
u
k
k
k
u
u
u
k
u
u
u
u
u
k
u
k
u
k
u
u
k
u
u
u
k
u
k
u
k
k
u
u
u
u
u
u
u
k
u
u
k
u
k
u
u
k
u
u
u
k
k
k
u
k
u
u
u
u
u
k
k
k
u
k
u
u
k
k
u
k
u
u
k
u
k
k
u
u
u
k
u
u
u
u
u
u
k
k
u
k
k
k
u
k
u
k
k
k
k
u
u
u
k
u
u
u
u
u
u
u
u
k
k
u
u
u
u
k
u
k
k
k
u
u
k
u
k
k
k
k
k
k
u
k
u
k
u
k
k
u
u
k
k
u
u
u
k
u
k
k
k
u
k
k
k
k
k
k
k
u
k
u
k
k
u
k
k
k
u
u
k
k
k
u
k
k
k
k
u
u
k
u
k
u
k
k
k
u
u
u
k
k
u
k
k
k
u
k
u
u
u
u
u
u
u
k
k
k
k
u
k
k
k
k
u
u
k
k
u
u
u
k
k
k
u
u
k
k
u
k
k
k
k
k
k
k
k
u
k
u
k
u
k
u
k
k
u
u
u
k
k
u
u
u
u
k
k
k
k
k
u
u
k
k
k
k
k
k
k
u
u
k
k
k
u
u
k
k
k
k
u
u
u
u
u
u
k
u
u
k
u
u
k
k
u
u
k
k
u
k
k
u
k
u
k
u
u
u
k
u
k
k
u
u
u
k
k
k
k
u
k
u
k
k
k
k
k
k
u
u
k
k
k
u
u
u
u
k
u
u
u
u
u
u
k
k
u
k
u
k
k
k
k
u
u
k
u
k
k
u
k
u
u
u
u
u
u
k
k
u
k
u
k
u
k
k
k
k
u
k
u
u
k
k
k
k
u
k
k
u
k
k
k
u
u
u
k
k
u
k
u
k
u
k
k
k
u
k
k
u
k
u
k
u
k
k
u
k
k
k
u
k
u
k
u
k
u
k
u
u
u
k
u
u
u
u
k
u
k
u
u
k
k
u
u
k
u
u
u
u
k
k
u
k
k
u
k
u
u
k
u
k
k
u
k
u
k
u
k
u
u
u
k
k
k
u
u
k
k
u
u
k
k
k
k
u
u
u
k
u
u
k
u
u
k
u
u
u
u
k
u
u
u
k
k
k
k
k
u
k
u
u
k
k
k
k
u
u
u
k
k
u
u
k
k
u
k
k
k
u
u
k
u
k
u
u
k
k
u
u
k
k
k
k
u
k
u
u
k
u
u
k
u
k
k
u
u
u
u
k
u
k
k
u
u
k
u
u
k
u
k
k
u
k
u
k
u
k
u
k
u
k
k
k
u
k
k
u
k
u
u
u
u
u
k
u
k
u
k
u
u
k
u
u
k
u
u
u
k
u
k
k
u
k
u
u
k
k
u
k
k
k
u
u
k
k
k
k
k
u
u
u
k
u
k
u
k
u
u
u
u
k
k
u
k
k
k
u
u
k
k
u
u
k
u
k
u
k
k
k
k
u
u
k
u
k
k
u
k
k
u
k
k
u
k
k
k
u
k
u
u
k
u
u
u
u
u
u
k
u
k
u
u
k
u
k
k
k
u
k
u
u
u
u
u
k
k
k
k
k
k
u
u
k
k
k
u
k
u
k
k
u
k
u
u
k
u
u
k
k
k
k
k
u
u
u
u
k
k
k
u
k
u
u
u
u
k
k
u
k
u
k
k
k
k
k
k
k
u
k
u
u
u
k
k
u
k
k
k
k
k
k
k
u
u
u
u
u
u
k
k
k
u
u
u
k
k
u
k
k
k
u
u
k
k
k
k
k
u
k
u
u
u
u
u
k
u
k
u
u
k
u
k
k
k
k
k
u
k
u
k
k
k
u
u
k
u
u
u
u
k
u
u
k
u
k
k
u
k
u
k
u
u
u
u
u
k
k
k
k
k
u
k
u
u
u
k
k
k
k
k
k
k
k
u
u
k
u
u
u
k
k
u
k
u
k
k
k
k
k
k
u
k
k
k
k
k
k
u
k
k
k
u
u
k
u
u
u
k
k
k
u
k
u
u
k
k
k
u
k
k
u
k
u
k
u
u
u
u
k
k
u
k
k
u
u
k
k
u
u
k
u
k
u
u
u
k
k
k
k
k
u
k
k
k
u
k
k
k
u
u
u
k
k
u
k
u
u
k
u
u
k
k
u
u
k
k
u
u
u
u
u
u
u
u
u
k
u
k
k
u
k
u
u
k
k
u
k
u
k
k
k
u
k
u
k
u
u
k
k
u
k
u
u
u
k
u
u
k
u
k
u
k
k
k
u
u
k
k
u
u
u
u
u
u
u
u
k
u
u
k
u
u
k
u
u
k
u
k
u
u
k
k
u
u
k
k
k
u
u
u
u
u
u
u
u
k
u
k
k
k
u
u
u
k
u
u
k
u
k
k
k
u
u
k
k
u
k
k
u
k
u
k
k
k
k
u
k
u
u
u
u
k
u
k
u
u
k
u
k
k
u
k
u
k
k
k
k
k
k
u
u
k
k
k
k
k
u
k
k
k
k
u
u
k
u
u
u
u
u
k
u
k
k
k
u
k
k
u
u
k
u
k
u
k
u
k
u
k
u
k
u
u
u
u
u
u
u
u
u
u
k
k
k
k
u
u
u
u
k
k
u
k
u
k
k
k
k
u
u
k
k
k
k
k
k
u
u
u
k
u
u
u
u
u
u
u
k
k
u
u
u
k
k
k
u
u
u
k
u
k
u
u
k
u
u
k
k
k
u
k
u
u
u
k
u
k
k
k
u
k
k
u
u
u
u
k
k
k
u
k
u
k
k
u
k
k
u
u
k
u
u
u
k
k
u
u
u
u
u
k
k
k
k
k
u
k
k
k
k
k
k
k
k
k
k
u
u
k
u
k
u
k
u
u
u
k
k
k
u
u
u
k
k
u
k
k
u
k
k
u
u
k
u
k
u
k
u
k
u
k
u
u
k
k
u
u
u
k
k
u
k
k
u
k
u
u
k
u
k
u
u
k
k
u
u
k
u
k
u
u
k
k
u
k
u
u
k
u
u
k
k
k
k
k
u
u
u
u
u
u
u
k
u
u
u
k
k
u
k
u
u
u
u
u
k
u
k
k
u
k
u
u
k
u
k
k
k
k
k
k
u
k
k
k
k
k
u
k
u
k
k
u
k
k
u
u
k
u
k
k
u
u
k
u
k
k
k
k
u
k
u
k
k
u
k
k
k
k
u
k
k
u
k
u
k
k
u
k
u
k
k
k
k
u
k
u
k
k
k
u
u
u
u
u
k
u
k
k
k
u
u
u
k
u
u
u
k
u
u
k
u
k
u
u
u
k
k
u
u
u
k
k
k
u
u
u
k
k
k
k
u
u
u
k
k
u
k
u
u
u
u
u
k
k
k
k
k
k
k
u
u
k
u
k
k
u
k
u
u
k
k
u
k
u
u
u
u
k
k
k
k
u
u
u
k
u
u
k
u
k
k
u
u
u
u
k
k
k
u
k
k
k
k
k
u
k
u
k
k
k
u
u
u
k
k
k
u
k
u
u
k
k
k
u
u
k
k
u
u
u
k
u
k
u
u
k
k
u
k
k
k
k
u
k
u
k
k
k
u
u
u
u
k
u
u
u
k
k
u
k
u
k
k
k
u
k
u
k
k
u
u
u
k
k
k
k
u
u
u
u
u
u
k
u
u
k
u
k
u
u
u
u
u
k
k
k
k
u
k
u
k
k
u
u
u
k
u
u
u
u
k
k
k
u
u
k
k
u
u
u
k
u
k
u
u
u
u
k
k
k
k
k
u
k
u
u
u
u
k
k
k
k
u
k
k
k
k
k
k
u
k
k
k
k
u
k
u
k
k
k
u
k
u
k
k
k
u
u
k
k
u
k
k
u
u
u
k
u
u
k
u
k
k
u
k
k
u
k
k
u
u
u
k
k
u
k
k
u
u
k
u
u
k
k
k
k
k
k
k
u
k
k
k
k
u
k
k
u
k
u
k
u
k
k
k
k
k
u
k
u
k
u
k
u
u
u
k
k
u
k
k
u
u
k
u
u
u
k
u
k
k
k
k
u
u
k
u
k
k
k
k
u
u
u
k
u
u
u
k
k
u
k
u
u
k
u
k
k
k
k
k
k
k
u
u
u
k
u
u
u
u
u
k
u
k
k
k
u
k
k
k
u
u
u
k
u
k
u
k
u
k
u
k
u
k
k
k
k
u
u
k
u
u
k
k
u
k
u
k
k
u
u
u
k
u
u
u
u
u
k
k
k
u
u
u
k
k
k
k
k
u
k
u
k
u
u
u
k
k
u
u
k
u
k
u
u
u
k
k
u
k
u
k
k
u
u
k
k
u
k
u
k
k
k
k
k
k
k
k
k
u
u
k
k
k
k
k
k
u
k
u
k
u
u
u
u
u
k
u
k
u
k
k
k
k
u
k
k
u
k
k
k
k
u
u
k
u
k
k
k
k
k
u
k
k
k
u
k
k
k
u
u
u
u
k
u
k
k
k
k
k
u
u
k
u
k
u
k
k
k
u
k
u
k
u
k
u
u
k
k
u
u
k
u
k
u
k
k
u
k
k
u
u
k
k
u
u
u
k
k
u
u
u
k
k
k
u
u
u
u
u
k
k
u
k
k
k
k
k
u
u
k
u
k
k
u
k
k
k
u
k
u
k
k
k
k
k
k
u
u
u
u
u
k
u
k
u
k
k
k
u
k
k
k
k
k
k
k
u
u
u
k
k
u
u
k
k
u
u
u
k
k
k
u
u
k
k
u
u
u
k
u
u
u
u
u
u
k
k
u
u
k
u
k
k
u
u
k
u
u
u
k
k
k
k
u
u
u
u
u
u
k
k
u
k
u
k
u
k
u
k
u
u
u
k
k
u
u
k
u
u
k
u
k
u
u
k
u
u
k
u
k
k
k
k
k
u
k
k
k
k
u
k
u
u
k
u
u
u
k
u
k
k
u
u
u
k
k
k
u
u
u
k
u
u
u
u
u
u
k
u
k
k
u
u
k
k
k
k
k
k
k
k
u
u
k
u
k
k
k
u
k
k
k
k
k
k
k
u
k
k
u
u
u
u
u
u
k
u
u
k
k
u
u
u
u
k
u
u
u
u
k
k
k
u
u
u
k
u
u
u
k
u
k
u
k
u
u
u
u
k
k
k
k
k
k
u
k
u
u
k
u
u
u
u
u
u
k
k
u
u
u
u
k
u
u
u
k
u
k
k
u
k
k
k
k
k
u
k
k
u
k
u
u
k
u
u
u
k
u
u
k
u
u
u
k
k
k
u
u
u
u
u
u
k
k
u
u
u
k
u
u
u
u
k
u
u
u
k
u
k
u
u
u
k
k
u
u
k
u
u
u
u
u
k
u
k
u
k
u
k
k
u
k
k
k
u
u
k
k
k
u
u
k
u
k
k
k
k
u
k
k
k
u
u
k
u
u
k
k
u
u
k
k
u
u
k
k
u
u
k
k
k
k
k
u
u
u
k
k
u
k
k
u
k
k
k
k
u
k
k
k
k
k
k
k
k
u
k
k
k
k
u
k
k
u
k
u
k
u
u
k
u
u
k
k
k
k
u
k
u
k
u
k
u
u
u
k
k
u
u
k
u
k
u
k
u
u
k
k
k
u
u
k
u
u
u
k
u
k
u
u
u
u
k
k
u
k
u
u
u
k
u
u
u
u
k
k
u
u
k
k
k
u
u
k
k
k
k
u
u
k
u
k
k
k
k
u
k
u
u
u
u
u
u
k
k
u
u
k
u
u
u
u
u
u
k
u
k
u
u
u
k
u
k
u
u
k
k
u
u
u
k
k
k
u
k
u
u
u
u
k
u
k
u
u
u
u
u
k
u
k
u
u
u
k
u
k
u
u
u
u
u
u
u
u
u
u
u
k
k
u
u
u
u
k
u
u
k
u
k
u
u
u
k
k
k
k
u
k
u
k
u
u
k
k
u
k
u
k
u
u
u
u
k
k
k
k
k
u
k
u
k
u
k
k
k
k
u
k
k
u
k
k
u
k
u
u
u
k
k
k
u
k
k
u
k
k
k
u
k
u
u
k
u
u
u
k
u
k
k
k
k
u
u
k
u
k
k
k
u
k
k
u
u
k
u
k
u
k
u
u
k
k
k
u
k
u
k
k
k
u
u
k
u
k
u
u
k
k
u
u
k
k
k
u
u
k
k
u
k
k
k
k
k
u
u
u
k
k
u
k
k
k
k
k
u
k
k
k
u
u
k
u
u
k
k
u
u
k
u
k
k
k
k
u
k
u
u
k
u
k
u
k
u
u
u
u
u
k
k
k
u
k
u
u
k
k
k
k
k
u
k
k
u
u
u
k
u
k
u
u
u
k
k
u
u
k
k
k
k
u
u
k
u
k
k
k
k
k
k
u
u
u
u
u
k
u
k
u
k
u
k
k
k
u
u
k
u
u
k
u
u
k
k
k
k
k
u
u
k
u
k
u
u
k
k
k
u
u
k
u
k
k
k
k
u
u
u
u
u
k
u
u
u
u
u
k
u
k
u
u
k
u
u
u
u
k
u
u
k
k
u
u
u
k
u
k
k
u
k
k
u
u
k
k
k
k
u
k
k
k
k
u
u
k
k
k
k
k
u
k
k
u
u
u
k
k
u
k
u
k
k
u
k
u
u
k
u
u
u
k
k
u
u
k
u
u
k
u
u
k
u
u
u
k
u
u
k
u
u
u
u
k
u
u
u
u
u
u
k
u
k
k
u
u
k
k
u
u
u
u
u
u
k
u
k
u
k
u
u
u
u
k
k
k
u
k
u
u
k
k
k
u
u
k
k
u
k
k
k
u
u
k
u
k
u
k
u
k
k
k
k
k
k
k
k
u
u
k
k
k
u
k
u
u
u
k
u
k
k
k
k
k
u
u
u
k
k
k
u
k
u
k
u
u
k
u
k
k
u
u
k
k
k
k
u
u
u
k
u
k
u
u
k
k
u
k
u
k
u
u
k
u
k
k
u
u
u
k
u
u
u
k
k
k
u
u
k
k
u
k
k
k
u
u
u
k
u
k
k
k
u
u
u
u
k
u
u
k
u
u
k
k
k
k
k
u
k
k
u
u
k
u
u
u
u
k
k
u
u
u
u
u
k
k
u
k
u
u
u
k
k
u
k
k
u
k
k
u
u
u
u
k
u
u
u
u
u
k
u
k
k
u
u
u
k
k
k
u
u
u
k
u
k
u
u
u
k
u
k
k
k
k
k
k
u
u
u
k
u
k
u
u
u
u
k
u
k
u
u
u
u
u
k
u
k
k
u
u
k
u
u
u
k
u
k
u
k
u
k
k
u
k
k
k
u
u
k
u
u
u
k
u
k
k
k
k
u
u
k
k
u
u
u
k
u
u
k
k
k
k
u
u
u
u
k
k
k
k
k
u
u
k
u
u
k
u
k
k
k
u
u
k
k
u
k
k
u
k
u
k
u
u
k
k
u
u
k
k
u
u
u
u
u
k
k
k
u
k
u
k
k
k
u
k
k
k
u
k
u
u
k
u
k
k
u
u
u
u
u
u
k
u
k
k
u
u
k
u
k
u
k
k
k
k
k
k
k
k
k
u
k
u
k
k
k
u
k
k
u
k
u
u
u
u
u
u
k
u
u
u
k
k
k
u
k
k
k
u
k
u
u
k
u
k
k
k
k
k
k
k
u
u
u
k
u
k
u
k
k
k
k
k
u
u
k
u
u
k
u
k
u
u
k
u
u
k
k
u
u
k
k
k
u
k
u
u
k
u
u
k
u
u
k
u
k
k
k
k
u
u
u
k
u
k
u
u
k
u
u
u
u
u
u
u
k
u
u
k
u
k
u
k
u
u
k
u
u
u
k
k
u
k
k
u
k
k
k
k
k
k
u
k
k
k
u
u
u
u
k
k
k
u
k
u
u
k
k
u
u
k
u
k
k
u
u
k
k
u
k
k
u
k
u
k
u
u
u
k
k
k
k
k
u
u
u
k
k
u
k
k
u
k
u
u
k
k
k
u
u
k
k
u
u
u
u
k
k
k
u
k
u
u
k
k
k
k
k
u
k
u
u
u
u
k
k
k
k
u
k
k
u
k
k
u
u
k
u
k
u
u
k
k
u
u
k
u
u
k
u
u
k
k
u
u
u
u
k
k
k
k
u
k
k
k
k
k
u
k
u
k
k
k
u
u
k
u
k
k
u
u
u
u
k
u
k
k
k
u
k
u
k
u
k
k
k
k
u
k
k
u
k
u
u
k
u
k
k
u
u
u
u
k
u
k
u
u
k
u
k
u
k
k
k
u
k
k
k
u
u
k
k
k
k
u
u
u
u
k
u
k
k
u
u
u
u
u
k
k
k
u
u
k
k
k
k
u
u
u
u
k
u
u
k
k
u
k
k
k
u
u
k
u
u
k
u
u
k
u
u
k
k
k
u
k
k
u
k
k
u
k
k
u
k
u
u
k
u
u
k
k
k
k
u
k
u
u
u
k
k
k
u
k
u
k
k
u
u
k
u
k
u
k
k
u
k
k
u
u
k
u
u
u
u
k
k
k
k
k
u
u
k
u
k
u
u
k
u
u
u
u
k
u
k
k
k
k
u
u
k
k
k
k
u
u
k
k
k
u
k
k
k
u
u
u
k
k
k
u
u
k
u
k
k
u
k
k
k
u
k
u
k
k
k
u
k
k
u
u
k
k
k
u
k
k
u
k
k
k
u
k
k
k
u
u
k
k
k
k
k
k
u
k
k
u
u
k
u
u
k
k
u
k
u
k
k
k
u
u
u
k
k
k
u
k
k
u
k
k
k
u
u
u
u
u
k
u
u
u
u
k
u
u
u
u
u
k
k
k
k
u
u
k
k
u
u
u
u
k
u
k
k
u
k
u
k
k
u
u
k
k
u
u
k
k
u
k
k
u
u
k
k
u
u
k
k
k
u
k
k
k
u
k
u
u
u
k
u
k
k
u
u
u
u
u
u
u
k
k
k
k
u
k
k
k
k
k
u
u
k
u
k
k
k
k
k
u
k
k
k
k
u
k
k
k
u
k
k
k
k
u
u
k
k
k
u
u
k
u
k
k
u
k
k
k
u
k
u
u
u
k
u
u
u
u
u
k
u
u
k
k
u
u
u
k
u
u
u
u
k
u
k
k
k
k
k
k
k
k
k
u
k
k
u
k
k
k
u
u
u
k
u
k
k
u
k
u
k
u
u
k
k
u
u
u
u
u
u
k
u
u
k
u
k
u
u
u
k
k
k
k
k
k
k
k
u
u
u
u
k
k
k
u
k
k
k
u
k
u
u
k
u
k
k
u
k
k
k
u
u
u
u
u
u
u
u
k
k
u
u
u
k
u
k
u
u
k
k
u
u
u
u
k
u
k
u
u
k
k
k
k
k
k
u
k
k
u
k
k
k
u
u
k
k
u
k
u
k
k
k
u
u
k
k
k
u
k
k
k
u
k
u
u
u
k
u
k
u
u
k
u
u
u
k
u
u
k
u
k
k
k
u
k
u
k
k
k
k
u
k
k
k
k
u
u
u
k
u
u
u
k
u
u
k
k
u
u
k
u
u
u
k
u
k
k
u
k
u
k
u
k
k
u
u
u
u
k
u
u
k
u
u
k
k
u
u
u
k
k
u
u
u
k
u
u
u
k
u
u
u
u
u
u
u
k
u
u
u
u
u
k
u
u
u
k
k
k
u
k
u
u
k
k
k
u
k
k
k
k
k
u
u
u
k
k
k
k
k
u
u
k
k
k
k
u
u
u
u
u
u
k
u
u
k
u
u
u
k
u
u
u
u
k
k
u
u
u
u
u
u
u
k
u
u
k
u
k
k
u
u
k
u
u
k
k
u
k
u
k
u
u
u
u
k
u
k
u
k
k
u
k
k
k
u
k
k
u
k
k
u
k
k
k
u
k
k
k
u
k
u
u
u
k
k
u
k
k
k
u
k
k
u
u
k
u
k
u
k
k
k
u
u
u
u
k
k
k
k
u
k
k
k
u
k
u
k
k
u
k
k
u
k
u
k
k
u
u
u
k
k
k
k
k
u
u
k
k
k
k
u
k
u
k
k
k
k
k
k
u
u
k
k
u
k
k
k
k
k
k
u
u
u
k
k
u
u
u
k
u
u
u
u
k
k
k
k
k
u
u
u
k
k
u
u
k
u
k
k
u
k
u
k
k
k
u
k
k
k
k
u
k
u
k
k
k
u
u
k
k
u
k
k
u
u
u
u
k
u
k
u
k
k
u
k
k
u
u
k
k
u
u
u
u
k
u
k
u
u
u
u
u
k
k
k
k
k
u
k
k
k
u
k
u
k
u
k
k
u
k
k
u
k
u
u
k
u
k
k
u
k
u
u
u
u
k
u
u
u
k
k
k
u
k
u
u
u
k
k
u
u
u
u
k
k
k
u
k
k
u
u
k
u
k
k
u
u
k
u
u
k
k
u
u
u
k
k
k
u
u
u
u
u
k
k
u
u
u
k
k
k
k
u
u
u
u
k
u
k
k
u
u
u
k
u
u
k
k
k
u
k
k
k
u
u
k
u
u
u
u
k
k
k
k
u
k
k
u
u
k
u
u
u
k
k
k
k
u
u
u
k
k
k
k
k
u
u
k
k
u
u
u
k
k
u
k
u
u
k
u
k
k
k
u
u
k
k
k
k
u
k
u
u
u
u
u
u
u
k
u
k
k
u
u
k
u
k
u
u
k
k
u
u
k
u
u
k
k
u
u
u
k
u
k
u
u
k
k
u
k
k
k
u
u
k
k
k
k
u
k
k
u
k
u
k
k
k
u
u
k
k
u
u
k
k
k
k
u
k
u
u
k
k
u
k
u
u
k
u
u
u
u
u
k
u
u
u
u
u
k
k
u
k
u
k
u
k
u
k
u
k
u
k
u
k
k
k
u
k
k
u
k
k
k
u
k
k
u
k
u
u
u
k
u
u
k
k
k
u
k
k
k
u
u
u
k
u
u
k
u
k
k
k
u
k
u
u
k
k
k
u
u
k
u
u
u
u
k
k
u
u
u
u
u
u
u
u
k
k
k
u
k
u
k
k
k
k
k
k
u
k
k
u
k
u
k
k
k
u
u
u
u
u
k
u
u
u
k
k
k
u
u
u
k
u
u
u
k
k
k
u
k
k
u
u
k
k
k
k
k
u
u
u
u
k
u
u
u
k
k
u
k
u
u
u
u
k
k
k
k
k
k
k
k
u
u
u
k
u
u
k
u
k
k
u
k
k
u
u
u
u
u
u
u
k
k
k
u
u
k
k
u
k
u
u
u
k
u
k
u
u
k
u
u
k
u
u
k
u
u
u
u
u
u
u
k
u
u
u
u
k
u
u
k
k
k
u
u
k
u
k
u
k
k
k
k
u
u
k
k
k
k
k
u
k
u
k
k
u
k
u
u
u
k
u
k
u
k
u
u
u
k
k
u
k
k
u
u
k
k
k
u
k
k
u
k
k
u
u
k
u
u
k
u
u
u
k
k
k
k
u
k
k
k
u
k
k
k
k
u
u
u
u
u
u
u
k
u
k
u
u
k
u
u
k
k
u
k
k
k
u
u
k
u
k
u
u
k
u
u
u
k
u
k
k
u
u
k
k
u
u
k
k
k
u
u
k
u
k
u
u
k
u
u
u
k
u
k
u
k
u
u
k
u
k
u
k
u
u
k
u
u
k
u
u
u
k
k
u
u
u
u
u
u
u
k
u
k
u
k
u
k
u
u
k
k
u
u
k
k
k
u
u
u
u
u
u
k
k
u
u
u
u
u
k
u
k
k
u
k
k
k
u
k
u
u
u
k
k
u
k
k
k
k
k
u
k
u
k
u
u
k
k
u
k
k
k
u
k
k
u
k
k
u
u
u
u
u
k
u
k
k
u
u
u
k
u
k
k
u
u
k
u
u
u
k
k
k
u
u
k
k
u
u
k
u
k
u
u
u
u
u
k
k
u
k
u
k
u
u
u
k
k
u
u
u
k
k
k
u
k
u
u
u
u
u
k
u
k
k
k
u
k
u
k
u
k
k
u
k
k
u
u
u
k
k
u
k
k
k
k
u
u
u
k
u
u
k
u
k
u
u
k
k
k
u
k
k
k
k
u
k
k
u
u
u
u
k
u
u
k
k
k
k
u
k
k
u
u
u
u
u
u
k
k
k
u
u
u
u
k
k
u
k
k
k
u
u
k
u
k
u
k
u
k
u
u
u
k
k
u
k
u
u
k
u
k
k
k
u
u
k
k
u
k
u
u
u
k
u
k
k
k
k
u
u
u
u
k
k
k
u
k
u
k
u
k
u
u
u
u
k
u
u
k
k
u
k
u
k
k
u
k
u
u
k
u
u
k
k
k
u
u
u
u
k
u
u
k
u
u
u
u
k
k
k
k
k
k
u
k
k
u
u
u
u
k
k
u
u
k
k
k
k
u
u
k
k
u
k
k
k
u
u
u
u
u
k
k
u
k
k
u
u
k
k
k
u
u
u
k
k
k
u
k
k
k
u
k
k
u
k
u
u
k
k
k
k
k
u
k
u
k
u
u
u
k
u
u
k
u
u
k
k
u
u
k
u
k
k
k
u
k
u
u
u
u
u
u
k
u
u
u
k
u
k
u
k
u
k
u
k
u
k
k
u
k
u
u
k
u
k
u
k
u
k
u
k
k
u
u
k
k
k
u
k
u
u
u
u
k
u
u
k
k
k
k
u
u
u
u
u
u
u
u
k
k
k
k
u
k
k
u
u
u
k
k
k
k
k
k
k
k
u
k
k
u
k
k
u
k
u
u
u
u
u
k
u
k
k
k
k
k
k
k
u
u
u
k
k
u
k
k
k
k
u
k
k
u
k
k
u
k
k
u
k
u
k
k
k
u
k
k
u
k
u
k
k
k
k
k
u
u
u
u
k
u
u
u
u
k
k
k
k
k
u
u
u
u
u
u
u
k
u
u
k
u
k
k
k
u
u
u
u
k
k
u
u
u
u
k
k
u
u
u
k
u
u
k
k
k
k
u
k
k
u
u
u
k
k
k
u
k
u
k
k
u
u
k
k
k
u
u
k
k
k
k
k
u
k
k
u
k
k
k
k
k
u
u
u
u
k
k
k
k
u
k
u
u
k
u
u
u
u
k
k
u
u
u
u
u
k
u
k
k
k
k
k
u
u
k
u
u
k
k
k
k
u
k
k
u
u
u
k
k
u
u
u
k
k
u
u
u
k
k
k
u
u
u
k
u
k
u
u
u
u
k
k
k
k
k
u
u
k
k
u
k
u
k
k
u
k
u
u
u
k
k
u
u
k
u
k
k
u
u
u
k
k
u
k
k
u
u
k
k
k
u
u
k
k
k
u
k
k
k
k
k
u
k
u
u
k
k
u
k
k
u
u
u
u
k
u
u
k
u
u
k
u
k
k
u
k
k
k
u
k
u
u
u
u
k
u
k
u
u
k
k
u
u
k
u
u
k
k
k
u
k
k
k
k
u
u
u
k
u
u
u
u
u
u
k
k
k
u
k
u
k
k
k
k
u
u
k
u
k
u
u
u
u
k
k
k
k
k
k
u
u
u
k
k
u
k
k
k
k
u
u
k
k
u
u
u
u
u
u
k
k
k
u
u
k
k
u
u
u
u
k
k
u
u
k
u
k
u
u
u
u
u
u
k
u
u
u
u
k
k
k
k
k
u
k
k
u
u
k
k
u
k
k
u
k
k
k
k
k
k
k
u
u
k
k
u
k
u
u
u
u
u
u
k
k
k
u
k
u
k
u
k
u
k
k
u
k
u
u
u
k
u
u
k
u
k
k
k
k
k
u
k
k
u
u
u
k
u
k
k
k
k
u
u
u
k
u
k
u
k
u
u
u
u
k
u
k
k
k
u
k
k
u
u
u
k
k
u
k
k
u
k
u
u
k
u
k
u
k
k
k
k
k
k
k
u
u
k
k
k
u
k
u
k
u
k
u
k
u
k
k
k
k
k
k
k
k
k
k
k
k
u
k
u
k
u
u
u
k
u
k
k
k
k
k
k
k
u
k
k
u
u
k
u
k
k
k
u
k
u
u
u
k
k
k
u
u
u
k
k
u
u
k
k
k
u
k
u
u
k
k
k
k
k
k
k
u
u
k
u
u
k
k
u
k
k
u
u
k
k
u
k
k
u
u
k
k
u
k
u
k
u
u
u
u
k
u
k
u
k
k
u
k
k
u
k
k
k
u
u
u
k
k
u
u
k
k
k
k
k
u
u
k
u
k
u
k
k
u
u
u
k
u
k
u
k
u
k
u
k
k
k
u
k
k
k
k
k
k
u
u
u
u
k
k
u
k
u
u
k
k
k
u
k
k
u
k
k
u
k
k
u
u
k
u
u
k
u
k
k
k
u
k
u
k
u
k
k
u
u
u
u
u
u
k
u
k
k
k
u
k
k
u
u
u
k
u
u
u
k
k
k
k
u
u
u
u
u
u
u
u
u
u
u
u
u
u
u
u
u
k
u
u
k
k
u
u
k
k
u
u
u
u
u
u
k
k
u
k
k
k
k
u
u
k
k
u
k
u
k
k
u
k
k
k
u
u
u
k
k
k
k
u
u
k
k
k
u
u
k
k
u
k
u
k
u
u
u
k
u
k
k
k
u
u
u
u
u
u
u
u
k
u
k
k
k
k
k
k
u
k
k
k
u
u
k
u
k
k
u
k
k
k
k
k
u
u
k
u
k
u
k
k
k
k
u
k
u
k
u
k
u
k
u
u
k
k
k
k
k
u
k
k
u
k
k
k
u
u
u
u
k
k
k
k
k
k
u
k
k
k
k
u
u
u
k
u
u
u
u
k
k
u
k
u
u
k
k
k
k
k
u
k
u
u
u
u
k
k
k
u
k
u
k
k
u
u
k
u
k
k
u
u
u
u
k
u
k
k
u
k
k
k
k
k
k
k
k
k
k
k
u
k
k
u
k
k
k
k
k
u
k
k
k
u
k
u
u
u
u
u
u
k
k
k
u
k
k
k
u
u
u
k
k
u
k
k
k
k
u
u
u
u
k
k
u
k
k
u
k
k
u
u
k
k
u
u
u
k
k
k
k
k
k
u
u
u
u
u
k
k
u
u
u
u
u
k
u
k
u
u
k
k
u
k
k
k
k
k
k
k
k
u
k
u
k
k
u
k
k
u
k
u
k
u
u
u
u
u
k
k
u
k
u
k
k
k
u
u
k
k
u
k
u
u
k
k
u
k
k
u
k
k
k
k
k
k
u
k
k
k
u
k
u
u
k
k
u
u
k
u
u
k
k
k
u
u
u
u
k
k
u
u
k
k
u
k
u
k
k
u
u
u
k
u
k
u
u
k
u
u
k
k
k
u
u
k
k
u
u
u
u
k
k
k
k
k
k
k
u
u
k
u
k
k
u
k
u
k
k
k
k
k
k
u
u
k
u
u
u
k
u
k
u
k
u
k
k
k
k
u
u
k
u
u
k
u
k
k
u
u
k
u
k
k
k
k
k
u
u
u
u
u
k
k
k
u
u
k
u
u
k
k
u
u
u
k
k
u
k
k
u
u
u
u
k
k
k
u
k
u
k
u
k
u
k
u
k
k
u
u
u
k
u
k
u
k
k
k
k
k
u
u
u
u
u
u
u
u
k
u
k
u
k
k
k
u
k
u
k
u
k
k
u
k
k
u
u
k
u
u
u
k
u
k
u
k
u
k
k
u
u
k
k
k
k
k
u
u
u
u
k
u
u
u
u
k
k
u
k
u
u
u
k
u
k
u
k
u
k
k
k
k
k
k
k
k
k
u
u
u
u
u
k
k
k
k
k
u
u
k
u
k
u
u
u
k
k
k
k
k
u
u
u
u
u
u
u
k
k
u
k
u
k
u
u
u
k
u
u
u
u
u
u
k
u
u
k
k
u
u
u
k
u
k
k
k
k
k
u
u
u
u
k
u
u
k
k
k
u
u
k
u
u
u
u
k
k
k
u
k
k
u
k
k
k
u
u
u
u
k
u
k
u
k
u
u
u
k
k
u
u
u
k
u
k
k
u
u
u
k
u
u
k
k
u
k
k
k
k
u
k
k
k
k
k
u
u
k
u
u
k
u
k
u
k
k
u
u
u
k
u
k
u
k
u
u
u
u
u
k
k
k
u
k
k
u
u
u
k
k
u
u
u
k
u
u
u
u
u
u
u
u
k
u
u
u
k
k
u
k
k
u
k
k
k
u
u
u
u
k
u
u
k
u
k
u
u
u
k
k
k
u
k
u
k
k
k
k
u
k
u
u
k
k
k
u
u
u
k
k
k
k
u
k
k
u
u
k
k
k
k
k
u
k
k
k
u
u
k
u
k
k
k
u
k
u
k
u
k
k
k
u
k
k
u
k
u
k
u
k
k
k
k
u
u
u
k
k
u
k
u
u
u
u
u
u
u
u
u
u
k
u
k
u
k
k
k
u
u
k
k
u
k
k
u
u
u
k
u
k
u
u
k
u
u
k
u
u
u
k
k
u
u
u
u
k
u
k
k
u
k
u
u
k
k
k
k
k
u
k
k
k
k
u
k
k
k
k
k
k
u
k
k
k
k
u
u
u
u
k
u
k
k
u
k
u
k
k
k
u
k
u
k
u
u
k
u
k
k
u
u
k
k
k
k
k
u
k
u
u
k
k
u
u
u
u
k
u
k
k
u
k
u
k
k
u
u
k
k
k
k
u
u
u
k
k
u
u
k
u
u
k
u
u
u
k
k
k
k
k
u
k
k
k
u
u
u
u
k
k
u
u
u
k
k
u
u
u
k
u
k
k
k
u
k
k
k
k
u
u
k
k
u
k
u
k
k
u
k
u
k
u
k
u
k
k
k
u
k
u
k
u
k
k
u
k
u
u
u
k
u
u
k
k
u
u
k
u
k
k
k
u
u
k
k
k
u
u
k
k
u
u
k
k
k
k
u
u
k
u
k
u
k
k
k
u
u
k
u
u
k
u
u
k
u
k
k
k
u
k
u
k
k
k
k
k
k
u
k
u
u
k
u
k
u
k
k
u
u
u
u
u
k
u
k
u
u
u
k
u
u
k
u
u
k
k
k
u
k
k
k
k
u
u
k
k
u
u
k
u
u
u
u
u
k
u
u
u
k
k
k
k
k
k
k
u
u
u
u
u
u
u
u
u
k
k
k
u
u
k
k
u
u
k
k
k
k
u
u
k
u
k
k
k
u
k
k
u
u
k
k
k
u
k
k
k
k
u
k
k
k
k
k
k
u
u
k
k
u
k
k
k
k
u
u
u
u
u
k
u
k
k
u
u
u
u
k
k
u
u
u
k
k
k
u
k
k
k
u
u
k
k
u
u
k
u
k
k
k
u
k
k
k
k
k
k
u
u
u
u
k
k
u
k
k
k
k
k
u
k
k
u
u
k
k
k
u
k
k
u
u
k
k
k
k
k
u
u
k
u
k
u
k
u
u
k
u
k
u
u
k
k
k
u
u
u
u
u
u
k
k
u
k
k
k
k
k
k
k
u
u
u
u
k
u
u
u
k
u
u
k
k
u
u
k
u
k
k
u
u
k
k
k
u
u
k
k
u
k
u
k
u
u
k
u
k
u
k
k
u
u
u
k
u
k
k
u
k
u
u
u
u
u
u
k
u
k
u
u
u
k
k
u
u
u
k
u
k
k
u
u
k
u
k
k
k
u
u
k
u
k
u
u
u
u
k
k
u
u
u
u
u
u
u
k
u
u
k
u
k
k
k
u
k
k
k
u
k
u
u
k
u
k
k
k
u
u
k
k
k
u
k
u
u
u
k
k
k
u
u
u
u
u
k
u
u
u
k
k
u
k
k
k
k
k
k
k
k
k
k
u
k
k
k
u
k
u
k
u
k
k
u
k
k
k
u
k
k
k
k
u
u
u
k
k
u
k
k
k
k
u
u
k
k
u
k
k
u
u
u
k
k
k
u
k
k
u
k
k
u
u
k
u
u
u
k
u
k
k
u
u
u
k
u
k
k
u
u
k
u
u
u
k
k
k
u
k
k
k
k
k
u
u
k
k
u
u
u
u
k
u
u
u
k
k
k
k
k
u
u
u
k
k
k
u
u
k
u
u
u
k
u
u
u
k
k
k
u
u
u
k
u
k
k
u
u
u
u
k
u
k
u
k
k
k
u
k
k
u
k
u
u
u
u
u
k
u
u
u
k
k
u
u
k
k
u
k
k
k
u
k
u
u
u
k
u
k
u
k
k
u
u
k
u
k
k
k
k
u
k
u
u
k
k
u
k
k
k
u
k
k
k
k
u
k
k
u
u
k
k
k
k
k
u
k
k
u
k
u
k
u
u
u
k
u
u
u
u
u
k
k
u
u
u
k
k
u
k
u
k
k
u
k
u
k
u
k
k
k
u
u
u
k
k
u
u
k
u
u
u
k
u
k
k
k
u
k
u
u
u
k
u
u
u
k
u
u
u
u
u
u
k
u
k
k
k
k
u
u
u
k
k
k
k
u
k
u
k
u
u
k
u
k
k
u
u
k
u
u
k
u
k
k
u
u
u
k
u
k
u
u
k
k
k
k
u
k
u
k
k
k
u
k
k
u
k
k
u
u
u
u
u
k
k
k
u
u
k
k
u
k
u
u
u
u
k
k
k
u
u
u
u
u
u
u
k
k
k
u
u
k
u
u
k
u
u
k
k
u
k
k
k
k
k
k
k
u
k
k
u
k
k
u
k
u
u
k
u
u
u
u
k
k
k
u
k
k
u
k
k
u
k
k
u
k
u
k
k
k
k
k
k
u
u
k
u
u
u
u
u
k
k
k
k
u
k
u
u
k
k
k
u
k
u
k
u
u
k
u
k
k
u
k
u
k
u
k
u
u
u
k
k
k
k
u
k
u
u
u
u
u
k
k
k
k
k
u
k
k
u
u
u
u
u
k
u
k
k
k
u
u
u
k
k
u
u
u
u
u
k
u
k
k
k
u
u
u
u
u
u
u
k
u
u
k
u
u
u
u
k
u
u
k
k
u
k
u
k
u
k
u
u
k
k
k
u
u
k
k
k
k
k
u
u
u
k
u
k
k
k
u
u
k
k
k
k
k
k
u
u
u
u
k
k
k
k
k
k
k
k
k
u
u
k
u
k
u
u
k
u
u
u
k
k
k
u
u
u
u
k
k
k
u
k
u
k
k
k
u
k
k
u
u
u
k
u
k
k
u
u
k
k
k
k
k
k
k
u
k
k
u
k
k
u
k
u
u
u
k
u
u
k
k
u
k
k
u
k
u
k
k
u
u
u
k
k
u
u
k
u
k
k
u
k
u
k
k
u
u
u
u
k
k
k
k
u
u
k
u
k
u
k
u
u
u
k
u
k
k
u
k
u
u
u
u
k
u
u
k
k
k
k
k
k
u
k
u
u
k
k
u
k
k
k
k
k
k
u
u
k
k
u
k
u
k
k
k
u
u
k
u
k
k
u
k
k
k
u
k
k
u
k
u
k
u
k
k
k
k
k
u
u
u
k
u
u
u
u
k
k
k
k
k
k
k
u
k
u
k
k
u
u
u
k
k
k
u
k
k
k
u
k
k
u
k
u
k
u
k
u
k
k
k
k
u
k
k
u
u
u
u
u
k
u
k
u
k
u
u
u
u
k
u
k
k
k
u
k
u
u
k
u
k
k
u
k
k
k
u
u
u
u
k
u
u
u
u
k
u
u
u
u
u
u
k
u
k
k
u
u
u
k
k
k
u
k
u
u
u
k
u
u
u
k
u
u
k
k
u
u
u
u
u
k
u
k
u
k
u
u
u
u
u
k
k
k
k
k
u
u
u
u
u
u
k
k
u
u
k
u
k
k
k
u
k
u
u
k
u
u
u
k
k
u
u
k
k
u
u
k
k
u
k
u
u
u
u
k
k
u
u
u
u
u
u
u
k
u
k
k
k
k
k
k
u
k
k
u
u
k
k
u
u
k
u
u
k
u
u
u
k
k
u
k
u
k
u
k
k
u
k
u
u
u
u
u
u
u
k
k
u
u
u
u
k
u
k
k
k
u
k
u
u
k
k
k
u
u
k
u
k
u
u
u
k
k
u
k
u
u
u
u
k
k
u
u
u
u
k
u
u
k
k
u
u
u
k
u
k
u
u
k
k
k
u
u
k
k
k
u
k
k
k
u
u
u
k
k
u
u
u
k
k
u
u
k
k
k
k
k
u
u
k
u
k
u
u
k
u
k
k
u
u
u
u
u
u
u
k
k
k
k
u
k
k
u
k
k
k
u
u
k
k
k
u
u
u
k
u
k
u
u
k
u
k
k
u
u
u
u
u
u
k
k
u
k
k
u
u
u
u
u
k
k
k
u
u
u
k
k
k
u
u
u
u
k
u
k
k
k
k
k
k
u
u
u
k
u
k
u
k
k
k
k
u
u
k
k
k
u
u
u
k
k
k
k
u
k
u
k
u
k
k
k
k
u
u
k
u
k
k
u
k
u
u
k
u
u
u
u
u
k
k
k
u
u
k
k
u
k
k
k
k
u
k
k
u
k
u
u
u
u
k
k
k
k
u
u
u
k
k
u
u
u
u
k
k
u
k
k
k
k
u
u
u
u
k
k
u
u
k
k
u
k
u
u
u
u
u
u
u
u
k
u
k
u
k
k
u
k
u
u
k
u
k
k
k
k
k
u
u
u
k
k
k
u
u
u
k
k
k
u
k
u
u
k
u
k
u
k
k
k
u
u
u
k
k
k
u
k
u
k
k
k
k
u
u
u
k
u
u
k
k
k
u
u
k
k
k
k
k
u
u
k
u
k
u
u
k
k
k
k
k
k
u
u
k
u
u
u
k
u
u
u
u
u
u
k
k
k
k
u
k
u
u
u
k
k
k
k
u
k
k
u
k
u
u
k
k
u
k
k
u
k
k
u
u
u
k
u
k
k
u
u
u
k
k
u
u
u
u
k
u
k
k
k
u
u
u
u
k
k
u
k
k
k
u
k
u
u
k
k
k
u
k
u
u
k
k
u
u
u
k
u
k
k
u
k
u
k
u
k
k
k
u
k
u
k
k
k
k
k
u
k
u
u
k
u
u
k
k
u
k
k
u
k
u
u
u
u
k
k
u
u
u
u
k
u
u
u
k
k
k
u
k
k
k
u
k
u
u
k
u
k
u
k
k
k
k
u
u
u
u
k
u
u
k
u
k
u
k
k
k
u
k
u
u
u
k
k
k
k
u
k
k
u
k
k
k
k
u
u
u
u
u
k
u
k
u
u
u
u
k
u
u
k
u
u
u
k
k
u
u
k
k
k
k
k
u
k
u
u
u
u
k
k
u
u
u
k
k
u
k
k
k
k
u
u
k
k
u
k
u
k
k
u
k
u
k
u
k
u
u
k
u
k
k
k
u
k
k
k
k
k
u
k
u
k
k
k
k
u
u
k
u
k
u
k
u
u
u
k
k
u
k
k
k
u
u
k
u
u
k
k
k
k
u
u
u
k
k
k
k
k
u
u
u
k
u
u
u
k
u
k
u
k
k
k
k
u
k
u
k
k
u
k
u
u
k
u
k
u
k
u
k
k
k
k
u
k
u
u
u
k
k
k
k
u
k
k
u
u
k
k
k
u
u
u
u
u
k
u
u
k
u
k
k
k
k
k
u
k
k
k
k
u
u
k
u
k
u
u
u
u
k
u
k
k
k
u
k
u
u
u
k
k
k
k
k
k
u
u
k
k
k
u
k
k
u
u
u
u
k
u
k
k
u
u
u
k
k
u
u
u
k
k
k
k
k
k
u
u
k
k
k
u
k
k
k
k
k
k
u
u
k
u
k
k
k
u
k
u
u
k
k
u
u
u
u
k
k
k
k
k
k
k
k
u
u
k
k
k
u
k
k
u
u
k
u
k
u
u
k
k
u
u
k
u
k
u
k
k
u
u
u
k
u
k
k
k
u
u
u
k
u
k
u
k
k
u
k
k
k
u
k
u
k
k
u
k
u
u
u
u
u
k
u
u
u
k
k
k
k
k
u
k
u
u
u
k
u
k
u
k
k
u
u
u
k
u
k
u
k
k
u
u
k
k
u
u
k
u
k
u
u
k
k
k
u
u
k
k
k
k
k
u
k
u
k
u
k
k
k
u
k
k
u
k
k
u
k
u
u
u
u
k
k
k
k
u
u
u
k
k
k
k
u
k
u
u
k
u
k
u
k
u
u
k
u
u
k
k
u
k
k
k
k
k
u
k
k
k
k
k
u
u
u
u
k
u
k
u
k
k
u
k
k
u
k
k
k
u
k
u
k
u
u
k
k
k
u
u
k
k
u
k
k
k
u
u
k
k
u
u
k
u
u
k
k
u
u
k
k
u
k
u
k
u
u
k
k
u
k
u
u
u
k
u
k
k
u
u
u
k
k
u
k
k
k
u
u
k
u
u
k
k
u
k
k
u
u
u
k
k
k
u
u
u
u
u
u
u
u
k
k
k
k
u
k
u
k
u
u
k
k
k
u
u
u
k
u
u
k
k
u
u
k
u
u
u
u
k
k
k
k
k
u
u
u
u
u
k
k
u
k
k
k
u
u
u
k
u
u
k
k
k
k
u
k
u
u
u
u
k
k
k
u
u
k
k
k
k
u
u
u
k
k
k
u
u
u
k
u
u
u
k
k
k
u
u
k
k
u
u
u
u
u
k
k
u
u
k
k
u
u
k
k
u
u
u
k
u
k
k
u
u
k
k
u
u
u
u
k
k
k
u
u
k
k
u
k
u
u
u
u
u
u
u
k
k
k
k
k
k
k
u
u
u
k
k
u
u
u
u
k
k
k
u
k
u
k
k
u
k
u
u
k
k
k
u
k
k
u
u
k
k
u
u
u
k
k
u
k
u
u
u
k
k
k
k
u
k
u
u
k
k
u
k
k
u
u
k
k
u
u
u
u
k
k
u
k
k
u
k
k
u
u
u
k
u
u
u
k
k
k
k
u
k
u
u
u
k
u
u
k
k
k
u
u
u
k
k
u
u
k
k
u
u
k
k
k
k
k
k
u
u
u
u
u
u
u
u
k
k
u
u
k
k
k
k
u
u
k
k
u
k
u
u
u
k
u
u
u
u
u
k
k
u
k
k
u
k
k
u
k
u
u
u
u
u
u
k
k
k
k
k
u
k
k
u
k
u
k
u
u
k
u
k
k
u
k
k
u
u
u
u
u
k
u
k
k
k
k
k
u
k
u
k
u
k
k
k
u
u
k
u
u
u
k
u
k
k
u
k
u
u
u
u
u
k
k
u
k
u
k
u
u
k
u
k
u
u
k
k
k
k
u
k
u
k
k
u
k
u
u
u
u
k
k
k
u
k
k
u
k
k
k
u
u
u
k
u
u
u
u
k
k
k
k
u
u
k
k
u
k
u
k
u
u
u
u
u
u
k
k
u
k
u
k
u
u
k
k
u
k
k
k
k
k
k
u
k
k
k
k
u
k
u
k
u
u
u
u
k
k
u
k
k
k
k
k
u
k
u
k
u
k
u
u
u
u
k
k
k
k
k
k
k
u
k
k
k
u
u
k
u
k
u
u
k
k
k
u
k
k
u
k
u
k
k
u
k
u
k
u
k
k
k
u
k
u
k
u
k
u
k
k
k
u
k
k
u
u
k
u
k
u
u
u
k
k
u
u
u
k
u
u
k
k
u
u
k
k
k
u
u
u
u
k
k
u
u
u
u
u
u
k
k
u
k
k
u
k
k
u
k
u
u
u
u
u
k
k
u
u
u
u
u
u
k
u
u
k
u
u
k
u
u
u
k
k
k
u
u
u
k
k
u
k
k
k
k
k
k
u
k
u
k
k
k
u
k
u
k
u
k
u
k
u
u
k
u
k
k
k
u
u
k
k
u
u
k
u
u
u
k
u
k
u
u
u
u
k
k
u
k
k
k
u
u
u
u
k
k
u
u
k
k
u
k
u
k
u
u
u
u
k
u
k
k
k
k
k
u
k
u
k
u
k
k
k
k
k
u
u
u
k
k
k
u
k
u
k
u
k
k
u
k
k
k
u
u
k
u
k
u
u
u
u
u
u
u
k
u
u
k
u
k
u
k
u
u
k
k
u
k
k
u
u
k
u
u
k
k
k
k
k
k
u
u
u
k
u
k
k
k
k
k
k
u
u
u
u
u
u
k
k
k
k
u
k
u
k
u
u
k
u
k
k
u
u
u
k
k
k
u
k
k
u
k
k
k
u
u
u
k
u
u
k
u
k
k
k
k
k
k
k
u
u
u
k
k
k
k
k
k
u
k
u
u
u
k
k
k
k
u
u
u
u
k
u
u
k
k
k
k
k
k
k
u
u
u
k
u
k
k
u
k
u
u
u
u
u
u
u
u
k
u
k
k
k
u
k
u
k
k
u
u
u
k
k
u
u
k
u
k
u
k
u
k
u
k
u
u
u
u
k
k
k
u
u
k
k
u
u
u
k
k
k
u
k
u
k
k
k
u
k
u
u
k
k
u
u
k
u
k
k
u
k
u
k
k
k
u
k
k
k
u
k
k
u
u
u
u
u
k
u
k
u
k
k
k
u
u
k
k
u
u
u
u
k
k
k
k
k
u
k
u
k
k
k
k
u
u
k
k
k
u
k
u
k
k
k
u
k
u
k
u
u
u
u
k
u
k
k
u
u
k
u
u
k
k
k
k
k
u
k
k
u
u
u
u
k
u
k
u
u
u
k
k
u
k
k
k
k
k
u
u
u
u
k
u
u
u
u
k
u
k
u
k
k
u
k
k
u
k
k
u
u
k
u
k
k
u
k
k
k
k
k
u
u
k
k
u
k
u
k
k
k
u
k
k
u
k
k
u
k
k
u
u
k
u
k
k
k
k
k
k
k
k
u
k
k
u
k
k
k
k
u
u
u
k
u
k
u
u
u
u
u
u
u
u
k
u
u
k
k
k
k
u
u
u
k
u
u
k
u
k
u
k
u
k
u
u
u
k
k
k
k
u
k
k
u
u
k
k
u
k
u
u
u
u
k
k
u
k
k
k
u
k
u
k
u
u
k
u
k
u
k
u
k
k
u
u
k
u
k
k
u
k
u
u
u
k
u
k
k
k
k
k
u
u
k
u
u
u
u
k
k
u
u
k
u
k
u
k
u
k
k
u
u
k
k
u
k
k
u
k
u
k
u
u
k
k
u
u
k
k
u
u
u
u
u
u
k
k
u
u
k
k
u
u
u
u
k
k
u
k
k
k
k
k
k
k
u
k
u
k
k
u
k
k
k
k
u
k
k
k
u
u
u
u
u
k
k
k
k
k
u
u
k
k
k
u
k
u
k
k
u
u
k
k
k
u
u
u
u
k
u
u
k
u
k
k
k
u
u
u
u
k
k
k
k
k
k
u
k
k
k
u
k
u
u
u
k
u
k
u
k
k
k
u
u
k
u
k
k
k
k
u
k
k
k
u
u
u
u
k
k
u
k
k
u
k
k
u
k
u
k
u
k
k
u
u
u
u
k
u
u
k
u
k
u
u
k
u
u
k
u
k
k
u
u
u
u
k
u
k
u
u
k
k
k
k
u
u
k
u
u
k
k
u
u
k
k
u
u
k
k
k
k
u
k
u
u
u
u
k
k
k
k
k
k
u
u
u
u
k
u
k
u
k
k
k
k
k
k
u
k
k
u
k
k
u
u
u
u
k
u
u
k
k
u
u
k
k
u
k
u
u
k
k
u
k
k
u
u
k
u
u
u
k
k
u
u
u
k
k
u
u
k
k
u
k
u
k
u
u
u
u
u
u
k
k
u
k
k
u
u
u
u
k
k
u
u
u
k
u
u
u
u
k
k
k
u
u
u
u
k
k
k
k
k
k
u
k
k
u
k
k
k
k
u
k
u
k
u
u
u
k
u
k
k
u
k
k
k
u
k
k
k
k
u
u
k
k
u
k
k
k
k
k
u
u
u
k
u
k
u
u
u
k
k
k
u
k
u
k
k
k
u
u
u
k
u
k
k
u
u
u
u
k
u
k
k
k
k
u
u
k
u
k
u
u
k
u
u
k
k
u
k
k
k
u
k
u
k
u
k
u
k
u
u
u
u
k
u
k
k
k
k
u
u
k
k
u
u
k
k
k
u
k
k
k
u
u
k
u
u
u
k
k
u
k
k
k
u
u
k
k
u
k
k
k
k
k
u
u
u
k
u
k
k
k
k
k
u
k
k
k
k
u
u
k
k
k
u
u
u
k
u
u
k
u
u
k
u
u
u
k
u
k
k
u
k
u
u
k
u
u
k
k
u
k
k
u
u
u
k
u
u
k
k
u
k
k
k
u
k
k
k
k
k
k
k
u
u
u
u
u
k
k
k
k
u
u
k
u
u
k
k
k
u
k
k
k
u
k
u
k
k
u
k
u
u
k
k
k
k
u
k
k
u
k
u
k
u
k
u
k
u
u
u
u
k
u
k
k
k
u
u
u
u
u
u
u
k
k
u
u
k
k
u
k
u
k
u
k
k
u
u
u
u
k
u
k
k
k
u
u
u
u
u
k
u
u
k
u
u
k
u
u
u
u
k
u
u
k
u
u
k
k
u
k
u
k
u
k
u
k
u
u
k
k
u
k
k
k
k
k
k
u
u
u
u
k
u
u
u
u
u
k
k
k
u
k
u
k
k
k
u
k
k
k
k
u
k
k
k
u
u
u
k
u
u
k
u
u
u
k
k
u
u
k
k
u
k
u
u
u
u
u
u
u
k
u
u
k
k
k
u
k
u
u
u
k
u
u
u
k
u
k
u
k
u
k
u
u
k
k
u
k
u
u
k
k
k
k
u
u
k
u
k
u
u
k
u
k
u
u
k
u
u
k
u
k
u
k
k
k
u
u
u
k
u
u
k
u
k
k
k
k
k
u
k
k
k
u
k
u
u
k
u
u
k
k
u
u
u
k
k
k
k
k
u
u
u
k
u
u
u
k
u
k
u
u
k
u
u
k
u
u
u
u
u
u
k
k
u
k
u
k
u
k
u
k
u
k
k
k
u
k
k
u
u
u
k
k
k
u
k
u
u
k
u
u
k
u
k
u
u
k
k
u
u
u
k
k
u
k
k
u
k
u
u
k
k
u
u
k
k
u
u
k
u
k
u
k
k
u
u
k
u
u
u
k
k
u
u
u
u
u
u
u
u
u
k
u
k
u
k
k
k
u
k
u
u
k
u
k
u
k
u
u
u
k
u
u
u
k
u
u
k
k
k
u
u
u
u
u
u
u
k
u
k
u
u
u
k
u
u
u
u
u
k
u
k
k
k
k
k
u
k
u
k
u
k
u
u
u
k
k
k
u
u
u
u
u
u
k
u
u
u
u
k
u
u
u
u
u
k
u
k
u
k
k
k
u
u
u
u
k
u
u
k
u
k
k
u
k
k
k
k
u
k
k
k
k
k
k
k
u
k
k
u
k
u
u
u
u
k
k
u
k
u
k
u
k
k
u
u
k
k
u
k
u
k
k
k
u
u
k
k
u
k
k
u
u
k
u
k
u
k
k
k
u
k
u
k
u
k
k
u
u
u
u
k
u
k
k
k
u
k
u
k
k
u
k
k
u
k
k
k
u
u
u
k
u
u
k
k
k
u
k
k
u
k
k
u
u
u
u
k
u
k
u
k
u
k
k
k
k
u
k
u
u
u
k
u
k
k
k
u
u
k
u
k
u
u
k
k
k
u
u
k
u
k
k
k
k
u
u
k
u
u
u
u
k
u
u
u
k
u
k
k
u
u
u
u
u
k
k
k
k
u
u
k
u
k
u
u
u
u
u
u
k
k
u
k
k
u
k
u
u
u
u
k
u
u
u
k
u
u
u
u
u
k
k
u
k
u
u
k
u
u
k
u
u
k
k
u
k
u
k
k
u
k
u
k
u
u
k
k
u
k
k
u
k
k
k
u
k
k
k
u
k
k
k
u
k
k
k
k
k
u
u
u
u
k
k
k
k
u
u
u
u
k
k
u
k
u
k
u
u
k
k
k
u
k
u
u
u
k
k
k
k
u
k
u
u
k
k
k
k
u
u
k
u
k
k
k
k
u
u
u
k
k
k
k
k
u
k
u
k
k
k
k
u
k
u
k
k
k
u
k
u
k
u
u
k
u
u
k
u
u
u
k
k
u
u
u
u
k
u
k
u
u
u
k
k
u
u
u
u
k
u
u
k
k
k
u
k
u
u
k
u
u
u
u
k
k
u
u
k
k
k
k
k
u
k
k
u
k
u
u
u
u
k
u
k
k
k
k
k
u
k
k
k
k
k
k
k
u
u
k
k
k
k
k
k
u
k
u
k
k
u
k
k
u
u
u
u
u
k
k
u
k
k
k
k
k
u
u
k
u
k
k
k
k
k
k
u
k
k
u
u
k
k
u
u
k
k
k
u
k
u
u
u
u
k
k
u
u
u
k
k
k
k
u
u
k
u
u
k
u
k
u
k
u
k
u
u
k
k
k
u
k
u
u
k
k
u
u
u
k
k
k
u
u
u
k
u
u
k
u
u
k
k
u
k
u
k
u
k
u
u
u
u
u
k
u
k
k
k
k
k
u
k
k
u
u
u
k
u
u
k
k
k
u
k
k
u
k
u
k
u
u
u
u
u
k
u
k
k
k
k
u
u
u
k
k
u
k
k
u
u
k
k
k
k
u
u
k
u
k
u
u
u
k
u
k
k
k
u
k
k
u
k
k
k
u
k
u
k
u
k
k
k
u
u
k
k
u
u
u
k
k
u
u
u
u
k
k
k
k
u
k
k
u
u
u
k
k
k
u
u
u
k
k
u
u
k
k
u
k
u
u
u
k
u
u
k
u
u
u
u
k
u
u
k
k
k
k
u
u
u
u
k
k
u
u
k
k
k
k
u
u
u
k
u
k
u
u
u
k
k
u
u
u
u
k
k
u
u
u
u
u
u
u
k
u
k
k
k
u
k
u
k
u
u
u
k
k
u
u
k
k
u
k
u
k
k
k
u
u
u
u
k
u
u
u
k
k
k
k
u
k
k
k
u
u
u
u
k
u
u
u
k
u
u
k
k
u
k
k
k
k
u
k
u
u
k
k
k
k
k
u
k
k
k
u
k
k
k
u
k
u
k
k
u
k
u
k
k
u
k
k
u
u
k
u
u
u
k
u
u
u
u
k
u
u
u
k
k
u
u
u
k
u
k
u
k
u
u
k
u
u
u
k
k
u
u
k
u
u
u
k
k
k
k
k
u
k
k
u
u
u
u
u
u
k
k
u
u
u
u
u
k
u
u
u
k
k
k
k
k
u
k
k
k
u
k
k
u
k
k
u
u
u
u
k
u
k
k
u
u
k
k
u
k
u
k
u
u
u
u
k
u
u
k
u
u
k
u
u
k
u
k
k
u
u
u
k
k
u
u
u
u
u
k
u
u
u
u
u
u
k
u
u
k
u
k
u
k
u
k
u
u
u
k
k
u
u
k
u
k
k
k
u
u
k
u
k
u
u
u
k
u
k
k
u
k
u
k
k
k
u
k
u
k
k
u
u
k
u
u
k
u
u
k
k
k
u
k
k
k
u
u
u
u
k
k
k
k
k
k
u
u
k
u
k
u
u
k
k
u
u
k
k
u
u
k
k
u
k
k
u
u
k
k
u
u
k
u
k
k
u
u
u
u
k
k
k
k
u
k
k
k
k
k
k
u
k
u
u
k
k
k
k
u
u
u
k
k
k
k
u
u
u
k
k
k
k
k
k
u
k
k
u
k
u
u
k
u
k
k
u
k
u
u
u
k
u
k
k
u
u
u
u
u
k
k
k
k
u
u
k
k
k
k
k
k
u
k
u
k
k
k
u
u
u
k
k
k
u
k
k
k
u
k
k
k
u
u
u
u
k
k
u
u
k
u
u
k
k
k
u
k
k
u
u
k
u
k
k
u
u
u
k
u
k
u
k
u
u
u
u
k
u
k
u
u
k
u
u
u
u
u
u
u
k
u
k
k
k
k
u
k
u
u
k
u
k
k
u
k
u
k
u
u
u
k
u
k
k
k
k
k
k
k
u
u
u
k
k
k
u
k
k
u
u
u
u
k
u
u
k
k
k
u
k
u
u
k
k
k
k
k
k
k
u
k
u
u
k
k
u
k
u
k
k
u
u
k
u
u
k
k
u
u
k
k
k
u
k
u
k
u
u
u
u
u
k
u
u
u
u
u
k
u
u
k
k
k
u
u
k
u
k
k
u
u
u
u
k
k
u
u
u
u
u
u
k
k
k
k
u
u
u
k
u
k
k
k
u
k
k
u
k
k
k
k
u
k
k
k
u
k
k
u
u
k
k
k
k
k
u
u
u
k
u
u
u
u
u
u
k
k
k
k
k
u
k
u
u
k
u
u
u
k
k
u
u
u
k
k
u
u
k
u
u
k
u
k
k
k
k
k
u
k
u
u
u
u
u
k
u
k
k
u
k
k
k
k
k
u
u
k
k
k
u
u
k
u
u
u
u
k
u
u
u
u
u
k
u
u
k
k
k
k
u
k
k
k
u
u
k
k
u
k
k
u
u
u
k
k
u
u
k
k
k
k
u
k
k
u
k
k
u
k
u
u
k
k
u
u
k
u
k
k
u
u
u
u
k
k
u
k
k
k
u
u
u
k
k
k
u
k
k
u
k
u
u
k
u
u
k
u
k
u
u
u
k
u
k
k
k
k
k
u
u
k
u
u
u
u
u
k
k
u
k
u
k
k
k
k
u
u
u
k
u
k
u
u
k
k
u
k
k
u
k
u
k
u
u
k
u
u
u
k
k
k
k
u
k
k
k
u
u
k
k
u
k
u
k
k
u
u
k
k
u
k
u
u
u
u
u
u
k
k
k
k
k
k
k
u
k
u
k
k
u
k
u
k
k
k
k
u
u
k
k
u
k
u
k
u
u
u
k
u
k
k
k
k
u
u
k
u
u
u
u
u
k
u
u
u
k
k
u
k
k
u
k
k
u
u
k
k
u
k
u
u
u
u
k
u
k
k
u
u
u
u
k
k
u
u
k
u
k
k
u
k
k
k
u
k
u
u
k
k
k
u
u
k
k
u
u
k
u
k
k
k
u
k
k
u
u
k
k
u
u
k
u
k
u
k
u
u
k
k
u
u
k
u
k
u
u
k
k
u
k
k
k
u
k
k
u
u
k
u
u
u
u
k
k
u
u
k
u
k
k
u
u
k
u
k
k
k
u
u
u
u
k
u
u
u
k
k
k
u
k
k
k
k
k
u
u
u
k
k
u
k
k
k
u
k
k
k
u
u
u
u
u
u
k
k
k
u
u
k
k
u
u
k
u
u
k
u
k
k
k
k
k
u
k
k
u
k
u
k
k
u
k
u
k
u
u
k
k
k
k
k
k
u
k
k
u
u
u
u
k
k
u
k
k
u
u
u
u
u
k
k
k
k
k
u
k
u
u
k
k
u
k
k
k
k
u
u
k
u
u
k
u
u
u
u
k
k
k
k
k
u
u
k
k
u
u
k
u
k
k
u
k
k
k
k
u
k
u
k
k
u
k
u
u
u
k
u
k
k
k
k
k
k
u
u
u
k
u
k
k
u
u
u
k
u
u
k
k
u
u
u
u
u
k
k
k
k
u
k
k
u
k
k
k
u
u
k
k
u
u
u
u
u
u
k
k
k
k
u
u
k
k
k
u
u
u
u
k
k
k
u
u
k
k
u
u
u
k
u
u
u
k
k
k
u
u
u
k
u
u
u
k
u
u
k
k
u
k
k
k
u
u
u
u
u
u
k
u
u
k
k
u
u
k
k
k
k
k
k
u
u
k
u
k
k
k
k
u
k
k
u
u
k
k
k
u
k
k
u
u
k
k
k
u
k
k
u
k
u
u
k
u
u
u
k
k
u
u
k
k
k
u
u
u
u
k
u
k
k
u
k
u
k
k
u
k
u
u
k
u
u
u
k
u
u
u
k
u
k
u
k
u
k
k
k
u
u
k
u
u
k
k
k
k
u
k
u
u
k
k
u
k
u
u
k
k
k
u
u
k
k
u
k
u
k
k
k
u
k
k
k
u
k
k
k
k
u
u
k
k
k
u
k
u
u
u
u
k
k
u
u
k
u
k
u
u
u
u
k
u
k
k
k
k
u
k
u
k
u
k
k
u
u
u
u
k
k
k
u
u
u
u
k
u
u
u
k
u
k
u
k
u
u
k
u
u
k
u
u
k
u
k
k
u
u
k
k
k
k
u
u
k
u
k
u
k
k
u
k
u
u
k
u
u
k
k
u
k
u
u
u
u
k
k
u
k
u
k
u
k
u
u
u
u
k
k
k
k
k
k
k
k
k
u
u
u
k
u
u
k
k
k
u
u
u
k
u
k
k
u
k
k
u
k
u
u
k
u
u
u
k
u
u
u
k
k
u
u
u
k
u
u
u
u
k
u
u
u
u
u
u
u
k
u
k
u
u
u
u
u
u
u
u
k
u
u
k
k
u
k
u
k
k
u
k
u
k
u
k
k
u
u
k
k
u
k
u
u
u
u
u
k
u
u
u
k
k
u
u
u
k
u
k
u
u
k
k
u
u
u
u
k
k
k
u
u
u
k
u
k
u
k
k
k
u
u
k
k
k
k
k
u
u
k
u
k
k
u
u
u
k
k
u
u
k
k
u
k
u
k
u
k
k
u
k
k
k
u
k
u
k
u
k
u
k
k
u
u
u
u
u
k
k
k
u
k
u
u
k
u
u
u
u
k
k
u
k
u
k
k
k
k
u
u
k
u
u
k
k
k
u
k
u
u
k
k
u
k
k
k
k
u
u
u
k
u
k
k
u
k
u
u
u
u
u
u
u
u
u
u
u
u
k
k
k
u
k
u
u
u
u
k
k
u
u
k
u
u
u
u
u
u
u
k
k
u
k
u
k
u
u
k
u
k
k
u
u
u
u
u
u
k
k
u
u
u
k
u
u
u
k
k
k
u
u
u
k
u
u
k
u
k
k
u
u
u
u
u
k
k
u
u
k
k
k
u
k
k
u
k
u
k
k
k
u
k
u
u
u
k
u
u
u
u
k
k
u
u
k
u
k
u
k
k
u
k
k
u
u
k
u
k
u
u
u
u
k
k
k
u
u
u
k
u
k
k
k
u
u
u
k
k
k
u
k
k
u
k
u
u
k
k
u
k
u
k
u
u
k
k
k
k
u
u
u
k
u
u
k
k
k
u
u
k
k
u
k
u
u
k
u
k
u
u
u
u
k
u
k
k
u
k
u
u
u
k
k
u
u
u
k
k
u
k
k
u
k
u
k
k
u
u
k
k
u
u
u
u
k
u
k
u
u
u
k
k
u
u
k
k
u
u
u
u
u
u
u
k
k
k
u
u
u
k
u
u
u
u
u
k
u
k
u
k
k
u
k
u
k
k
k
u
k
u
k
k
u
u
k
u
u
u
u
k
k
k
k
k
k
k
k
u
k
u
k
u
u
k
u
k
k
k
u
u
k
u
u
u
k
u
u
u
u
u
k
k
k
u
u
u
u
k
k
u
k
u
u
k
k
u
u
u
u
k
u
k
k
u
k
u
u
u
u
k
k
k
k
k
k
k
k
k
k
k
u
k
u
u
k
k
u
k
k
k
u
u
u
k
k
u
u
k
u
k
k
u
k
u
u
k
u
u
u
u
u
k
u
k
k
u
k
u
k
k
u
k
u
k
u
k
u
u
u
k
k
k
k
k
k
k
k
u
u
u
u
k
u
u
u
u
k
u
k
k
k
k
k
k
u
u
u
k
u
u
k
k
k
k
u
k
u
u
u
k
u
k
k
u
u
u
k
k
k
k
u
k
k
u
k
u
k
k
k
u
k
u
u
u
u
u
u
u
k
u
k
k
u
u
u
u
k
k
k
k
u
u
u
k
u
k
u
k
k
k
k
u
k
u
k
u
k
k
k
u
u
k
k
k
u
k
u
u
u
k
u
u
u
u
k
u
k
u
k
k
k
k
u
u
u
u
k
u
k
u
k
u
u
u
u
u
k
u
u
k
u
u
k
u
u
u
u
u
u
k
u
u
k
u
k
u
u
k
u
u
u
u
u
k
k
u
k
k
k
k
k
k
u
k
k
k
u
u
k
u
u
k
k
k
u
u
k
u
k
k
k
u
k
u
u
u
u
u
u
u
k
k
k
u
k
u
k
k
k
u
k
u
u
u
u
u
k
k
u
u
k
k
k
u
k
k
u
k
u
u
u
u
u
u
k
k
k
k
u
k
k
k
k
k
u
u
k
k
k
k
u
u
u
u
k
u
u
k
k
u
u
k
u
u
k
u
u
k
u
k
u
k
u
k
k
u
k
u
k
k
u
u
k
k
k
u
k
u
k
u
k
k
k
k
u
k
k
k
u
u
k
u
u
u
u
k
u
k
u
k
u
k
k
u
u
u
u
u
k
k
u
k
k
u
k
u
k
k
k
u
u
k
k
u
k
k
k
u
u
u
u
k
k
k
u
u
u
u
k
u
k
u
u
u
u
u
u
u
u
u
k
k
k
u
k
u
k
u
k
k
u
k
k
u
u
k
k
u
u
u
u
u
k
u
k
u
u
k
k
k
u
k
k
k
k
u
k
u
u
u
u
k
u
k
k
u
u
k
k
u
k
u
k
k
u
k
u
u
u
u
k
k
k
u
k
u
u
k
u
k
u
u
u
k
u
k
u
u
k
k
u
u
u
u
u
u
k
u
k
k
u
u
u
u
u
u
k
u
u
u
u
k
u
u
u
k
u
k
k
k
u
u
u
u
u
k
u
k
u
k
k
u
k
k
u
k
u
k
u
k
u
u
u
k
u
k
k
u
k
k
u
k
k
u
k
u
u
k
u
u
k
u
u
k
k
u
u
k
k
k
u
u
k
k
u
k
k
u
u
u
u
u
k
k
k
k
u
u
k
u
u
k
k
u
k
k
u
u
u
u
u
u
u
u
u
k
k
k
u
k
u
k
u
k
u
k
u
k
u
k
k
u
k
u
u
k
k
k
u
u
u
u
k
u
k
k
k
k
k
k
k
k
u
k
u
u
u
u
k
u
u
k
k
k
u
u
k
u
u
k
k
u
u
u
u
k
u
k
k
u
k
k
k
u
k
u
k
u
k
k
k
u
k
u
u
u
k
u
u
u
k
k
u
u
k
k
k
u
k
k
u
k
u
u
u
u
u
k
u
k
u
k
k
u
k
k
k
k
u
u
k
u
k
k
u
k
u
k
u
u
u
k
k
k
k
u
k
u
k
k
u
k
k
u
k
k
u
k
u
k
u
u
u
u
u
u
u
u
u
u
k
u
k
k
k
k
k
u
k
u
u
u
k
k
u
u
k
u
u
u
k
k
u
u
k
k
k
u
u
k
u
k
u
k
k
u
k
k
k
u
u
k
k
k
k
k
k
u
u
u
u
k
u
k
k
k
u
k
u
k
u
k
u
u
u
k
k
k
u
u
u
k
u
k
k
k
k
k
u
u
k
u
k
u
u
u
k
k
k
k
u
u
k
k
k
k
u
k
u
k
u
u
u
u
u
k
u
k
k
u
u
k
k
k
u
k
u
k
u
k
u
k
u
u
u
k
u
k
k
u
k
k
u
k
u
u
u
k
k
u
u
k
u
k
u
k
k
u
u
u
k
u
u
u
u
u
u
k
u
k
u
u
u
u
u
u
u
u
u
k
k
u
k
u
k
u
k
u
k
k
k
k
k
k
k
k
u
u
u
k
u
k
u
k
k
k
u
u
u
k
k
k
u
u
u
k
k
k
k
k
k
k
u
u
u
u
k
k
k
u
k
u
k
k
u
u
u
u
k
k
u
u
u
k
k
k
k
u
k
k
k
k
u
k
u
k
u
u
k
k
u
k
k
u
u
u
u
u
k
u
k
k
u
u
u
u
k
u
u
u
u
u
k
k
k
k
k
k
k
u
k
u
u
u
k
k
k
k
u
u
u
k
k
u
k
u
u
u
k
k
u
u
k
u
u
k
k
k
k
k
k
u
u
u
u
k
u
k
u
k
k
u
u
k
u
u
u
k
k
u
k
u
u
u
k
u
k
k
u
u
k
u
k
u
u
k
k
u
u
u
k
u
u
u
u
k
u
u
u
k
u
u
u
k
u
u
u
k
u
k
u
u
k
u
k
u
k
u
u
u
u
k
k
k
u
k
u
k
u
k
k
k
k
u
k
k
u
u
k
u
k
u
u
k
u
k
u
k
k
u
u
k
u
u
k
k
u
u
u
k
u
k
u
k
k
u
k
k
k
u
u
k
k
k
u
u
u
k
u
u
u
u
u
u
k
u
k
u
k
u
u
k
k
u
k
u
u
u
k
u
u
u
u
k
u
u
u
k
k
k
k
k
u
k
u
u
k
u
k
k
k
k
k
u
u
u
u
k
u
k
u
k
k
u
k
u
u
k
u
u
k
k
k
u
k
u
k
u
u
u
u
u
u
u
u
k
k
k
u
u
k
k
k
k
k
u
u
u
k
k
k
k
k
k
k
u
u
k
k
u
u
k
u
k
k
k
u
k
k
u
k
k
k
u
u
k
u
k
u
u
u
u
k
u
k
u
k
k
u
k
u
u
u
k
u
u
k
u
k
u
k
k
k
k
k
k
k
k
k
u
k
u
k
k
u
u
u
k
k
k
k
u
k
k
u
k
u
u
k
u
u
u
u
k
u
u
k
u
k
k
k
k
k
k
u
k
u
u
k
u
k
k
k
k
k
k
u
k
k
k
u
k
k
k
u
u
k
u
u
k
k
k
k
u
k
u
k
u
u
u
u
k
k
u
k
u
u
u
u
k
u
k
k
k
u
k
u
u
u
k
k
k
u
u
k
k
k
k
k
u
u
u
u
k
k
u
u
u
k
u
k
k
u
u
u
u
u
u
u
u
k
k
u
u
u
k
k
u
k
u
u
u
k
u
k
u
k
u
u
k
u
k
k
u
k
k
k
u
u
u
u
k
k
u
u
k
k
k
k
u
u
u
u
k
u
k
k
u
k
u
k
k
k
u
u
k
u
u
u
u
k
u
k
k
k
k
k
k
u
k
k
u
u
u
k
u
u
k
k
k
u
k
u
u
k
k
k
u
u
k
k
u
u
u
k
k
k
k
u
u
u
u
u
k
k
u
k
u
u
k
u
k
k
u
k
k
k
u
u
u
k
u
k
k
u
u
u
k
u
k
u
k
u
u
k
u
k
k
u
k
u
k
u
k
k
k
u
k
u
u
u
k
k
u
u
k
k
k
k
u
u
k
k
u
k
k
u
k
u
k
u
u
u
u
u
k
k
k
k
k
u
k
u
u
k
u
k
u
u
k
u
k
k
k
k
k
u
k
k
k
k
k
k
u
u
k
u
u
k
k
u
u
u
u
k
k
k
u
k
u
k
k
k
u
u
u
k
u
k
u
k
u
k
u
k
k
u
k
u
u
k
k
u
k
k
k
u
k
u
u
u
k
u
k
k
k
k
k
k
k
u
k
k
u
k
k
k
u
u
k
k
u
u
k
u
k
u
k
u
k
u
u
u
k
k
k
u
k
k
u
k
u
u
k
k
k
u
k
k
u
u
k
u
u
u
u
u
k
u
k
k
u
k
k
k
u
u
k
u
k
k
u
k
u
u
u
k
k
u
u
u
k
u
k
k
u
k
k
k
k
u
k
k
u
u
k
k
u
u
k
k
k
u
k
k
u
k
k
u
k
u
u
u
u
u
k
k
u
u
u
k
u
u
u
k
u
k
k
u
k
u
u
u
u
k
k
u
u
u
k
k
k
k
u
k
u
u
k
u
u
k
u
u
u
u
k
u
k
k
k
k
k
u
u
k
k
u
k
k
k
u
u
k
k
k
u
u
k
u
u
k
k
u
u
u
k
u
u
u
k
k
k
u
k
u
u
u
k
u
k
k
k
u
u
u
u
k
k
u
u
k
k
u
u
u
k
k
k
k
u
k
k
k
k
k
u
u
k
k
u
u
k
u
u
u
k
k
u
u
u
k
u
u
k
u
k
k
u
u
k
k
u
u
k
k
u
k
k
u
k
u
u
k
k
u
u
k
u
u
u
u
u
k
k
k
k
u
k
k
u
u
u
k
k
k
u
k
k
k
k
u
u
k
k
u
k
u
u
u
k
k
u
u
u
u
k
u
u
k
k
u
u
u
u
k
u
k
k
k
k
k
k
k
k
u
u
k
k
u
u
k
u
u
u
k
u
u
k
k
u
u
k
k
k
u
u
k
u
u
k
u
u
k
u
u
k
k
u
k
u
u
u
u
k
k
u
u
u
k
k
k
u
u
u
k
k
k
k
u
u
k
u
u
k
k
k
k
k
u
k
u
u
k
k
u
u
u
u
u
k
u
u
k
u
u
k
k
u
k
u
k
u
u
u
u
k
u
u
u
k
k
k
k
u
u
u
u
k
k
k
u
k
u
u
k
k
k
u
u
u
k
u
k
u
k
k
u
u
k
k
u
u
u
u
k
u
k
u
k
u
u
u
k
k
u
k
u
u
k
k
k
u
k
u
u
k
u
u
u
u
k
k
k
u
k
k
u
u
k
k
u
u
u
u
k
u
u
k
k
k
u
u
u
k
k
u
k
k
u
u
u
u
u
k
u
u
u
k
u
k
u
u
k
k
u
k
u
u
u
k
k
u
k
u
u
k
u
k
k
k
u
k
k
k
u
k
u
k
k
u
u
k
k
u
k
u
k
u
u
k
k
u
u
k
u
k
u
k
u
u
u
k
u
k
k
u
u
k
u
k
u
k
k
k
u
u
u
k
k
k
u
k
k
k
k
k
u
k
u
k
k
u
k
u
k
k
k
u
k
u
k
u
u
k
u
k
u
u
k
u
u
u
k
k
u
u
k
k
u
k
u
u
u
k
k
u
k
u
k
k
u
u
k
u
k
k
u
k
k
u
u
u
u
u
k
k
k
k
u
k
u
k
k
u
k
k
u
u
k
u
k
u
k
k
u
k
k
u
u
u
k
k
u
u
u
u
u
k
u
k
u
u
u
k
u
u
u
k
k
k
u
u
u
k
u
u
k
u
k
u
k
u
u
k
u
k
u
u
k
u
u
u
k
u
k
k
k
k
k
k
u
u
u
u
k
u
u
k
k
k
k
u
k
u
k
k
k
u
k
u
k
k
k
k
k
u
u
u
u
u
k
u
k
k
k
u
k
k
k
k
k
k
u
u
u
k
k
k
k
k
k
k
k
k
u
u
u
k
k
k
k
k
u
k
u
k
u
u
u
u
u
u
k
k
k
k
k
k
k
u
k
u
u
u
u
k
u
k
u
k
k
k
u
u
k
k
k
u
u
u
u
u
u
u
k
u
k
u
k
k
k
u
k
k
k
u
u
u
u
k
k
u
u
k
u
u
k
k
k
u
u
u
u
k
u
k
u
u
k
k
u
u
k
k
u
u
k
u
u
k
k
u
k
k
u
u
u
k
k
k
u
u
u
u
k
k
u
u
k
k
k
u
k
u
k
u
k
k
u
k
u
k
u
u
u
k
k
k
u
k
u
u
u
k
k
u
u
u
u
u
u
u
u
u
u
k
k
u
u
u
u
u
u
k
u
u
k
k
u
u
u
u
u
u
u
k
k
u
k
u
u
u
u
u
k
k
u
k
k
k
u
k
u
k
u
k
k
k
u
k
k
u
k
u
k
k
k
k
u
k
u
u
k
k
u
k
u
k
k
u
u
u
k
k
u
k
u
u
k
k
k
k
k
u
u
u
k
u
k
u
u
k
k
u
u
u
u
u
k
u
k
u
u
k
k
k
u
u
k
u
u
k
u
u
k
u
k
u
u
u
u
k
u
u
u
u
u
k
k
u
k
u
u
k
k
k
u
k
k
u
u
k
k
k
k
k
u
u
u
u
k
u
k
k
k
k
k
u
k
k
k
u
u
u
u
k
u
k
u
u
k
u
u
k
k
u
u
k
u
k
k
k
u
u
k
u
k
u
u
u
u
k
u
u
u
u
k
u
u
k
k
u
k
k
k
u
k
u
k
k
u
k
u
k
k
k
k
k
k
k
u
u
u
u
k
k
k
u
k
k
u
k
k
u
u
u
u
k
u
k
u
u
k
u
k
k
k
k
k
u
k
k
u
u
k
k
u
u
k
u
u
u
u
k
u
u
u
u
k
k
k
u
u
k
k
k
k
u
u
k
u
u
k
u
u
k
k
u
k
k
u
u
k
u
u
k
k
u
k
k
u
k
k
u
k
k
u
u
k
u
u
u
k
u
k
k
k
k
k
u
k
k
k
u
k
k
u
k
u
u
k
k
u
u
u
k
u
u
u
k
k
k
k
k
u
u
k
k
u
k
u
k
u
u
k
k
u
u
k
u
u
k
k
u
k
k
k
k
u
k
u
k
u
u
k
k
k
u
k
k
k
k
k
k
u
k
k
k
u
u
u
u
k
u
u
u
u
k
u
k
k
u
u
k
k
u
u
k
u
u
u
k
u
k
u
u
k
k
k
k
k
k
k
k
k
k
k
u
u
k
k
k
k
k
k
k
k
k
k
u
k
k
u
u
u
u
u
k
k
k
u
k
k
u
k
k
k
u
k
k
k
k
k
u
u
u
u
k
k
u
u
k
k
u
k
k
k
k
k
k
k
u
k
k
u
k
k
u
u
u
k
u
k
u
k
u
u
k
u
u
k
u
k
u
u
k
k
k
u
k
u
u
k
u
k
k
k
k
u
k
k
k
u
u
u
k
k
k
k
u
u
k
k
k
u
k
k
u
u
k
u
k
k
u
u
u
k
k
k
u
k
u
k
u
k
k
u
k
k
u
u
u
u
u
u
k
u
k
k
u
u
k
k
k
k
u
k
k
k
k
u
k
u
u
k
u
u
k
u
k
u
u
u
u
k
u
k
k
k
k
k
k
u
k
u
u
u
k
u
u
u
u
k
k
u
k
u
u
u
k
u
k
u
k
k
k
k
u
u
k
u
k
k
k
k
k
k
k
u
k
k
k
u
k
k
k
k
u
k
u
u
u
k
k
k
k
k
k
u
u
u
k
u
k
k
k
k
u
k
u
k
k
u
k
u
u
u
u
k
k
u
k
k
u
k
k
u
u
u
u
u
k
k
k
k
u
u
k
u
u
u
k
u
u
k
u
u
k
k
u
u
k
k
k
k
u
k
k
k
k
k
u
u
u
k
k
k
u
u
u
u
u
u
u
u
u
u
k
k
u
u
k
k
u
u
k
k
k
u
u
u
k
k
u
k
u
k
k
k
k
u
u
k
u
u
u
k
k
k
u
k
k
k
k
u
u
u
k
u
k
u
u
u
u
k
k
u
u
k
k
u
k
k
k
u
u
k
u
u
u
u
k
u
k
k
k
k
u
u
u
u
u
k
u
u
k
u
k
u
u
u
k
k
k
k
u
k
u
k
k
k
k
k
u
k
k
k
u
u
k
k
u
u
u
u
k
u
k
u
k
k
u
u
u
u
k
u
k
k
u
k
k
k
u
u
u
k
u
u
u
u
k
k
u
k
u
k
k
k
u
u
u
k
u
k
u
k
k
u
k
k
k
k
u
u
k
k
u
k
u
u
k
k
k
k
u
u
u
k
u
u
u
u
k
k
u
k
u
u
u
k
k
u
u
k
k
u
k
k
u
k
k
u
k
u
k
k
k
u
u
k
k
u
k
k
u
k
u
u
u
k
u
u
u
u
k
u
u
k
u
u
k
k
u
u
k
u
u
u
u
u
k
u
k
k
k
k
k
k
k
u
u
k
k
u
k
k
k
u
u
k
k
k
k
u
u
u
k
k
k
k
u
k
k
u
u
k
k
k
u
k
k
k
k
k
k
u
k
k
k
k
k
k
k
u
k
k
u
k
k
u
k
k
u
u
k
u
u
u
u
k
k
k
k
u
k
u
u
u
k
u
u
u
u
u
u
u
u
u
k
u
u
k
u
u
u
k
u
k
u
k
k
u
k
u
u
u
u
u
u
k
u
u
k
u
u
k
u
u
k
u
u
k
k
u
k
u
k
u
k
k
k
u
k
k
k
u
u
k
k
u
k
k
u
k
k
u
u
u
k
u
k
u
u
k
u
k
k
k
k
k
u
u
u
k
u
k
k
u
u
k
u
u
k
k
k
k
k
k
k
u
k
u
k
u
k
u
u
u
k
k
u
u
k
k
k
u
u
u
k
k
k
u
k
u
k
u
u
u
u
k
u
u
k
k
u
u
k
u
u
u
u
k
u
k
k
u
u
k
k
u
k
k
u
k
k
u
u
u
u
u
k
k
k
u
k
k
u
k
u
k
k
u
u
u
u
k
k
k
k
k
k
u
u
k
u
u
u
k
k
k
u
u
u
u
u
k
k
k
k
u
u
k
k
k
u
u
k
u
u
u
k
k
u
k
u
k
u
u
u
u
k
k
u
k
k
k
k
k
u
k
k
k
u
u
u
k
k
u
u
u
u
k
u
u
k
u
k
k
k
k
u
k
u
u
u
k
u
k
k
k
u
u
u
k
k
u
k
u
k
k
u
k
u
u
k
u
k
u
u
k
k
u
u
k
u
k
k
u
u
u
u
k
u
u
u
u
k
u
u
k
k
u
u
k
k
k
u
k
k
k
u
k
u
k
k
k
u
k
u
k
k
k
k
u
k
k
u
k
u
k
u
u
k
k
u
u
u
k
k
u
u
u
k
k
u
u
u
k
k
u
u
u
u
u
u
k
k
k
k
k
k
k
u
u
k
k
u
k
u
k
u
u
u
u
k
k
k
u
u
k
u
u
u
u
k
u
u
u
k
u
u
k
k
u
u
u
k
k
u
u
u
u
u
u
k
k
u
k
k
k
k
u
k
k
u
k
u
u
u
k
k
k
k
k
k
k
u
k
u
u
u
u
u
u
k
u
u
u
k
u
u
k
u
u
k
u
k
k
u
u
u
k
u
u
k
u
u
u
k
k
u
k
u
k
u
u
u
k
u
u
u
u
u
u
u
u
u
k
k
u
k
u
u
u
u
u
u
u
k
k
u
k
u
k
k
k
k
u
u
u
k
k
u
k
k
u
k
k
k
u
u
u
u
u
u
u
u
k
u
k
k
k
u
u
k
k
k
u
k
k
k
k
u
k
k
k
k
k
u
u
u
u
u
u
u
k
u
u
u
u
k
u
k
k
k
k
u
u
u
u
u
k
k
u
u
k
u
k
u
u
k
u
u
k
u
u
u
k
k
u
k
u
k
k
u
u
u
u
u
u
k
k
u
k
k
u
k
k
k
k
k
k
u
k
u
u
k
u
u
u
k
k
u
k
u
u
k
u
u
u
u
k
u
k
u
u
k
u
u
k
u
u
u
u
k
k
k
k
u
u
u
u
k
u
k
u
u
k
u
u
u
k
u
u
k
k
u
k
u
u
u
u
u
k
k
u
u
u
u
u
u
k
k
u
k
k
u
k
u
k
u
k
k
k
u
u
u
u
k
k
k
k
k
u
k
k
k
k
k
u
k
k
u
k
u
u
k
u
k
u
u
k
u
k
u
u
k
u
k
u
u
k
u
k
k
u
k
u
k
k
k
k
k
k
k
k
k
u
u
u
k
k
u
k
k
u
k
u
u
u
u
u
k
u
k
k
k
k
k
k
u
u
u
k
u
u
u
k
u
k
k
k
u
k
u
u
k
u
k
u
k
k
u
k
k
u
k
u
u
k
k
k
u
u
k
u
u
u
k
u
u
k
u
u
u
u
k
u
u
k
u
k
k
k
k
u
u
u
k
u
k
u
k
u
u
k
k
k
k
u
u
u
u
u
u
u
u
k
k
k
k
k
k
k
k
u
u
u
u
k
k
k
u
k
u
k
k
u
k
k
u
k
u
k
k
k
k
u
k
u
u
k
k
u
u
u
k
k
k
k
k
u
k
u
u
k
u
u
k
u
k
u
u
u
k
k
u
k
u
u
u
k
k
k
u
u
k
k
u
k
k
u
k
u
u
k
k
k
k
k
u
u
k
u
u
k
u
k
k
k
k
k
u
k
u
u
u
u
u
u
k
u
u
k
u
k
k
u
u
u
u
u
k
u
u
u
u
u
k
k
k
k
u
u
k
k
u
k
u
k
k
k
u
k
k
u
u
u
u
k
u
k
k
k
u
u
k
u
u
u
k
u
k
u
k
u
u
k
u
u
u
u
k
u
k
k
u
k
k
u
u
k
u
u
k
u
k
u
k
k
u
k
k
u
u
k
k
k
u
k
u
u
u
u
k
u
u
u
k
u
k
k
u
k
k
k
u
k
k
k
k
u
k
k
u
u
k
k
k
u
k
u
k
k
u
u
k
k
k
k
u
k
u
u
k
u
k
u
u
u
u
u
u
k
k
u
k
k
u
u
k
u
k
u
k
k
u
k
u
u
u
u
k
k
u
u
k
u
u
u
k
u
k
k
k
u
u
u
k
u
u
k
k
k
u
u
k
k
u
u
u
u
k
k
k
k
u
k
k
u
u
k
u
u
u
u
k
k
u
u
u
k
k
k
u
u
u
k
u
u
u
u
k
k
u
u
k
k
u
k
k
u
k
u
u
u
k
k
u
k
u
k
k
k
k
u
k
u
u
u
k
k
u
k
k
k
u
k
k
u
u
u
k
k
u
u
k
k
u
u
u
k
u
u
k
u
u
u
k
k
k
k
u
k
k
k
k
k
k
k
k
k
u
u
u
u
k
k
k
u
u
k
k
k
u
u
u
u
u
k
u
u
u
u
u
k
u
u
k
k
u
k
u
k
u
k
k
k
u
k
u
k
k
k
k
u
k
k
u
u
k
k
k
u
u
k
u
k
k
k
u
k
k
k
u
u
u
k
k
k
u
u
u
u
u
k
k
u
k
k
u
k
k
u
k
k
u
u
k
k
u
u
u
u
k
u
k
k
u
k
k
k
k
u
u
u
k
u
k
u
u
u
u
k
k
u
k
u
u
u
k
k
u
u
k
k
k
u
u
u
u
k
k
u
k
u
k
k
k
u
u
u
u
u
u
k
k
k
u
u
u
u
k
k
k
k
k
k
u
u
u
u
u
u
k
k
k
u
u
k
k
u
k
k
u
u
u
u
u
k
u
k
u
k
k
u
k
k
u
k
k
u
u
k
k
u
u
u
k
k
k
k
k
k
u
k
u
k
k
u
k
k
k
k
k
k
u
k
u
k
u
k
k
u
k
u
u
u
u
u
k
u
u
k
k
k
u
k
k
k
u
k
k
k
u
k
k
k
u
k
u
u
u
k
k
k
u
k
k
u
k
u
k
u
u
u
k
k
k
k
u
u
u
u
u
u
k
k
u
k
u
u
k
u
k
u
k
k
u
u
u
k
k
u
k
k
u
k
u
u
k
k
u
u
k
k
k
k
k
k
u
u
u
u
k
u
u
k
u
u
k
k
k
u
u
u
u
u
k
k
k
k
k
u
k
u
k
u
u
k
u
k
k
k
u
u
u
k
u
u
u
k
k
k
u
k
u
k
k
k
u
u
u
u
k
u
k
u
u
k
u
k
u
u
u
u
u
u
u
u
u
k
u
k
u
u
u
u
k
k
k
u
u
u
u
u
k
k
u
u
u
k
k
k
k
u
u
u
k
u
u
k
k
u
u
u
k
u
k
u
k
u
k
u
k
u
u
k
u
k
u
k
u
k
k
u
k
u
k
k
u
k
u
u
u
u
k
u
k
k
u
u
k
k
k
k
k
u
u
u
u
u
u
u
k
u
u
u
u
k
k
u
u
k
k
k
k
u
k
u
k
u
k
k
u
u
u
k
u
k
u
k
u
u
u
k
u
u
u
k
k
k
k
k
k
k
u
k
u
u
u
u
k
k
u
u
k
k
k
k
k
u
k
u
u
k
k
u
u
k
u
u
u
u
k
u
u
u
k
k
u
u
u
u
u
u
u
k
u
u
k
u
u
k
k
u
k
u
u
u
k
k
k
k
u
u
k
u
k
k
u
k
u
k
u
u
k
k
k
k
k
u
k
k
k
u
k
u
u
u
u
u
k
k
k
k
k
k
u
k
u
u
k
k
k
u
k
u
k
u
u
u
k
k
u
u
u
k
k
u
u
k
k
u
k
u
u
k
u
u
u
k
u
u
u
u
k
k
k
u
k
k
u
u
u
k
u
u
k
u
k
k
k
k
u
k
u
u
k
k
u
u
k
u
u
u
u
u
u
u
k
k
u
k
k
k
k
k
k
u
u
u
u
u
u
k
u
u
k
u
u
u
u
k
k
u
k
u
k
k
k
k
u
k
u
k
u
k
u
u
k
k
k
k
k
u
u
k
k
k
u
k
u
k
k
k
u
k
u
k
u
u
u
k
u
u
k
u
k
u
u
k
u
k
k
k
k
k
k
k
u
k
u
u
k
u
k
u
u
u
k
u
k
k
u
k
k
u
u
u
k
u
k
u
u
k
u
k
k
u
u
u
u
k
u
k
u
k
k
k
u
u
k
u
u
k
k
u
u
u
k
k
u
k
u
k
u
u
u
k
u
k
k
u
k
k
k
k
u
u
u
u
k
u
k
k
k
k
u
k
k
u
k
u
u
u
u
k
k
k
k
k
u
k
k
u
u
u
k
u
k
u
u
k
k
k
k
u
k
u
k
k
k
k
k
k
k
k
u
k
k
u
u
k
u
u
u
u
k
u
u
k
k
k
k
k
k
k
k
u
k
k
k
k
u
k
k
u
k
k
k
k
k
u
u
k
k
u
u
u
u
u
k
u
u
u
u
u
k
u
k
u
u
k
k
u
u
k
k
u
u
u
u
u
k
u
k
k
k
u
u
u
u
k
k
u
u
u
u
k
u
u
k
k
u
u
k
u
u
u
u
u
k
u
u
k
u
k
k
k
k
u
u
u
k
k
k
k
u
k
u
k
u
u
u
u
k
u
u
u
k
u
u
u
k
k
k
u
k
u
k
u
u
k
k
k
k
k
u
k
k
u
k
u
u
u
u
u
k
k
k
u
k
k
u
k
u
u
u
u
k
k
u
u
u
k
u
k
k
k
u
k
k
u
k
k
u
k
u
k
k
k
u
k
u
u
k
u
u
k
k
u
k
u
u
k
k
k
k
k
k
k
u
k
k
u
k
u
k
k
u
u
u
u
k
k
k
k
k
u
k
u
k
u
u
u
u
k
k
k
k
k
u
u
k
u
u
u
k
k
k
u
u
u
u
u
k
u
u
u
k
u
k
k
k
k
k
u
k
u
k
k
k
k
k
u
k
k
k
k
k
u
u
u
k
k
k
k
k
u
k
u
u
u
u
k
u
k
k
k
k
k
u
k
u
u
u
u
k
u
k
u
k
k
k
k
u
u
u
u
u
k
k
k
u
k
u
u
u
k
k
k
k
u
u
u
k
k
k
k
u
u
k
u
k
u
k
k
u
k
k
k
k
u
k
k
u
u
u
k
u
k
k
u
k
u
k
k
u
u
k
u
k
u
k
k
k
u
u
k
u
k
k
k
k
u
u
k
k
u
u
k
k
k
u
u
u
u
k
k
k
k
u
k
u
u
k
k
u
u
k
k
k
u
k
k
k
k
u
k
u
k
u
k
u
k
k
k
u
k
k
k
k
u
k
u
k
u
k
u
k
u
k
u
u
k
u
k
k
u
k
u
k
k
k
k
k
u
k
k
k
u
k
u
u
u
u
k
k
u
u
u
u
k
u
u
u
k
u
u
u
u
k
u
k
u
k
u
k
k
k
u
k
u
u
k
u
u
u
k
k
k
u
k
k
k
k
u
k
k
u
k
k
u
u
k
u
k
u
k
k
u
u
k
k
u
k
k
k
k
u
u
k
u
k
k
u
u
u
u
k
k
k
u
u
k
k
k
u
k
u
k
k
u
u
k
k
k
u
k
u
u
u
k
u
u
u
k
u
u
u
u
u
u
u
u
k
u
k
k
k
u
k
u
k
k
k
k
u
k
u
u
k
k
k
k
u
k
u
k
u
u
u
k
k
k
u
u
k
k
k
u
u
k
k
u
u
u
k
u
u
u
u
k
u
k
k
u
u
k
u
u
k
k
u
u
u
u
u
k
k
k
u
u
k
k
u
u
u
u
u
k
k
u
k
u
u
u
k
u
u
u
k
u
u
k
u
k
k
k
k
k
u
k
u
u
u
u
k
u
u
u
u
k
u
u
k
u
k
k
u
k
k
u
k
u
u
k
k
u
k
k
u
u
k
k
u
k
u
u
u
u
u
u
u
u
u
k
k
k
u
u
k
k
k
k
u
k
u
u
u
u
k
k
k
u
u
k
u
k
k
k
k
k
k
k
u
u
k
k
u
u
u
u
k
k
u
u
k
u
u
u
u
k
u
u
u
k
u
k
k
k
k
k
u
k
u
k
u
k
u
u
u
k
k
k
k
k
u
k
k
u
k
u
u
k
u
u
k
k
u
u
u
k
u
k
k
k
k
k
u
k
k
u
k
u
k
k
k
k
k
u
u
k
u
u
k
k
u
u
k
u
u
u
u
k
k
u
u
k
u
k
u
k
u
u
u
k
u
u
u
k
u
k
u
k
k
u
k
u
u
u
k
k
k
u
u
k
u
k
u
k
u
k
u
k
u
k
k
u
u
k
u
u
u
k
u
k
k
k
k
u
k
k
u
k
u
u
k
u
u
u
k
k
u
u
k
k
u
u
k
k
k
k
k
u
u
k
k
k
k
u
u
u
k
k
k
k
k
u
k
k
u
u
u
u
k
u
k
k
k
k
u
u
u
k
u
u
u
u
k
u
u
k
u
u
k
k
k
k
k
k
u
k
k
u
k
k
k
u
u
k
u
u
u
u
u
u
k
k
u
u
k
u
u
k
u
k
u
u
u
u
k
u
u
u
k
u
u
u
u
u
k
k
u
u
u
u
u
k
u
k
k
k
u
k
u
k
u
u
u
u
u
u
u
k
k
k
u
u
k
u
k
u
u
u
u
u
k
k
u
u
k
k
k
k
u
u
k
k
u
u
u
u
u
k
k
k
k
k
k
k
u
k
u
u
u
u
k
u
u
u
k
k
u
k
k
k
u
k
k
u
k
u
k
k
u
k
u
u
u
k
u
k
k
u
k
u
u
u
u
u
k
k
k
u
k
k
u
u
k
k
u
k
u
u
k
u
u
k
k
u
k
k
k
k
u
k
k
k
u
k
k
u
u
k
k
k
u
k
u
u
u
u
k
u
k
k
u
u
k
u
u
k
u
k
u
u
u
k
k
u
u
u
u
k
k
k
k
k
k
k
u
k
k
k
u
k
u
u
k
u
k
u
u
k
k
k
u
k
u
u
u
u
k
k
u
u
k
k
k
k
u
u
k
u
u
u
k
k
u
u
u
k
u
u
k
u
u
u
u
k
u
k
u
k
k
k
u
u
u
k
u
k
k
u
k
u
k
k
k
k
u
u
u
u
u
u
u
k
u
k
u
u
k
u
u
k
k
k
u
u
k
u
k
u
u
u
u
k
u
u
k
u
u
u
k
k
k
k
k
k
u
k
u
u
k
u
k
k
k
k
k
u
u
u
k
u
k
k
k
k
k
u
k
u
k
u
k
u
k
k
u
u
u
k
u
u
k
u
k
u
u
k
k
u
k
u
u
k
u
k
k
u
u
u
u
u
k
u
k
k
u
u
u
u
k
k
k
k
u
u
k
u
u
k
u
u
k
u
k
k
k
k
k
u
u
u
k
u
k
k
k
k
k
u
u
u
k
u
u
k
k
u
u
k
u
u
u
u
k
u
k
k
u
k
u
u
u
u
k
k
k
k
u
k
u
u
u
k
u
k
k
k
k
u
k
k
u
k
k
u
k
k
u
u
k
k
k
u
k
u
k
u
u
k
k
u
u
u
k
u
u
k
k
k
u
u
k
k
k
u
k
k
u
u
k
k
u
u
u
u
k
k
k
k
u
k
k
k
k
u
u
u
u
u
u
u
u
k
u
u
k
u
u
k
k
u
k
u
k
k
k
k
k
u
k
u
u
u
k
k
k
u
u
k
u
u
k
u
u
k
u
k
u
u
u
k
u
u
u
k
u
u
u
u
u
k
k
k
u
u
k
k
u
u
k
u
u
k
k
k
k
k
k
u
u
u
u
k
u
k
u
k
u
u
k
u
u
k
k
u
u
k
u
k
k
u
u
k
k
k
k
u
u
u
k
u
u
u
k
u
u
k
u
k
k
u
u
u
k
k
k
u
u
k
u
k
u
k
u
k
u
k
u
k
u
u
u
u
u
k
u
k
u
k
k
k
k
k
k
k
k
k
k
u
k
k
k
k
k
u
u
u
k
u
u
k
k
u
u
k
k
u
k
k
u
k
k
u
k
u
u
u
k
u
k
u
k
k
u
k
u
u
k
k
u
k
k
u
u
k
k
u
k
u
u
u
u
k
k
u
k
k
u
u
k
k
k
u
k
u
u
k
u
k
u
u
k
u
u
k
k
k
k
k
u
u
k
k
u
u
k
u
u
k
k
u
k
u
u
u
u
u
k
k
k
u
k
k
k
u
k
k
k
u
k
k
u
k
k
k
k
k
k
u
u
k
k
u
u
u
u
u
u
k
k
u
k
k
u
u
k
k
k
u
u
k
u
k
u
k
u
k
k
k
u
u
k
u
u
u
u
u
k
k
k
u
k
u
u
u
u
u
u
k
k
u
k
u
u
k
k
k
u
k
k
u
k
k
u
u
k
u
k
k
k
u
u
u
u
u
u
u
k
u
k
u
k
k
u
k
u
k
u
k
k
k
k
u
k
u
u
k
k
u
u
k
u
u
k
u
k
k
u
u
k
u
k
k
k
u
u
u
u
k
u
k
k
k
k
u
k
k
k
k
k
u
k
k
u
u
u
u
k
u
u
k
k
u
k
u
k
u
u
k
u
k
k
k
u
u
u
u
k
k
k
k
k
u
u
u
u
u
k
k
k
k
u
u
u
k
u
u
k
k
k
k
k
k
u
u
u
k
u
u
k
k
k
k
u
k
k
u
k
k
k
u
u
u
k
u
k
k
k
k
k
k
k
k
k
k
k
u
u
k
u
k
k
k
k
k
u
u
u
k
u
k
k
u
k
u
u
k
k
u
u
u
u
u
k
k
u
k
u
u
u
k
u
k
k
k
u
u
u
u
k
k
k
k
k
k
u
k
k
u
u
u
u
k
k
u
u
u
u
u
k
u
k
u
k
k
u
k
u
u
k
u
k
u
u
u
u
k
k
u
u
k
u
u
k
u
k
k
k
u
u
u
k
u
u
u
u
u
k
u
u
k
u
u
k
k
u
u
u
u
k
u
u
u
u
k
k
u
k
k
u
k
k
u
u
k
k
k
u
u
u
u
k
k
k
k
k
k
k
k
u
u
u
u
k
k
u
k
u
k
k
u
k
u
u
k
u
u
k
u
k
k
k
u
k
k
u
k
k
u
k
k
k
k
k
k
k
u
u
k
u
u
u
u
u
k
u
k
k
k
u
u
k
u
u
u
u
u
u
k
k
u
k
u
k
u
k
u
k
u
k
k
k
k
k
u
k
u
u
k
k
k
k
k
u
u
u
u
u
u
u
k
u
k
k
k
k
k
k
u
u
k
u
u
k
u
k
u
k
k
k
k
u
k
k
k
u
u
k
u
u
k
k
k
u
u
u
k
u
k
u
k
k
k
u
u
k
k
k
k
k
u
k
k
k
u
u
u
k
u
k
k
u
u
k
u
k
k
u
u
u
k
k
u
u
u
u
k
u
k
k
u
u
k
u
u
u
k
u
k
k
u
k
u
u
u
u
k
k
u
u
u
k
u
u
k
k
u
k
u
u
u
u
u
k
k
k
u
u
k
u
u
u
k
k
u
u
k
k
u
k
u
k
k
k
k
u
u
u
u
u
k
k
u
u
k
u
u
u
u
u
k
k
k
u
u
u
k
u
k
k
u
k
k
k
k
k
k
u
k
k
k
u
u
k
u
k
k
u
u
k
u
k
u
u
k
u
u
u
u
u
k
k
u
u
k
u
u
u
u
u
u
u
k
k
u
u
k
u
k
k
k
k
u
u
k
k
u
k
k
u
k
k
k
k
u
k
u
u
k
k
k
k
u
k
k
k
u
u
k
u
k
k
k
k
u
k
u
k
k
k
k
u
k
k
u
k
k
k
k
k
k
u
u
k
u
u
k
u
k
k
k
u
k
u
u
u
k
u
u
u
k
k
u
u
u
k
u
k
u
u
u
k
u
k
k
k
k
u
u
u
k
k
k
k
k
u
u
k
u
k
k
u
k
k
u
k
k
k
u
u
u
k
u
u
k
k
k
k
u
k
u
k
u
k
u
k
u
k
k
u
u
u
u
k
k
u
u
u
k
u
u
k
k
k
u
k
u
k
k
u
k
k
u
k
k
k
k
k
k
u
u
k
u
k
k
u
u
u
k
u
u
k
u
k
u
k
u
k
u
u
u
k
k
k
u
u
k
u
k
u
k
k
k
u
k
u
u
u
k
u
k
k
k
k
k
k
u
k
k
u
u
u
u
k
k
k
u
u
k
k
k
k
u
u
k
k
k
u
k
k
u
u
k
u
k
k
k
u
k
u
u
u
k
k
u
u
u
k
u
u
u
u
u
k
u
k
u
u
k
k
u
k
k
u
k
u
u
k
k
k
u
u
k
u
u
k
k
u
k
k
k
k
u
k
u
k
k
u
k
u
u
u
u
u
u
u
u
k
k
k
u
k
u
k
k
u
k
k
k
u
k
k
u
u
u
u
u
u
k
k
u
k
k
u
u
k
u
k
k
u
u
k
u
k
k
k
k
u
k
u
k
k
u
u
k
k
k
k
u
u
k
u
k
k
u
k
u
u
k
k
k
k
k
u
u
k
u
k
u
u
u
u
k
k
k
u
u
u
k
u
u
u
u
u
u
k
k
u
u
k
k
k
k
k
k
k
k
k
k
u
k
k
u
k
k
k
k
k
u
k
u
u
u
u
u
u
u
k
k
u
u
k
k
u
u
k
u
u
u
u
k
k
u
k
u
k
k
k
u
u
u
k
k
k
k
k
k
k
k
u
u
k
k
k
k
u
u
u
u
u
u
u
u
k
u
k
k
u
k
u
k
k
k
u
k
k
u
u
k
k
u
k
k
u
u
k
k
k
u
k
k
u
u
k
k
k
u
k
u
u
u
k
u
k
u
k
k
u
u
u
k
u
k
u
k
u
u
u
u
k
k
u
k
u
k
u
k
k
k
k
u
u
k
u
u
u
u
k
k
u
u
u
u
u
u
k
k
u
u
k
k
u
k
k
k
k
u
k
k
k
k
u
u
k
u
k
k
u
u
u
k
k
u
k
k
u
u
u
k
k
k
u
k
u
u
k
k
u
u
k
u
k
k
k
u
k
k
u
k
k
u
k
k
u
k
u
u
u
u
k
u
k
u
k
u
u
u
u
u
u
k
u
u
k
k
u
u
u
k
u
u
u
u
u
u
k
k
k
u
k
u
k
u
u
u
k
u
k
u
k
u
k
u
k
k
u
u
k
k
k
u
k
k
k
k
u
u
k
u
u
u
k
k
u
k
k
u
u
k
u
k
k
k
u
k
u
u
u
k
u
u
k
k
k
u
u
u
u
k
u
k
k
u
u
u
k
u
u
u
k
u
k
k
k
k
u
k
k
k
k
u
k
k
u
u
k
u
u
u
k
k
u
k
u
k
k
k
u
k
k
u
k
k
k
k
k
u
u
u
k
k
u
u
k
u
k
u
u
k
u
u
k
u
k
k
k
u
u
k
u
k
u
u
k
k
u
u
u
k
u
u
k
k
k
k
k
u
u
k
k
u
k
u
u
u
u
k
u
u
k
k
k
u
u
u
u
k
u
u
k
k
k
k
k
k
u
u
k
u
u
k
u
u
k
k
k
u
k
k
u
u
u
u
u
u
k
u
k
k
u
u
u
u
u
k
u
k
k
k
u
u
u
k
k
u
k
k
u
u
u
u
u
k
k
k
k
u
u
u
u
u
u
k
u
u
k
u
k
u
k
k
u
k
k
k
k
k
u
k
k
k
u
k
u
u
k
k
u
u
k
u
k
u
k
u
k
u
u
u
k
u
u
k
k
k
k
k
u
k
u
u
u
k
k
k
u
k
u
k
k
k
k
k
u
k
k
k
k
k
u
u
k
k
k
k
k
u
u
k
u
k
u
u
k
k
u
u
k
k
u
k
u
u
u
k
k
u
u
u
u
k
u
u
k
k
k
k
k
u
u
k
k
k
k
u
u
k
u
u
k
k
u
u
u
u
k
u
u
u
u
k
u
u
k
u
u
k
u
u
u
u
u
u
k
k
k
k
u
u
k
k
k
k
k
u
u
k
u
k
k
k
k
u
k
u
k
k
u
k
k
u
k
k
u
k
u
k
u
k
k
u
u
k
k
k
u
u
u
k
k
k
u
k
u
u
k
k
k
k
u
u
k
u
k
k
k
u
u
u
u
u
k
u
k
u
u
u
u
u
k
k
u
u
k
u
k
u
k
k
u
k
u
u
u
k
k
k
u
k
u
u
k
k
u
k
k
u
k
k
u
k
k
u
k
k
u
k
k
u
u
u
u
k
k
k
u
k
k
k
k
k
u
u
u
u
k
u
u
u
u
k
u
k
k
u
k
k
k
u
k
u
k
u
k
u
k
k
k
k
k
k
u
k
k
k
u
k
k
k
k
k
k
u
u
k
u
u
k
u
k
u
u
k
k
k
k
k
u
k
k
u
u
k
u
u
u
k
u
k
k
u
k
k
k
k
k
k
k
k
k
k
k
k
k
k
u
k
k
u
k
u
k
u
k
k
k
u
k
k
k
u
u
u
k
u
k
k
k
k
u
u
k
k
u
u
u
u
k
u
u
k
k
k
u
k
k
k
u
k
u
u
u
k
k
u
u
k
k
k
u
k
u
k
k
k
k
u
u
k
k
k
k
u
u
u
k
k
u
u
k
k
k
u
k
u
k
u
u
u
u
k
k
u
k
k
k
k
k
k
k
u
k
k
u
k
u
u
u
u
k
u
k
k
k
k
u
u
k
u
k
k
k
u
k
k
k
k
k
k
k
u
u
u
k
u
u
k
u
k
u
u
k
k
k
k
u
u
u
u
k
k
u
u
u
u
u
k
k
k
u
k
u
u
u
u
u
k
u
k
u
k
u
k
k
k
k
u
u
k
u
k
k
u
u
k
u
k
k
u
k
u
k
u
u
u
k
k
u
k
k
k
k
k
k
k
u
k
k
u
u
k
u
k
u
k
k
u
u
u
k
u
u
u
u
u
k
k
u
k
u
u
k
u
k
k
k
u
k
u
u
k
u
k
u
u
k
u
u
u
k
k
u
k
k
u
u
k
k
u
k
k
u
u
k
u
k
u
k
k
k
k
k
k
k
u
k
u
k
u
u
u
u
u
k
u
k
u
u
u
u
u
u
u
k
u
u
k
u
k
u
k
u
k
u
u
u
k
u
k
u
u
k
u
u
k
u
u
k
u
k
k
u
k
k
k
k
k
u
k
k
u
u
u
u
k
k
u
k
k
u
u
k
k
u
k
u
k
u
k
u
u
u
k
u
u
u
k
u
k
u
u
u
u
u
u
u
k
u
k
k
k
u
u
u
k
k
k
u
u
u
k
k
u
k
k
k
u
k
k
u
k
k
k
k
k
k
u
k
u
k
k
u
u
u
k
k
u
k
u
k
k
k
k
k
u
k
u
u
k
k
k
u
u
u
k
u
u
k
k
u
k
k
u
u
k
k
k
u
k
u
k
k
u
k
k
u
k
u
k
u
u
u
u
u
u
u
u
k
k
k
u
k
k
k
u
k
k
k
u
u
k
u
k
k
k
k
k
k
u
k
u
k
u
u
u
u
u
k
u
u
k
u
u
u
u
u
u
u
k
u
k
u
u
k
u
k
u
u
k
k
u
u
u
k
k
k
u
k
k
k
k
k
u
u
k
u
u
k
u
k
u
u
k
u
u
k
u
u
k
k
k
u
k
k
k
k
k
k
k
u
k
k
k
k
u
u
k
u
u
k
k
k
u
u
k
u
u
k
k
u
k
k
u
k
k
u
u
u
u
k
k
k
u
u
u
u
u
u
u
k
k
u
u
k
u
u
u
k
k
u
u
u
u
k
u
u
u
k
k
k
k
k
k
u
u
u
k
u
u
k
u
k
u
k
u
u
k
u
k
u
k
u
k
k
k
u
u
k
u
k
k
k
k
u
k
k
u
u
u
k
u
u
k
k
k
u
k
u
u
u
u
k
u
u
k
u
u
k
u
k
k
u
u
k
k
k
k
k
u
u
u
k
k
u
u
u
u
u
u
k
u
k
u
k
u
k
k
k
k
u
u
k
k
k
k
k
u
k
u
u
k
k
u
u
u
u
k
k
u
u
u
k
u
k
k
u
k
u
u
k
k
u
u
u
u
k
u
u
k
u
u
k
k
k
u
k
u
u
k
u
k
k
u
u
u
k
k
k
k
k
k
u
u
k
u
u
k
k
k
k
u
u
k
u
k
u
k
u
k
k
k
k
u
k
k
u
k
u
u
k
u
k
u
k
u
k
u
k
u
k
k
k
u
k
k
u
u
u
k
u
k
k
u
u
u
u
u
u
k
k
u
u
k
k
k
u
k
u
u
u
u
u
u
k
u
u
k
u
k
u
k
k
u
u
u
u
u
k
u
u
u
k
k
u
u
k
u
u
u
k
k
u
k
u
k
k
u
u
k
u
u
u
k
u
u
u
k
k
k
k
k
u
u
u
k
u
u
u
k
k
u
u
u
u
u
u
k
k
k
k
u
u
k
u
k
u
u
k
u
u
k
u
u
k
u
u
k
k
u
u
k
u
k
u
u
k
k
k
k
u
u
k
u
k
k
k
k
k
k
k
k
k
u
u
u
u
u
k
k
k
u
u
u
u
k
u
u
u
u
k
u
u
u
u
u
k
k
u
k
k
u
k
k
k
k
k
u
k
u
k
k
k
k
u
u
k
u
k
k
u
k
k
k
u
u
u
u
u
u
u
k
u
k
k
u
u
u
k
u
u
k
u
k
k
u
u
u
u
u
k
k
u
k
u
k
u
k
u
k
k
k
k
u
u
k
k
k
k
k
u
k
u
k
u
u
k
k
u
u
k
k
u
k
k
k
u
u
u
k
u
k
k
u
k
k
u
u
u
k
u
u
u
u
u
u
u
k
k
k
k
u
u
k
k
u
k
u
k
k
u
k
u
u
u
u
k
u
u
u
k
u
k
u
u
k
k
k
k
k
k
k
u
u
k
k
u
k
u
u
u
u
u
u
u
u
k
u
k
k
k
k
k
u
u
k
k
u
u
u
u
u
k
u
k
u
k
k
u
u
k
k
u
u
k
u
k
k
u
k
k
u
k
u
u
u
u
k
u
k
k
u
u
k
u
k
u
u
u
u
k
u
k
u
k
k
k
k
u
u
u
k
u
u
u
k
u
k
u
k
u
u
k
k
k
k
k
u
u
k
k
k
k
u
k
u
k
k
k
u
k
k
k
u
k
k
u
u
k
u
k
k
k
u
u
k
k
u
k
k
k
k
u
k
k
u
u
u
k
k
k
u
u
u
u
k
u
u
k
k
u
k
k
k
k
u
k
u
k
k
u
u
k
u
k
u
k
u
u
k
k
u
u
u
u
k
k
k
u
k
k
k
u
k
k
k
u
u
u
k
u
k
k
k
u
k
u
u
k
u
u
k
u
u
u
u
u
u
u
u
u
u
k
k
k
u
u
u
u
k
u
u
u
k
u
u
k
u
u
k
u
k
k
k
k
k
k
k
u
u
u
k
u
k
k
u
u
k
u
k
k
u
k
k
u
k
u
u
k
u
k
k
k
u
u
u
u
u
u
k
u
k
u
u
u
u
k
k
k
u
u
u
k
u
u
u
k
u
u
k
k
u
k
k
k
k
u
u
k
u
u
u
k
u
u
u
k
u
u
k
k
k
u
u
k
k
k
k
k
k
k
u
u
k
k
k
k
k
k
u
k
u
u
k
u
k
k
u
u
k
k
u
k
k
u
u
u
k
k
u
u
u
u
k
k
k
k
k
k
k
k
u
u
u
k
k
k
k
u
k
k
u
u
k
k
k
k
k
k
u
k
u
u
u
u
k
u
u
u
k
k
k
u
u
u
k
k
k
k
k
k
u
u
u
k
u
u
k
k
u
u
k
k
u
u
k
u
u
k
k
k
k
u
k
k
k
k
u
k
k
u
u
k
u
k
k
k
k
u
u
u
u
u
u
u
k
u
u
k
k
u
k
u
k
u
u
u
u
u
u
u
k
k
u
k
k
u
k
u
k
u
k
u
u
u
u
u
u
u
k
k
u
u
u
k
k
k
k
k
k
k
u
k
k
k
u
u
u
k
k
u
u
k
k
k
k
u
k
k
u
k
u
u
u
u
u
u
u
u
k
u
k
u
k
u
k
u
u
k
u
k
u
u
k
u
k
k
k
k
u
k
k
k
k
k
u
k
u
u
k
k
u
k
k
k
u
u
u
u
k
k
u
k
u
k
k
u
k
k
k
u
k
u
k
u
k
u
k
u
k
u
u
u
u
k
k
u
k
u
u
k
u
u
k
u
u
k
k
u
u
u
k
u
k
k
u
k
u
u
u
k
u
u
k
u
u
u
k
u
k
k
k
u
u
u
u
k
k
k
u
u
k
k
u
k
u
k
k
k
u
u
k
k
u
k
u
k
u
k
u
u
u
k
u
k
u
k
u
u
u
u
u
k
u
k
k
u
k
k
k
u
k
k
k
k
u
k
k
u
u
k
k
u
k
k
k
u
k
k
u
k
u
k
u
u
u
u
u
u
k
u
k
u
u
u
u
k
k
u
k
u
k
k
k
k
u
k
k
k
u
u
u
u
u
k
k
k
k
u
u
u
k
u
u
u
k
u
u
u
k
u
u
k
k
k
k
u
k
u
k
u
k
k
k
u
u
k
u
u
k
u
k
k
k
u
u
u
u
u
u
k
u
u
u
k
k
k
k
u
k
k
u
u
u
u
u
u
u
u
k
k
k
u
u
k
k
u
u
u
k
u
k
k
u
u
u
k
k
k
u
k
u
u
k
k
k
u
u
u
u
u
k
u
u
u
u
u
u
k
k
k
u
u
u
u
u
u
k
u
u
u
u
k
u
u
k
u
u
u
u
k
k
u
k
k
u
u
u
u
u
k
u
u
k
u
u
u
u
u
u
k
k
u
u
k
u
k
u
u
u
u
k
u
u
u
k
u
k
k
u
u
u
u
k
k
k
k
u
k
k
k
k
k
u
u
u
u
u
k
k
k
u
u
u
u
k
k
u
k
u
u
k
k
k
k
u
k
k
u
u
u
u
k
u
u
u
k
u
k
u
u
k
u
k
u
u
k
k
k
u
u
u
u
k
u
u
k
u
k
u
u
k
u
u
k
k
u
k
u
u
k
k
k
k
u
u
k
u
k
u
u
k
u
k
u
k
u
u
u
u
k
u
u
k
k
u
u
k
k
u
k
u
u
u
k
u
u
u
k
k
u
u
u
k
u
u
k
u
u
k
u
u
k
k
u
u
k
u
k
k
u
u
u
u
u
u
u
k
u
k
k
k
u
u
k
u
k
u
u
u
k
k
u
k
k
k
u
u
k
k
u
k
k
k
u
u
k
u
k
k
u
u
k
u
k
k
u
k
k
k
k
k
k
k
u
u
u
u
u
k
u
k
k
u
k
u
k
u
k
u
u
u
k
k
u
u
k
k
k
k
u
k
k
k
k
u
k
k
k
k
u
u
k
u
k
u
u
k
k
u
k
u
k
k
k
k
u
u
k
u
k
u
k
k
u
u
u
k
u
u
k
k
k
k
u
k
k
u
u
k
k
k
u
u
k
k
u
k
u
k
u
u
k
u
u
u
k
u
k
k
u
u
u
u
u
k
u
k
k
k
u
k
u
k
u
k
u
u
u
k
u
k
u
u
k
u
k
k
u
u
k
u
u
u
k
k
k
k
u
k
k
k
u
u
u
k
u
k
k
k
u
u
k
k
k
k
u
k
u
u
u
k
u
u
k
u
k
u
u
u
k
k
u
k
k
u
k
k
u
k
k
u
u
k
u
k
k
k
k
u
k
k
k
u
u
k
k
u
k
u
k
u
u
k
k
k
k
u
u
u
u
u
k
k
u
k
u
u
k
u
k
u
u
k
u
k
u
u
k
u
u
k
k
k
k
k
k
u
u
u
k
u
k
k
u
u
k
k
k
u
k
u
k
k
k
u
u
u
u
u
k
k
u
u
k
u
k
k
k
k
u
k
k
u
k
u
u
k
u
k
k
u
u
u
k
k
u
k
k
k
u
u
k
k
k
k
u
k
k
k
u
k
u
u
k
u
u
k
k
k
u
u
k
k
k
k
k
k
k
u
k
k
u
k
u
u
k
u
u
k
k
k
u
k
u
k
k
u
k
u
u
u
u
k
k
k
k
k
u
u
k
u
u
u
k
u
u
u
k
k
k
k
k
k
u
k
k
u
u
u
u
u
k
k
k
u
u
k
k
u
k
k
k
k
k
k
u
k
k
u
u
k
u
k
k
k
k
u
u
k
k
k
k
u
k
u
u
k
k
u
u
u
u
u
u
k
u
k
k
k
k
k
k
u
k
u
u
k
u
u
k
u
k
u
u
k
k
u
u
k
k
k
u
k
k
k
k
u
k
k
u
k
u
u
k
u
k
k
u
k
k
k
k
k
k
k
u
k
u
u
k
k
u
k
k
u
k
u
u
k
k
u
u
u
k
k
k
u
u
k
u
u
k
k
k
u
u
u
u
k
u
u
u
u
u
u
u
k
u
k
k
u
k
u
u
u
u
k
u
u
u
u
k
k
u
k
u
u
k
u
k
k
u
k
k
u
k
u
k
k
u
u
k
k
k
u
k
k
k
k
u
u
k
k
k
k
k
k
k
k
k
k
u
k
k
k
u
k
k
k
u
u
k
k
k
u
u
k
k
k
u
k
u
u
u
u
k
u
u
k
k
u
u
k
k
k
u
k
k
k
u
k
u
k
k
u
u
k
u
k
k
k
k
k
k
u
k
k
k
u
k
u
u
u
k
u
k
k
k
u
u
u
k
u
k
u
k
u
k
k
u
u
k
k
k
k
u
k
k
k
k
u
u
u
u
u
u
k
u
k
k
k
k
u
k
k
u
k
k
k
u
u
k
u
k
u
u
u
k
k
k
u
k
k
u
u
k
u
u
u
u
u
u
k
u
k
u
k
k
k
u
u
k
u
u
k
k
u
u
k
k
k
k
k
k
u
u
u
u
u
u
k
k
k
k
k
u
u
u
k
k
u
k
k
u
k
k
k
k
u
u
k
u
u
u
u
k
u
k
u
k
u
u
k
k
u
k
u
u
k
k
k
k
u
k
k
u
u
u
k
k
k
u
u
k
u
u
k
u
u
k
u
u
k
k
u
u
k
u
k
k
k
u
u
u
k
u
k
k
k
u
u
u
k
u
u
u
k
k
u
k
k
u
u
k
k
u
u
u
u
k
u
k
u
k
u
k
k
u
u
k
u
u
k
u
k
u
u
u
u
k
k
u
k
u
u
k
u
u
k
u
u
k
u
u
u
u
k
u
k
u
u
u
k
u
u
k
k
u
k
k
k
k
k
u
u
k
u
u
u
u
k
u
u
u
k
u
u
u
u
k
u
k
k
k
u
k
k
u
u
k
u
k
u
u
k
u
u
u
k
u
u
k
u
k
k
u
u
k
k
k
u
u
k
u
k
u
u
u
k
u
u
u
k
k
u
u
k
k
u
k
u
u
k
k
k
u
u
k
u
u
u
u
k
u
u
k
u
u
u
k
u
u
u
k
u
k
u
u
u
k
k
k
u
u
k
u
k
u
u
u
k
u
u
u
k
u
k
u
k
u
k
u
u
k
k
k
u
u
u
u
k
u
u
u
u
k
u
k
u
u
u
k
u
k
k
k
k
k
k
u
k
k
k
u
u
u
k
k
k
u
k
u
u
k
k
u
u
k
u
u
k
k
u
k
u
k
u
u
k
k
u
u
u
k
u
k
u
u
k
k
u
k
k
u
u
u
u
u
u
u
k
k
u
u
u
u
k
u
u
k
u
u
k
u
k
u
k
u
u
u
k
k
k
k
u
k
u
k
u
u
u
k
u
k
u
k
k
k
k
u
k
k
k
u
u
k
u
u
k
k
u
u
u
k
k
k
k
u
u
u
u
k
k
k
k
k
u
u
k
u
u
k
u
k
k
u
k
k
u
k
u
k
u
u
k
k
k
k
u
k
u
k
u
u
k
k
u
u
k
u
u
k
u
u
k
u
u
k
u
k
u
k
u
u
k
u
k
u
k
k
k
k
u
k
u
u
u
u
k
k
u
u
u
k
k
u
k
u
u
u
k
k
k
k
k
u
k
u
k
k
k
k
k
u
k
u
k
k
k
k
k
u
u
u
u
k
u
u
u
k
k
k
k
k
u
k
k
k
k
k
k
u
k
k
u
k
u
k
u
u
u
k
k
k
u
k
u
u
k
k
k
k
u
u
u
u
u
k
k
k
u
u
u
k
k
u
k
u
k
u
k
k
k
k
k
u
u
u
k
u
u
u
u
u
k
k
k
k
u
k
u
k
k
u
u
k
u
k
k
k
k
k
k
u
k
u
u
u
k
u
k
u
u
k
u
u
k
u
u
k
k
k
k
k
k
u
u
u
k
u
k
u
u
u
u
u
u
u
u
u
k
u
u
k
u
u
k
k
u
k
u
u
u
u
k
u
u
k
k
u
k
u
u
k
u
u
k
u
k
u
k
u
u
k
u
u
k
k
u
k
u
u
k
u
u
k
u
u
k
u
u
k
k
u
u
u
u
u
u
u
k
k
k
u
u
u
u
k
k
k
u
k
k
k
u
k
k
u
u
k
k
k
u
k
k
u
u
k
u
k
k
k
u
u
k
u
k
u
k
k
u
k
u
u
u
k
u
k
k
k
k
u
u
k
k
u
u
u
u
k
k
k
k
u
k
u
k
k
u
u
u
u
k
k
u
k
u
u
u
k
u
k
u
k
k
k
u
k
k
u
k
u
k
u
u
u
u
k
k
k
u
k
u
u
k
u
k
k
u
k
k
u
u
k
u
k
k
u
u
k
u
u
k
u
k
k
u
u
k
k
k
k
u
k
k
u
u
u
k
u
k
u
u
k
k
u
k
u
k
u
k
k
u
k
k
u
k
u
u
u
u
k
k
u
u
k
u
u
u
u
u
u
k
k
k
k
k
u
u
u
u
u
k
u
k
k
k
k
k
u
u
k
k
u
u
k
k
k
u
u
k
u
k
u
k
u
u
k
u
k
u
u
u
k
u
k
u
k
k
k
k
u
u
k
u
u
u
k
k
u
u
u
k
k
k
u
u
k
u
k
k
u
k
k
u
k
u
k
k
u
k
k
u
k
k
u
k
u
k
k
k
k
u
k
u
u
u
u
u
k
u
u
k
u
u
k
k
k
u
u
u
k
u
k
u
u
k
u
k
u
u
u
k
u
k
u
u
k
u
k
k
u
u
k
k
u
k
k
u
k
k
u
u
u
k
k
u
k
k
k
u
u
u
k
u
k
k
k
u
k
k
k
k
u
u
k
u
u
k
u
u
u
u
k
k
k
k
k
k
k
u
k
k
k
k
u
u
u
u
u
k
k
k
k
u
u
k
k
u
k
k
k
u
k
k
u
k
k
u
u
u
k
k
u
u
u
u
u
k
u
u
u
u
k
k
k
u
k
u
u
k
u
u
k
u
k
u
u
u
u
k
k
k
k
u
k
u
k
u
u
u
u
k
k
u
k
u
u
u
k
u
k
k
k
u
u
k
k
u
k
u
u
u
k
k
k
k
u
k
u
u
u
u
k
u
u
k
k
u
k
k
u
u
u
k
k
u
k
u
k
u
u
u
k
u
k
u
k
u
k
u
u
k
u
u
u
u
k
k
u
k
k
k
u
u
u
u
u
k
k
k
k
k
k
u
k
u
k
k
u
u
u
k
u
u
u
k
k
k
u
k
u
u
k
k
u
u
u
k
u
k
u
k
u
k
u
u
u
k
u
u
u
k
u
k
u
u
k
k
k
u
u
k
u
k
u
k
k
u
k
u
k
k
u
k
u
u
u
k
k
u
k
u
k
u
u
u
k
k
u
k
k
k
u
k
u
k
k
k
k
u
u
k
u
u
k
u
k
k
u
u
u
k
u
k
k
u
u
k
k
u
k
k
k
k
k
u
k
u
k
u
k
u
k
u
u
u
k
u
k
k
k
u
u
u
u
k
k
k
u
k
k
k
k
k
k
k
k
k
u
k
u
k
u
k
k
u
u
u
u
u
u
u
u
k
k
k
k
u
u
k
k
k
k
k
u
u
u
k
k
k
k
k
u
k
k
k
u
k
k
u
k
k
u
k
u
k
u
u
u
k
k
k
u
k
u
k
k
k
u
k
u
k
u
u
u
k
u
u
u
u
u
k
u
k
k
k
k
u
u
u
u
u
k
k
u
k
u
u
u
u
k
k
u
u
k
u
u
k
u
k
u
u
u
k
u
k
k
k
k
u
k
k
u
u
u
u
k
k
u
u
k
u
k
k
k
u
u
k
k
u
k
k
u
u
u
k
k
u
k
u
k
u
u
u
u
u
u
u
k
k
k
k
u
u
k
k
u
k
k
u
u
k
u
k
k
u
u
u
u
k
k
u
u
u
k
k
k
u
k
u
k
k
u
k
k
k
k
k
k
k
k
k
k
k
k
u
u
u
k
u
u
k
u
k
u
k
u
u
u
k
k
u
u
k
u
k
u
k
u
u
k
k
u
k
k
u
u
u
k
u
k
k
u
k
u
u
u
k
k
u
k
u
k
u
k
k
u
u
u
u
u
u
u
u
k
u
u
u
k
k
u
k
k
k
k
u
u
k
u
u
u
u
u
u
k
k
k
u
u
k
k
k
k
u
u
u
u
u
k
k
k
k
k
k
k
u
k
u
k
u
u
u
k
k
u
u
u
k
u
u
u
u
u
k
u
u
u
u
u
k
k
k
u
u
u
u
u
k
u
u
u
k
k
u
u
k
k
u
k
u
k
u
u
u
u
u
k
k
k
k
k
k
u
u
k
u
u
u
u
k
k
u
u
k
k
u
u
k
u
u
u
k
u
u
k
k
k
u
u
k
k
u
k
u
u
k
k
u
u
u
k
k
k
u
u
k
u
k
u
u
k
u
k
u
u
u
u
u
u
k
k
k
k
u
k
u
k
u
k
k
k
u
u
k
u
k
k
k
u
k
k
k
k
u
k
u
k
k
u
u
k
u
k
u
u
u
k
k
u
k
u
k
k
k
u
u
k
k
u
u
k
k
u
k
u
u
k
k
k
u
k
u
k
u
k
u
u
u
u
k
k
k
k
k
u
k
u
u
u
k
k
u
k
u
u
k
u
u
u
u
k
k
k
u
u
u
u
k
u
k
k
k
k
u
k
u
k
k
k
k
k
u
u
k
u
k
k
u
u
u
u
u
u
u
k
k
k
u
u
k
k
u
k
u
u
k
k
k
u
u
k
k
u
u
u
k
u
u
k
k
k
u
u
k
k
u
k
k
k
k
u
k
u
u
k
u
k
k
u
u
u
u
u
k
k
u
k
u
k
k
u
u
u
u
k
k
u
u
k
u
k
k
k
k
u
k
u
k
k
u
k
u
u
k
k
k
k
k
k
u
u
k
k
u
k
u
u
k
k
u
u
k
k
k
u
u
k
k
u
u
k
u
u
k
k
k
k
u
k
u
u
k
u
u
u
u
u
u
k
k
k
u
u
k
k
k
k
k
k
u
k
k
u
k
u
u
k
k
u
u
k
u
k
k
k
u
k
u
u
u
u
k
k
u
k
u
k
k
k
k
k
u
u
k
k
u
u
u
k
u
u
u
k
u
k
u
u
k
k
u
k
u
k
u
u
k
u
u
k
k
k
k
u
k
u
u
u
k
u
u
k
u
u
u
k
u
k
u
u
u
k
u
k
k
k
u
u
u
k
u
k
k
k
k
k
k
k
k
k
u
k
u
u
u
u
u
k
u
u
u
u
u
k
k
k
k
k
k
u
u
u
u
k
u
u
k
k
k
k
k
u
u
u
u
u
u
k
u
u
k
u
u
u
u
k
k
u
u
k
k
u
u
u
k
u
u
k
u
k
u
u
k
k
k
u
k
u
u
k
u
k
u
u
k
k
k
k
k
k
u
k
k
u
k
u
k
u
u
k
u
k
k
k
k
k
k
k
u
u
k
u
k
u
k
k
u
u
k
u
u
u
k
u
u
u
k
k
u
u
k
u
u
k
u
k
u
u
u
k
u
u
k
k
u
k
u
u
u
k
u
k
k
k
k
k
u
u
k
u
u
u
u
u
k
u
k
u
u
k
k
k
k
u
u
k
k
k
u
u
k
u
k
u
u
k
u
k
u
k
u
k
u
u
k
k
u
k
k
u
k
u
k
u
u
k
u
k
u
k
k
u
u
k
u
u
k
k
k
u
k
u
u
u
u
u
k
u
u
u
u
u
k
u
u
k
k
k
u
u
k
u
k
k
k
k
k
k
u
u
k
u
k
u
k
u
u
k
u
k
k
u
k
u
u
u
u
k
k
u
u
u
u
k
u
k
u
k
k
u
u
u
u
u
u
u
u
u
k
u
u
u
u
u
u
k
k
k
u
k
u
k
u
u
u
k
u
u
k
k
u
u
k
k
k
k
u
k
k
k
k
k
u
u
k
u
k
u
u
u
u
k
u
k
k
u
u
k
k
k
k
u
u
k
u
k
u
u
u
u
u
u
u
k
u
u
k
k
k
k
k
u
u
u
k
k
u
u
u
u
k
u
u
k
u
u
u
k
u
u
u
k
u
k
u
k
u
u
k
k
u
u
k
k
k
k
u
k
u
u
k
k
k
u
k
k
k
u
u
k
k
k
u
k
u
u
u
k
u
k
u
u
k
k
k
k
k
u
k
k
k
k
k
k
u
k
u
k
u
u
u
k
u
u
k
k
k
k
u
u
k
k
u
u
k
u
u
k
k
u
k
u
u
k
k
u
k
u
u
u
u
u
k
k
k
u
u
u
k
k
k
k
u
u
u
u
k
u
u
k
k
k
u
k
u
k
k
k
u
u
k
k
u
k
u
u
k
k
k
k
u
k
k
u
k
k
u
k
k
u
k
k
u
k
k
k
k
u
k
u
k
u
k
u
k
k
k
u
k
u
k
k
u
u
k
u
u
u
k
k
u
k
k
u
k
k
u
k
k
u
u
k
k
u
k
u
k
k
k
k
u
u
u
k
u
u
u
u
k
k
u
u
u
k
u
u
k
u
k
u
k
k
u
u
k
k
u
u
k
k
k
u
k
k
u
u
k
u
u
k
u
u
k
u
k
k
k
k
u
u
k
k
u
u
k
u
k
u
u
u
u
k
k
u
u
k
u
u
u
u
u
u
u
k
k
k
k
u
u
u
k
k
u
u
u
u
k
u
u
u
k
u
u
k
u
k
k
k
u
u
u
u
u
k
k
u
k
u
u
u
u
u
k
u
k
k
k
k
u
k
u
u
k
k
u
u
u
k
k
k
u
u
u
k
k
k
u
k
u
k
u
k
k
k
k
k
k
u
u
k
k
k
k
k
u
u
u
k
k
k
k
k
k
k
k
u
k
k
u
u
k
u
u
u
k
k
k
k
k
u
k
k
k
k
u
k
k
k
k
k
k
k
u
k
k
u
k
k
k
k
k
k
u
u
u
u
u
u
u
u
k
k
k
u
k
k
k
k
k
u
k
u
u
u
u
u
k
k
u
k
u
u
u
k
k
u
k
u
u
u
u
u
k
u
k
k
u
k
k
u
u
k
k
k
u
u
u
u
u
k
k
k
k
u
u
u
k
u
k
u
k
k
u
k
u
u
k
k
k
k
k
u
u
k
u
u
u
k
k
k
k
u
k
k
k
u
k
u
k
k
u
k
k
u
u
u
u
u
k
k
u
u
u
k
u
k
k
k
u
u
u
u
u
k
k
k
k
u
k
u
k
u
k
u
u
k
k
k
k
u
k
k
k
u
k
k
k
k
k
k
k
k
k
k
k
k
u
u
k
k
k
u
u
k
k
k
u
u
u
k
k
u
u
u
k
u
k
k
k
u
k
u
k
u
u
k
u
k
u
k
k
u
u
u
u
u
k
u
u
u
k
k
u
k
u
k
u
u
k
k
u
u
k
u
u
u
u
k
k
k
k
u
u
k
u
k
u
k
u
u
u
u
k
k
u
k
u
u
u
k
k
k
k
u
k
u
u
k
u
k
u
k
k
u
u
k
u
k
u
u
u
u
u
u
k
k
u
u
k
u
u
k
u
u
k
u
k
k
u
k
k
k
u
k
k
k
k
u
k
u
k
u
u
u
k
u
u
k
k
u
k
k
u
u
k
k
u
k
k
k
k
u
k
u
u
k
k
k
k
u
u
k
k
u
u
u
u
k
k
k
u
k
k
u
k
k
k
u
k
k
u
k
u
k
u
u
u
k
u
u
u
u
u
u
u
u
k
u
k
u
k
u
u
u
k
k
u
k
k
k
u
k
u
u
k
u
k
u
k
k
u
k
k
k
u
u
k
u
k
u
k
u
u
u
u
u
u
u
u
k
k
k
k
u
k
k
u
k
k
k
k
k
k
u
k
u
k
k
u
u
k
k
u
k
u
u
u
u
k
k
k
u
u
k
u
u
k
k
k
u
k
u
k
u
u
k
u
u
u
u
u
k
u
k
u
k
k
k
u
k
k
u
k
u
u
k
u
u
k
k
k
u
k
k
k
k
k
u
u
u
u
u
u
u
k
u
k
u
k
u
u
u
k
k
k
u
u
u
u
u
k
k
k
u
u
k
k
u
u
k
k
u
u
u
u
u
u
k
k
k
u
k
u
u
k
k
u
u
u
u
k
u
u
u
u
k
u
u
k
k
k
k
u
k
u
u
u
u
u
u
k
k
k
u
k
u
k
k
k
k
u
k
u
k
u
u
u
k
u
u
u
u
k
u
k
k
u
k
k
k
u
k
u
u
k
k
k
k
k
k
u
u
k
k
u
u
k
u
u
u
k
k
k
u
u
k
k
k
u
k
u
u
u
u
u
u
k
u
k
u
u
u
k
k
u
k
k
k
u
k
k
k
u
u
k
k
u
k
u
k
u
k
k
u
u
u
k
k
k
u
u
u
k
k
k
u
k
u
k
u
k
k
u
u
u
k
u
u
k
k
k
u
u
u
k
k
u
u
u
u
u
k
u
u
k
u
k
u
u
k
u
k
u
k
k
k
u
k
u
u
k
u
k
u
k
u
k
u
k
k
k
u
u
k
k
k
k
u
u
u
u
k
u
k
k
u
u
u
k
k
u
k
k
k
u
u
k
u
u
k
u
u
u
u
u
u
u
k
u
u
k
k
u
u
k
k
u
k
u
k
u
k
u
k
u
k
k
k
u
k
k
u
u
k
u
u
k
k
k
k
u
k
k
u
u
u
k
u
k
k
k
k
u
u
k
u
u
k
k
u
u
u
k
k
k
k
u
k
u
k
k
u
u
u
k
u
u
k
k
k
u
u
u
u
u
k
u
k
u
k
k
k
u
u
u
k
k
u
k
u
u
u
u
k
k
k
u
u
u
k
u
u
k
k
k
k
u
u
k
k
u
u
u
k
u
k
k
u
k
u
k
u
u
k
k
k
u
k
k
u
k
u
k
k
k
u
u
u
k
u
u
k
u
k
u
k
k
u
k
k
u
k
u
u
k
k
k
u
k
u
k
k
u
k
u
k
k
u
u
k
u
u
k
k
u
k
k
u
u
k
k
u
k
k
u
k
k
k
k
u
u
k
u
k
u
u
k
u
u
u
k
u
u
k
k
k
u
k
u
k
u
k
k
u
u
u
u
k
u
k
k
k
u
k
u
k
k
u
u
u
u
k
u
u
u
u
k
k
k
k
k
u
u
u
u
k
u
k
k
u
k
k
k
k
u
u
k
k
k
k
k
k
k
k
k
k
k
u
k
u
u
u
u
u
u
k
u
u
u
k
k
u
k
k
u
u
k
k
k
k
k
u
u
k
u
k
k
u
u
u
u
k
u
u
u
k
k
u
u
k
k
k
k
k
k
u
k
k
k
u
k
k
k
k
k
u
k
u
u
u
k
u
u
k
u
k
k
k
k
u
k
k
u
k
u
u
k
u
k
k
u
k
u
u
k
u
k
u
k
u
u
k
u
k
u
u
u
k
u
u
k
u
u
u
k
u
u
u
k
k
u
u
u
u
u
k
k
u
u
u
u
u
u
u
u
u
k
k
u
k
k
k
k
k
u
k
k
u
k
k
u
k
k
u
u
k
u
u
u
u
u
k
k
u
k
k
u
k
u
k
u
k
u
u
u
k
u
u
k
k
u
k
k
k
u
k
u
u
u
k
k
u
u
u
k
k
u
u
k
k
k
u
k
k
k
u
k
k
k
u
u
k
u
u
k
k
u
k
u
u
u
k
k
u
u
k
k
k
k
u
u
k
u
u
k
u
k
u
k
u
u
k
u
u
k
u
k
u
k
u
u
u
k
u
u
u
k
u
k
u
k
u
u
u
k
u
k
u
u
u
u
k
k
k
k
k
k
u
k
k
u
u
k
k
u
u
k
k
k
k
k
k
u
u
u
u
k
k
u
u
k
u
k
u
k
u
k
u
u
k
k
k
k
k
k
u
u
u
u
u
u
u
k
u
u
k
k
k
k
u
u
k
k
k
u
k
k
k
u
k
u
k
u
u
k
k
u
k
u
u
u
u
k
k
u
u
k
u
k
u
k
u
u
u
u
u
u
k
k
k
k
k
u
u
k
u
k
u
u
u
u
k
u
k
u
u
k
u
u
u
u
k
u
u
u
u
u
u
u
k
k
k
k
k
k
k
k
k
u
k
k
u
u
u
u
u
k
u
u
k
u
k
k
u
u
u
u
u
u
k
u
u
k
u
u
k
k
u
k
u
u
u
u
u
k
k
u
k
u
u
k
u
u
u
u
k
u
u
u
u
k
k
k
u
k
u
k
k
k
k
k
k
k
k
k
u
u
k
k
u
k
k
u
u
u
k
k
u
u
u
u
k
k
u
u
u
u
k
k
k
u
u
u
k
u
u
u
k
k
u
k
k
u
k
k
u
u
k
u
k
u
u
u
u
u
k
u
k
k
k
u
k
k
u
k
k
k
u
k
k
u
u
k
u
u
k
u
u
k
u
u
k
k
u
k
k
k
k
k
k
u
u
k
u
k
k
u
u
u
k
k
u
u
u
k
k
k
u
k
k
u
k
u
u
u
k
k
k
k
u
u
u
u
k
k
u
u
u
u
u
u
u
k
k
u
k
u
k
u
u
u
u
u
k
k
u
k
k
k
u
u
u
k
u
u
u
u
u
u
u
u
u
k
u
k
k
k
u
k
k
u
k
k
k
u
u
k
k
u
u
u
k
u
k
u
k
u
u
u
u
k
k
k
u
u
u
k
u
k
u
u
u
k
k
u
k
k
k
k
u
u
u
k
u
k
u
u
k
u
k
u
u
u
k
k
k
u
u
u
u
u
k
k
k
k
k
u
k
u
u
k
k
u
k
u
k
k
k
k
k
k
k
u
k
k
k
k
k
u
u
k
k
k
u
u
k
u
k
u
u
k
u
k
u
u
u
u
k
u
k
u
u
k
u
k
u
u
k
u
u
k
u
u
u
u
k
u
k
k
u
u
k
u
u
u
u
u
k
k
u
k
k
k
k
u
u
k
u
k
k
k
k
u
k
k
k
k
u
u
k
u
k
u
k
k
k
k
u
u
u
u
k
k
k
u
u
u
u
u
u
k
u
u
u
k
k
u
u
u
u
u
k
k
k
u
u
k
k
u
u
k
k
k
k
u
k
k
u
u
u
u
u
k
u
u
k
u
k
k
k
u
u
k
k
k
u
u
k
k
u
k
k
k
k
k
k
k
k
k
k
k
u
u
u
u
u
u
k
k
k
u
k
u
k
u
u
k
k
u
k
k
k
u
u
u
u
u
u
u
u
k
u
k
u
u
k
u
k
k
u
u
u
u
u
u
u
u
k
u
u
u
u
k
k
k
k
u
u
k
k
u
u
k
u
k
k
u
k
k
k
k
u
k
k
k
u
k
u
u
u
u
k
u
u
k
k
k
u
u
u
u
u
k
k
u
k
u
k
u
k
k
k
u
u
u
u
u
u
u
k
k
u
u
u
u
u
u
u
u
k
u
u
k
k
k
u
u
u
k
u
u
k
u
k
k
k
k
u
k
u
u
u
k
k
u
k
u
u
k
k
u
u
k
u
u
u
u
u
u
u
k
u
u
k
k
k
k
u
k
u
u
u
k
k
u
k
u
k
u
k
k
k
u
u
u
k
k
u
u
u
k
u
k
k
u
u
u
u
u
k
u
k
u
k
u
k
k
k
k
k
u
u
u
k
k
k
k
u
u
k
k
k
u
k
k
k
k
k
k
k
k
k
u
k
u
u
k
k
k
k
u
k
u
k
k
u
k
u
u
u
k
k
k
u
u
k
u
k
u
u
u
k
u
k
k
k
k
k
k
k
u
u
k
k
u
k
u
u
k
k
u
u
u
u
u
k
k
k
k
k
u
u
k
u
k
k
u
u
k
k
k
k
u
k
u
k
k
k
k
u
u
k
k
k
k
u
u
k
k
k
k
k
k
k
u
u
u
k
u
k
k
k
u
k
u
k
k
u
k
u
u
k
u
u
k
u
u
k
k
k
k
k
u
u
u
u
u
k
k
k
k
k
u
u
u
u
k
k
u
k
k
k
k
k
k
u
u
k
u
u
u
k
u
k
k
k
u
k
u
k
k
u
u
k
k
u
u
u
u
u
k
u
u
k
u
u
u
k
u
k
u
u
u
u
u
u
k
u
u
k
u
k
u
u
u
u
u
k
u
k
u
u
k
k
u
u
k
k
k
u
k
k
k
k
u
k
u
k
k
k
k
u
k
k
k
u
k
k
k
k
u
u
u
k
k
k
u
k
u
k
u
u
u
k
k
u
u
u
u
k
k
u
u
k
u
k
k
u
u
k
k
u
u
u
k
k
k
u
k
u
k
k
k
k
u
u
k
k
u
k
k
u
k
k
k
k
u
k
k
u
k
u
k
u
u
k
u
u
u
k
u
u
u
k
k
u
k
u
u
k
k
k
u
k
u
u
k
u
u
k
u
k
u
u
k
k
u
k
k
k
u
u
u
k
u
k
u
k
k
k
k
k
u
u
u
u
u
k
k
u
k
k
k
u
u
u
k
u
u
k
k
k
u
k
u
k
u
u
u
u
k
k
u
u
k
u
u
u
k
k
k
u
k
u
u
u
k
k
k
u
u
u
u
k
u
k
u
k
u
u
k
k
u
k
k
k
k
k
u
k
k
u
u
k
u
u
u
u
k
u
k
u
u
u
u
k
k
u
u
u
k
k
k
u
k
k
k
u
k
k
k
u
k
u
k
u
u
u
u
k
u
k
k
u
k
u
k
u
u
u
u
u
u
k
k
k
u
k
u
u
u
k
k
k
u
u
u
k
u
u
u
u
u
k
u
u
u
u
u
u
k
u
u
u
u
u
k
u
u
k
u
u
k
k
u
u
u
u
u
k
k
u
u
k
u
k
u
u
u
k
k
k
u
k
k
k
u
u
u
k
u
u
k
u
k
u
k
u
u
u
u
u
k
u
k
u
u
k
k
u
k
k
u
k
k
k
u
k
u
k
u
u
u
u
u
u
u
k
k
u
u
u
k
u
u
u
u
k
u
u
k
k
k
u
k
u
u
u
k
u
k
k
u
u
k
k
k
k
k
k
k
u
k
k
k
k
k
u
k
u
u
u
k
k
u
u
k
u
k
k
u
k
u
u
k
k
k
k
u
k
u
u
k
k
k
u
u
u
u
k
k
u
u
u
u
k
k
u
k
u
u
u
k
u
k
k
u
k
k
u
k
k
u
u
u
k
k
k
u
u
k
u
k
u
k
u
u
k
k
k
k
u
u
k
k
k
u
u
k
k
k
u
k
u
u
k
k
u
k
u
u
u
u
u
u
k
k
k
u
k
k
k
u
k
u
u
u
u
k
k
u
u
u
k
u
u
k
k
u
u
k
u
k
k
u
u
u
u
u
k
u
k
u
u
u
k
k
k
k
k
k
u
k
k
k
u
u
u
k
u
k
u
u
k
u
k
u
k
u
k
k
u
k
u
u
k
k
u
k
u
k
u
u
k
k
u
k
k
k
u
k
k
u
k
u
u
u
k
k
k
u
k
k
k
k
u
u
k
u
k
k
k
k
u
k
u
k
k
k
k
u
k
k
u
k
u
u
k
k
k
u
u
u
u
k
u
k
k
u
k
u
k
u
k
u
u
k
u
u
u
k
u
u
k
u
k
k
k
k
k
u
k
k
k
k
k
k
k
u
k
k
u
u
u
u
k
u
u
k
u
u
u
u
k
k
u
k
k
u
u
u
u
k
u
u
k
k
k
k
k
u
k
u
k
u
k
k
u
u
u
k
u
u
u
u
k
k
k
k
k
k
k
k
k
u
u
k
k
k
u
k
u
u
k
u
k
u
u
k
k
k
u
u
k
u
k
u
u
u
k
u
u
k
u
u
u
k
u
k
u
k
k
u
u
u
k
u
k
k
k
k
u
u
u
u
u
k
u
k
k
u
u
u
k
u
k
k
k
u
u
k
u
u
u
k
k
k
k
k
u
u
u
u
k
k
k
k
k
k
u
u
u
k
u
k
u
k
u
k
u
u
k
k
u
u
k
u
u
u
u
k
k
u
u
k
u
u
u
u
k
u
k
u
u
k
k
u
u
u
k
k
k
k
u
k
u
u
u
k
k
u
k
u
u
k
u
k
u
k
k
k
u
u
k
k
u
u
u
k
u
u
k
u
k
u
k
k
k
u
k
k
u
u
k
k
u
u
k
u
k
u
u
k
k
k
k
u
u
k
k
k
u
k
u
k
u
k
u
u
k
u
u
k
k
u
k
u
k
u
u
u
k
u
u
u
u
k
u
u
k
u
k
k
k
k
k
u
k
k
k
u
k
k
k
k
k
u
u
u
k
u
k
k
k
k
k
k
k
k
u
k
k
k
k
k
u
k
k
u
k
k
u
u
k
k
k
k
u
u
u
k
k
u
u
k
u
k
u
k
u
k
u
k
k
k
k
k
u
u
u
k
u
k
k
u
k
u
u
u
u
k
u
u
k
u
k
u
k
k
u
u
k
k
u
k
u
k
k
k
u
u
k
k
k
u
k
u
u
k
k
k
k
k
u
k
k
u
k
k
u
u
k
u
k
u
k
k
u
k
k
u
u
k
u
u
u
u
u
k
k
u
k
k
u
u
k
u
k
k
k
k
u
k
u
k
u
u
u
u
u
u
u
k
k
u
u
u
u
k
k
k
k
u
k
k
u
k
k
u
u
k
u
k
u
u
u
u
k
k
u
k
k
k
k
u
k
k
u
u
u
u
u
u
u
u
k
u
k
u
k
k
u
k
u
k
k
u
k
k
u
u
u
k
k
u
k
u
k
u
u
k
u
u
u
u
k
k
u
u
u
k
k
u
k
k
k
u
k
k
u
k
u
k
k
k
u
u
u
u
u
k
k
k
u
u
k
k
k
u
u
u
u
u
k
u
k
k
u
k
k
u
k
k
u
u
u
k
k
k
u
k
u
u
u
u
u
k
u
k
u
u
k
k
k
k
u
u
k
k
k
k
u
u
u
u
u
k
u
u
u
u
u
k
k
k
k
u
u
u
k
k
u
k
u
u
u
k
u
k
k
u
u
k
u
u
u
u
k
k
k
k
k
k
u
k
k
u
k
k
k
u
u
u
k
u
k
k
u
k
k
u
k
u
u
u
k
u
k
k
k
u
u
k
u
k
k
u
k
u
k
k
k
k
k
k
u
u
u
k
u
k
k
k
u
k
k
k
u
u
k
u
k
k
u
u
k
u
u
u
k
u
k
k
u
u
u
u
k
k
k
u
k
k
u
k
k
u
k
u
k
k
k
k
k
u
k
u
k
u
k
k
u
u
k
u
u
u
k
u
k
u
k
u
k
k
k
u
u
u
k
k
k
k
u
u
k
k
k
k
k
k
u
k
u
u
k
k
k
u
k
u
u
k
k
k
k
k
u
u
k
k
u
u
u
u
u
k
k
k
k
u
k
u
u
u
u
k
k
u
k
k
k
k
k
k
k
k
k
u
k
u
k
k
u
u
u
k
u
u
u
k
u
u
k
u
k
u
k
u
k
k
u
k
u
k
k
u
k
u
k
k
k
k
k
u
u
k
u
u
k
u
u
u
u
k
u
k
k
k
u
k
u
u
k
u
k
k
k
k
k
k
u
u
k
u
k
k
u
u
u
u
u
u
k
u
u
u
k
k
u
k
k
u
k
k
k
u
u
k
u
k
k
k
k
k
u
k
k
k
k
u
u
u
u
k
k
u
k
k
u
u
k
k
k
k
k
k
k
u
u
u
k
k
u
k
u
u
u
k
k
k
u
k
k
k
k
k
u
k
k
u
u
k
u
u
u
u
k
u
k
k
k
u
u
k
u
u
k
u
u
k
k
u
u
u
k
u
k
u
u
u
k
k
k
k
k
k
k
u
k
k
u
k
u
k
u
u
k
u
u
k
u
u
u
k
u
k
u
u
k
u
u
u
k
u
k
k
u
u
u
k
k
u
k
k
k
u
u
k
k
u
k
k
k
k
u
u
k
k
u
u
k
k
u
u
k
k
k
k
k
k
k
k
u
k
u
k
k
k
k
k
u
u
k
u
k
u
u
u
u
k
u
u
u
k
k
u
k
k
u
u
u
k
u
u
u
u
u
u
u
k
u
u
k
u
k
u
u
k
u
k
k
k
u
k
k
u
u
k
k
u
u
k
u
k
u
k
u
k
k
u
u
u
k
u
k
k
k
k
u
u
u
k
u
k
u
u
k
u
k
k
u
k
k
u
u
k
k
u
u
u
u
k
k
k
u
k
k
k
k
k
u
k
k
u
k
u
k
k
u
k
k
k
k
u
k
u
k
k
k
u
u
k
u
k
k
k
u
u
k
u
u
k
k
k
k
u
k
k
u
u
k
u
u
k
u
u
u
k
k
u
u
k
u
k
u
k
k
u
k
u
u
u
k
u
u
k
k
k
k
k
k
u
k
u
u
u
k
k
u
k
u
k
u
k
k
u
k
k
u
k
u
k
u
u
k
u
u
u
u
k
u
u
k
u
k
k
k
u
k
k
u
k
k
k
u
k
k
k
u
k
u
k
k
u
u
k
u
k
k
u
u
k
k
k
u
u
k
u
k
k
u
u
u
u
u
u
k
k
k
u
u
k
u
u
k
k
k
k
u
u
k
k
u
k
k
u
u
u
k
u
u
u
u
k
k
u
k
k
u
k
u
u
u
k
k
u
u
u
k
k
u
u
u
k
k
k
k
k
k
u
u
u
u
u
u
k
u
k
u
k
u
u
k
u
u
k
k
u
u
k
k
u
u
u
k
u
k
k
k
k
k
k
u
k
u
k
k
u
k
k
k
u
k
k
k
u
k
k
u
k
u
u
u
u
u
u
u
k
u
u
u
u
k
u
k
k
k
k
u
k
k
u
k
u
u
u
u
u
k
k
u
k
u
k
k
k
k
k
u
u
u
k
u
k
k
k
u
u
k
u
u
u
u
u
u
u
u
k
u
u
u
u
k
k
u
k
u
k
k
k
u
k
k
k
u
k
u
k
u
k
k
u
k
u
u
u
u
k
u
k
u
u
u
k
u
k
k
k
u
u
u
u
u
k
u
u
u
k
u
u
k
u
k
k
k
k
k
k
k
u
k
k
k
u
k
k
k
u
u
u
u
u
u
k
k
u
u
u
u
u
k
u
u
k
k
k
k
k
k
u
u
u
u
k
k
k
k
k
u
k
u
u
u
u
u
k
u
u
k
u
u
k
u
k
u
k
k
k
u
u
k
k
k
k
k
k
u
k
k
k
k
k
u
k
u
k
k
k
k
k
k
u
k
k
u
k
u
u
k
u
u
u
u
u
u
u
k
k
u
k
k
u
k
u
u
k
k
k
k
k
k
k
u
k
u
u
k
k
u
k
k
u
k
k
u
k
k
k
k
k
k
k
k
u
u
k
k
k
u
k
u
k
k
u
k
u
k
u
k
u
u
u
k
k
u
u
k
u
k
k
k
u
u
k
u
u
u
k
u
u
k
k
k
u
u
k
k
u
u
u
u
k
k
k
k
u
u
u
u
k
u
u
u
k
u
u
u
k
u
k
k
u
u
k
k
k
k
k
u
u
u
k
u
u
u
k
u
u
k
k
k
u
k
k
k
u
k
u
u
u
u
u
k
u
u
k
u
u
u
k
k
k
k
u
u
u
k
k
u
k
u
k
u
k
u
k
k
u
k
u
u
u
k
u
k
k
u
k
k
k
u
u
k
k
k
u
k
u
u
u
u
k
k
k
u
k
u
k
k
k
u
k
u
k
u
u
k
k
k
k
k
k
k
u
u
k
u
k
u
u
k
k
u
u
u
k
k
u
k
u
u
u
u
k
k
k
u
u
u
u
k
u
u
u
u
u
k
u
k
u
k
k
u
k
k
k
k
k
k
u
u
u
k
u
k
k
u
k
k
k
k
u
k
k
k
u
u
u
k
u
k
k
u
k
k
k
u
u
u
k
k
u
u
u
u
k
u
u
u
k
u
k
k
u
k
k
u
k
k
u
k
k
k
u
u
k
u
u
k
k
k
u
k
k
u
k
u
u
k
k
u
k
u
u
k
u
u
u
u
k
k
u
k
u
u
u
k
k
u
k
k
k
u
k
k
k
k
u
u
u
u
k
k
u
u
u
k
k
k
k
u
k
u
u
u
k
u
u
u
k
k
u
k
k
k
u
k
u
u
u
k
k
u
k
k
k
k
k
k
k
u
k
u
u
k
u
u
u
u
k
k
u
u
k
u
u
u
u
k
k
k
k
u
u
u
k
k
k
u
k
u
k
k
u
u
k
u
u
k
u
u
u
k
k
k
k
k
k
k
k
k
u
u
u
u
k
u
k
k
k
k
k
u
u
k
k
u
k
u
k
k
u
k
k
u
u
u
k
u
k
k
k
k
k
u
k
k
k
k
u
k
k
k
k
k
k
u
u
k
k
k
k
k
k
u
k
u
u
k
u
u
u
k
k
u
k
k
k
k
k
u
u
u
u
u
u
u
u
u
k
k
k
k
u
k
k
u
k
u
u
u
u
u
k
u
k
u
u
u
u
k
u
u
k
u
u
u
u
k
k
u
k
k
k
k
k
u
u
u
u
u
k
k
u
k
u
u
u
k
u
u
u
k
k
u
k
u
k
u
u
u
k
u
u
k
u
k
u
u
u
u
u
u
u
u
u
u
u
k
u
k
u
u
k
k
u
u
u
k
u
u
u
k
u
k
u
k
u
k
u
u
u
u
u
k
u
k
u
k
u
u
u
u
u
u
u
u
u
k
u
k
u
u
k
u
u
u
u
u
k
u
k
k
k
u
u
u
u
u
k
u
u
k
u
u
u
k
k
k
k
k
u
k
u
k
u
k
k
u
u
u
u
u
k
u
u
k
k
k
k
u
u
u
u
u
u
k
u
u
k
k
k
u
u
u
k
u
k
u
u
k
u
k
k
u
k
k
u
k
u
u
k
u
u
u
k
k
u
k
k
u
u
u
u
k
k
u
k
u
u
k
k
k
u
u
u
k
k
k
k
k
u
k
u
k
u
k
u
k
u
u
u
k
k
k
u
u
k
u
k
k
u
k
k
u
u
u
u
k
u
k
u
k
u
u
k
u
k
u
k
u
k
u
k
u
k
u
k
u
k
u
k
u
u
k
u
k
k
u
k
k
k
k
k
u
u
u
k
k
u
k
k
u
u
u
u
k
k
k
u
u
k
k
k
k
k
u
k
u
k
k
k
u
u
k
k
u
k
u
k
u
k
k
u
k
u
u
k
u
k
k
k
k
k
u
k
u
u
u
u
k
u
u
k
u
u
u
u
k
u
u
u
u
u
u
u
u
u
u
k
u
k
k
u
k
k
u
u
u
u
u
u
u
u
u
k
u
k
k
k
k
k
u
k
u
k
u
k
k
k
k
k
u
u
u
k
u
u
u
u
u
k
k
u
k
u
u
u
u
k
k
k
k
k
u
u
u
k
k
u
u
k
k
u
k
k
u
u
u
u
u
k
u
k
k
u
u
u
k
k
k
u
k
k
k
k
u
u
u
u
u
k
k
k
u
u
u
u
u
k
k
k
u
k
u
k
k
u
k
u
k
k
k
u
k
u
u
k
u
u
u
k
k
k
u
k
k
k
u
k
u
k
k
k
u
u
u
u
u
u
k
k
k
u
u
u
k
u
u
k
k
u
u
k
u
u
u
k
u
u
u
k
u
u
k
u
u
k
k
k
k
u
u
k
k
u
u
u
u
k
k
k
k
u
k
u
k
u
k
u
u
u
k
u
k
k
k
u
k
u
u
u
k
u
u
k
u
u
k
u
u
u
u
k
u
u
k
k
k
k
u
k
u
u
k
k
u
u
u
u
k
u
k
u
u
u
k
u
k
u
u
k
u
u
k
k
u
u
u
u
u
k
u
k
u
k
u
k
u
u
u
u
u
u
k
k
k
u
k
u
k
u
k
k
u
k
k
k
k
k
u
k
u
u
u
u
u
k
u
u
u
k
k
u
u
k
u
u
u
k
k
k
k
u
k
k
k
u
u
k
k
k
k
k
k
k
u
k
k
k
k
k
u
k
k
u
k
u
k
u
k
k
k
k
k
u
k
k
u
k
u
k
k
k
u
u
u
k
u
k
k
u
k
u
k
u
u
u
u
k
k
u
k
k
u
k
u
k
u
k
u
k
k
u
k
u
k
u
k
k
u
k
u
k
k
u
u
k
u
u
k
u
k
k
k
k
u
u
k
u
k
k
u
u
k
k
u
u
u
u
k
u
k
k
k
u
u
k
u
k
k
k
u
k
k
k
u
k
k
k
u
u
k
u
k
u
k
u
k
u
u
k
u
k
u
k
u
k
k
k
k
u
k
k
k
u
u
k
u
u
u
k
k
u
k
u
u
u
k
k
u
u
u
k
k
u
u
u
u
u
k
u
u
k
k
k
u
k
u
u
u
u
k
k
u
u
k
k
k
u
u
u
k
k
u
u
k
u
u
k
u
k
k
k
k
u
k
u
k
k
k
u
k
u
u
u
u
k
u
u
u
u
k
u
u
k
u
u
k
k
k
u
k
u
k
k
u
k
k
k
k
k
k
k
u
k
u
u
k
u
k
k
u
k
u
k
u
u
u
k
u
k
k
k
k
k
u
u
u
u
u
u
u
u
u
k
k
u
k
u
k
k
k
k
k
u
u
k
k
k
u
u
k
k
u
u
k
k
u
k
u
u
k
k
u
k
k
k
k
k
u
u
u
k
k
u
k
k
k
u
k
u
k
k
u
k
u
u
u
k
k
k
u
k
u
u
u
k
k
u
k
u
k
u
k
u
k
k
k
k
u
k
u
k
k
u
k
k
k
u
k
u
u
u
k
k
u
k
k
k
k
k
u
k
k
u
k
u
u
u
u
u
u
k
u
k
u
k
u
k
k
u
u
k
k
k
k
k
k
k
k
k
u
u
k
k
u
u
u
u
k
u
u
u
k
u
u
k
k
k
k
k
k
u
u
u
k
u
u
k
u
u
u
k
k
u
u
u
k
u
u
k
k
k
k
u
u
u
k
k
k
u
u
u
u
k
u
u
k
k
k
k
k
k
k
u
u
k
u
u
u
u
k
u
u
k
k
u
k
u
k
k
u
u
u
u
u
k
u
u
k
k
k
u
k
k
u
u
u
u
u
u
u
u
k
u
u
u
u
k
k
u
k
u
u
u
k
k
k
u
k
k
u
k
k
u
k
u
u
u
k
u
k
k
u
u
u
u
k
k
u
k
u
k
k
k
u
k
k
u
k
k
k
u
u
u
k
k
u
u
k
u
k
u
u
k
k
u
k
k
u
u
u
u
u
k
k
k
u
k
u
u
k
u
u
k
k
u
u
u
u
k
u
k
u
k
u
k
k
k
u
k
u
k
k
k
k
k
u
k
k
u
k
k
u
u
u
u
k
u
u
k
u
k
u
k
u
u
u
k
k
k
u
u
u
k
u
k
u
u
k
u
u
k
k
u
u
k
k
u
k
k
u
k
u
k
k
u
k
k
u
u
k
k
u
u
k
k
k
k
k
k
k
k
k
k
k
k
u
u
u
u
k
k
u
u
u
k
k
u
k
k
u
k
u
u
u
u
u
u
k
u
k
k
u
u
u
u
k
k
k
k
k
u
u
u
k
u
u
u
u
k
k
k
k
u
u
k
u
u
u
k
k
k
u
u
u
k
u
u
k
u
u
u
u
k
k
k
u
u
k
k
u
u
k
u
k
k
k
u
u
k
u
u
k
k
k
u
k
u
k
u
u
k
u
u
u
u
k
k
u
k
u
k
k
u
u
u
u
u
u
u
k
k
k
u
u
k
u
u
k
k
k
k
u
k
k
u
u
u
u
u
k
u
u
k
k
k
k
u
k
u
u
k
k
u
u
u
k
k
u
u
k
k
u
u
u
k
k
k
u
k
u
k
k
u
u
u
u
k
u
k
u
k
k
u
k
k
k
u
u
u
u
u
k
u
u
u
u
u
u
k
u
k
u
u
u
u
k
k
k
u
k
k
u
u
k
u
k
k
u
u
k
k
u
u
k
k
k
k
u
u
u
k
u
k
k
k
u
u
k
u
k
k
k
u
k
u
k
u
k
u
u
k
u
u
u
u
k
u
k
k
u
k
u
u
u
k
u
u
u
k
u
k
u
u
k
k
k
k
u
k
k
u
u
k
u
u
u
u
u
u
u
k
u
u
k
k
u
k
k
u
u
k
u
u
k
u
k
u
u
k
k
u
u
k
u
u
u
u
k
k
k
k
u
k
u
k
k
u
k
k
u
u
k
k
u
k
k
u
u
k
k
k
u
k
k
u
k
u
u
u
u
k
u
u
u
u
u
k
u
k
k
k
u
k
u
k
k
u
k
u
u
k
k
k
k
k
u
k
k
u
u
u
k
k
u
k
k
k
u
u
u
k
u
k
k
k
k
k
k
k
k
u
u
u
u
k
k
k
k
u
u
k
k
u
u
k
u
u
k
u
u
k
u
k
u
u
u
k
k
k
u
k
k
k
u
k
u
k
u
k
k
u
k
u
u
k
u
u
k
u
k
k
u
k
k
k
k
k
k
k
k
k
u
u
u
k
k
k
u
u
u
u
k
k
u
k
k
u
k
u
u
u
u
u
u
k
k
u
k
k
u
k
u
u
u
k
u
u
u
u
k
k
k
k
u
u
k
u
u
u
k
u
k
k
k
k
k
u
u
u
k
k
u
u
k
k
u
u
k
u
k
k
u
k
k
u
k
u
k
k
u
u
k
u
k
u
u
k
u
u
u
u
u
u
u
k
u
k
k
u
k
k
k
u
k
k
k
u
u
k
u
k
u
u
k
k
u
u
k
u
k
u
u
u
u
u
k
k
u
k
u
k
k
u
k
u
u
k
k
k
u
u
u
u
u
u
k
k
k
u
u
u
u
u
u
u
u
k
k
u
u
u
u
u
u
u
u
k
k
u
k
k
u
u
k
k
k
k
u
u
u
u
u
u
k
u
u
u
k
u
k
u
k
k
k
k
u
k
u
u
u
k
k
k
u
u
k
k
u
k
u
k
k
k
k
k
k
u
k
u
k
k
k
u
k
k
k
k
k
k
u
u
k
u
k
u
k
u
k
k
k
k
k
u
u
k
u
k
u
u
u
u
k
u
u
k
u
k
u
k
k
k
k
k
k
u
k
k
k
u
k
u
u
k
k
u
u
k
u
u
u
u
u
u
u
k
u
u
u
k
k
k
k
k
k
u
k
u
k
k
k
k
u
u
u
k
u
k
u
u
k
u
k
u
u
u
u
k
u
k
k
k
k
k
k
u
u
u
k
u
k
u
u
k
k
k
k
k
k
k
k
k
k
u
u
k
u
u
u
k
u
u
u
u
u
k
k
k
k
k
u
k
u
k
k
u
k
k
u
u
u
k
k
k
k
k
k
u
u
u
u
k
k
u
k
u
u
u
k
u
u
u
u
u
u
k
k
k
u
u
k
u
u
u
k
u
k
u
u
k
u
k
u
u
k
k
u
u
k
k
u
u
u
u
k
u
k
u
u
u
k
k
u
k
u
k
u
u
k
k
u
k
k
u
u
k
k
k
k
k
k
u
u
k
k
u
k
u
k
u
u
k
k
k
u
u
k
k
k
u
u
u
k
k
k
u
k
k
k
k
k
u
k
u
k
k
u
k
u
k
u
k
k
k
k
u
k
k
u
k
u
u
k
k
u
k
k
u
u
u
k
k
k
u
u
u
u
u
k
u
k
u
k
u
u
u
u
k
k
k
u
u
u
k
k
u
k
u
k
u
k
k
k
u
u
u
u
u
k
u
k
u
u
k
u
k
k
u
k
u
k
k
k
u
u
k
u
k
k
u
u
u
u
u
k
k
u
k
u
u
k
u
u
u
u
u
u
u
k
k
u
u
k
k
k
k
k
u
u
k
u
k
u
u
u
u
k
k
k
u
k
u
k
k
k
u
k
k
k
u
u
k
k
u
u
u
k
u
k
u
u
u
k
k
k
k
u
u
u
u
k
u
k
u
k
u
k
k
k
u
u
u
k
k
k
k
k
k
u
k
u
u
u
u
k
k
u
u
k
k
k
k
u
k
k
u
u
k
k
u
u
k
k
u
k
u
u
k
k
u
k
u
u
k
u
k
u
k
u
k
k
k
k
u
u
k
u
k
k
k
u
k
k
u
u
u
u
k
k
u
u
k
u
u
k
k
u
u
u
k
u
u
u
k
k
u
u
u
u
k
k
u
u
k
u
u
u
u
u
u
k
k
u
k
k
u
k
k
k
k
k
k
k
k
u
u
u
k
k
k
k
k
u
k
k
u
u
u
k
k
k
u
k
k
u
k
u
k
k
u
k
k
k
u
u
k
u
k
k
k
k
k
k
u
k
k
u
k
u
u
k
k
u
u
k
u
k
k
k
k
k
u
u
k
k
u
k
k
u
k
k
u
k
k
u
k
u
u
k
k
u
k
k
u
u
u
k
k
k
k
u
u
u
u
u
u
k
k
k
k
u
u
u
k
k
u
u
k
u
u
k
k
u
u
u
u
k
k
u
u
k
k
u
u
k
u
u
k
u
u
k
u
k
u
k
k
u
k
k
u
u
k
u
k
u
k
u
u
u
u
k
u
k
u
u
u
k
k
u
u
k
u
k
k
k
u
k
u
k
k
k
u
u
u
u
k
u
k
k
k
k
u
u
k
u
k
u
u
u
u
k
u
k
k
u
u
u
u
u
k
u
u
k
u
k
k
u
k
u
k
u
u
u
u
k
k
k
k
u
u
k
u
u
u
u
u
u
k
u
k
u
k
u
u
u
k
u