Ren Baoshuo 53d51ed170 B - Special Permutation ... https://codeforces.com/contest/1612/submission/136448114		2021-11-22 18:30:42 +08:00
..
A	A - Distance	2021-11-22 17:59:22 +08:00
B	B - Special Permutation	2021-11-22 18:30:42 +08:00