01:03 0
hard
01:03 
06:06 0
12:34 0
04:15 0
00:29 1
00:49 0
02:39 1
02:29 0
04:48 0
02:05 0
06:15 1
01:59 0
06:08 0
12:08 2
10:01 0
12:07 0
12:12 0
20:19 0
10:01 1
20:18 0