18:00:31
12
teacher
01:01 4
40:12 0
16:06 0
22:59
4
22:59
1
09:07
8
07:46 0
14:31 0
08:02:02 0
00:01 0
00:04 4
6
2
12:55 0
12:55 2
12:55 6
07:16 4
00:10 5
11:51 0
11:57 0
15:30 1
01:08 0
00:05 0
00:02 1
00:01 3
01:01 1
08:05
2
14:00
3
12:11
2
02:07:50
2
