19:42
teacher student
19:20
09:06
07:30
21:45
14:49
06:07
21:01
07:25
14:12
19:41
12:04
16:09
11:15
04:37
27:56
27:23
13:44
01:40
07:37
07:20
10:00
13:37
18:05
07:35
07:35
11:15