11:27
31
teacher
11:27 
12:06
4
13:08
4
13:08
0
13:39
22
11:43
1
47:19
1
15:39
1
14:14
6
19:17
3
11:35
3
08:05
5
17:14
0
17:14
2
16:18
2
13:01
5
13:01
4
08:44
8
14:15
3
03:22
3
