17:00
2
teacher
00:12
1
00:19
2
08:00
1
15:00
3
13:00
0
08:00
2
08:00
0
10:00
0
05:00
2
12:00
1
14:00
0
05:00
2
25:00
0
05:00
0
05:00
3
13:00
0
11:00
2
08:00
2
06:00
1