08:00
0
teacher
06:00
0
13:00
1
08:00
0
06:00
1
05:00
2
45:00
2
12:00
6
08:00
3
02:00
0
07:00
2
05:00
0
24:00
1
22:00
2
06:00
0
12:00
3
05:00
1
00:16
0
06:00
1
08:00
0