53:00
0
Teacher
06:00
3
08:00
2
10:00
2
02:00
2
16:00
2
02:00
0
06:00
1
06:00
0
05:00
2
05:00
3
05:00
2
05:00
2
05:00
2
05:00
1
05:00
2
05:00
2
05:00
0
05:00
2
05:00
2