10:00
1
students
10:00
0
33:00
0
10:00
0
06:00
0
10:00
0
11:00
0
01:05
0
07:00
0
05:00
0
12:00
6
06:00
2
22:00
5
08:00
2
05:00
5
10:00
2
23:00
1
06:00
2
07:00
2
05:00
2
