9
student
22
15
17
19
18
33
9
7
14
15
16
24
21
25
10
5
15
5
7
2
10
14
3
28
18
29
05:00
23
07:00
21
01:00
48
13:00
24
12:00
11
00:53
8
05:00
12
02:00
39
04:00
17
05:00
11
02:00
16
07:00
6
05:00
18