10:00
68
student
10:00
0
11:00
9
15:00
1
14:00
3
20:00
121
13:00
4
10:00
17
06:00
2
12:00
2
11:00
2
05:00
113
02:00
0
22:00
12
11:00
9
13:00
13
05:00
1
30:00
8
01:21
0
59:00
8
05:00
2
02:00
4
25:00
8
11:00
28
13:00
18
10:00
4
16:00
8
11:00
10
21:00
16
11:00
12
00:50
10
24:00
6
36:00
13
00:50
0
08:00
17
01:18
3
22:00
56
00:49
14
00:54
10
22:00
28
26:00
33
00:50
3
42:00
59
27:00
29
00:50
13
00:34
44
00:30
44
10:00
5
00:49
16
22:00
29