00:23
1
student
00:31
1
23:00
12
10:00
1
02:00
0
05:00
0
00:40
1
00:37
1
07:00
1
00:38
0
10:00
0
00:32
6
00:36
3
13:00
307
15:00
8
10:00
3
08:00
10
10:00
8
13:00
155
11:00
6
01:23
0
24:00
6
11:00
10
12:00
4
15:00
23
18:00
4
31:00
13
17:00
9
11:00
15
11:00
65
00:50
7
11:00
17
08:00
16
17:00
9
12:00
29
12:00
7
11:00
9
13:00
14
06:00
18
35:00
33
09:00
19
22:00
6
11:00
29
06:00 11
21:00
14
12:00 22
00:13
58
40:00
39
09:00
360
05:00
188
35:00
80
25:00
2K
10:00
29
12:00
17
16:00
135
11:00
80
12:00
143
08:00
586
06:00
174