0
student
0
0
4K
0
0
7K
28K
0
0
0
0
16K
23K
0
12K
0
0
0
0
6K
23K
8K
23K
5K
0
0
5K
3K
0
0
0
23K
0
24K
0
17K
0
0
0
0
0
0
12K
16K
0
0
0
0
0
