StudentID,Before,After
1,43,38
2,42,33
3,30,25
4,43,35
5,34,27
6,30,24
7,37,36
8,39,37
9,19,17
10,34,34
11,30,24
12,33,25
13,36,29
14,36,27
15,29,26
16,38,31
17,30,20
18,40,28
19,32,25
20,34,34
21,23,19
22,28,27
23,41,36
24,35,27
25,27,21
26,31,22
27,34,30
28,37,34
29,40,34
30,28,18
31,28,23
32,39,30
33,28,28
34,30,20
35,31,21
36,31,31
37,20,15
38,38,30
39,27,21
40,35,30