1-2
3-2
5-2
6-2
10-2
11
13
16-2
17-2
18
20-2
22-2
23-2
25-2
25
27
2-2
3
5
7
10
13-2
14
15
17
19-2
20
21
24-2
24
26
28-2
2
4-2
6
7-2
11-2
14-2
15-2
16
18-2
19
21-2
22
23
26-2
27-2
29-2