1-3
2-1
3-1
4-2
5-1
6-4	
7-1
8-3
9-2
10-1
11-4
12-1
13-2
14-4
15-4
16-1
17-4
18-4
19-1
20-4	
21-4
22-1
23-4
24-2
25-4