1-2
2-1
3-2
4-1
5-2
15-1
16-24
17-14
18-123
19-1234
20-123
21-123
22-13
23-1234
24-1234
25-1234
29-1
30-1
33-1
35-1
37-1
39-1
1-2
2-2
3-2
4-2
5-2
6-123
7-34
8-1234
9-12
10-34
11-1
12-2
13-2
14-2
15-1
1-2
2-1
3-2
4-1
5-2
6-234
7-123
8-34
9-12
10-123
11-1
12-1
13-2
14-2
15-1
1-3
2-2
3-2
4-1
5-4
6-1234
7-123
8-12345
9-345
10-134
11-1
12-1
13-1
14-2
15-2
1-1
2-3
3-2
4-4
5-12345
6-12345
7
8
9-1234
10-1234
11-2
12-2
13-1
14-1
15-2