0
3 4
0 1
2 3
1 2 3
0 2 3
0 1 3
0 1 2
Orig:
6
1-7,17-23:
4 6
6 11
4 9
9 11
7-16:
3 9
7 9
1 3
17-23:
2 4
7,8,11,14:
1 2 3
0 2 3
0 1 3
0 1 2
1-7:
1 2 3 4 5
0 2 3 4 6
0 1 3 5 6