3, 5, 12
1, 2, 4
5, 6, 7, 8, 9, 10
11
2
7, 8, 9, 10
11, 12, 13, 14, 15
7, 8, 9
10, 11
1, 2
4
7, 9
8
10, 11
1, 2, 4
5, 6, 7, 8, 9, 10
11
12