11, 1
1, 1
1, 11
11, 11
11, 3
3, 3
3, 9
9, 9
9, 5
5, 5
5, 7
6, 7
6, 6
8, 6
8, 8
4, 8
4, 4
10, 4
10, 10
2, 10
2, 2
11, 2