6, 12
7, 12
8, 11
9, 11
10, 11
9, 10
9, 9
8, 10
7, 9
6, 10
5, 10
4, 10
3, 11
2, 10
1, 11
0, 10
1, 9
2, 9
1, 8
0, 7
0, 6
1, 5
0, 4
0, 3
1, 2
2, 1
3, 0
4, 0
5, 1
6, 0
7, 0
8, 1
9, 1
10, 2
11, 3
10, 4
9, 5
8, 6
8, 7
7, 7
6, 6