1, 2, 3, 4, 8, 9, 10, 11
1, 2, 3, 4, 5, 12, 13, 14
0, 1, 2, 3, 4, 5, 6, 7
0, 1, 2, 3, 6, 7, 13, 14
5, 6, 7, 8, 9, 10, 11, 12
0, 8, 9, 10, 11, 12, 13, 14
