1, 2, 3, 4, 5, 6
1, 2, 3, 4, 5, 6, 1, 2, 3, 4, 5, 6, 7
1, 2, 3, 4, 5, 6, 1, 2, 3, 4, 5, 6, 7, 1, 2, 3, 4, 5