1, 2, 3, 4, 5, 6, 8
1, 2, 3, 4, 5, 6, 8, 1, 2, 3, 5
1, 2, 3, 4, 5, 6, 8, 1, 2, 3, 5, 1, 11, 13, 15, 19, 2, 3, 5, 9