1, 2, 3, 6, 8
1, 2, 3, 6, 8, 2, 3, 4, 5
1, 2, 3, 6, 8, 2, 3, 4, 5, 1, 10, 11, 13, 14, 16, 17, 2, 20, 22, 24, 27, 29, 3, 4, 5, 6, 7, 8, 9