1, 10, 4, 8
1, 10, 4, 8, 1, 14, 16, 18, 2, 3, 5, 6, 8, 9
1, 10, 4, 8, 1, 14, 16, 18, 2, 3, 5, 6, 8, 9, 1, 10, 11, 13, 14, 15, 16, 17, 19, 21, 3, 5, 6, 7, 8