1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 2, 20, 21, 22, 24, 26, 27, 29, 3, 30, 31, 32, 33, 34, 36, 37, 38, 39, 4, 40, 42, 45, 5, 6, 7, 9