1, 10, 11, 13, 14, 15, 16, 17, 18, 2, 20, 207, 22, 23, 24, 25, 27, 3, 30, 32, 34, 38, 4, 40, 44, 46, 48, 5, 52, 54, 56, 6, 60, 7, 8, 9