1, 11, 12, 13, 14, 15, 16, 17, 18, 19, 2, 20, 21, 22, 23, 27, 28, 29, 3, 31, 32, 33, 34, 35, 36, 37, 38, 4, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 5, 50, 51, 52, 53, 55, 57, 6, 7