1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 21, 22, 23, 24, 25, 27, 28, 33, 34, 35, 37, 38, 39, 41, 43, 44, 45, 46, 47, 49, 51, 55, 6, 7, 8, 9