1, 2, 3, 4, 6, 8, 5, 9, 12, 7, 13, 11, 15, 16, 10, 17, 24, 14, 18, 26, 21, 32, 19, 33, 22, 34, 20, 36, 25, 35, 27, 37, 28, 39, 48, 23, 38, 50, 29, 49, 31, 52, 30, 51, 42, 55, 41, 56, 40, 58, 47, 60, 64, 43, 65, 44, 66, 45, 53, 67, 54, 68, 57, 70, 46, 71, 61
