1, 2, 3, 5, 4, 6, 7, 9, 10, 12, 8, 13, 11, 16, 17, 19, 14, 20, 15, 23, 21, 24, 18, 28, 22, 27, 25, 31, 26, 36, 29, 32, 33, 35, 30, 40, 34, 39, 37, 43, 38, 44, 41, 47, 48, 50, 42, 54, 45, 51, 49, 55, 46, 58, 52, 59, 53, 62, 56, 63, 57, 66, 64, 67, 60, 71, 61
