1, 2, 3, 4, 6, 5, 7, 9, 8, 10, 11, 12, 15, 16, 13, 14, 17, 18, 21, 24, 19, 22, 25, 20, 23, 26, 27, 33, 30, 29, 36, 32, 28, 35, 34, 31, 38, 37, 39, 40, 51, 42, 45, 48, 43, 49, 54, 44, 46, 50, 41, 56, 53, 47, 58, 52, 60, 55, 66, 57, 61, 69, 63, 78, 72, 59, 75
