1, 10, 12, 14, 15, 16, 18, 19, 2, 20, 24, 26, 3, 31, 34, 35, 36, 37, 39, 41, 42, 43, 44, 45, 46, 47, 48, 49, 5, 50, 53, 56, 58, 59, 6, 62, 65, 66, 68, 70, 8