1, 10, 11, 13, 14, 15, 16, 17, 18, 19, 2, 20, 21, 23, 24, 25, 26, 27, 28, 29, 3, 30, 32, 33, 34, 35, 36, 37, 38, 39, 4, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 5, 50, 52, 56, 57, 58, 6, 60, 61, 62, 63, 64, 66, 68, 7, 70, 72, 8, 9