1, 21, 2, 11, 3, 4, 111, 1122, 5, 6, 7, 8, 9, 22, 23, 22222, 222222, 2222222, 22222222, 222222222, 24, 25, 26, 222, 27, 28, 29, 32, 33, 34, 35, 36, 37, 38, 39, 42, 43, 44, 45, 46, 47, 48, 49, 52, 53, 54, 55, 56, 57, 58, 59, 62, 63, 64, 65, 66, 67, 68, 69, 72, 2222, 73