1, 2, 3, 4
1, 2, 3, 4, 1, 10, 12, 14, 16, 17, 18, 2, 22, 24, 25, 26, 29, 3, 30, 34, 35, 37, 38, 4, 40, 42, 43, 44, 46, 48, 50, 54, 58, 6, 7, 8, 9