1, 3, 1, 3, 2, 4, 5, 4, 6, 7, 4, 6, 7, 8, 10, 11, 9, 10, 11, 10, 12, 13, 11, 12, 13, 14, 14, 15, 15, 16, 17, 16, 17, 19, 18, 22, 23, 22, 23, 24, 26, 25, 20, 21, 25, 26, 28, 29, 26, 27, 25, 26, 32, 31, 30, 31, 31, 32, 36, 37, 33, 34, 31, 32, 36, 35, 37, 38, 35, 34, 36, 37, 41, 42, 39, 40, 42, 41, 45, 46, 35, 34, 48, 49, 49, 50, 44, 45, 50, 49, 49, 50, 48, 49, 48, 49, 51, 52, 54, 55, 52, 51, 55, 56, 58, 59, 57, 58, 63, 64, 64, 65, 65, 64, 59, 60, 62, 63, 69, 70, 63, 64, 62, 63, 68, 69
