1, 2, 3, 4, 5, 6, 7

1, 2, 3, 4, 5, 6, 7, 1, 10, 11, 13, 15, 17, 19, 2, 21, 3, 4, 5, 6, 7, 8, 9

1, 2, 3, 4, 5, 6, 7, 1, 10, 11, 13, 15, 17, 19, 2, 21, 3, 4, 5, 6, 7, 8, 9, 1, 10, 11, 12, 13, 2, 3, 4, 5, 6, 7, 8, 9

1, 2, 3, 4, 5, 6, 7, 1, 10, 11, 13, 15, 17, 19, 2, 21, 3, 4, 5, 6, 7, 8, 9, 1, 10, 11, 12, 13, 2, 3, 4, 5, 6, 7, 8, 9, 1, 10, 12, 14, 16, 2, 3, 4, 5, 6, 7, 8

1, 2, 3, 4, 5, 6, 7, 1, 10, 11, 13, 15, 17, 19, 2, 21, 3, 4, 5, 6, 7, 8, 9, 1, 10, 11, 12, 13, 2, 3, 4, 5, 6, 7, 8, 9, 1, 10, 12, 14, 16, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5, 6, 7, 9

1, 2, 3, 4, 5, 6, 7, 1, 10, 11, 13, 15, 17, 19, 2, 21, 3, 4, 5, 6, 7, 8, 9, 1, 10, 11, 12, 13, 2, 3, 4, 5, 6, 7, 8, 9, 1, 10, 12, 14, 16, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5, 6, 7, 9, 1, 2, 3, 4, 5, 7

1, 2, 3, 4, 5, 6, 7, 1, 10, 11, 13, 15, 17, 19, 2, 21, 3, 4, 5, 6, 7, 8, 9, 1, 10, 11, 12, 13, 2, 3, 4, 5, 6, 7, 8, 9, 1, 10, 12, 14, 16, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5, 6, 7, 9, 1, 2, 3, 4, 5, 7, 1, 10, 11, 12, 13, 14, 15, 16, 17, 19, 2, 21, 3, 4, 5, 6, 7, 8, 9