2
2, 2, 7
2, 2, 7, 1, 11, 12, 15, 18, 2, 3, 5, 7, 9
2, 2, 7, 1, 11, 12, 15, 18, 2, 3, 5, 7, 9, 1, 11, 13, 17, 2, 20, 23, 3, 5, 7, 8, 9