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