n22
1,2,3,4,5;
0,6,7,8,9;
0,6,10,11,12;
0,7,10,13,14;
0,8,11,13,15;
0,9,12,14,15;
1,2,16,17,18;
1,3,16,19,20;
1,4,17,19,21;
1,5,18,20,21;
2,3,17,20,21;
2,4,18,19,20;
2,5,16,19,21;
3,4,16,18,21;
3,5,17,18,19;
4,5,16,17,20;
6,7,12,13,15;
6,8,10,14,15;
6,9,11,13,14;
7,8,11,12,14;
7,9,10,11,15;
8,9,10,12,13.