n42
1,2,3,4,5,6,7,8;
0,5,6,9,10,11,12,13;
0,5,7,14,15,16,17,18;
0,9,14,19,20,21,22,23;
0,10,15,19,24,25,26,27;
0,1,2,11,16,20,24,28;
0,1,7,12,21,25,29,30;
0,2,6,17,22,26,29,31;
0,13,18,23,27,28,30,31;
1,3,12,13,16,18,35,40;
1,4,14,18,20,30,36,41;
1,5,13,14,19,24,29,31;
1,6,9,21,28,31,40,41;
1,8,9,11,19,25,35,36;
2,3,10,11,26,34,35,37;
2,4,17,18,28,32,34,40;
2,5,9,18,20,31,35,38;
2,7,15,24,29,32,37,38;
2,8,9,10,15,16,22,40;
3,4,11,13,24,25,30,32;
3,5,10,16,24,33,38,39;
3,6,12,26,27,30,33,41;
3,7,18,25,27,34,36,38;
3,8,32,36,37,39,40,41;
4,5,11,17,19,20,26,33;
4,6,13,19,22,27,36,40;
4,7,14,21,24,27,28,33;
4,8,21,22,25,26,34,41;
5,8,12,15,26,29,35,39;
6,7,11,17,28,30,36,37;
6,8,10,19,21,29,33,37;
7,8,11,12,16,32,33,34;
15,17,19,23,31,35,37,40;
20,21,24,26,30,31,37,39;
14,15,22,27,31,38,39,41;
9,13,14,16,28,32,36,38;
10,13,22,23,25,29,35,38;
14,17,23,29,30,32,33,39;
16,17,20,22,34,35,36,39;
20,23,28,33,34,37,38,41;
9,12,15,18,23,25,32,41;
10,12,21,23,27,34,39,40.