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