n48
1,2,3,4,5,6,7,8;
0,2,3,9,10,11,12,13;
0,1,3,14,15,16,17,18;
0,1,2,19,20,21,22,23;
0,7,8,9,14,19,24,25;
0,6,8,10,15,20,26,27;
0,5,7,11,16,21,26,28;
0,4,6,12,17,22,24,28;
0,4,5,13,18,23,25,27;
1,4,12,13,14,19,34,35;
1,5,11,13,15,20,41,43;
1,6,10,12,16,21,38,41;
1,7,9,11,17,22,34,38;
1,8,9,10,18,23,35,43;
2,4,9,17,18,19,40,42;
2,5,10,16,18,20,36,37;
2,6,11,15,17,21,36,44;
2,7,12,14,16,22,42,44;
2,8,13,14,15,23,37,40;
3,4,9,14,22,23,29,31;
3,5,10,15,21,23,30,32;
3,6,11,16,20,22,32,33;
3,7,12,17,19,21,31,33;
3,8,13,18,19,20,29,30;
4,7,25,28,31,34,39,42;
4,8,24,27,29,35,39,40;
5,6,27,28,32,36,39,41;
5,8,25,26,30,37,39,43;
6,7,24,26,33,38,39,44;
19,23,25,30,31,35,40,45;
20,23,27,29,32,37,43,45;
19,22,24,29,33,34,42,45;
20,21,26,30,33,36,41,45;
21,22,28,31,32,38,44,45;
9,12,24,31,35,38,42,46;
9,13,25,29,34,40,43,46;
15,16,26,32,37,41,44,47;
15,18,27,30,36,40,43,47;
11,12,28,33,34,41,44,46;
24,25,26,27,28,45,46,47;
14,18,25,29,35,37,42,47;
10,11,26,32,36,38,43,46;
14,17,24,31,34,40,44,47;
10,13,27,30,35,37,41,46;
16,17,28,33,36,38,42,47;
29,30,31,32,33,39,46,47;
34,35,38,39,41,43,45,47;
36,37,39,40,42,44,45,46.