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