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