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