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