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