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