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