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