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