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