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