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