n64
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;
2,3,29,41,42,43,44;
2,4,30,44,45,46,47;
2,5,31,36,37,43,45;
2,6,32,35,37,42,46;
2,7,33,35,36,41,47;
3,4,34,44,48,49,50;
3,5,32,33,35,43,48;
3,6,31,33,36,42,49;
3,7,31,32,37,41,50;
4,5,38,45,48,51,52;
4,6,39,46,49,51,53;
4,7,40,47,50,52,53;
5,6,29,33,37,41,51;
5,7,29,32,36,42,52;
6,7,29,31,35,43,53;
8,9,14,26,27,28,54;
8,10,15,54,55,56,57;
8,11,16,21,22,28,55;
8,12,17,20,22,27,56;
8,13,18,20,21,26,57;
9,10,19,54,58,59,60;
9,11,17,18,20,28,58;
9,12,16,18,21,27,59;
9,13,16,17,22,26,60;
10,11,23,55,58,61,62;
10,12,24,56,59,61,63;
10,13,25,57,60,62,63;
11,12,14,18,22,26,61;
11,13,14,17,21,27,62;
12,13,14,16,20,28,63;
14,15,19,54,61,62,63;
15,16,23,55,59,60,63;
15,17,24,56,58,60,62;
15,18,25,57,58,59,61;
19,20,23,56,57,58,63;
19,21,24,55,57,59,62;
19,22,25,55,56,60,61;
23,24,26,54,57,60,61;
23,25,27,54,56,59,62;
24,25,28,54,55,58,63;
29,30,34,44,51,52,53;
30,31,38,45,49,50,53;
30,32,39,46,48,50,52;
30,33,40,47,48,49,51;
34,35,38,46,47,48,53;
34,36,39,45,47,49,52;
34,37,40,45,46,50,51;
38,39,41,44,47,50,51;
38,40,42,44,46,49,52;
39,40,43,44,45,48,53.