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