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