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