n64
1,2,3,4,5,6,7,8;
0,2,7,9,10,11,12,13;
0,1,7,14,15,16,17,18;
0,9,14,19,20,21,22,23;
0,10,15,19,24,25,26,27;
0,11,16,20,24,28,29,30;
0,12,17,21,25,28,31,32;
0,1,2,22,26,29,31,33;
0,13,18,23,27,30,32,33;
1,3,16,29,34,38,42,50;
1,4,15,26,34,39,43,52;
1,5,14,22,35,38,43,53;
1,6,17,31,35,39,42,54;
1,8,18,33,50,52,53,54;
2,3,11,29,35,39,43,51;
2,4,10,26,35,38,42,56;
2,5,9,22,34,39,42,55;
2,6,12,31,34,38,43,57;
2,8,13,33,51,55,56,57;
3,4,21,22,31,42,43,46;
3,5,25,26,31,38,39,40;
3,6,19,22,26,34,35,36;
3,7,11,16,19,21,25,44;
3,8,36,40,44,46,50,51;
4,5,28,29,31,34,35,37;
4,6,20,22,29,38,39,41;
4,7,10,15,20,21,28,45;
4,8,37,41,45,46,52,56;
5,6,24,26,29,42,43,47;
5,7,9,14,24,25,28,48;
5,8,37,40,47,48,53,55;
6,7,12,17,19,20,24,49;
6,8,36,41,47,49,54,57;
7,8,13,18,44,45,48,49;
9,10,16,17,21,24,42,58;
11,12,14,15,21,24,43,59;
21,23,32,44,45,46,58,59;
24,27,30,47,48,49,58,59;
9,11,15,17,20,25,39,62;
10,12,14,16,20,25,38,63;
20,23,30,41,45,49,62,63;
25,27,32,40,44,48,62,63;
9,12,15,16,19,28,34,60;
10,11,14,17,19,28,35,61;
22,23,33,36,41,46,53,55;
26,27,33,36,40,47,52,56;
19,23,27,36,44,49,60,61;
28,30,32,37,45,48,60,61;
29,30,33,37,41,47,50,51;
31,32,33,37,40,46,54,57;
9,13,23,48,55,58,60,62;
14,18,23,48,53,59,61,63;
10,13,27,45,56,58,61,63;
11,13,30,44,51,59,61,62;
12,13,32,49,57,59,60,63;
16,18,30,44,50,58,60,63;
15,18,27,45,52,59,60,62;
17,18,32,49,54,58,61,62;
34,36,37,50,52,55,57,60;
35,36,37,51,53,54,56,61;
42,46,47,50,54,55,56,58;
43,46,47,51,52,53,57,59;
38,40,41,50,53,56,57,63;
39,40,41,51,52,54,55,62.