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