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