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