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