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