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