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