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