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