n84
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;
1,2,37,38,39,40,41,42;
1,3,42,49,50,63,64,65;
1,4,38,51,54,58,61,63;
1,5,39,49,52,55,58,59;
1,6,40,48,51,59,65,66;
1,7,41,53,55,61,64,66;
1,8,37,48,50,52,53,54;
2,3,37,46,49,52,56,57;
2,4,40,57,63,65,68,69;
2,5,38,45,46,58,67,68;
2,6,39,49,60,62,65,67;
2,7,42,45,56,61,62,63;
2,8,41,52,58,60,61,69;
3,4,37,40,44,47,50,51;
3,5,47,52,53,64,68,69;
3,6,40,42,56,60,69,70;
3,7,46,51,63,66,68,70;
3,8,44,53,57,60,65,66;
4,5,37,38,43,53,55,57;
4,6,47,55,59,61,62,69;
4,7,44,53,54,62,67,68;
4,8,43,50,58,59,65,67;
5,6,37,42,45,47,48,49;
5,7,39,42,43,64,67,70;
5,8,46,48,57,59,69,70;
6,7,37,39,51,54,55,56;
6,8,45,54,61,66,67,70;
7,8,37,41,43,44,45,46;
9,15,16,22,27,31,34,36;
9,11,18,27,71,72,73,74;
9,12,19,32,34,71,75,76;
9,13,17,22,24,72,75,77;
9,14,21,36,73,76,77,78;
9,10,20,24,31,32,74,78;
27,30,32,36,72,75,78,79;
22,26,29,36,75,76,80,81;
18,20,31,35,36,72,77,80;
16,18,25,33,36,73,79,81;
22,23,28,31,73,74,77,81;
13,15,31,33,72,73,78,82;
10,12,16,19,31,80,81,82;
10,15,22,30,72,74,80,83;
11,13,22,25,34,73,76,83;
12,15,16,21,23,71,73,83;
14,15,23,26,27,29,74,78;
11,15,29,34,35,71,80,82;
12,14,27,28,34,73,79,82;
16,20,24,34,75,79,80,83;
16,17,26,27,33,71,75,82;
11,12,18,21,30,76,79,80;
12,13,28,30,33,75,81,83;
19,21,24,26,71,74,77,80;
11,14,20,21,28,35,74,83;
19,20,28,29,75,77,78,82;
10,11,17,20,25,72,79,82;
10,14,23,32,76,79,81,83;
10,13,17,19,26,30,76,78;
13,14,25,26,35,77,81,82;
18,19,29,30,32,35,74,81;
17,18,23,25,29,71,76,77;
17,21,23,24,28,33,78,79;
24,25,32,33,35,71,72,83;
38,39,52,54,57,60,68,70;
38,40,43,45,48,50,63,70;
38,41,46,47,48,51,52,55;
38,42,47,50,53,60,61,67;
39,40,43,44,56,57,59,62;
39,41,44,51,58,64,65,68;
40,41,45,47,60,62,66,68;
41,42,43,48,53,62,65,69;
43,46,55,56,58,63,64,69;
44,45,49,50,54,56,58,60;
44,46,47,49,59,64,66,67;
48,49,54,55,57,62,63,66;
50,51,52,56,59,61,64,70.