n80
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;
1,3,37,45,48,51,56,61;
1,4,38,46,50,54,59,61;
1,5,39,51,53,54,62,63;
1,6,40,48,50,53,64,65;
1,7,41,56,59,63,65,66;
1,8,42,45,46,62,64,66;
2,3,37,44,47,52,55,60;
2,4,38,43,49,52,57,58;
2,5,42,44,57,62,67,68;
2,6,41,58,60,62,63,64;
2,7,40,49,55,64,66,67;
2,8,39,43,47,63,66,68;
3,4,39,40,47,49,50,51;
3,5,38,42,45,50,52,53;
3,6,49,53,54,55,58,61;
3,7,38,40,48,58,59,60;
3,8,39,42,44,54,56,59;
4,5,37,39,43,44,45,46;
4,6,37,40,57,60,61,67;
4,7,44,47,54,58,63,67;
4,8,45,51,52,59,60,63;
5,6,43,52,55,63,65,67;
5,7,37,38,54,55,56,57;
5,8,46,50,51,56,65,68;
6,7,37,41,43,47,48,49;
6,8,47,50,52,54,57,62;
7,8,43,44,57,60,64,65;
9,10,16,27,28,32,34,69;
9,11,17,23,25,32,70,71;
9,12,21,22,26,27,70,72;
9,13,20,22,25,28,73,74;
9,14,19,34,71,72,73,75;
9,15,18,23,26,69,74,75;
17,21,27,31,34,36,71,76;
16,18,26,27,29,36,77,78;
10,15,23,27,30,71,72,77;
11,15,27,33,69,70,76,78;
16,21,22,29,34,35,73,79;
10,13,25,34,70,72,76,79;
17,20,22,24,34,69,70,75;
11,13,22,23,33,35,72,75;
10,12,22,30,33,69,74,79;
16,17,23,30,31,35,69,78;
12,13,23,24,70,74,77,78;
11,12,24,26,29,32,35,69;
16,20,24,31,32,71,73,77;
10,14,26,32,33,70,75,77;
17,18,28,32,35,36,73,75;
17,19,24,25,29,73,76,78;
11,14,25,26,30,72,74,78;
16,19,25,28,30,36,71,79;
10,11,24,28,71,74,75,76;
12,15,18,19,35,72,78,79;
12,14,19,21,29,30,31,77;
13,15,19,20,36,75,76,77;
13,14,31,33,36,73,78,79;
14,15,20,21,70,71,74,79;
18,20,28,29,31,69,76,79;
18,21,33,72,73,74,76,77;
37,42,46,49,51,52,54,67;
38,39,46,48,49,53,56,66;
38,41,43,45,55,60,61,66;
39,41,45,48,50,59,62,68;
40,41,47,55,57,58,65,68;
40,42,51,53,59,61,66,68;
41,42,49,50,56,57,61,64;
43,46,48,58,61,64,67,68;
44,45,53,55,56,63,64,68;
44,46,52,53,58,59,62,65;
47,48,51,60,62,65,66,67.