n80
1,2,3,4,5,6,7;
0,8,9,10,11,12,13;
0,8,14,15,16,17,18;
0,9,14,19,20,21,22;
0,10,15,19,23,24,25;
0,11,16,20,23,26,27;
0,12,17,21,24,26,28;
0,13,18,22,25,27,28;
1,2,29,30,31,32,33;
1,3,29,34,35,36,37;
1,4,30,34,38,39,40;
1,5,31,35,38,41,42;
1,6,32,36,39,41,43;
1,7,33,37,40,42,43;
2,3,33,37,44,45,46;
2,4,32,39,44,47,48;
2,5,31,45,47,49,50;
2,6,30,39,46,49,51;
2,7,29,37,48,50,51;
3,4,35,38,44,52,53;
3,5,34,38,46,49,54;
3,6,36,45,49,52,55;
3,7,29,33,53,54,55;
4,5,34,35,47,56,57;
4,6,30,32,52,56,58;
4,7,40,48,53,57,58;
5,6,41,45,46,57,58;
5,7,42,50,54,56,58;
6,7,43,51,55,56,57;
8,9,18,22,59,60,61;
8,10,17,24,59,62,63;
8,11,16,60,62,64,65;
8,12,15,24,61,64,66;
8,13,14,22,63,65,66;
9,10,20,23,59,67,68;
9,11,19,23,60,69,70;
9,12,21,61,67,69,71;
9,13,14,18,68,70,71;
10,11,19,20,62,72,73;
10,12,15,17,67,72,74;
10,13,25,63,68,73,74;
11,12,26,65,66,69,72;
11,13,27,64,66,70,73;
12,13,28,64,65,71,74;
14,15,19,66,70,72,75;
14,16,21,26,65,71,75;
14,17,20,26,63,68,72;
15,16,23,64,67,70,71;
15,18,25,61,71,74,75;
16,17,20,21,62,67,76;
16,18,27,60,70,75,76;
17,18,28,59,68,74,76;
19,21,24,60,61,62,75;
19,22,25,61,66,69,73;
20,22,27,59,63,73,76;
21,22,28,60,65,69,76;
23,24,27,28,59,60,64;
23,25,26,28,68,69,71;
24,25,26,27,63,66,75;
29,30,34,51,54,56,77;
29,31,35,50,52,55,56;
29,32,36,48,52,53,77;
30,31,38,49,52,77,78;
30,33,40,46,54,58,78;
31,32,42,43,47,56,77;
31,33,41,43,45,55,78;
32,33,41,42,44,53,58;
34,36,39,47,49,77,79;
34,37,40,46,51,57,79;
35,36,41,53,55,57,79;
35,37,42,44,47,50,79;
36,37,43,45,47,48,57;
38,39,41,44,46,78,79;
38,40,42,53,54,77,79;
39,40,43,48,51,77,78;
44,45,48,50,52,58,78;
49,50,51,54,55,78,79;
59,61,62,64,67,73,74;
62,63,65,72,74,75,76;
67,68,69,70,72,73,76.