n88
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;
1,3,37,46,51,63,65,66;
1,4,38,46,50,53,57,62;
1,5,39,43,47,53,66,67;
1,6,40,43,50,60,63,68;
1,7,41,47,51,57,59,60;
1,8,42,59,62,65,67,68;
2,3,37,44,49,64,69,70;
2,4,38,45,48,58,64,71;
2,5,39,44,52,54,56,58;
2,6,40,45,49,54,55,61;
2,7,41,48,52,61,69,72;
2,8,42,55,56,70,71,72;
3,4,40,41,48,49,50,51;
3,5,38,40,53,54,63,64;
3,6,39,41,54,60,66,69;
3,7,38,39,44,46,47,48;
3,8,47,50,53,60,65,70;
4,5,37,40,43,44,45,46;
4,6,37,41,57,61,63,64;
4,7,44,49,58,59,61,62;
4,8,43,51,53,59,63,71;
5,6,45,52,64,67,68,69;
5,7,37,38,57,58,66,69;
5,8,46,47,56,57,63,68;
6,7,37,39,43,49,51,52;
6,8,50,51,55,57,66,67;
7,8,43,46,60,62,66,72;
9,10,16,27,28,32,34,73;
9,11,17,23,25,32,74,75;
9,12,18,24,25,34,76,77;
9,13,19,22,23,27,76,78;
9,14,20,22,24,28,74,79;
9,15,21,73,75,77,78,79;
12,13,27,30,34,36,80,81;
16,18,25,27,29,75,78,80;
17,19,27,31,73,75,81,82;
10,11,25,27,33,36,76,82;
12,14,25,26,33,74,80,83;
17,20,22,25,77,78,82,83;
16,19,22,29,34,77,79,81;
11,13,22,26,35,74,81,82;
10,14,22,30,34,35,76,83;
18,20,31,34,73,79,80,83;
11,12,23,26,30,76,84,85;
18,19,23,24,75,79,84,86;
19,21,35,76,77,82,84,87;
18,21,33,76,78,83,85,86;
11,14,28,32,33,35,85,87;
17,18,29,32,73,77,84,85;
14,15,29,30,79,80,85,86;
13,14,24,26,36,76,86,87;
19,20,28,29,73,78,86,87;
11,15,29,36,75,81,84,87;
10,13,23,28,30,33,74,86;
16,17,23,28,31,78,79,85;
10,15,26,73,82,83,84,86;
10,12,24,32,35,36,74,84;
12,15,31,35,77,81,83,85;
13,15,31,33,78,80,82,87;
16,20,24,31,32,75,77,87;
16,21,26,73,80,81,85,87;
17,21,30,74,79,81,83,84;
20,21,36,74,75,80,82,86;
37,42,45,52,58,61,65,70;
38,41,47,50,63,66,71,72;
38,42,44,45,54,62,69,72;
39,40,46,51,53,55,56,60;
39,42,48,49,55,58,67,69;
40,42,44,48,56,61,64,68;
41,42,49,52,54,59,64,71;
43,44,47,52,59,68,70,72;
43,45,49,50,62,67,70,71;
45,46,48,50,55,65,68,72;
47,48,51,52,56,65,67,71;
53,54,55,58,62,65,66,71;
53,56,57,58,59,64,67,70;
54,56,59,60,61,63,65,72;
55,57,60,61,62,68,69,70.