n52
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;
0,6,8,11,17,22,27,28;
0,12,18,23,27,29,30,31;
0,4,8,13,19,24,29,32;
0,14,20,25,28,30,32,33;
0,4,6,15,21,26,31,33;
1,2,34,35,36,37,38,39;
1,3,27,28,31,33,39,40;
1,4,29,30,33,35,46,48;
1,5,13,15,29,31,36,45;
1,6,12,15,27,37,47,48;
1,7,38,40,43,45,46,47;
1,8,12,13,28,30,34,43;
2,3,34,40,41,42,43,44;
2,4,19,21,36,41,45,46;
2,5,35,44,45,47,48,49;
2,6,17,21,39,40,47,50;
2,7,37,42,46,48,50,51;
2,8,17,19,38,43,49,51;
3,4,24,25,30,31,34,36;
3,5,36,39,41,49,50,51;
3,6,22,25,33,44,48,50;
3,7,22,24,28,32,43,51;
3,8,27,30,32,42,48,49;
4,5,10,13,26,34,35,41;
4,7,10,15,25,32,45,48;
5,6,11,12,31,34,39,44;
5,7,11,15,22,26,47,50;
5,8,10,12,22,29,48,51;
6,7,25,26,28,34,37,40;
7,8,10,11,24,34,38,42;
9,15,16,22,27,29,32,33;
9,11,18,27,38,39,47,49;
9,12,17,22,23,43,44,47;
9,13,20,32,41,43,45,49;
9,14,21,33,35,39,41,44;
9,10,19,23,29,35,38,45;
10,14,16,19,32,41,42,51;
16,17,23,27,37,38,40,42;
16,20,26,33,40,41,46,50;
14,15,16,21,25,36,37,50;
16,18,24,29,36,38,46,51;
12,14,17,18,28,37,39,51;
11,14,17,20,42,44,49,50;
13,14,18,19,30,35,36,49;
11,13,18,20,24,26,28,31;
18,21,23,26,35,37,46,47;
19,20,23,24,30,42,43,46;
20,21,23,25,31,40,44,45.