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