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