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