n48 1,2,3,4,5,6,7,8; 0,9,10,11,12,13,14,15; 0,3,8,9,16,17,18,19; 0,2,8,10,20,21,22,23; 0,11,16,20,24,25,26,27; 0,12,17,21,24,28,29,30; 0,13,18,22,25,28,31,32; 0,14,19,23,26,29,31,33; 0,2,3,15,27,30,32,33; 1,2,10,15,34,35,36,37; 1,3,9,15,39,41,43,47; 1,4,24,27,30,34,41,42; 1,5,25,27,32,35,45,47; 1,6,29,30,33,36,43,45; 1,7,31,32,33,37,39,42; 1,8,9,10,24,25,29,31; 2,4,23,33,34,39,45,47; 2,5,21,30,35,39,42,43; 2,6,22,32,37,40,43,47; 2,7,20,27,36,40,42,45; 3,4,19,33,38,40,42,43; 3,5,17,30,34,36,40,47; 3,6,18,32,35,36,41,42; 3,7,16,27,34,35,38,39; 4,5,11,15,27,37,39,40; 4,6,12,15,30,35,38,47; 4,7,35,37,41,43,45,46; 4,8,11,12,19,23,24,46; 5,6,34,37,38,42,44,45; 5,7,13,15,32,36,38,43; 5,8,11,13,17,21,25,44; 6,7,14,15,33,34,40,41; 6,8,12,14,18,22,29,44; 7,8,13,14,16,20,31,46; 9,11,16,21,23,28,31,39; 9,12,17,22,23,25,26,47; 9,13,19,21,22,29,43,46; 9,14,18,24,26,28,41,46; 20,23,25,28,29,44,45,46; 10,14,16,17,23,24,34,44; 18,19,20,21,24,31,42,44; 10,11,22,26,31,37,44,46; 11,14,17,19,20,22,28,40; 10,13,17,18,20,26,29,36; 28,30,32,38,39,40,41,45; 12,13,16,19,26,28,38,44; 26,27,33,36,37,38,41,47; 10,12,16,18,21,25,35,46.