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