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