X ( 3 , 8 , 4 , 9 ) X ( 4 , 13 , 1 , 14 ) X ( 5 , 10 , 6 , 11 ) X ( 6 , 1 , 7 , 2 ) X ( 9 , 14 , 10 , 5 ) X ( 11 , 2 , 12 , 3 ) X ( 12 , 7 , 13 , 8 ) {\displaystyle X(3,8,4,9)X(4,13,1,14)X(5,10,6,11)X(6,1,7,2)X(9,14,10,5)X(11,2,12,3)X(12,7,13,8)}