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