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