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