X ( 2 , 14 , 3 , 13 ) X ( 4 , 2 , 5 , 1 ) X ( 5 , 11 , 6 , 10 ) X ( 7 , 20 , 8 , 21 ) X ( 9 , 1 , 10 , 22 ) X ( 12 , 19 , 13 , 20 ) X ( 14 , 4 , 15 , 3 ) X ( 15 , 9 , 16 , 8 ) X ( 17 , 6 , 18 , 7 ) X ( 18 , 11 , 19 , 12 ) X ( 21 , 16 , 22 , 17 ) {\displaystyle X(2,14,3,13)X(4,2,5,1)X(5,11,6,10)X(7,20,8,21)X(9,1,10,22)X(12,19,13,20)X(14,4,15,3)X(15,9,16,8)X(17,6,18,7)X(18,11,19,12)X(21,16,22,17)}
