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