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