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