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