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