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