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