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