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