write program in matlab to do

Given square matrix A and vector X , find a permutation of the elements of X such that A*X=X or one of the permutation X

A = [ 2 -1 4 6 0 -2 -3 -3;-7 -7 -5 0 4 5 11 -3;-12 7 -5 2 7 1 -9 3;10 1 -1 5 1 -11 10 -9; -1 10 -6 7 -8 -11 1 1;5 -5 10 6 -6 7 -2 -12;9 10 0 8 1 -6 -12 -10 ; -3 9 -1 -6 -6 -8 6 7 ];

X= [7 11 3 10 5 12 8 9]