matrix := [ [0,0,3,0,0,0,0,0,0,0,0,0,0,0], [0,2,2,0,0,0,0,0,0,0,0,0,0,0], [0,0,0,0,3,0,0,0,0,0,0,0,0,0], [0,0,0,0,0,3,0,0,0,0,0,0,0,0], [0,0,0,0,0,0,0,3,0,0,0,0,0,0], [0,4,4,2,2,1,0,1,0,0,0,0,0,0], [0,0,0,0,0,0,0,0,0,3,0,0,0,0], [3,1,3,0,2,0,0,3,0,0,0,0,0,0], [0,0,0,0,0,0,0,0,0,0,0,3,0,0], [0,0,0,0,0,0,0,0,0,0,0,0,0,3], [2,1,2,4,0,0,4,3,3,1,0,3,4,2], [3,4,0,3,2,4,4,3,0,3,2,4,4,0], [4,1,1,1,1,3,3,3,2,4,0,3,3,3], [0,2,3,0,4,0,3,4,0,1,0,0,0,4] ]*Z(5);