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