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