matrix := [ [6,11,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0], [0,0,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0], [0,0,0,0,6,0,0,0,0,0,0,0,0,0,0,0,0], [0,0,0,0,0,6,0,0,0,0,0,0,0,0,0,0,0], [0,11,11,0,11,0,0,0,0,0,0,0,0,0,0,0,0], [0,0,0,6,0,0,0,0,0,0,0,0,0,0,0,0,0], [0,0,0,0,0,0,0,0,6,0,0,0,0,0,0,0,0], [0,0,0,0,0,0,0,0,0,6,0,0,0,0,0,0,0], [0,0,0,0,0,0,0,0,0,0,0,6,0,0,0,0,0], [0,0,0,0,0,0,0,0,0,0,0,0,0,6,0,0,0], [0,0,0,0,0,0,0,0,0,0,0,0,0,0,6,0,0], [0,9,8,0,12,0,14,0,8,0,15,1,0,0,2,0,0], [0,11,12,12,5,5,12,0,6,6,16,16,6,11,1,0,0], [0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,6,0], [0,6,5,0,6,0,11,0,5,0,1,1,0,0,5,0,0], [0,0,0,0,0,0,0,6,0,0,0,0,0,0,0,0,0], [6,0,6,12,0,0,6,0,0,6,0,0,6,0,6,0,11] ]*Z(17);