matrix := [ [0,5,0,0,0,0,0,0,0,0,0,0,0,0], [2,0,0,0,0,0,0,0,0,0,0,0,0,0], [0,0,0,5,0,0,0,0,0,0,0,0,0,0], [0,0,2,0,0,0,0,0,0,0,0,0,0,0], [0,0,0,0,0,5,0,0,0,0,0,0,0,0], [0,0,0,0,2,0,0,0,0,0,0,0,0,0], [0,0,0,0,0,0,0,0,5,0,0,0,0,0], [0,0,0,0,0,0,0,0,0,5,0,0,0,0], [0,0,0,0,0,0,2,0,0,0,0,0,0,0], [0,0,0,0,0,0,0,2,0,0,0,0,0,0], [6,3,5,0,3,2,1,6,6,4,3,2,3,0], [0,0,0,0,0,0,0,0,0,0,0,0,0,5], [6,1,2,1,5,0,2,3,4,0,5,5,4,6], [0,0,0,0,0,0,0,0,0,0,0,2,0,0] ]*Z(7);