matrix := [ [0,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0], [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], [0,0,6,0,0,0,0,0,0,0,0,0,0,0,0,0], [0,0,0,0,0,6,0,0,0,0,0,0,0,0,0,0], [0,0,0,0,6,0,0,0,0,0,0,0,0,0,0,0], [0,0,0,0,0,0,0,0,6,0,0,0,0,0,0,0], [0,0,0,0,0,0,0,0,0,6,0,0,0,0,0,0], [0,0,0,0,0,0,6,0,0,0,0,0,0,0,0,0], [0,0,0,0,0,0,0,6,0,0,0,0,0,0,0,0], [0,0,0,0,0,0,0,0,0,0,0,0,0,6,0,0], [0,0,0,0,0,0,0,0,0,0,0,0,0,0,6,0], [9,6,0,4,8,8,8,4,6,6,7,8,9,2,2,8], [0,0,0,0,0,0,0,0,0,0,6,0,0,0,0,0], [0,0,0,0,0,0,0,0,0,0,0,6,0,0,0,0], [6,3,8,1,7,7,3,2,1,4,3,6,4,9,0,2] ]*Z(11);