matrix := [ [0,11,0,0,0,0,0,0], [0,0,6,0,0,0,0,0], [11,0,0,0,0,0,0,0], [0,0,0,0,6,0,0,0], [0,0,0,0,0,0,6,0], [0,0,0,0,0,0,0,6], [0,0,0,6,0,0,0,0], [16,1,1,13,13,11,13,11] ]*Z(17);