matrix := [ [0,6,0,0,0,0,0,0,0,0,0], [6,0,0,0,0,0,0,0,0,0,0], [0,0,0,6,0,0,0,0,0,0,0], [0,0,6,0,0,0,0,0,0,0,0], [0,0,0,0,0,6,0,0,0,0,0], [0,0,0,0,6,0,0,0,0,0,0], [0,0,0,0,0,0,0,0,6,0,0], [0,0,0,0,0,0,0,0,0,6,0], [0,0,0,0,0,0,6,0,0,0,0], [0,0,0,0,0,0,0,6,0,0,0], [6,6,1,1,5,5,6,4,6,4,5] ]*Z(11);