matrix := [ [0*Z(9),Z(9)^8,0*Z(9),0*Z(9),0*Z(9),0*Z(9)], [Z(9)^4,0*Z(9),0*Z(9),0*Z(9),0*Z(9),0*Z(9)], [0*Z(9),0*Z(9),0*Z(9),Z(9)^8,0*Z(9),0*Z(9)], [0*Z(9),0*Z(9),Z(9)^4,0*Z(9),0*Z(9),0*Z(9)], [0*Z(9),0*Z(9),0*Z(9),0*Z(9),0*Z(9),Z(9)^8], [0*Z(9),0*Z(9),0*Z(9),0*Z(9),Z(9)^4,0*Z(9)] ];