class shape

{

public void set width (int w){width=w;}

public void set height(int h)(height=h;)

protected int width, height;}

public interface paintcost{

class Rectangle else{

Static void.main(string[]args)

Rect.setwidth

Rect.setheight

    area=Rect get area();

    console wrtiline(Rect get cost(area));

    console writeline(Rect get(area));

    console readRay();

}

}

}