class Shape {
protected:
double width;
double height;
double radius;
double area;
std::string shapeName;

public:
Shape(double width_, double height_);
virtual void print()=0;
virtual double getArea()=0;
void setRadius(double radius_);
};
class TwoDimensionalShape:public Shape {
  public:
TwoDimensionalShape();
};
class ThreeDimensionalShape:public Shape {
protected:
double depth;
double volume;
public:
ThreeDimensionalShape(double width_, double height_, double depth);
virtual double getVolume()=0;
void print();
};

TwoDimensionalShape::TwoDimensionalShape() : Shape(width = 0, height_ = 0) { }
ThreeDimensionalShape::ThreeDimensionalShape() : Shape(width_, height_) { volume = -1; depth = -1; }
Circle::Circle(double radius_) : TwoDimensionalShape() { radius = radius_; shapeName = "Circle"; }