#include <iostream>

using namespace std;

// Base class
//
class Shape {
protected:
  int width;
  int height;

public:
  void setWidth(int w) {
    width = w;
  }
  void setHeight(int h) {
    height = h;
  }

};

// Derived class
class Rectangle: public Shape {
public:
  int getArea() {
    return (width * height);
  }
};

int main(void) {
  Rectangle Rect;

  Rect.setWidth(5);
  Rect.setHeight(7);

  // Print the area of the object.
  cout << "Total area: " << Rect.getArea() << endl;

  return 0;
}