#include<iostream> 
using namespace std; 
class Base { 
public: 
  Base() { 
    cout<<"Constructing Base \n"; 
  } 
  ~Base() { 
    cout<<"Destructing Base \n"; 
  }	 
}; 
class Derived: public Base { 
public: 
  Derived() {
    cout<<"Constructing Derived \n"; 
  } 
  ~Derived() {
    cout<<"Destructing Derived \n"; 
  } 
}; 
 
int main(void) 
{ 
	Derived *d = new Derived(); 
	Base *b = d; 
	delete b; 
	return 0; 
}