#include <iostream>
 
class A {
public:
  virtual ~A() {
    std::cout << "A DESTRUCTOR" << std::endl;
  }
};
class B : public A{
public:
  virtual ~B() {
    std::cout << "B DESTRUCTOR" << std::endl;
  }
};
class C : public B{
public:
  virtual ~C() {
    std::cout << "C DESTRUCTOR" << std::endl;
  }
};
 
int main(int argc, char** argv)
{
  A * aPtr = new C(); // The cast here is not needed
  C * cPtr = new C();
 
  delete aPtr;
  delete cPtr;
  return 0;
}

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