#include <iostream>

using namespace std;

class Parent
{
public:
    Parent()                { /*cout << "Parent::Parent()" << "\n";*/ }
    virtual ~Parent()       { /*cout << "Parent::~Parent()" << "\n";*/ }

    virtual int f()         { cout << "Parent::f()\n"; return 0; }
    virtual int f() const   { cout << "Parent::f() const\n"; return 0; }
};

class Child : public Parent
{
public:
    void y() {};

    Child()                 { /*cout << "Child::Child()" << "\n";*/ }
    ~Child()                { /*cout << "Child::~Child()" << "\n";*/ }

    virtual int f()         { cout << "Parent::f()\n"; return 0; }
    virtual int f() const   { cout << "Parent::f() const\n"; return 0; }
};

int main (int argc, char* argv[])
{
    {
        Parent* pParentIsChild = new Child();

        pParentIsChild->f();

        delete pParentIsChild;
    }

    // ---

    char asd; cin >> asd;

	return 0;
}