#include <iostream>
using namespace std;

class base {
public:
	virtual void print() { 
	    cout << "print base class\n";
	    }

	void show() { 
	    cout << "show base class\n";
	    }
};

class derived : public base {
public:
	void print() {
	    cout << "print derived class\n";
	    }

	void show() {
	    cout << "show derived class\n"; 
	    
	}
};

int main()
{
	base* bptr;
	derived d;
	bptr = &d;
	bptr->print();
	bptr->show();

	return 0;
}