#include<iostream>
using namespace std;

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

class B : public A {
public:
	void print() { cout << "class B\n"; }
};

int main() {
	A a;
	B b;
	A* pa = &a;
	B* pb = &b;

	pa->print();
	pb->print();
	pb->A::print();
}

class A
class B
class A