#include <iostream>

using namespace std;

// Prototype

class Prototype {

public:

virtual Prototype* Clone() = 0;

virtual ~Prototype() { }

};

class ConcretePrototype :public Prototype {

public:

ConcretePrototype() { }

ConcretePrototype(const ConcretePrototype&cp) {

cout << "ConcretePrototype copy..." << endl;

}

Prototype* Clone() {

return new ConcretePrototype(*this);

}

};

int main() {

Prototype *prototype = new ConcretePrototype();

cout << prototype << endl;

Prototype* prototype1 = prototype->Clone();

cout << prototype1 << endl;

Prototype* prototype2 = prototype->Clone();

cout << prototype2 << endl;

delete prototype;

delete prototype1;

delete prototype2;

return 0;

}