#include <iostream>

using namespace std;


class  Base {
public:
virtual void myName() {cout<<"Base\n";}
};



class Class1 : public Base {
public:
void myName(){cout<<"Class1"<<endl;}
};

class Class2 : public Base {
public:
void myName(){cout<<"Class2"<<endl;}

};

//code blocks
int main()
{
Class1 c1;
Class2 c2;
Base *a=&c1,*a1=&c2;
Base b;
b.myName();
a->myName();
a1->myName();
}