#include <iostream>
using namespace std;
class base
{
    public:
    virtual void dis()
    {
        cout<<" Base Class";
    }
};
class derived:public base
{
    public:
    void dis()
    {
        cout<<"\n Derived Class";
    }
};
int main()
{
    base *p1,b;
    derived *p2,d;
    p1=&b;
    p1->dis();
    p2=&d;
    p2->dis();
    return 0;
}