#include <stdio.h>

class BaseClass
{
    int n;
public:
    BaseClass ()
    {
        n = 666;
    }

    virtual void write ()
    {
        puts ("Preved from BaseClass!");
        printf ("%d\n", n);
    }
};

int
main ()
{
    BaseClass *obj = new BaseClass;

    obj->write ();

    return 0;
}