#include <iostream>
using namespace std;
class B {
public:
int x;
B(int i = 16) { x = i; }
B(){}
B f(B ob) { return x + ob.x; }
};
class D : public B {
public:
D(int i = 25) { x = i; }
B f(B ob) { return x + ob.x + 1; }
void afisare() { cout << x; }
};
int main()
{
B *p1 = new D, *p2 = new B, *p3 = new B(p1->f(*p2));
cout << p3->x;
return 0;
}