#include <iostream>
using namespace std;
class base {
protected:
int b_;
public:
base(int b): b_(b) { cout << b_ * b_ << " "; }
virtual void display() { }
};
class derived : public base {
int d_;
public:
derived(int b, int d) : base(b), d_(d) { cout << d_ * d_ << " "; }
void display();
};
class appObj {
appObj(int x, int y) { cout << x + y << " " << endl; }
____________________ //what code should be filled
}; // End of class "appObj"
void derived::display() {
derived obj1(b_, d_);
}
int main() {
int m, n;
cin >> m >> n;
base *ptr = new derived(m, n);
ptr->display();
return 0;
}