#include <iostream>
using namespace std;

class Foo {
  int x;

public:
  Foo(int _x) { x = _x; };
  Foo operator+(Foo);
  int get() { return x; }
};

Foo Foo::operator+(Foo bar) {
  return Foo(x + bar.get());
}

int main() {
  Foo bar = Foo(-3);
  Foo baz = Foo(8);

  cout << (bar + baz).get();
}