op ov

#include <bits/stdc++.h>

using namespace std;

class ComplexNr
{
public:
    int x, y;

    ComplexNr (int x, int y)
        : x(x), y(y) {};

    ComplexNr operator +(const ComplexNr& other) const
    {
        return ComplexNr(this -> x + other.x, this -> y + other.y);
    }
};

int main ()
{
    ComplexNr p1(1, 1), p2(5, 3);
    ComplexNr p = p1 + p2;
    cerr << p.x << ' ' << p.y;
    return 0;
}