#include <iostream>

using namespace std;

struct Point {
    int x, y;

    Point(int x = 0, int y = 0) : x(x), y(y) {}
};


Point operator+(const Point &A, const Point &B) {
    return Point(A.x + B.x, A.y + B.y);
}

ostream &operator<<(ostream &out, const Point &p) {
    out << "(" << p.x << "," << p.y << ")";
    return out;
}

int main() {
    Point a, b(1, 2);
    a.x = 3;
    cout << a + b << "\n";
    return 0;
}