#include <iostream>

class point {
public:
    point(int x, int y)
        : x_ { x }
        , y_ { y } {};
    [[nodiscard]] int x() const
    {
        return this->x_;
    }
    [[nodiscard]] int y() const
    {
        return this->y_;
    }
    static point add(point const& p1, point const& p2);

private:
    int x_;
    int y_;
};

void print(std::ostream& os, point const& p)
{
    os << "(" << p.x() << "," << p.y() << ")";
}

point point::add(point const& p1, point const& p2)
{
    return point { p1.x() + p2.x(), p1.y() + p2.y() };
}

auto main() -> int
{
    point p1 { 1, 2 };
    point p2 { 2, 3 };
    print(std::cout, point::add(p1, p2));
    std::cout << "\n";
}