#include <iostream>
 
class move
{
private:
	double x, y;
 
public:
	move(double x = .0, double y = .0) : x(x), y(y)
	{
	}
 
	void show() const
	{
		std::cout << "x: " << x << ", y: " << y << std::endl;
	}
 
	move add(const move& m) const
	{
		return move(m.x + x, m.y + y);
	}
 
	void reset(double a = .0, double b = .0)
	{
		x = a;
		y = b;
	}
};
 
int main() {
	move m(2.5, 2.5);
	move new_move = m.add(move(2.5, 2.5));
	new_move.show();
	return 0;
}

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