#include <iostream>

int main() {
	std::cout << "+0.0 + +0.0 == " << +0.0 + +0.0 << std::endl;
	std::cout << "+0.0 + -0.0 == " << +0.0 + -0.0 << std::endl;
	std::cout << "-0.0 + +0.0 == " << -0.0 + +0.0 << std::endl;
	std::cout << "-0.0 + -0.0 == " << -0.0 + -0.0 << std::endl;
	return 0;
}