#include <iostream>
using namespace std;

int main() {
	int d, D;
	
	cout << "0 0" << endl;
	cin >> d;
	if (!d) return 0;
	
	cout << "0 " << d << endl;
	cin >> D;
	if (!D) return 0;
	
	cout << D / 2 << " " << d - D / 2 << endl;
	return 0;
}