#include <iostream>
#include <cstdio>
#include <vector>
#include <algorithm>
#include <utility>
#include <string>

using namespace std;

const int max_point = 1000000000;

int query(int x, int y) {
	cout << x << " " << y << endl;
	int ret;
	cin >> ret;
	return ret;
}

int main() {
	int a = query(0, 0);
	if (a == 0) {
		return 0;
	}

	int b = query(max_point, max_point);
	if (b == 0) {
		return 0;
	}

	int add = a + b;
	int sub = a - b;

	int val, x, y;
	for (int i = 0; i < 2; i++) {
		if (i == 0) {
			x = add;
			y = sub;
		} else {
			x = sub;
			y = add;
		}
		x /= add;
		y /= sub;

		if (x < 0 || y < 0) {
			continue;
		}

		for (int j = 0; j < 4; j++) {
			val = query(x + j / 2, y + j % 2);
			if (val == 0) {
				return 0;
			}
		}
	}

	return 0;
}