#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

int q(int x, int y) {
	cout << x << " " << y << endl;
	cout.flush();
	int res;
	cin >> res;
	return res;
}

int main() {
	cin.tie(0);
	ios::sync_with_stdio(false);

	int ans[2];
	for(int k = 0; k < 2; k++) {
		int r1 = q(0, 0);
		int r2 = q(0, 1000000000);
		int d = abs(r1 - r2);
		if(r1 < r2) {
			ans[k] = (1e9 - d) / 2;
		}
		else {
			ans[k] = 1e9 - (1e9 - d) / 2;
		}
	}
	assert(q(ans[0], ans[1]));
}