#include <bits/stdc++.h>
#define rep(i,n) for(int i=(0);i<(n);i++)

using namespace std;

typedef long long ll;


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

	int lx = -1, rx = 1e7;
	auto calc = [](int x, int y){
		cout << x << " " << y;
		int d;
		cin >> d;

		if(d == 0) exit(0);
		return d;
	};

	while(rx - lx > 1){
		int mx = (lx + rx) / 2;
		(calc(mx, 0) - calc(mx-1, 0) > 0 ? rx : lx) = mx;
	}

	int ly = -1, ry = 1e7;
	while(ry - ly > 1){
		int my = (ly + ry) / 2;
		(calc(lx, my) - calc(lx, my-1) > 0 ? ry : ly) = my;
	}

	cout << lx << " " << ly << endl;
}