#include "bits/stdc++.h"
using namespace std;
#define ll long long int
#define rep(i,n) for( int i = 0; i < n; i++ )
#define rrep(i,n) for( int i = n; i >= 0; i-- )
#define REP(i,s,t) for( int i = s; i <= t; i++ )
#define RREP(i,s,t) for( int i = s; i >= t; i-- )
#define dump(x)  cerr << #x << " = " << (x) << endl;
#define INF 2000000000
#define mod 1000000007
#define INF2 1000000000000000000


int main(void)
{
    cin.tie(0);
    ios::sync_with_stdio(false);
	int X1 = 0, X2 = 1000000;
	int Y1 = 0, Y2 = 1000000;
	bool small = true;
	while (true) {
		int d1, d2;
		int Xm = (X1 + X2) / 2;
		int Ym = (Y1 + Y2) / 2;
		if (small) {
			cout << X1 << " " << Y1 << endl << flush;
			cin >> d1;
			if (d1 == 0) return 0;
		}
		else {
			cout << X2 << " " << Y2 << endl << flush;
			cin >> d2;
			if (d2 == 0) return 0;
		}
		if (d1 < d2) {
			X2 = Xm;
			Y2 = Ym;
			small = false;
		}
		else {
			X1 = Xm;
			Y1 = Ym;
			small = true;
		}
 	}

    return 0;
}