#include <bits/stdc++.h>
  
using namespace std;
  
#define rep(i,n) REP(i,0,n)
#define REP(i,s,e) for(int i=(s); i<(int)(e); i++)
#define pb push_back
#define all(r) r.begin(),r.end()
#define rall(r) r.rbegin(),r.rend()
#define fi first
#define se second
  
typedef long long ll;
typedef vector<int> vi;
typedef vector<ll> vl;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
 
const int INF = 1e9;
const ll MOD = 1e9 + 7;
double EPS = 1e-8;

int main(){
	int lx=0, rx = 100001;
	rep(i, 25) {
		int mx1 = lx +(rx-lx)/3, mx2 = lx +(rx-lx)*2/3;
		int d1, d2;
		cout << mx1 << " " << 0 << endl;
		cin >> d1;
		if(d1 == 0) return 0;
		cout << mx2 << " " << 0 << endl;
		cin >> d2;
		if(d2 == 0) return 0;
		if(d1 < d2) rx = mx2;
		else lx = mx1;
	}
	int ly = 0, ry = 100001;
	rep(i, 25) {
		int my1 = ly +(ry-ly)/3, my2 = ly +(ry-ly)*2/3;
		int d1, d2;
		cout << lx <<" " << my1 << endl;
		cin >> d1;
		if(d1 == 0) return 0;
		cout << lx <<" " << my2 << endl;
		cin >> d2;
		if(d2 == 0) return 0;
		if(d1 < d2) ry = my2;
		else ly = my1;
	}
}