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

#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define repi(i,a,b) for(int i=(int)(a);i<(int)(b);i++)
#define all(x) (x).begin(),(x).end()
#define foreach(u,v) for(auto (u) : (v))
#define pb push_back
#define mp make_pair
#define mt make_tuple

typedef long long ll;
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef pair<ll, ll> pll;
typedef vector<ll> vl;

const int inf = 1e9;
const ll linf = 1LL<<60;
const ll mod = 1e9 + 7;
const double eps = 1e-9;

/*
*/

int ask(int x)
{
  cout << x << " " << 0 << endl;
  int d;
  cin >> d;
  return d;
}

int main()
{
  int x, y;
  int l = 0, r = 100000;
  while(r-l > 1){
    int d1 = ask(l);
    if(d1 == 0) return 0;
    int d2 = ask(r);
    if(d2 == 0) return 0;

    if(d1 == d2){
      break;
    }else if(d1 < d2){
      r = (l+r)/2;
    }else{
      l = (l+r)/2;
    }
  }
  
  int d1 = ask(l);
  int d2 = ask(r);
  if(d1 == d2) x = (l+r)/2;
  else if(d1 < d2) x = l;
  else x = r;

  cout << x << " " << 0 << endl;
  cin >> y;

  cout << x << " " << y << endl;

  return 0;
}