#include <algorithm>
#include <cfloat>
#include <climits>
#include <cmath>
#include <complex>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <functional>
#include <iostream>
#include <map>
#include <memory>
#include <queue>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <utility>
#include <vector>
 
using namespace std;
 
#define sz size()
#define pb push_back
#define mp make_pair
#define fi first
#define se second
#define all(c) (c).begin(), (c).end()
#define rep(i,a,b) for(int i=(a);i<(b);++i)
#define clr(a, b) memset((a), (b) ,sizeof(a))
 
#define MOD 1000000009

long long f(long long a){
  cout << 0 << " " << a << endl;
  long long b;
  cin>>b;
  return b;
}

int main(){
  long long left = 0;
  long long right = 100000;

  while(left != right){
    long long d = (right - left) / 3;
    long long l = f(left + d);
    long long r = f(right - d);
    if(d == 0){
      if(l > r)left++;
      else right--;
    }
    else{
      if(l > r)left = left + d;
      else right = right - d;
    }
  }
  cout << 0 << " " << left << endl;
  long long b;
  cin>>b;
  cout << b << " " << left << endl;
  return 0;
}