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

inline int check(int minx,int maxx){
  cout<<minx<<" "<<0<<"\n";
  int d1;cin>>d1;
  if(d1==0)return -1;
  cout<<maxx<<" "<<0<<"\n";
  int d2;cin>>d2;
  if(d2==0)return -1;
  if(d1==d2)return 0;
  else if(d1>d2)return 2;
  else return 1;
}

int main(){
  int minx=0,maxx=100000;
  int resx=0;
  bool flag=0;
  while(maxx-minx>1){
    int temp=check(minx,maxx);
    if(temp==-1)return 0;
    else if(temp==0){
      resx=(minx+maxx)/2;
      flag=1;
      break;
    }else if(temp==1){
      maxx=(minx+maxx)/2;
    }else{
      minx=(minx+maxx)/2;
    }
  }
  if(!flag){
    int temp=check(minx,maxx);
    if(temp==1)resx=minx;
    else resx=maxx;
  }
  cout<<resx<<" "<<0<<endl;
  int dd;cin>>dd;
  cout<<resx<<" "<<dd<<endl;
  return 0;
}