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

int main(){
  int minx=0,maxx=100000;
  cout<<minx<<" "<<0<<"\n";
  int d1;cin>>d1;
  cout<<maxx<<" "<<0<<"\n";
  int d2;cin>>d2;
  int leftdis=0,rightdis=0;
  if(d1>=d2){
    minx=(minx+maxx)/2;
    leftdis=0;
    rightdis=d2;
  }else{
    maxx=(minx+maxx)/2;
    leftdis=d1;
    rightdis=0;
  }
  while(maxx-minx>1){
    int mid=(minx+maxx)/2;
    cout<<mid<<" "<<0<<"\n";
    int d;cin>>d;
    if(d==0)return 0;
    if(leftdis==0){
      leftdis=d;
      if(leftdis>rightdis){
        leftdis=0;
        maxx=mid;
      }else{
        rightdis=0;
        minx=mid;
      }
    }else{
      rightdis=d;
      if(leftdis>rightdis){
        leftdis=0;
        maxx=mid;
      }else{
        rightdis=0;
        minx=mid;
      }
    }
  }
  int resx=0;
  cout<<minx<<" "<<0<<"\n";
  cin>>d1;
  if(d1==0)return 0;
  cout<<maxx<<" "<<0<<"\n";
  cin>>d2;
  if(d2==0)return 0;
  if(d1>d2)resx=maxx;
  else resx=minx;
  int miny=0,maxy=100000;
  cout<<resx<<" "<<miny<<"\n";
  d1;cin>>d1;
  cout<<resx<<" "<<miny<<"\n";
  d2;cin>>d2;
  leftdis=0,rightdis=0;
  if(d1>=d2){
    miny=(miny+maxy)/2;
    leftdis=0;
    rightdis=d2;
  }else{
    maxy=(miny+maxy)/2;
    leftdis=d1;
    rightdis=0;
  }
  while(maxy-miny>1){
    int mid=(miny+maxy)/2;
    cout<<resx<<" "<<mid<<"\n";
    int d;cin>>d;
    if(d==0)return 0;
    if(leftdis==0){
      leftdis=d;
      if(leftdis>rightdis){
        leftdis=0;
        maxy=mid;
      }else{
        rightdis=0;
        miny=mid;
      }
    }else{
      rightdis=d;
      if(leftdis>rightdis){
        leftdis=0;
        maxy=mid;
      }else{
        rightdis=0;
        miny=mid;
      }
    }
  }
  int resy=0;
  cout<<resx<<" "<<miny<<"\n";
  cin>>d1;
  if(d1==0)return 0;
  cout<<resx<<" "<<maxy<<"\n";
  cin>>d2;
  if(d2==0)return 0;
  return 0;
}