#include <bits/stdc++.h>
using namespace std;
#define F first
#define S second
#define pi M_PI
#define R cin>>
#define Z class
#define ll long long
#define ln cout<<'\n'
#define in(a) insert(a)
#define pb(a) push_back(a)
#define pd(a) printf("%.10f\n",a)
#define mem(a) memset(a,0,sizeof(a))
#define all(c) (c).begin(),(c).end()
#define iter(c) __typeof((c).begin())
#define rrep(i,n) for(int i=(int)(n)-1;i>=0;i--)
#define REP(i,m,n) for(int i=(int)(m);i<(int)(n);i++)
#define rep(i,n) REP(i,0,n)
#define tr(it,c) for(iter(c) it=(c).begin();it!=(c).end();it++)
template<Z A>void pr(A a){cout<<a;ln;}
template<Z A,Z B>void pr(A a,B b){cout<<a<<' ';pr(b);}
template<Z A,Z B,Z C>void pr(A a,B b,C c){cout<<a<<' ';pr(b,c);}
template<Z A,Z B,Z C,Z D>void pr(A a,B b,C c,D d){cout<<a<<' ';pr(b,c,d);}
template<Z A>void PR(A a,ll n){rep(i,n){if(i)cout<<' ';cout<<a[i];}ln;}
ll check(ll n,ll m,ll x,ll y){return x>=0&&x<n&&y>=0&&y<m;}
const ll MAX=1000000007,MAXL=1LL<<61,dx[4]={-1,0,1,0},dy[4]={0,1,0,-1};
typedef pair<int,int> P;

void Main() {
  int l=0,r=100001;
  rep(i,50) {
    int m1=(l*2+r)/3,m2=(l+r*2)/3,d1,d2;
    pr(m1,0);cout.flush();cin>>d1;if(!d1)return;
    pr(m2,0);cout.flush();cin>>d2;if(!d2)return;
    if(d1>=d2) l=m1;
    else r=m2;
  }
  int x=(l+r)/2;
  l=0,r=100001;
  rep(i,50) {
    int m1=(l*2+r)/3,m2=(l+r*2)/3,d1,d2;
    pr(x,m1);cout.flush();cin>>d1;if(!d1)return;
    pr(x,m2);cout.flush();cin>>d2;if(!d2)return;
    if(d1>=d2) l=m1;
    else r=m2;
  }
  int y=(l+r)/2;
  pr(x,y);cout.flush();cin>>r;if(!r)return;
  pr(x+1,y);cout.flush();cin>>r;if(!r)return;
  pr(x,y+1);cout.flush();cin>>r;if(!r)return;
  pr(x+1,y+1);cout.flush();cin>>r;if(!r)return;
}

int main(){ios::sync_with_stdio(0);cin.tie(0);Main();return 0;}