#include<iostream>
#include<stdio.h>

using namespace std; 

int fx(int d,int u){
	if (u==d){
		return u;
	}else{
		int m=(u+d)/2;
		int d1,u1;
		cout << m <<" "<<-1<< endl;
		cin >>d1;
		cout << m+1 <<" "<< -1 << endl;
		cin >>u1;
		if (d1<u1){
			return fx(d,m);
		}else{
			return fx(m+1,u);
		}
	}
}
int fy(int d,int u){
	if (u==d){
		return u;
	}else{
		int m=(u+d)/2;
		int d1,u1;
		cout << -1 << " " << m << endl;
		cin >>d1;
		cout << -1 << " " << m+1 << endl;
		cin >>u1;
		if (d1<u1){
			return fy(d,m);
		}else{
			return fy(m+1,u);
		}
	}
}

int main(){
  cout<<fx(0,100000)<<" "<<fy(0,100000)<<endl;
  return 0;
}