#include <iostream>
#include <queue>
#include <cctype>
#include <cstring>
using namespace std;

int i, j, stj, sti, nr, si, sj, fi, fj, mi, mj, fn1i, fn1j, fn2i, fn2j;
bool found;
queue<int> coada;
int alt;
int main()
{
	si=0;
	sj=0;
	fi=199;
	fj=199;
	while(!found)
	{
		while(si<fi && sj<fj)
		{
			mi=(si+fi)/2;
			mj=(sj+fj)/2;
			cout<<mi<<" "<<mj<<"\n";
			cout.flush();
			cin>>alt;
			if(alt==0)
			{
				found=true;
				break;
			}
			if(alt>0)
			{
				cout<<mi-1<<" "<<mj-1<<"\n";
				cin>>alt;
				if(alt==0)
				{
					found=true;
					break;
				}
				if(alt<0)
				{
					fn1i=mi;
					fn1j=mj;
					fn2i=mi-1;
					fn2j=mj-1;
					break;
				}
				fi=mi-1;
				fj=mj-1;
			}
			if(alt<0)
			{
				cout<<mi+1<<" "<<mj+1<<"\n";
				cin>>alt;
				if(alt==0)
				{
					found=true;
					break;
				}
				if(alt>0)
				{
					fn1i=mi;
					fn1j=mj;
					fn2i=mi+1;
					fn2j=mj+1;
					break;
				}
				si=mi+1;
				sj=mj+1;
			}
		}
		if(!found)
		{
			//from fn1i, fn1j
			for(i=fn1i-1; i>=0; i--)
			{
				cout<<i<<" "<<fn1j<<"\n";
				cout.flush();
				cin>>alt;
				if(alt<0)
					break;
				if(alt==0)
				{
					found=true;
					break;
				}
			}
			if(found==true)
				break;
			for(i=fn1j-1; i>=0; i--)
			{
				cout<<fn1i<<" "<<i<<"\n";
				cout.flush();
				cin>>alt;
				if(alt<0)
					break;
				if(alt==0)
				{
					found=true;
					break;
				}
			}
			if(found==true)
				break;
			for(i=fn2i-1; i>=0; i--)
			{
				cout<<i<<" "<<fn2j<<"\n";
				cout.flush();
				cin>>alt;
				if(alt<0)
					break;
				if(alt==0)
				{
					found=true;
					break;
				}
			}
			if(found==true)
				break;
			for(i=fn2j-1; i>=0; i--)
			{
				cout<<fn2i<<" "<<i<<"\n";
				cout.flush();
				cin>>alt;
				if(alt<0)
					break;
				if(alt==0)
				{
					found=true;
					break;
				}
			}
			if(found==true)
				break;
		}
	}
}