#include<iostream>
#include <cstdlib>
using namespace std;

typedef struct Punct{
	int x, y, val;
};

int N=200;
int matsol[200][200];



Punct detDiag(Punct st, Punct dr)
{
	Punct mij;
	mij.x= (st.x+dr.x)/2;
	mij.y = (st.y + dr.y)/2;

	if(matsol[mij.x][mij.y] == 0)
	{
		cout<<mij.x<<' '<<mij.y<<endl;
		cout.flush();
		cin>>mij.val;
	}
	else
		mij.val = matsol[mij.x][mij.y];

	if(st.x == dr.x && st.y == dr.y)
		return mij;
	if(((mij.x+dr.x+1)/2 == mij.x && (mij.y+dr.y+1)/2 == mij.y) || ((mij.x+st.x)/2 == mij.x && (mij.y+st.y)/2 == mij.y))
		return mij;
	if(mij.val==0)
		return mij;
	if(mij.val<0)
	{
		mij.x++;
		mij.y++;
		return detDiag(mij, dr);
	}
	else
		return detDiag(st, mij);
}


Punct cautare(Punct st, Punct dt)
{
	Punct x;
	/*
	if(dt.x-st.x < dt.y-st.y)
	{
		Punct dts;
		dts.y=st.y+ dt.x-st.x;
		dts.x = dt.x;
		x = detDiag(st, dts);

	}
	else
		if(dt.x-st.x > dt.y-st.y)
		{
			Punct dts;
			dts.x=st.x+ dt.y-st.y;
			dts.y = dt.y;
			x = detDiag(st, dts);
		}
		else
		*/
	x = detDiag(st, dt);
	if(x.val==0)
		return x;
	if(x.x == st.x && x.y == st.y && x.val>0)
		return x;
	if(x.x == dt.x && x.y == dt.y && x.val<0)
		return x;
	Punct st1, st2, dr1, dr2;
	if(x.val <0)
	{
		x.x++;
		x.y++;
	}
	st1.x = st.x;
	st1.y = x.y;
	dr1.x = x.x - 1;
	dr1.y = dt.y;

	st2.x = x.x;
	st2.y = st.y;
	dr2.x = dt.x;
	dr2.y = x.y - 1;

	x = cautare (st1, dr1);
	if(x.val==0)
		return x;
	x = cautare(st2, dr2);
	return x;

}



int main(){
	Punct st, dr, x;
	st.x = st.y = 0;
	dr.x = dr.y = N-1;
	x=cautare(st, dr);
	return 0;
}