#include <iostream>

using namespace std;

int main(){
	int meje[2][2] = {{0,200}, {0,200}};
	int v=100;
	int x, y;
	while(v != 0){
		x=(meje[0][0]+meje[0][1])/2;
		y=(meje[1][0]+meje[1][1])/2;
		cout<<x<<' '<<y<<'\n';
		cin>>v;
		if(v > 0){//je base bolj desno in bolj gor
			meje[0][0] = x+1;
			meje[0][1] = x+1+v;
			meje[1][0] = y+1;
			meje[1][1] = y+1+v;
		}
		else{
			meje[0][0] = x-1;
			meje[0][1] = x-1+v;
			meje[1][0] = y+1;
			meje[1][1] = y-1+v;
		}
	}
return 0;
}