#include<cstdio>
#include <iostream>
#include<algorithm>
#include<string>
#include<queue>
#include<vector>
#include<functional>
#include<cmath>
#include<map>
#include<stack>
#include<set>
#include<numeric>

using namespace std;
typedef long long ll;
typedef pair<int, int> Pr;

int solve(int x, int y) {
	int d;
	cout << x << " " << y << endl;
	cin >> d;
	if (d == 0) exit(0);
	return d;
}

int main()
{
	int A = solve(0,0);
	int B = solve(0, 1000000000);
	int x = (A + B - 1000000000) / 2;
	int y = A - x;
	solve(x, y);
	return	0;
}