#include<bits/stdc++.h>
using namespace std;
#define rep(i,a,b) for(int i=a;i<b;i++)


#define MAX 1000000000
//-----------------------------------------------------------------
int query(int x, int y) {
    cout << x << " " << y << endl;
    int d; cin >> d;
    return d;
}
//-----------------------------------------------------------------
int main() {
    int a = query(0, 0); // y = -x + a
    if (a == 0) return 0;
    int b = query(MAX, 0); // y = x + (b - MAX)
    if (b == 0) return 0;

    int x = (a - b + MAX) / 2;
    int y = (a + b - MAX) / 2;
    query(x, y);
}