#include <bits/stdc++.h>
using namespace std;

int main() {
    cout << 0 << " " << 0 << endl;
    int k;
    cin >> k;
    cout << k / 2 << " " << (k + 1) / 2 << endl;

    int t;
    cin >> t;
    assert(t % 2 == 0);
    t /= 2;
    cout << k / 2 - t << " " << (k + 1) / 2 + t << endl;
    cin >> k;
    if (!k) return 0;
    cout << k / 2 + t << " " << (k + 1) / 2 - t << endl;
    cin >> k;
    return k;
}