#include <bits/stdc++.h>

using namespace std;

int unimodalFunc(int mid)
{
  cout << mid << " " << 0 << endl;
  int Q;
  cin >> Q;
  return (Q);
}


int unimodalFunc2(int mid)
{
  cout << 0 << " " << mid << endl;
  int Q;
  cin >> Q;
  return (Q);
}


int findMaximal(int from, int to)
{
  for(; to - from > 1;) {
    int mid = (from + to) / 2;
    (unimodalFunc(mid) - unimodalFunc(mid - 1) < 0 ? from : to) = mid;
  }
  return from;
}

int findMaximal2(int from, int to)
{
  for(; to - from > 1;) {
    int mid = (from + to) / 2;
    (unimodalFunc2(mid) - unimodalFunc2(mid - 1) < 0 ? from : to) = mid;
  }
  return from;
}

int main()
{
  int get = findMaximal(0, 100001);
  int get2 = findMaximal2(0, 100001);
  cout << get << " " << get2 << endl;
}