#include <iostream>
#include <string>

using namespace std;

int main() {
   int x = 0, y = 199;
   string a;

   while (true) {
      cout << x << " " << y << endl;
      string a;
      cin >> a;
      if (a[0] == '-')
         ++x;
      else
         --y;
   }
   return 0;
}