#include <bits/stdc++.h>
using namespace std;
int main() {
  int a;
  char s[10];
  cout << "enter a number greater than 2799 and less than 5000" << endl;
  cin >> a;
  cout << "enter string" << endl;
  cin >> s;
  if (a >= 2800 && a < 3200)
    cout << "red";
  else
    cout << s;
  return 0;
}
