#include <bits/stdc++.h>
using namespace std;
template <class T, class U>
bool chmin(T& a, const U& b) {
  if (a <= b) return false;
  a = b;
  return true;
}
template <class T, class U>
bool chmax(T& a, const U& b) {
  if (a >= b) return false;
  a = b;
  return true;
}
string Main(int A, string S) { return (A < 3200) ? "Red" : S; }
int main(void) {
  int A;
  cin >> A;
  string S;
  cin >> S;
  cout << Main(A, S) << endl;
  return 0;
}
