#include <bits/stdc++.h>
using namespace std;
using ll = long long;
template <class T>
inline bool chmin(T& a, T b) {
  if (a > b) {
    a = b;
    return 1;
  }
  return 0;
}
template <class T>
inline bool chmax(T& a, T b) {
  if (a < b) {
    a = b;
    return 1;
  }
  return 0;
}
void solve(void) {
  int a;
  string S;
  cin >> a >> S;
  if (a >= 3200) {
    cout << S << endl;
  } else {
    cout << "Red" << endl;
  }
  return;
}
int main(int argc, const char* argv[]) {
  cin.tie(0);
  ios::sync_with_stdio(false);
  solve();
  return 0;
}
