#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using vi = vector<int>;
using vvi = vector<vi>;
int main() {
  int a;
  string s;
  cin >> a >> s;
  if (3200 <= a) {
    cout << s << endl;
  } else
    cout << "Red" << endl;
}
