#include <bits/stdc++.h>
using namespace std;
const double PI = acos(-1.0);
const double eps = 1e-6;
const int INF = 0x3f3f3f3f3f;
const int maxn = 1e5 + 500;
long long T, n, m;
int main() {
  string s;
  cin >> n >> s;
  if (n < 3200)
    cout << "RED\n";
  else
    cout << s << endl;
  return 0;
}
