#include <bits/stdc++.h>

using namespace std;

void solve() {
  int n;
  string s;
  cin >> n;
  cin >> s;
  puts(n < 3200 ? "red" : s);
}

int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  cout.tie(NULL);
  solve();
  return 0;
}
