#include <bits/stdc++.h>
using namespace std;
#pragma GCC optimize("Ofast")
int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  cout.tie(0);
  clock_t clk = clock();
  int a;
  string s;
  cin >> a;
  cin >> s;
  cout << ((a < 3200) ? "Red" : s) << endl;
  cerr << endl
       << setprecision(10) << fixed << (double)(clock() - clk) / CLOCKS_PER_SEC;
  return 0;
}
