#include <bits/stdc++.h>
#include <iostream>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
typedef long long int ll;
typedef vector<ll> vll;
typedef vector<ll> vvll;
#define sort(v) sort(v.begin(), v.end())
#define rev(r) reverse(r.begin(), r.end());
#define cout(cc) cout << cc << endl;
int main() {
  int a;
  string s;
  cin >> a >> s;
  if(a>=3200) cout(s);
  else if(a<3200) cout << "red" << endl;
}
