    #include <bits/stdc++.h>
    using namespace std;
    #define el "\n"
    #define ll long long
    #define ull unsigned long long long
    #define pb push_back
    #define mp make_pair
    #define X first
    #define Y second
    #define M 1000000007
    #define all(v) v.begin(), v.end()
    int main() {
      ios_base::sync_with_stdio(false);
      cin.tie(NULL);
      ll a;
      cin>>a;
      string s;
      cin>>s;
      if(a<3200)cout<<"red"<el;
      else cout<<s<<el;
      return 0;
    }
