#include <bits/stdc++.h>
#define int long long
#define rep(i,n) for(int i=0;i<n;++i)
#define all(a) a.begin(),a.end()
#define P pair<long long,long long>
#define double long double
using namespace std;
signed main(){
  int a;
  string b;
  cin>>a>>b;
  if(3200=<a)
    cout<<b;
  else
    cout<<"red";
}