#include<stdio.h>
#include<cstdlib>
#include<iostream>
#include<string>

using namespace std;

int main{
    int a;
    cin >> a;
    string s;
    cin >> s;
    if( a<3200 ){
        cout<<"red"<<endl;
    }
    else{
        cout<<s<<endl;
    }
  
  return 0;
}