/*
 *Author - Bhanu Pratap
 */
#include <bits/stdc++.h>
#define endl '\n'
#define all(c) c.begin(), c.end()
 
using namespace std;
 
typedef long long int ll;
typedef long double ld;
 
const ll mod = 1e9 + 7;
const ld PI = 3.141592653589793;

void solve () {
	int n;
	string s;
	cin>>n>>s;
	if (a>=3200) cout<<s;
	else cout<<"red";
}
main(){
    ios_base::sync_with_stdio(false); cin.tie(0);
    
    solve();
    return 0;
    }
