#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
ll a;
string s;
int main(){
	ios_base::sync_with_stdio(0);cin.tie(0);
	cin >> a;
	cin >> s;
	if (a >= 3200){
		cout << s;
		}else (
		cout << "red";
		)

}
