#include <iostream>
#include <cstdlib>
#include <vector>
#include <algorithm>
#include <string>
#include <cmath>
#include <new>

using namespace std;

int main(){
    int a;
    string s;

    cin >> a;
    cin >> s;

    if(a < 3200){
        cout << "red" << endl;
    }else{
        cout << s <<endl;
    
	return 0;
}