#include <iostream>
#include <cstdio>
#include <stdio.h>
#include <algorithm>
#include <cstdlib>
#include <vector>
#include <set>
#include <map>
#include <string>
#include <queue>
#include <bitset>
#include <cmath>
#define ff first
#define ss second
#define MAXN 300005
#define INF 1000000001000000001LL
#define int long long

using namespace std;

const int mod = 998244353; //1000000007;
int n, a;
string s;

main(){
    //freopen("input.txt", "r", stdin);
    //freopen("output.txt", "w", stdout);
    ios_base :: sync_with_stdio(false);
    cin.tie();
    cin >> a;
    
    if(a < 32000)
        cout << "red";
    else
        cout << s;

    return 0;
}





