#include <algorithm>
#include <iostream>
#include <numeric>
#include <string>
#include <unordered_map>
#include <vector>

using namespace std;
using ll = long long;

constexpr static ll MOD = 1000000007ll;
constexpr static int INF = 1 << 28; // for x <= 10^9
constexpr static ll INFL = 1ll << 60; // for x <= 10^19

int getMin(h, w) {

}

int main() {
    int a;
    string s;
    cin >>a>>s;
    string ans = (a >= 3200) ? s:"red";
    cout <<ans;
}
