#include <ext/rope>
#include <bits/stdc++.h>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/assoc_container.hpp>
using namespace std;
using namespace __gnu_cxx;
using namespace __gnu_pbds;

template<class T> using ordered_set = tree<T, null_type, less<T>, rb_tree_tag,tree_order_statistics_node_update>;

#define ll long long
#define ull unsigned long long

int main()
{
    ios::sync_with_stdio(0) , cin.tie(0) , cout.tie(0);

    int n;
    string s;
    cin >> n >> s;

    (n > 3200) ? cout << s : cout << "red";

    return 0;
}
