#ifndef _GLIBCXX_NO_ASSERT
#include <cassert>
#endif
#include <cctype>
#include <cerrno>
#include <cfloat>
#include <ciso646>
#include <climits>
#include <clocale>
#include <cmath>
#include <csetjmp>
#include <csignal>
#include <cstdarg>
#include <cstddef>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <ctime>
#include <cwchar>
#include <cwctype>
 
#if __cplusplus >= 201103L
#include <ccomplex>
#include <cfenv>
#include <cinttypes>
#include <cstdalign>
#include <cstdbool>
#include <cstdint>
#include <ctgmath>
#include <cuchar>
#endif

#include <algorithm>
#include <bitset>
#include <complex>
#include <deque>
#include <exception>
#include <fstream>
#include <functional>
#include <iomanip>
#include <ios>
#include <iosfwd>
#include <iostream>
#include <istream>
#include <iterator>
#include <limits>
#include <list>
#include <locale>
#include <map>
#include <memory>
#include <new>
#include <numeric>
#include <ostream>
#include <queue>
#include <set>
#include <sstream>
#include <stack>
#include <stdexcept>
#include <streambuf>
#include <string>
#include <typeinfo>
#include <utility>
#include <valarray>
#include <vector>

#if __cplusplus >= 201103L
#include <array>
#include <atomic>
#include <chrono>
#include <codecvt>
#include <condition_variable>
#include <forward_list>
#include <future>
#include <initializer_list>
#include <mutex>
#include <random>
#include <ratio>
#include <regex>
#include <scoped_allocator>
#include <system_error>
#include <thread>
#include <tuple>
#include <typeindex>
#include <type_traits>
#include <unordered_map>
#include <unordered_set>
#endif

#if __cplusplus >= 201402L
#include <shared_mutex>
#endif

#if __cplusplus >= 201703L
#include <any>
#include <charconv>
// #include <execution>
#include <filesystem>
#include <optional>
#include <memory_resource>
#include <string_view>
#include <variant>
#endif

#if __cplusplus > 201703L
#include <bit>
// #include <compare>
// #include <span>
// #include <syncstream>
#include <version>
#endif

using namespace std;

using ll = int64_t;

/// <summary>
/// 単純なcoutの時に使う
/// </summary>
#define co(a) cout<<a<<"\n"


/// <summary>
/// [beg, end)の範囲を，添え字indexでループするfor文に置換します
/// </summary>
#define rep(i,a) for(ll i=0; i<a; ++i)
#define reps(i, a, b) for(ll i = a; i < b; ++i)

/// <summary>
/// 迷路等で使う方向のベクトル
/// </summary>
const vector<ll> dx = { 0, 1, 0, -1 }, dy = { 1, 0, -1, 0 };

/// <summary>
/// デバッグ時に使う
/// </summary>
#define DEBUG(x)     std::cout << #x << " : " << x << "\n"

///////////////////////////////////////////////////////////////////////////

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

	ll a;
	string s;
	cin >> a >> s;

	if (a >= 3200) {
		cout << s << endl;
	}
	else {
		cout << "red" << endl;
	}
}

