#include <bits/stdc++.h>
using namespace std;
#define watch(x) cout << (#x) << " is " << (x) << endl
#define fast                          \
	ios_base::sync_with_stdio(false); \
	cin.tie(NULL);
#define openfile freopen("input.txt", "r" ,stdin); freopen("output.txt", "w", stdout); 
#define FOR(n) for(int i(0);i<n;++i)
#define ASC(i,a,b) for(int i(a); i <=b; ++i)
#define DESC(i,a,b) for(int i(a);i>=b;i--)
#define WL(t) while(t--)
#define SZ(a) int((a).size())
#define PB push_back
#define MP make_pair
#define FF first
#define SS second
#define BB begin()
#define EE end()
#define all(c) c.BB, c.EE
#define present(container, element) (container.find(element) != container.end())
// ^^for set,map etc
#define cpresent(container, element) (find(all(container), element) != container.end())
// for vector,array etc
#define tr(container, it) for (auto it = container.begin(); it != container.end(); it++)
#define gcd(a, b) __gcd((a), (b))
#define lcm(a, b) ((a) * (b)) / gcd((a), (b))
typedef long long LL;
typedef long double LD;
typedef vector<int> vi;
typedef vector<LL> vl;
typedef map<char,int> mci;
typedef pair<int, int> pii;
typedef map<int,pii> ipii;
const float INF = numeric_limits<float>::infinity();
const int MOD = 1e9 + 7;
const double PI = 3.14159265358979323846264338;
const LL big=998244353;

#ifdef _DEBUG
freopen(input.txt,"r",stdin);
freopen(output.txt,"w",stdout);
#endif

int main(){
	int n;
	string s;
	cin >> n >> s;
	if(a<3200) cout << "red";
	else cout << s;
}