#include <iostream>
#include <iterator>
#include <limits>
#include <map>
#include <queue>
#include <set>
#include <string>
#include <utility>
#include <unordered_map>
#include <unordered_set>
using namespace std;
    
#define ABS(a) (((a) >= 0) ? (a) : -(a))
#define MAX(a, b) ((a) > (b) ? (a) : (b))
#define MIN(a, b) ((a) > (b) ? (b) : (a))
#define FOR(i, a, b) for (int i = (a); i <= (b); ++i)
#define RFOR(i, a, b) for (int i = (a); i >= (b); --i)
#define REP(i, n) for (int i = 0; i < (n); ++i)
#define POW_10_9 1000000000
#define INF (numeric_limits<int>::max()/2)
#define int long long
    
// typedef long long ll;
// typedef pair<int,int> Pair;
    

    
int main()
{
    int a;
    string s;
    cin >> a >> s;
    cout << ((a<3200) ? "red" : s) << endl;
    return 0;
}