#include <bits/stdc++.h>
#define st first
#define nd second
#define mp make_pair
#define pb push_back
#define sol (k+k)
#define sag (k+k+1)
#define orta (bas + (son-bas)/2)
#define coc g[node][i]
#define mod 1000000007
#define inf 1e18
#define N 1000005

using namespace std;
 
typedef long long ll;


int main()
{
    int a;
    string s;
    cin >> a;
    cin >> s;

    if (a !< 3200)
    {
    	cout << "red";
    } else cout<< s;
    

    return 0;
}
