#include <bits/stdc++.h>
#define ll long long 


using namespace std;

int main()
{
    ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
    
    int n;int >> n;
    string s;cin >> s;
    if(n<3200)return cout << "red",0;
    cout << s;
    
    return 0;
}
