#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
const ll MOD = 1e9+7;

int a;
string s;

int main()
{
    ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
    cin>>a>>s;
    if(a>=3200)cout<<S;
    else cout<<"red";



    return 0;
}
