#include<bits/stdc++.h>
using namespace std;
int main()
{
    char s[12];
    int a;
    cin>>a>>s;
    if(a>3200)
        cout<<s<<endl;
    else if(a<3200)
        cout<<"red"<<endl;
    else if(a==3200)
        cout<<s<<end;

    else
        cout<<"red"<<endl;
}
