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

typedef long long ll;
typedef vector<int> vi;
typedef pair<int,int> pi;
#define F first
#define S second
#define PB push_back
#define MP make_pair
#define Mod 1000000007
#define REP(i,a,b) for (int i = a; i <= b; i++)

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