#include <bits/stdc++.h>

using namespace std;

#define pb push_back
#define F first
#define S second
#define INF ll(1e18)
#define MOD 1000000007

typedef long long ll;
typedef pair<ll,ll> ii;
typedef vector<ll> vi;
typedef long double ld;

int main(){
	ios_base::sync_with_stdio(0); cin.tie(0);
    int a,string b;cin>>a>>b;
    if(a<3200){cout<<"red";}
    else{cout<<b;}
}
