#include <bits/stdc++.h>
#define optimizator ios_base::sync_with_stdio(0);
#define ll long long
#define str string
#define LOL unsigned long long int
using namespace std;
int main(){
	optimizator;
	int n;
	cin>>n;
	str a;
	cin>>a;
	if(n<=3200){
		cout<<a;
	}
	else{
		cout<<"red";2
	}
	
}