/**
	������������ Author : Avi J Patel ������������
	������������ University : DA-IICT ������������
**/
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define ld long double
#define pb push_back
#define pf push_front
#define mp make_pair 
#define mt make_tuple
#define N 100000
#define ff first
#define ss second
#define si size()
#define MOD 1000000007
#define Mod 998244353
#define N 1000005
#define large 10000000000000001

#define For(i,m,n) for(long long i=m;i<n;i++)
#define st(x) sort(x.begin(),x.end())
#define re(x,i) reverse(x.begin()+i,x.end())
#define FAST ios_base::sync_with_stdio(false),cin.tie(0),cout.tie(0);srand(time(NULL));
/*
bool sortbysec(const pair<int,int> &a, 
              const pair<int,int> &b) 
{ 
    return (a.second < b.second); 
}*/ 
int main()
{
	int n;
	cin>>n;
	string s;
	cin>>s;
	if(a>=3200) cout<<s;
	else cout<<"red";
	return 0;
}





