#include<bits/stdc++.h>
using namespace std;
#include<ext/pb_ds/assoc_container.hpp>
#include<ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;

template <typename T>
using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;

const double PI = acos(-1.0);
const int N = 200005;
const int MOD = 1e9 + 7;
const int inf = 1<<28;
typedef long long ll;

double a[105];
int main()
{
    
  int a;
  cin>>a;
  string s;
  cin>>s;
  
  if(a < 3200)
    cout<<s;
  else
    cout<<"red";

   	
}
