1. #include <bits/stdc++.h>
   #define rep(i,n) for (int i = 0; i < (n); ++i)
2. using namespace std;
   typedef Long Long 11;
3.  
4. int main() {
  	int a;
  	string s;
  	cin >> a >> s;
  	if (a >= 3200) cout << s << endl;
  	else cout << "red" << endl;
5.   return 0;
6. }