1. #include <bits/stdc++.h>
2. using namespace std;
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. }