#include <bits/stdc++.h>
using namespace std;
int main() {
  int a;
  cin >> a;
  string s;
  if (a > 3200) cout << s;
  if (a < 3200) cout << "red";
  if (a == 3200)
    cout << "pink";
  else if (a == 3200)
    cout << "red";
}
