#include <bits/stdc++.h>
using namespace std;
using uint = unsigned int;
using ll = long long;
using ull = unsigned long long;
int main() {
  int a;
  string s;
  cin >> a >> s;
  if (a >= 3200) {
    cout << "pink";
  } else {
    cout << "red";
  }
  return 0;
}
