#include <bits/stdc++.h>
using namespace std;
int dx[] = {1, 0, -1, 0};
int dy[] = {0, 1, 0, -1};
int main() {
  int n;
  cin >> n;
  if (n >= 3200)
    cout << "red" << endl;
  else
    cout << "pink" << endl;
}
