#include <bits/stdc++.h>
using namespace std;
void split(string &s, vector<string> &v, string &sep) {
  int current, previous = 0;
  current = s.find_first_of(sep);
  while (current != string::npos) {
    v.push_back(s.substr(previous, current - previous));
    previous = current + 1;
    current = s.find_first_of(sep, previous);
  }
  v.push_back(s.substr(previous, current - previous));
}
int main() {
  int n, flag = 0;
  cin >> n;
  for (int i = 0; i < n; i++) {
    int temp;
    cin >> temp;
    if (temp) {
      flag = 1;
    }
  }
  if (flag) {
    cout << "HARD";
    cout << endl;
  } else {
    cout << "EASY";
    cout << endl;
  }
  return 0;
}
