#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  cin >> n;
  int a[n];
  int cnt = 0;
  for (int i = 0; i < n; i++) {
    cin >> a[i];
  }
  for (int i = 0; i < n; i++) {
    if (a[i] == 1) {
      cnt++;
    }
  }
  if (cnt > 0) {
    cout << "HARD" << endl;
  } else
    cout << "EASY" << endl;
}
