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