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