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