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