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