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