input: Write a function to determine if the input string contains the word "Hello". If it contains the word "Hello", return True; otherwise, return False. If the input string is empty, return False.
  
  def check_hello(s: str) -> bool:
      return 'Hello' in s
  
  assert check_hello("HelloWorld") == True
  assert check_hello("GoodbyeHello") == True
  assert check_hello("Hi there") == False
  assert check_hello("") == False
output: def check_hello(s: str) -> bool:
      return 'Hello' in s