input: Write a function to check if the given string contains the word "Hello". The function should return True if the string contains "Hello", otherwise it should return False. If the input string is empty, it should also return False.
  def check_hello(s):
      return 'Hello' in s
  assert check_hello("Hello, World!")==True
  assert check_hello("Hi there, Hello")==True
  assert check_hello("Hey, how are you?")==False
  assert check_hello("Goodbye, World!")==False
  assert check_hello("")==False
output: def check_hello(s):
      return 'Hello' in s