input: Write a python function to repeatedly print "Hello World" until the user inputs something other than "repeat".
  assert repeat_hello(['repeat', 'repeat', 'stop']) == ["Hello World", "Hello World"]
  assert repeat_hello(['repeat', 'stop']) == ["Hello World"]
  assert repeat_hello(['stop']) == []
output: def repeat_hello(inputs):
      result = []
      for command in inputs:
          if command == 'repeat':
              result.append("Hello World")
          else:
              break
      return result