input: Write a python function to autocomplete a given input text and return the top 5 suggestions.
  assert autocomplete("py") == ['python', 'pyramid', 'pycharm', 'pytest', 'pythonic']
  assert autocomplete("ja") == ['java', 'javascript', 'jargon', 'jasmine', 'jaguar']
  assert autocomplete("rea") == ['react', 'realize', 'reality', 'reactive', 'reader']
output: def autocomplete(input_text):
      suggestions = [
          'python', 'pyramid', 'pycharm', 'pytest', 'pythonic', 
          'java', 'javascript', 'jargon', 'jasmine', 'jaguar', 
          'react', 'realize', 'reality', 'reactive', 'reader', 
          'ruby', 'rust', 'rails', 'rain', 'random'
      ]
      return sorted([s for s in suggestions if s.startswith(input_text)])[:5]