input: def get_stats_for_string(string):
      num_elements = len(string)
      max_element = max(string)
      min_element = min(string)
      mean_element = sum(string) / num_elements
      return (max_element, min_element, mean_element)
  
  string = "abcdef"
  stats_for_string = get_stats_for_string(string)
  print("Max: {0}, Min: {1}, Mean: {2}".format(*stats_for_string))
output:     num_elements = len(string)
      max_element = max(string)
      min_element = min(string)
      mean_element = sum(string) / num_elements
      return (max_element, min_element, mean_element)