input: def get_max_min(lst):
      min_value = lst[0]
      max_value = lst[0]
      
      for i in range(1, len(lst)):
          if lst[i] > max_value:
              max_value = lst[i]
          if lst[i] < min_value:
              min_value = lst[i]
      
      return (min_value, max_value)
  
      """
      Find the maximum and minimum values in a given list.
      
      >>> get_max_min([1, 2, 3, 4, 5])
      (1, 5)
      >>> get_max_min([10, 0, 20, -5, 30])
      (-5, 30)
      """
output:     """
      Find the maximum and minimum values in a given list.
      
      >>> get_max_min([1, 2, 3, 4, 5])
      (1, 5)
      >>> get_max_min([10, 0, 20, -5, 30])
      (-5, 30)
      """