input: 
  def sum_list(input_list):
      """This function takes a list as input and returns the sum of the items in the list.
      >>> sum_list([1, 2, 3, 4, 5])
      15
      >>> sum_list([10, 20, 30])
      60
      """
      sum = 0
      for i in input_list:
          sum += i
      return sum
  
output:     sum = 0
      for i in input_list:
          sum += i
      return sum