input: def sum_ints(*args):
      """ Sum any number of integer arguments.
      >>> sum_ints(3, 5, 7)
      15
      >>> sum_ints(10, 20, 30, 40)
      100
      >>> sum_ints(-1, -2, -3)
      -6
      """
      total = 0
      for num in args:
          total += num
      
      return total
output:     total = 0
      for num in args:
          total += num
      
      return total