Sumar polinomios

def suma_pol(list1, list2):

  if len(list1) > len(list2):
    i = len(list2)
    max_i = len(list1)
    result = [0] * len(list1)
  else:
    i = len(list1)
    max_i = len(list2)
    result = [0] * len(list2)

  while i < max_i:
    result[i] = list2[i]
    i += 1

  i = 0

  while i < len(list1):
    result[i] += list1[i]
    i += 1

  return result