input: Write a python function to return the element-wise product of two lists.
  assert productOfLists([1, 2, 3], [3, 4, 5]) == [3, 8, 15]
  assert productOfLists([1, 2], [3, 4, 5]) == [3, 8]
  assert productOfLists([2, 3, 4], [5, 6, 7]) == [10, 18, 28]
output: def productOfLists(list1, list2):
      return [a * b for a, b in zip(list1, list2)]