input: 
  def combine_list(array1, array2):
      """Combines the elements of two lists into a list of tuples.
      Example:
      >>> combine_list([1, 2, 3], [4, 5, 6])
      [(1, 4), (2, 5), (3, 6)]
      """
      return list(zip(array1, array2))
  
output:     if len(array1) != len(array2):
          raise ValueError("Both lists must have the same length")