input: Write a function to combine the elements of two lists into a list of tuples. If the input lists have different lengths, ignore the extra elements in the longer list.
  combine_list([1, 2, 3], [4, 5, 6])
  assert combine_list([1, 2, 3], [4, 5, 6])==[(1, 4), (2, 5), (3, 6)]
  assert combine_list([1, 2], [4, 5, 6])==[(1, 4), (2, 5)]
  assert combine_list([1, 2, 3], [4, 5])==[(1, 4), (2, 5)]
  assert combine_list([], [4, 5, 6])==[]
  assert combine_list([1, 2, 3], [])==[]
output: def combine_list(list1, list2):
      return [(list1[i], list2[i]) for i in range(min(len(list1), len(list2)))]