In this task, you are given an input list A. You need to extract and sort the unique digits used in the list in ascending order. Return -1 if there is no digit in the list.

Ex Input:
['223', '71']

Ex Output:
1, 2, 3, 7


Ex Input:
['m', 'e', 'g']

Ex Output:
-1


Ex Input:
['407', 'o', '403']

Ex Output:

0, 3, 4, 7