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:
['437', '377']

Ex Output:
3, 4, 7


Ex Input:
['n', 'm', 'u', '267']

Ex Output:
2, 6, 7


Ex Input:
['431', '245', '23', 'c', '185', 'k', '155', '163', 'e', '35', 'r', '175', '163']

Ex Output:

1, 2, 3, 4, 5, 6, 7, 8