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:
['339', '473', '485']

Ex Output:
3, 4, 5, 7, 8, 9


Ex Input:
['229', 'x', '49', 'p', '73', '77', '337', '497']

Ex Output:
2, 3, 4, 7, 9


Ex Input:
['a', '337']

Ex Output:

3, 7