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:
['247', 's', 'y', 'c', '421']

Ex Output:
1, 2, 4, 7


Ex Input:
['421', '99', '115', 'x']

Ex Output:
1, 2, 4, 5, 9


Ex Input:
['j', 'p', '443', '435']

Ex Output:

3, 4, 5