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:
['345', '393', 'v', 'l', 'b', 'd', 'k', 'q', 'x']

Ex Output:
3, 4, 5, 9


Ex Input:
['d', '25', '323', 'k', 'e']

Ex Output:
2, 3, 5


Ex Input:
['w', 'g', '99', 'r']

Ex Output:

9