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:
['k', '135', '297']

Ex Output:
1, 2, 3, 5, 7, 9


Ex Input:
['x', '325', 'i', 'n', 'i', 'w', 't']

Ex Output:
2, 3, 5


Ex Input:
['n', 'w', '139', 'k', 'n', '23', '451', 'l', '79', 'e', 'v', 'k', 'd']

Ex Output:

1, 2, 3, 4, 5, 7, 9