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:
['v', 'r', '67', '49']

Ex Output:
4, 6, 7, 9


Ex Input:
['k', '217']

Ex Output:
1, 2, 7


Ex Input:
['r', 'm', 'l', '495', '481', '383', '37', '287', 'b', 'l', '145', 'c', 'v', 'u']

Ex Output:

1, 2, 3, 4, 5, 7, 8, 9