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:
['g', '411', '307', 'i', '483', 'z', '29', 't', 'f', 'z']

Ex Output:
0, 1, 2, 3, 4, 7, 8, 9


Ex Input:
['a', '491', '477', '193', 'b', 'l', 'c']

Ex Output:
1, 3, 4, 7, 9


Ex Input:
['v', 'u', 'a', 'x', 'o', '471', '407', 'y', 'n', 'k', 'h']

Ex Output:

0, 1, 4, 7