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:
['349', '327', 'c', 'a', '493', 'a', 'm', '337', '397', '213', '203', '139']

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


Ex Input:
['487', '355', 'm', 's', '367', 'n', '203', 'x', 't', 'v', 'd', '251']

Ex Output:
0, 1, 2, 3, 4, 5, 6, 7, 8


Ex Input:
['b', '453', '25', '391', '201', 'd', '273', 'k', '169']

Ex Output:

0, 1, 2, 3, 4, 5, 6, 7, 9