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:
['205', '107', 'z']

Ex Output:
0, 1, 2, 5, 7


Ex Input:
['489', 'y', 's', 'x', '203', 't', 'y', '461', 'v', 'k', '371', 'e']

Ex Output:
0, 1, 2, 3, 4, 6, 7, 8, 9


Ex Input:
['301', '291']

Ex Output:

0, 1, 2, 3, 9