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:
['215', '391', '251', '177']

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


Ex Input:
['c', 'h', '151', 'g', 'd', 'd', 'k', '37']

Ex Output:
1, 3, 5, 7


Ex Input:
['r', '273', '129', 'l', '115', 'g', '309']

Ex Output:

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