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.

Example Input: ['157', '481', 'n', 't', 'd', 'j']
Example Output: 1, 4, 5, 7, 8

Example Input: ['h', '281', 'x', '471']
Example Output: 1, 2, 4, 7, 8

Example Input: ['u', 'm', 'n', 'h', 'u']
Example Output:
-1