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: ['421', '99', '115', 'x']
Example Output: 1, 2, 4, 5, 9

Example Input: ['3', '181', 'o', '425', 'f', '391']
Example Output: 1, 2, 3, 4, 5, 8, 9

Example Input: ['t', 'r', '373', '361', '145', '387']
Example Output:
1, 3, 4, 5, 6, 7, 8