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: ['339', '473', '485']
Example Output: 3, 4, 5, 7, 8, 9

Example Input: ['205', '347', '423', 'm', '363', 'u', 'g']
Example Output: 0, 2, 3, 4, 5, 6, 7

Example Input: ['u', '347']
Example Output:
3, 4, 7