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: ['469', 'y', 'j', 'u', '475', 'k', 'k']
Example Output: 4, 5, 6, 7, 9

Example Input: ['t', 'r', 'z']
Example Output: -1

Example Input: ['431', '343', '247']
Example Output:
1, 2, 3, 4, 7