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: ['229', 'x', '49', 'p', '73', '77', '337', '497']
Example Output: 2, 3, 4, 7, 9

Example Input: ['u', '157', '63', '411', 'x', 'c', 'k', 'z', 'i', '279', '311', '431']
Example Output: 1, 2, 3, 4, 5, 6, 7, 9

Example Input: ['339', 'c', '497']
Example Output:
3, 4, 7, 9