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: ['39', '461', '163', '379', '331', '137', 'g', 'm']
Example Output: 1, 3, 4, 6, 7, 9

Example Input: ['a', 'n', '423', 'y', 'y', 'u', '55', 'y', '295', '73', 't', 'p']
Example Output: 2, 3, 4, 5, 7, 9

Example Input: ['157', '187', 'q', '191', 'b', '355', 'x', 'b', 's', '69', 'c']
Example Output:
1, 3, 5, 6, 7, 8, 9