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: ['p', 't', '211', 'r', '439', 'h', 'g', 'c', '299', '371']
Example Output: 1, 2, 3, 4, 7, 9

Example Input: ['215', '391', '251', '177']
Example Output: 1, 2, 3, 5, 7, 9

Example Input: ['127', 'x']
Example Output:
1, 2, 7