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: ['t', '103', '349', '203', 'b', 'z', 'i', '337', 'y', '137', '77', 'p', 'k']
Example Output: 0, 1, 2, 3, 4, 7, 9

Example Input: ['s', '45']
Example Output: 4, 5

Example Input: ['q', 'a', '95', '251']
Example Output:
1, 2, 5, 9