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.
--------
Question: ['r', '495', '383', 'd', '369', '323', 'e', 'c', '149', 'q', '487', 'q', 'c']

Answer: 1, 2, 3, 4, 5, 6, 7, 8, 9


Question: ['109', 'b']

Answer: 0, 1, 9


Question: ['p', 'i', 'n', 'p', '121', 'v', 'h', 'p', 'q', 'x', '215', '403', 'q']

Answer:
0, 1, 2, 3, 4, 5