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.
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Question: ['117', '247', '49', '63']

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


Question: ['r', 'o', 'n', '219', 'a', '419', 'x', '261', 'h', 's', '373', '155', 's', '171']

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


Question: ['311', '403', 't', '459', '185', '369', 'd', '489', 'v', '393', 'q', 'd', 'y', '405', 'z']

Answer:
0, 1, 3, 4, 5, 6, 8, 9