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: ['j', 'v', 'q', '393', 'z', 'l', 'g', 'q', '193']

Answer: 1, 3, 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: ['23', '37', '255', '305', '351', 'l', '489']

Answer:
0, 1, 2, 3, 4, 5, 7, 8, 9