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', '259', 'r', '363', '149', 's', 'p', 'l', '271', '93', '205', 's', 'r', 'v', 'z']

Answer: 0, 1, 2, 3, 4, 5, 6, 7, 9


Question: ['51', '461', '343', '15', '209', '51']

Answer: 0, 1, 2, 3, 4, 5, 6, 9


Question: ['173', 'u', 'o', '21', '161', '241', '71', '117', 'n']

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