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: ['323', '243', '385', 'z', '345', 'v', '359', 'e', '215', '417', 'g', '445', '145', '413']

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


Question: ['t', 'v', '469', 'n']

Answer: 4, 6, 9


Question: ['l', '481', '87', '383', 'i', '315', '389', 'v', 'c']

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