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: ['x', '91', 'q', '417', '385', '455', '393', 'm', 's', 'c', '91', '71', 'n']

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


Question: ['s', 't', '189', 'j', 'r']

Answer: 1, 8, 9


Question: ['f', 'f', 'k', '29', '83', '365', 'k', '399']

Answer:
2, 3, 5, 6, 8, 9