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: ['243', '1', 'j', 'e', '171', 'k', '177', '85', '367', 's', 't', '107', 'z', '283', '15']

Answer: 0, 1, 2, 3, 4, 5, 6, 7, 8


Question: ['395', 'p', '373']

Answer: 3, 5, 7, 9


Question: ['471', 'c', 'c', 'e', 'k', '99', 'n', '401', '1', 'w']

Answer:
0, 1, 4, 7, 9