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: ['169', '159', '103', '245', '449', 'a', 'w', 'b', '131', '385']

Answer: 0, 1, 2, 3, 4, 5, 6, 8, 9


Question: ['99', '245', 'c', '435', '255', 'v']

Answer: 2, 3, 4, 5, 9


Question: ['115', '483', 'f']

Answer:
1, 3, 4, 5, 8