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: ['d', '71', '65', '177', 'k']

Answer: 1, 5, 6, 7


Question: ['59', '437', '145', '165', '217', 'l', '185', '495', 'z']

Answer: 1, 2, 3, 4, 5, 6, 7, 8, 9


Question: ['k', '303', 't']

Answer:
0, 3