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: ['b', 'g', '181', 'y', 'd', 'v', '95', 'h', 'n', '103', '41', 'm', 'h', '445', 'z']

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


Question: ['279', 'y', '391', '33', '281', '113', 'd', 'v']

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


Question: ['b', 't', 'd', '443', '29', '153', '319', 'y', '177', '103', '61']

Answer:
0, 1, 2, 3, 4, 5, 6, 7, 9