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: ['e', 's', '271', 'k', 'e', 'y', '89']

Answer: 1, 2, 7, 8, 9


Question: ['459', 'd', '473', 'i', 'l', 's']

Answer: 3, 4, 5, 7, 9


Question: ['215', 's', 'z']

Answer:
1, 2, 5