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: ['431', '245', '23', 'c', '185', 'k', '155', '163', 'e', '35', 'r', '175', '163']

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


Question: ['289', 'f', 'y', 'n', '271', '223', 'v', 'p', 'v', 'w', '7', 'i', '195']

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


Question: ['1', 'm']

Answer:
1