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: ['217', '481', '87', 'w', 'q', 'c', 'j', '275', 'e', '49', '87', '25']

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


Question: ['243', '125']

Answer: 1, 2, 3, 4, 5


Question: ['1', 'x', '435', 'j', 'h', 'u', 'm', '287', '443', '81', '315']

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