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: ['437', 'e', 'b', 'f', '203', 't', '5', '461', 'e', '367', '391', '81']

Answer: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9


Question: ['h', '309', 'q', 'w', '367', '245', '181', 'w', '377', '33']

Answer: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9


Question: ['119', '241']

Answer:
1, 2, 4, 9