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: ['165', 'k', 'a', 'v', 'u', '61', '327']

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


Question: ['233', '35', 'l', 'j', '89', 'r', 't']

Answer: 2, 3, 5, 8, 9


Question: ['473', '287', '359', '147', '21', '33', 'j', 'p', '441', 'o', 'y', 'h', 'c', '97']

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