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: ['v', 'n', '303', '355', 'n', '205', '393', '239', '239', 'm', '123', '487']

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


Question: ['f', 'u', '349', '275', 'm', '41', '283', 'z', 'd', 'a', 'd', '319', '135']

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


Question: ['l', '447', 'y', '145', '425', '343']

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