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: ['y', 'v', '311', 'f', '273']

Answer: 1, 2, 3, 7


Question: ['p', '121', '55', '205', 'n', '393', 'l', 's', 'k', 'c', 'n']

Answer: 0, 1, 2, 3, 5, 9


Question: ['277', 'c', 'f', '243', '373', '119', '469', 'l', 'z', '113', '441', '445']

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