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: ['q', 'a', '149']

Answer: 1, 4, 9


Question: ['p', '45', 'z', '85', 'k', 'e', '191', '265', '261', 'w', 'l', '263', 'w']

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


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

Answer:
1, 2, 3, 7