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: ['287', 'y', 'b', '79', '39', 'l']

Answer: 2, 3, 7, 8, 9


Question: ['43', 'f', '449', 't', 'z', 'q', '259', 's', 'n', 'h', '123', 'z']

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


Question: ['181', 'x', '457', '153', '187', 'm', 'f', '129', 'n', '465', '291', 'p']

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