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: ['z', 'c', 'n', '351', 'f', '239', '71', '351', 'b', '1', '321', 'h', '163']

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


Question: ['h', 'l', '43', 'b', 'g', '265', '355', 'y']

Answer: 2, 3, 4, 5, 6


Question: ['m', 'p', '95', 'j', '337', '175', 'l', '207', 'i', '141', '101']

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