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: ['b', '329', 'm', 'q', 'k', 'z', 'k', '199', 'v', 'l']

Answer: 1, 2, 3, 9


Question: ['g', '109', 'm', '169', '443', 'm', '57', '285', 'x', '171', '367']

Answer: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9


Question: ['349', '205', '243', 'x', 'i', '25', '21']

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