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', '343', '149', 'h', 'w', 'j', 'd', 'r', '461', 'q', '265', '329', '499', 'r', '291']

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


Question: ['q', 'g', 'z', '309']

Answer: 0, 3, 9


Question: ['h', 'w', 'm', 'o', 'l', 'j', 'w', 'k', 'n', '489', 'r']

Answer:
4, 8, 9