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: ['s', '45']

Answer: 4, 5


Question: ['233', '189', '217', 's', '221', 'v', 'c', 'x', '455']

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


Question: ['167', '489', '451', 'u', '403', 'w', 'p', '89', '51', '39', 's', '195', '449', '413']

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