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: ['213', '51', '31', 'n', '89', '113', '315', '195', 'd', 'x', '105', '217', '295']

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


Question: ['461', 'u', 't']

Answer: 1, 4, 6


Question: ['97', 'h', '469', 'z', 't']

Answer:
4, 6, 7, 9