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: ['v', 't', '81', '223', 'b', 'b', '313', '151', '63']

Answer: 1, 2, 3, 5, 6, 8


Question: ['377', 'z', '421', '137', 't', 'v', 's', 'l']

Answer: 1, 2, 3, 4, 7


Question: ['101', 'b', 't', 'i', '265', '45', '11', '487', 'm', 'h', 'd', 'e', 'x', 'l']

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