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: ['93', 'h', 'd', 'z', '395', 'r', 'j', 'f', '323', '215', 'n', 's', '497']

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


Question: ['229', '369', 'c', '7', 'f', 'h', '455', 't', '249', 's']

Answer: 2, 3, 4, 5, 6, 7, 9


Question: ['101', '257', 'p', '391']

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