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', '321', 'z']

Answer: 1, 2, 3


Question: ['171', 'h', '53', 'o', 'q']

Answer: 1, 3, 5, 7


Question: ['85', '121', '163']

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