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: ['h', '281', 'x', '471']

Answer: 1, 2, 4, 7, 8


Question: ['363', 'u', '179', 'e', '279', 'a', '151', '173', 'e', '61', '213']

Answer: 1, 2, 3, 5, 6, 7, 9


Question: ['369', 'q', '195', '285', '85', 'i', '283', 'd', 'u', 'p', 'n']

Answer:
1, 2, 3, 5, 6, 8, 9