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: ['205', '347', '423', 'm', '363', 'u', 'g']

Answer: 0, 2, 3, 4, 5, 6, 7


Question: ['299', '371', '313', '17', 't', 'q']

Answer: 1, 2, 3, 7, 9


Question: ['o', '95', 'h', '361', '61', 'l', 'd', '83', '357', '455', '35', '423', 'o']

Answer:
1, 2, 3, 4, 5, 6, 7, 8, 9