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: ['475', 'd', '467', 'h', 'r', 'r', '139', '307', '141', 'f']

Answer: 0, 1, 3, 4, 5, 6, 7, 9


Question: ['e', '307', '191', 'k', 'o', 'j', '99']

Answer: 0, 1, 3, 7, 9


Question: ['385', 'e', '497']

Answer:
3, 4, 5, 7, 8, 9