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: ['353', 'k', 'j', '1', '375', 'e', 'd']

Answer: 1, 3, 5, 7


Question: ['l', '201', 's', 'y', 'b', '395', '19']

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


Question: ['c', '161', '149', 'e', 'f', '391', '467']

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