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: ['143', 'i', '499', 't', '27']

Answer: 1, 2, 3, 4, 7, 9


Question: ['119', '189', 'k', 'e', '425', '21', '245']

Answer: 1, 2, 4, 5, 8, 9


Question: ['45', 'j', '443', '209', 'r', 'b']

Answer:
0, 2, 3, 4, 5, 9