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: ['243', 't', '249', 'q', '459', '469', '301', 'j', '215', '21']

Answer: 0, 1, 2, 3, 4, 5, 6, 9


Question: ['e', 's', '271', 'k', 'e', 'y', '89']

Answer: 1, 2, 7, 8, 9


Question: ['r', 'g', '355']

Answer:
3, 5