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: ['381', '357', 'w', 'r', '115', 'z', '389', 'p', 'p', '101', '229']

Answer: 0, 1, 2, 3, 5, 7, 8, 9


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

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


Question: ['435', 'b']

Answer:
3, 4, 5