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: ['s', 'y', '133', 'c', '415', 'p']

Answer: 1, 3, 4, 5


Question: ['287', 'y', 'b', '79', '39', 'l']

Answer: 2, 3, 7, 8, 9


Question: ['125', 'v', '315', '435', 'e', 'e', 'i']

Answer:
1, 2, 3, 4, 5