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: ['n', 'q', 'z', 'r', '41', '345', '115', '487', '273', 'q', '219', 'i', '23']

Answer: 1, 2, 3, 4, 5, 7, 8, 9


Question: ['s', '45']

Answer: 4, 5


Question: ['t', 'x', 'q', 'z', 'q', '247', '169', 'l', 'u', '135', '167', 'b', 'h']

Answer:
1, 2, 3, 4, 5, 6, 7, 9