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: ['o', '105', '409', '287', '9', '377', 'h', 'v', 'i', 'j', 'm', '59', 's', '357']

Answer: 0, 1, 2, 3, 4, 5, 7, 8, 9


Question: ['447', '77', '337', 'i', '257', '477', 'l', 'm', '357', 'k', '293', '425', 's']

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


Question: ['a', 'v']

Answer:
-1