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: ['477', '293', '301', '269', '149', 'm']

Answer: 0, 1, 2, 3, 4, 6, 7, 9


Question: ['a', '55', 's', '71', '271', '211']

Answer: 1, 2, 5, 7


Question: ['179', '367', '223', '77', '323', 'l', '55', 'a', 'a', 'q', '321', '321', '443']

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