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: ['93', '277', '373', 'z', '9', 'r', '251', '207', 'v', 'n']

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


Question: ['159', '3', 'f', 'k', 'o', 'm']

Answer: 1, 3, 5, 9


Question: ['z', 'p', 'r', 'w', '493', 'c', 'h', '23', 's', '363', 'a', '151', '321', 't', '345']

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