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: ['479', '381', '61', '307', 'w', 'd', '493', 'q', 'h', '373', '217', 't', '57', 'j']

Answer: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9


Question: ['73', '215', '389', '381', 'e', 'v', 'j', 'l', 'r']

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


Question: ['i', 'c', '293', 'p', '129', 'x', '75', 'e', '367', '123']

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