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: ['t', 'r', 'z']

Answer: -1


Question: ['459', 'd', '473', 'i', 'l', 's']

Answer: 3, 4, 5, 7, 9


Question: ['227', '45', 'z', '135', '11', 's']

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