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: ['f', '367', 'w', '227', '201', 'n', '213', '11']

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


Question: ['p', '103', 'd', '411', 'f']

Answer: 0, 1, 3, 4


Question: ['l', 'n', '477', '227', '71', 'p', 'q', '277', '135', 'i']

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