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: ['s', '45']

Answer: 4, 5


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

Answer: 0, 1, 3, 4


Question: ['l', 'o', '41', 'o', '81', '165', 'f', 'b', 'i', '243']

Answer:
1, 2, 3, 4, 5, 6, 8