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

Answer: 3, 4, 5, 7, 9


Question: ['p', '121', '55', '205', 'n', '393', 'l', 's', 'k', 'c', 'n']

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


Question: ['j', 't', 'u', 'z', 'd', 'l', '177', '405']

Answer:
0, 1, 4, 5, 7