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: ['85', '53', '43', 'j', 'e', '443', '231', 'z', 'f', 'v', '235', '377']

Answer: 1, 2, 3, 4, 5, 7, 8


Question: ['d', '147', '213', 'e', '251', '77', 'm', 'x']

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