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: ['451', '465', '461', '361', 'i', '379', '271', '103', '15', '419', '329', 'g', 'j', '171']

Answer: 0, 1, 2, 3, 4, 5, 6, 7, 9


Question: ['165', 'k', 'a', 'v', 'u', '61', '327']

Answer: 1, 2, 3, 5, 6, 7


Question: ['s', 'x', 'z', 'f', '391', 'b', 'u', 's', 'f', '351', 'u', 'i', '205']

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