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: ['159', '3', 'f', 'k', 'o', 'm']

Answer: 1, 3, 5, 9


Question: ['105', 'u', '465', 'b', '59', 'd', 'w', 'r', '233', 'v', '197', '189', '329']

Answer: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9


Question: ['1', 'x', '435', 'j', 'h', 'u', 'm', '287', '443', '81', '315']

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


