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: ['u', '419', 'u', 'h', 'k', 'w', 'a', '289', 'd', 'v', 'u', '117', '327', '85', '441']

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


Question: ['b', 'r', 'n', '89', '379', '283', '27', 's', '361', 'm', 'l']

Answer: 1, 2, 3, 6, 7, 8, 9


Question: ['409', '281', 'm', 'j', '453', 'o', 't', 'i', 'x', 'p', '423']

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


