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: ['141', 'm', '139', '197', '321', '265', 'p']

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


Question: ['353', '195', '297', '175', 'u', 'p', 'r', 'l']

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


Question: ['m', '493', '75', '123', 'm']

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


