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: ['109', 'b']

Answer: 0, 1, 9


Question: ['403', 'j', 'x', '187', '311', 'g', 'z', 'p', '287', 'w', 'k', 'm']

Answer: 0, 1, 2, 3, 4, 7, 8


Question: ['51', 'j', '323', 'y', 'z', '153', 'z', 'a', 'r', 'u', '277', '49']

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