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: ['385', 'b', 'c']

Answer: 3, 5, 8


Question: ['87', '139', 'y', '129', '255', '227', '103', 'j']

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


Question: ['x', '195', '85', 'l', '387', '1', 'k', '429', '317', 'p', '483', 'w', 'k', 'g']

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