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: ['405', 'x', '163', 'z', 'z', '261', 'o']

Answer: 0, 1, 2, 3, 4, 5, 6


Question: ['z', '209']

Answer: 0, 2, 9


Question: ['153', 'c', '155', 'v', '139', '109', 'v', '475', 'f', '463', 'r', 'j', '19', '493', 'e']

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