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: ['v', 'i', 'g', 'h']

Answer: -1


Question: ['87', '353', '329', '163', 'i', 'd', '287']

Answer: 1, 2, 3, 5, 6, 7, 8, 9


Question: ['295', 'n', '135', 'p', 'u', '463']

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