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', '105', 'p', 'w', '295', '239', '453']

Answer: 0, 1, 2, 3, 4, 5, 9


Question: ['m', 'n', '481', 'a', '343', '19', 'l', 'l', '477', '71']

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


Question: ['211', '235', 'j', '65', 'q', '267', 'g', '375', '167', '457']

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