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: ['279', 'm', '453', 's', 'x', 'g', 'i', 'x', 'd']

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


Question: ['v', '351', 's', 'f', 'd', '137', '11', '355', '345', 'm', 's', '165', '97', '225']

Answer: 1, 2, 3, 4, 5, 6, 7, 9


Question: ['q', '375', 'f', '111']

Answer:
1, 3, 5, 7