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: ['f', '291', '145', 'd', 'z', '355', 'r']

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


Question: ['y', 'm', '121', 'h', 'm', '189', '117', '257', 'y', '181', '279', 'a', '453']

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


Question: ['135', '465', '253', '231', 'p']

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