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: ['l', 'z', '453', '361', 'p', 'c', 'n', '77', '113', '261', 'g']

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


Question: ['229', '369', 'c', '7', 'f', 'h', '455', 't', '249', 's']

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


Question: ['k', '461', 'f', '395', 'y', 'y', '139', 'y', 'n']

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