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: ['s', 't', 'c', '299', 'g', '33', 'o', '485', '345', '295', 'm', '345', 'q', '431', '151']

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


Question: ['l', '269', 'l', '379', '359']

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


Question: ['w', '1', 'f', '83', 'p', 'x', '181', '145', 'p', '199', '267', '431']

Answer:
1, 2, 3, 4, 5, 6, 7, 8, 9