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: ['o', 'f', 'm', 'w', 'w', 'y', 'b']

Answer: -1


Question: ['293', '473', '79', 'j', '455', '285', 'k', 'd', '379', '249', '73', '229']

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


Question: ['y', '399', '41', 'p', '465', '383', 'v', '487', '161', '357', '111']

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