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: ['c', 'm', 'h', 'c', '69', '233', 'j', 'g', 'r', 'x', '59', 'p', '469']

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


Question: ['255', 'u', 's', 'g', '445']

Answer: 2, 4, 5


Question: ['x', 'i', '153', '413', 'v', '399']

Answer:
1, 3, 4, 5, 9