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: ['177', '323', 'q', 'e', 'x', 'p', '3', 'c', 'e', '23', 's', '407', 'l', '21', 'z']

Answer: 0, 1, 2, 3, 4, 7


Question: ['429', 'a', 'g', '7', 'j', 'd', 'y', '113']

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


Question: ['h', '35', 'w', '285', 'l', '419', 'c', '127', '161', '131']

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