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: ['159', 's', 'z', '85', 't', 'g']

Answer: 1, 5, 8, 9


Question: ['451', 'd', '429', '23', '143', '223', 'm', '51']

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


Question: ['p', 'w', 'u', '225']

Answer:
2, 5


