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: ['233', '339', '319']

Answer: 1, 2, 3, 9


Question: ['445', '91', '141', '185', 'b', 'k', 'f', 'l', 'i', '229', 't', 'v']

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


Question: ['33', 'g', '487', '5', 'o']

Answer:
3, 4, 5, 7, 8