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: ['165', '219', 'r', 's', '191', 'k', '39']

Answer: 1, 2, 3, 5, 6, 9


Question: ['f', '253', '211', '85', 'm', 'y', 'l', 'r', 't', 'm', '193', 'p', '415', 'h', 'h']

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


Question: ['67', '319', '439', '463', '469']

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