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: ['k', '233', 'h', 'd', 's', '83', '149', 'p', 'm']

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


Question: ['x', '281', 'n', '385', '435', 'l', 's', '445', 'n', 'n', '133']

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


Question: ['r', 'c', 'd', '239', '211', '41', '31', '183', 'z', 'h', 'a', 'w']

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