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: ['95', '205', 'c', '101']

Answer: 0, 1, 2, 5, 9


Question: ['w', '203', 'd', '133', 'i', 'j', 'd', 'u', 'u', 's', 'f', 'f', '221', '341', '299']

Answer: 0, 1, 2, 3, 4, 9


Question: ['307', 'k', '197', '461', 'o', '239', 'z', '19', 'y', 'f', 'e', 't', '425', '489']

Answer:
0, 1, 2, 3, 4, 5, 6, 7, 8, 9