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: ['i', 'f', 'g', '267', '113', '93', 'r', '401', 'g', 'e']

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


Question: ['k', 'k', 'o', 'c', 'p', '301', 'o']

Answer: 0, 1, 3


Question: ['203', 'p', 'r', 'r', 'c', 'w', 'z', 'w', 'a', '203', 'n']

Answer:
0, 2, 3