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: ['h', 'o', 's', '335', '317', '279', '217', '485']

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


Question: ['f', '73', 'k', '333', '345', 'e', 'x', 'j']

Answer: 3, 4, 5, 7


Question: ['309', '115', '151', '379', '435']

Answer:
0, 1, 3, 4, 5, 7, 9