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: ['285', 'f', '469', 'b', '161', 'q', 'l']

Answer: 1, 2, 4, 5, 6, 8, 9


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

Answer: 0, 2, 3


Question: ['23', 'k', '87', '313', '1', 'a', '257', '287', '377', '297', 'f']

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