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: ['r', 'o', 'n', '219', 'a', '419', 'x', '261', 'h', 's', '373', '155', 's', '171']

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


Question: ['65', '195', 'k', '231', 'v', '359', '339', 'h', '405', '359', 'j']

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


Question: ['113', 'e', '373', '485', 'k', '203', '231', '449']

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