instruction:
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.
question:
['349', '327', 'c', 'a', '493', 'a', 'm', '337', '397', '213', '203', '139']
answer:
0, 1, 2, 3, 4, 7, 9


question:
['n', '149', 'z', '37']
answer:
1, 3, 4, 7, 9


question:
['63', 'e', 'r', '75']
answer:

3, 5, 6, 7