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:
['45', '95', 'y', '363', '265', '307', '309', '423']
answer:
0, 2, 3, 4, 5, 6, 7, 9


question:
['v', 'q', '139', '79', '149', '469', 'g', '239', '221', 'v', '77']
answer:
1, 2, 3, 4, 6, 7, 9


question:
['5', 'x', 'q', 'm', '275', 'x']
answer:

2, 5, 7