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:
['d', '71', '65', '177', 'k']
answer:
1, 5, 6, 7


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


question:
['17', '447', '103', '355', '125', '53', 'n', '87', 'k', '219']
answer:

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