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:
['343', '471', 'z', 'e', 'z', '351']
answer:
1, 3, 4, 5, 7


question:
['k', '135', '297']
answer:
1, 2, 3, 5, 7, 9


question:
['23', '111', '45', '175', '117', 'r', '389']
answer:

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