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:
['i', 'f', 'g', '267', '113', '93', 'r', '401', 'g', 'e']
answer:
0, 1, 2, 3, 4, 6, 7, 9


question:
['109', 't', '283', 'c', 'u', 'y', '251', 'x', '377', 'n', 's', 'd', 't', 'q', 'o']
answer:
0, 1, 2, 3, 5, 7, 8, 9


question:
['a', 'i', '411', '155', '125']
answer:

1, 2, 4, 5