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:
['u', '465', '129', 'o']
answer:
1, 2, 4, 5, 6, 9


question:
['d', '351', '357', 'q', 'b', '19', 'r', '231', '381', 'x', 'a', 'y', '263']
answer:
1, 2, 3, 5, 6, 7, 8, 9


question:
['173', 'z', 'p', 'k', 'x', '377']
answer:

1, 3, 7