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:
['x', 'a', '381', 'k', 'n', 'm', '267', 'r', '193', 'f', 'h', 'r', '327', 'i', 'h']
answer:
1, 2, 3, 6, 7, 8, 9


question:
['475', 's', '123', '389', 'y', 'm', 'v', '47', 'u', '479', '357', '279', '137', 'l', 'i']
answer:
1, 2, 3, 4, 5, 7, 8, 9


question:
['17', 'u', '249', '311', 's', '417', 'b', '67', '101', 't', '381', 'o', 'o', 'd']
answer:

0, 1, 2, 3, 4, 6, 7, 8, 9