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:
['b', 'n', '369', '199', 'r', '165', '63', 'y', '331', '57']
answer:
1, 3, 5, 6, 7, 9


question:
['273', 'b', '461', '419', '349', '301', '365', 'k', '319', 'o']
answer:
0, 1, 2, 3, 4, 5, 6, 7, 9


question:
['357', '243', 'u', 'w', '109', 'y', '363', 'z', 'q', '111', '205', '107', '347', '343', 'f']
answer:

0, 1, 2, 3, 4, 5, 6, 7, 9