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:
['235', '17', 'g', '125', '455', 'h', 'u', 'u', 'y', '219', '129', 'q', 'u', 'r']
answer:
1, 2, 3, 4, 5, 7, 9


question:
['357', '269', '105', '315', 'c', '301', 'v', '441', '415', 't', 'a', 'o', 'u', '23', 'n']
answer:
0, 1, 2, 3, 4, 5, 6, 7, 9


question:
['137', '115', 'e', '47', 'x', '11', 'o', '229', '309', '167']
answer:

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