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.

[EX Q]: ['k', 'b', 'k', 'l', '441', 'b', '115', 'd', 'b', 'r', '115', 'k', 'a']
[EX A]: 1, 4, 5

[EX Q]: ['165', 'k', 'a', 'v', 'u', '61', '327']
[EX A]: 1, 2, 3, 5, 6, 7

[EX Q]: ['225', '481', '383', 'o', 'e', 'n', '485', 'b', '157', 'u']
[EX A]:
1, 2, 3, 4, 5, 7, 8