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.

[Q]: ['i', 'f', '109']
[A]: 0, 1, 9


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


[Q]: ['165', '395', '473', 's', 'g', '397', 'n', '127', 'a', '229', 'c']
[A]:
1, 2, 3, 4, 5, 6, 7, 9