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]: ['t', 'r', 'z']
[A]: -1


[Q]: ['159', 'y', '369', 'r', '341', '23', 's', '209', 'l', 's', '473']
[A]: 0, 1, 2, 3, 4, 5, 6, 7, 9


[Q]: ['e', '129', '209', '273', '299']
[A]:
0, 1, 2, 3, 7, 9