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]: ['c', '155', '61']
[A]: 1, 5, 6


[Q]: ['355', 'h', '287', 's', 'o', '497', '219']
[A]: 1, 2, 3, 4, 5, 7, 8, 9


[Q]: ['k', '83', '493', '445', '249', 'a', '295']
[A]:
2, 3, 4, 5, 8, 9