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', 'm', 'h', 'c', '69', '233', 'j', 'g', 'r', 'x', '59', 'p', '469']
[A]: 2, 3, 4, 5, 6, 9


[Q]: ['229', 'x', '49', 'p', '73', '77', '337', '497']
[A]: 2, 3, 4, 7, 9


[Q]: ['75', 'd', '53']
[A]:
3, 5, 7