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]: ['177', '323', 'q', 'e', 'x', 'p', '3', 'c', 'e', '23', 's', '407', 'l', '21', 'z']
[A]: 0, 1, 2, 3, 4, 7


[Q]: ['397', '287', '401', '97']
[A]: 0, 1, 2, 3, 4, 7, 8, 9


[Q]: ['c', '259', '55', 'q', '469', '125', '355', 'w', '177', '43', 'f', 'r', '143', '403', 'y']
[A]:
0, 1, 2, 3, 4, 5, 6, 7, 9