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.

[EX Q]: ['407', 'a', 'l', '307', 'a']
[EX A]: 0, 3, 4, 7

[EX Q]: ['197', 'p', 'e', '217', '327', '439', '59', 'o', '355', 'z']
[EX A]: 1, 2, 3, 4, 5, 7, 9

[EX Q]: ['385', '135', '133', '171', '311', '21', 'u', '403', 'j', '451', 'q', '321', 'a', '55', 'y']
[EX A]:
0, 1, 2, 3, 4, 5, 7, 8