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]: ['141', 'm', '139', '197', '321', '265', 'p']
[EX A]: 1, 2, 3, 4, 5, 6, 7, 9

[EX Q]: ['f', 'u', 'd', '51', 'w', '449', 'z', '313', '153', 'z', '319']
[EX A]: 1, 3, 4, 5, 9

[EX Q]: ['451', 'i', '395', '123', 'k', '345', 'c', 'q', '371', '333', '297', 'k', '347', 'r', 'p']
[EX A]:
1, 2, 3, 4, 5, 7, 9