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]: ['u', '157', '63', '411', 'x', 'c', 'k', 'z', 'i', '279', '311', '431']
[EX A]: 1, 2, 3, 4, 5, 6, 7, 9

[EX Q]: ['219', 'v', '295', '291', 'n', 'a', '133', 'a', 'y', 'i', 'e', '235', '461']
[EX A]: 1, 2, 3, 4, 5, 6, 9

[EX Q]: ['477', 'z', 'h', '253', '51', 'a', 't', '129', '325', 'e']
[EX A]:
1, 2, 3, 4, 5, 7, 9