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]: ['p', '103', 'd', '411', 'f']
[EX A]: 0, 1, 3, 4

[EX Q]: ['109', 't', '283', 'c', 'u', 'y', '251', 'x', '377', 'n', 's', 'd', 't', 'q', 'o']
[EX A]: 0, 1, 2, 3, 5, 7, 8, 9

[EX Q]: ['m', 'p', 'f', 'q', '149', '127']
[EX A]:
1, 2, 4, 7, 9