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]: ['o', 'f', 'm', 'w', 'w', 'y', 'b']
[EX A]: -1

[EX Q]: ['e', '325', '377', 'v', '35', 'n', '125', '195']
[EX A]: 1, 2, 3, 5, 7, 9

[EX Q]: ['p', '25']
[EX A]:
2, 5