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]: ['q', 'u', '199', 'v', '249']
[EX A]: 1, 2, 4, 9

[EX Q]: ['f', '73', 'k', '333', '345', 'e', 'x', 'j']
[EX A]: 3, 4, 5, 7

[EX Q]: ['a', 'w', '241', 'n']
[EX A]:
1, 2, 4