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]: ['193', '195', '411', 'p', '161', 'j']
[EX A]: 1, 3, 4, 5, 6, 9

[EX Q]: ['285', 'f', '469', 'b', '161', 'q', 'l']
[EX A]: 1, 2, 4, 5, 6, 8, 9

[EX Q]: ['49', '479', 'm', '123']
[EX A]:
1, 2, 3, 4, 7, 9