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]: ['385', 'b', 'c']
[EX A]: 3, 5, 8

[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]: ['l', 't', 'a', '15', 'h']
[EX A]:
1, 5