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]: ['45', 'n', 'u', '199', 'y', 'w']
[EX A]: 1, 4, 5, 9

[EX Q]: ['85', '53', '43', 'j', 'e', '443', '231', 'z', 'f', 'v', '235', '377']
[EX A]: 1, 2, 3, 4, 5, 7, 8

[EX Q]: ['n', 'e', 'd', 'f', 'x', 'b', 't']
[EX A]:
-1