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]: ['m', '347', 'o', 'i', 'u', '135', 'e', '179', 'q', '13']
[EX A]: 1, 3, 4, 5, 7, 9

[EX Q]: ['k', '135', '297']
[EX A]: 1, 2, 3, 5, 7, 9

[EX Q]: ['f', 'y', 'n', 'f', '445', 'r', '239', '103', 'w', 'e']
[EX A]:
0, 1, 2, 3, 4, 5, 9