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]: ['405', 'x', '163', 'z', 'z', '261', 'o']
[EX A]: 0, 1, 2, 3, 4, 5, 6

[EX Q]: ['43', 'n', 's', '453', 'c', '205']
[EX A]: 0, 2, 3, 4, 5

[EX Q]: ['23', 'p', '409', '305', 'z', 'q', '295', '391']
[EX A]:
0, 1, 2, 3, 4, 5, 9