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

[EX Q]: ['g', '169', '93', 'z', 'h', '493', 'r']
[EX A]: 1, 3, 4, 6, 9

[EX Q]: ['g', '393', 'z', 'p', '231']
[EX A]:
1, 2, 3, 9