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]: ['x', '325', 'i', 'n', 'i', 'w', 't']
[EX A]: 2, 3, 5

[EX Q]: ['431', '245', '23', 'c', '185', 'k', '155', '163', 'e', '35', 'r', '175', '163']
[EX A]: 1, 2, 3, 4, 5, 6, 7, 8

[EX Q]: ['q', '153', 'r', 'm', 'k', 'z', '65', 'y', 'o', 'q', '421', '489', 'p', 't', '493']
[EX A]:
1, 2, 3, 4, 5, 6, 8, 9