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]: ['85', '311', 'x', '97', 'b', '277', 's', 'a', 'v', 'o', 'a']
[EX A]: 1, 2, 3, 5, 7, 8, 9

[EX Q]: ['v', '105', 'p', 'w', '295', '239', '453']
[EX A]: 0, 1, 2, 3, 4, 5, 9

[EX Q]: ['w', 'l', '489', '117', '311', 'a', '233', 'j', 'n', 'b', '79']
[EX A]:
1, 2, 3, 4, 7, 8, 9