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]: ['161', '433', '373', '225', '161', 'b', '179', '311', 'f', '325', 'y', 'c', 'h', '87']
[EX A]: 1, 2, 3, 4, 5, 6, 7, 8, 9

[EX Q]: ['h', '281', 'x', '471']
[EX A]: 1, 2, 4, 7, 8

[EX Q]: ['453', 'b', 's', 'c', 'o', 'p', 'e', 'x', 'u', 'h', 'm']
[EX A]:
3, 4, 5