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]: ['o', 'e', '187', '153', 'a', '253', 'f']
[EX A]: 1, 2, 3, 5, 7, 8

[EX Q]: ['439', '443', '175', 'e', 'm', '361', 'd']
[EX A]: 1, 3, 4, 5, 6, 7, 9

[EX Q]: ['361', 't', '21', '75', '293', 'e', 'u', '19', 'l', 'p', '65']
[EX A]:
1, 2, 3, 5, 6, 7, 9