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.

[Q]: ['375', '457', '423', 'q', 't']
[A]: 2, 3, 4, 5, 7


[Q]: ['r', '273', 'h', '421', 'k', 'r', 'k', 't', 'x', 's', 'j']
[A]: 1, 2, 3, 4, 7


[Q]: ['e', '411']
[A]:
1, 4