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]: ['437', '377']
[A]: 3, 4, 7


[Q]: ['265', 'x', '109', '319', 's', 'w', '211']
[A]: 0, 1, 2, 3, 5, 6, 9


[Q]: ['395', '101', 't', 'o', 'm', '307', '429', '409', '31', '429', '415', '459', '443', '309']
[A]:
0, 1, 2, 3, 4, 5, 7, 9