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]: ['s', '95', 'j', '173', '437', '143', 'n', '357', 'w', '239', '219']
[A]: 1, 2, 3, 4, 5, 7, 9


[Q]: ['b', 'n', '369', '199', 'r', '165', '63', 'y', '331', '57']
[A]: 1, 3, 5, 6, 7, 9


[Q]: ['w', 'e', 'z', '361', 'a', '241']
[A]:
1, 2, 3, 4, 6