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

[EX Q]: ['d', '71', '65', '177', 'k']
[EX A]: 1, 5, 6, 7

[EX Q]: ['r', '197', '1', '21', '439', 'c', '387', 'k', '361', '251', '113', 'i', 'z', 'v']
[EX A]:
1, 2, 3, 4, 5, 6, 7, 8, 9