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: ['i', 'b', 'w', '409', 'f', '67', 's', '21', 'y', 'c', '401', 'f', 'k', '319']

A: 0, 1, 2, 3, 4, 6, 7, 9
****
Q: ['l', '203']

A:
0, 2, 3
****