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.

['r', 'o', 'n', '219', 'a', '419', 'x', '261', 'h', 's', '373', '155', 's', '171']
1, 2, 3, 4, 5, 6, 7, 9

['t', '437', 'o', 'w', 'x', 'e', 'r', 'r', '149', 'd', '391']
1, 3, 4, 7, 9

['o', 'f', 'o', '453', '193']

1, 3, 4, 5, 9