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]: ['217', 'c', 'h', 'e', 't', '331', '69']
[EX A]: 1, 2, 3, 6, 7, 9

[EX Q]: ['x', '493', 'x', '211', 'n', '143', '277', '191']
[EX A]: 1, 2, 3, 4, 7, 9

[EX Q]: ['e', '49', 'm', 's', 'c', 's', '119']
[EX A]:
1, 4, 9