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

[EX Q]: ['213', '321', 'z']
[EX A]: 1, 2, 3

[EX Q]: ['191', '47', '11', '377', '89', '207', '373', 'v', 'g', 'k', '157', 'u', 'z', 'j', 'l']
[EX A]:
0, 1, 2, 3, 4, 5, 7, 8, 9