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]: ['g', 'g', 'r', 'g', 'b', 'z', '441', 'z', 'f', '35', 'x', '327', 'l', 'n']
[EX A]: 1, 2, 3, 4, 5, 7

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

[EX Q]: ['165', 'c', 'h', 'a', '305', 's', 'i', 'y', 'd', 'q']
[EX A]:
0, 1, 3, 5, 6