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


[Q]: ['s', '443', '239', 't', '99']
[A]: 2, 3, 4, 9


[Q]: ['b', '23', '287', '295', 'f', 'n', 'z', '9', 'u', 'e', 'h', 'x', 'n']
[A]:
2, 3, 5, 7, 8, 9