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]: ['k', '153', '13']
[A]: 1, 3, 5


[Q]: ['h', 't', 'h', 'i', 'c', '441', '117', '463', 'r']
[A]: 1, 3, 4, 6, 7


[Q]: ['491', '461', 'f', 'n', 'z', 's', '419', '261', 'p', 'w']
[A]:
1, 2, 4, 6, 9