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]: ['279', 't', 'e', 'j', '437', '167', 's', 'n']
[A]: 1, 2, 3, 4, 6, 7, 9


[Q]: ['j', 't']
[A]: -1


[Q]: ['g', '129', '429', '267', '71', '217', 'k', 'c', '107', 'j', 'l']
[A]:
0, 1, 2, 4, 6, 7, 9