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]: ['257', '111', 'g', '277', '473', '105', 'x', '217']
[A]: 0, 1, 2, 3, 4, 5, 7


[Q]: ['165', 'k', 'a', 'v', 'u', '61', '327']
[A]: 1, 2, 3, 5, 6, 7


[Q]: ['215', 'i', 'r', '13', 'b', '471', '445', '309', 'u', '149', '445', '21', '259']
[A]:
0, 1, 2, 3, 4, 5, 7, 9