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]: ['z', 'z', '273']
[EX A]: 2, 3, 7

[EX Q]: ['z', 't', 'm', '295', '459', 'r', 'k', '149', '263', '5', '57', '455']
[EX A]: 1, 2, 3, 4, 5, 6, 7, 9

[EX Q]: ['j', 'm', 's', 'b', '301', 'g', 'y', 'b', '375', 'v', 'p', '409', '171']
[EX A]:
0, 1, 3, 4, 5, 7, 9