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]: ['k', 'q', 'a', 'u', 'q']
[EX A]: -1

[EX Q]: ['a', '55', 's', '71', '271', '211']
[EX A]: 1, 2, 5, 7

[EX Q]: ['31', '195', '237', '443', 'q', 'q', '237']
[EX A]:
1, 2, 3, 4, 5, 7, 9