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]: ['t', 'p', 'u', 'a']
[EX A]: -1

[EX Q]: ['r', '233']
[EX A]: 2, 3

[EX Q]: ['j', '259', '325', 'h', 'd', 'g', '69', 'w', '287', '369', '229', 'h', 'w']
[EX A]:
2, 3, 5, 6, 7, 8, 9