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]: ['u', 'm', 'n', 'h', 'u']
[EX A]: -1

[EX Q]: ['l', '283', '171', 'q', '465', 'u', '325', 'd', 'j', '349', '351', '229', 'z']
[EX A]: 1, 2, 3, 4, 5, 6, 7, 8, 9

[EX Q]: ['175', '493', '297', '387', '323', '215', 'a', '435', 'l', '111', 'c', 'q', 'p']
[EX A]:
1, 2, 3, 4, 5, 7, 8, 9