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]: ['371', '459', '9', 'j', '425', 'k', '495', 'x', '105', '49', 'j', '101', 's']
[EX A]: 0, 1, 2, 3, 4, 5, 7, 9

[EX Q]: ['e', 'l', 'p', 'e', '55', 'j', 'z', '217', 'v', '399', 's', '119']
[EX A]: 1, 2, 3, 5, 7, 9

[EX Q]: ['u', '347', '357', 'g', 'n', '421', 'h', '137', 'f', '397', '491', 'i', '323']
[EX A]:
1, 2, 3, 4, 5, 7, 9