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]: ['197', 'p', 'e', '217', '327', '439', '59', 'o', '355', 'z']
[EX A]: 1, 2, 3, 4, 5, 7, 9

[EX Q]: ['p', '121', '55', '205', 'n', '393', 'l', 's', 'k', 'c', 'n']
[EX A]: 0, 1, 2, 3, 5, 9

[EX Q]: ['175', 's', 'e', '371', '141', 'd']
[EX A]:
1, 3, 4, 5, 7