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]: ['41', 'o', 'm', 'h', 's', 't', '407', '445', '371', '93', '291', '457', 'r', '391', 'a']
[EX A]: 0, 1, 2, 3, 4, 5, 7, 9

[EX Q]: ['45', 'n', 'u', '199', 'y', 'w']
[EX A]: 1, 4, 5, 9

[EX Q]: ['345', '193', '313', 'a', 'p', 'a', '41', 't', 'i', '87', 'g', 'h']
[EX A]:
1, 3, 4, 5, 7, 8, 9