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]: ['257', '111', 'g', '277', '473', '105', 'x', '217']
[EX A]: 0, 1, 2, 3, 4, 5, 7

[EX Q]: ['f', 't', 'h', 'z', '433', 'm', 'd', 'z', '467']
[EX A]:
3, 4, 6, 7