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.

[Q]: ['t', 'p', 'j', 'x', 'k', '295', '221', '261', '221', 'b', '431', '427']
[A]: 1, 2, 3, 4, 5, 6, 7, 9


[Q]: ['h', '477', 'w', '315', 'k', 'd', '367', '411', '207', 'b', '81', 'k', 'f', '107', '103']
[A]: 0, 1, 2, 3, 4, 5, 6, 7, 8


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