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]: ['39', '461', '163', '379', '331', '137', 'g', 'm']
[EX A]: 1, 3, 4, 6, 7, 9

[EX Q]: ['427', '457', 't', 'z', 'd', '175', 'e', 't', '57', '41', '297', 'g', 'v', 's', 'i']
[EX A]:
1, 2, 4, 5, 7, 9