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]: ['459', 'd', '473', 'i', 'l', 's']
[EX A]: 3, 4, 5, 7, 9

[EX Q]: ['j', 'k']
[EX A]: -1

[EX Q]: ['43', 'z', 'l', '179']
[EX A]:
1, 3, 4, 7, 9