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]: ['167', '229', '439', '389', '483', '207']
[EX A]: 0, 1, 2, 3, 4, 6, 7, 8, 9

[EX Q]: ['d', '71', '65', '177', 'k']
[EX A]: 1, 5, 6, 7

[EX Q]: ['167', '229', '439', '389', '483', '207']
[EX A]:
0, 1, 2, 3, 4, 6, 7, 8, 9