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]: ['333', '207', '13', '339', 'n', '387']
[EX A]: 0, 1, 2, 3, 7, 8, 9

[EX Q]: ['j', 'w', 'h', 'r', 'w', 'h', 'd', 'f', '81', 'g', '145']
[EX A]: 1, 4, 5, 8

[EX Q]: ['n', '51', 'x', '329', 'b', 'f', 'l', 'i', 's', '399']
[EX A]:
1, 2, 3, 5, 9