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]: ['159', 'y', '369', 'r', '341', '23', 's', '209', 'l', 's', '473']
[EX A]: 0, 1, 2, 3, 4, 5, 6, 7, 9

[EX Q]: ['c', 'h', '151', 'g', 'd', 'd', 'k', '37']
[EX A]: 1, 3, 5, 7

[EX Q]: ['t', '163', 'i', 'l', '225', 'v', '481', '377', 'l', '393']
[EX A]:
1, 2, 3, 4, 5, 6, 7, 8, 9