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.

[Q]: ['489', 'y', 's', 'x', '203', 't', 'y', '461', 'v', 'k', '371', 'e']
[A]: 0, 1, 2, 3, 4, 6, 7, 8, 9


[Q]: ['425', 'x', 'u', 'f', 'v', '481', 'm', 'y', '159', '1']
[A]: 1, 2, 4, 5, 8, 9


[Q]: ['c', 'n', '375', 'r', '107', 'g', '243', 'c', '299', 'd', 'y']
[A]:
0, 1, 2, 3, 4, 5, 7, 9