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]: ['p', 'p', '91']
[A]: 1, 9


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


[Q]: ['219', '397', '423', 'd', '331', '407', '271', 'm', '173', '85', 'v', 'g', '231']
[A]:
0, 1, 2, 3, 4, 5, 7, 8, 9