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.

['u', 'c', 'f', 'z', '51', '301', 'q', '275']
0, 1, 2, 3, 5, 7

['s', 'd']
-1

['w', 's']

-1