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.

['v', 'r', '67', '49']
4, 6, 7, 9

['t', 'r', 'z']
-1

['61', 'h', 'v', '195', '377', 'n', '265', '203']

0, 1, 2, 3, 5, 6, 7, 9