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.

['x', '325', 'i', 'n', 'i', 'w', 't']
2, 3, 5

['v', 'j', 'l', 'f', 'n', '185', 'x', '367']
1, 3, 5, 6, 7, 8

['k', '373', 'b', '305', 'i', 'n', 'z', 'm', 'c']

0, 3, 5, 7