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.

['k', '373', 'b', '305', 'i', 'n', 'z', 'm', 'c']
0, 3, 5, 7

['l', 'm', 'h', '87', '265', 'e', '415', '325', 'p', 'b', '385']
1, 2, 3, 4, 5, 6, 7, 8

['i', 'f', 'i', 'u', '63', 'j']

3, 6