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.

['25', 'b', '455', 'n', '305', '271']
0, 1, 2, 3, 4, 5, 7

['u', '157', '63', '411', 'x', 'c', 'k', 'z', 'i', '279', '311', '431']
1, 2, 3, 4, 5, 6, 7, 9

['l', 'a', '65', 'j', '93', 'm', '25', 'e', '263', '381', 'v', 'u', '359', '99', '195']

1, 2, 3, 5, 6, 8, 9