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

['l', 'g', 'o', 'x', '27', 'r', '123', '395', 'p', '27', '213', '455', 'y', '97']
1, 2, 3, 4, 5, 7, 9

['h', '487', '457', 'f', 'v', '477', 'g', '411', '497', 'n']

1, 4, 5, 7, 8, 9