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.

['t', '175', '163', 'k', '279', '385', 'y', '71', 'g']
1, 2, 3, 5, 6, 7, 8, 9

['311', '147', 'a', '149', 'h']
1, 3, 4, 7, 9

['183', '235', 'a', '261', 'z', 'n', 's', 'q', 'm', '311', '399', '457']

1, 2, 3, 4, 5, 6, 7, 8, 9