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.

['y', '101', 'g', 'c', 'z']
0, 1

['477', 'a', 'n', 'r', '457', 'g', 'c']
4, 5, 7

['d', 'b', '219', 'k', 'p', 'm', 'y', '497', '147', '19', '439']

1, 2, 3, 4, 7, 9