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.

['287', 'y', 'b', '79', '39', 'l']
2, 3, 7, 8, 9

['h', '475', 'x', '53', '461', 'c']
1, 3, 4, 5, 6, 7

['b', 'h', 'r', 'y', '145', 'm']

1, 4, 5