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.

['k', '217']
1, 2, 7

['229', '369', 'c', '7', 'f', 'h', '455', 't', '249', 's']
2, 3, 4, 5, 6, 7, 9

['441', '363', 'd', '231', 'c', '393', '27', 'a', '101', 'p', 'b', 'v']

0, 1, 2, 3, 4, 6, 7, 9