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.

['h', 't', '371', 'e', '153', 'b']
1, 3, 5, 7

['159', 'y', '369', 'r', '341', '23', 's', '209', 'l', 's', '473']
0, 1, 2, 3, 4, 5, 6, 7, 9

['v', '153', 'u', '139']

1, 3, 5, 9