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.

['j', 'w', 'h', 'r', 'w', 'h', 'd', 'f', '81', 'g', '145']
1, 4, 5, 8

['425', 'x', 'u', 'f', 'v', '481', 'm', 'y', '159', '1']
1, 2, 4, 5, 8, 9

['q', 'u', '199', 'v', '249']

1, 2, 4, 9