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.

['271', '9', 'v', '93', 'f', 'd']
1, 2, 3, 7, 9

['r', '273', 'h', '421', 'k', 'r', 'k', 't', 'x', 's', 'j']
1, 2, 3, 4, 7

['47', '107', 'l', '339']

0, 1, 3, 4, 7, 9