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.

Q: ['s', '443', '239', 't', '99']

A: 2, 3, 4, 9
****
Q: ['483', '409', '129', 'u', '167', '275', 'p', '163', 'r', 'q', 'i', '481', 'j', '271']

A: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
****
Q: ['307', '117', 's', 'j']

A:
0, 1, 3, 7
****