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: ['i', 'z', '131', '449', '141', 's']

A: 1, 3, 4, 9
****
Q: ['z', '273', '447', 'h']

A: 2, 3, 4, 7
****
Q: ['z', 's', 'a', '399', '311', 'e', 'd', '477', '193', 'v', '111', '355', '195', '173']

A:
1, 3, 4, 5, 7, 9
****