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: ['g', 't', '31', 't', 's']

A: 1, 3
****
Q: ['243', 't', '249', 'q', '459', '469', '301', 'j', '215', '21']

A: 0, 1, 2, 3, 4, 5, 6, 9
****
Q: ['u', 'd', '179', '217', 'q', 'r', 'o', 'f', 'o', 'l', '299', '311', 'm', 'j', '391']

A:
1, 2, 3, 7, 9
****