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: ['171', 'h', '53', 'o', 'q']

A: 1, 3, 5, 7
****
Q: ['p', '231', 'd', 'i', '33', '431']

A: 1, 2, 3, 4
****
Q: ['o', '397']

A:
3, 7, 9
****