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: ['e', '313', '259', 'i', 'h']

A: 1, 2, 3, 5, 9
****
Q: ['u', '465', '129', 'o']

A: 1, 2, 4, 5, 6, 9
****
Q: ['d', 'o', 'r', '387', 'a', '167', 'r']

A:
1, 3, 6, 7, 8
****