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: ['f', 'f', '149', '311', '331', 'l', 'u', '349', 'v', 'v', '417', '285']

A: 1, 2, 3, 4, 5, 7, 8, 9
****
Q: ['k', 'b', 'k', 'l', '441', 'b', '115', 'd', 'b', 'r', '115', 'k', 'a']

A: 1, 4, 5
****
Q: ['c', 'a', '59', '331']

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