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.

Input: Consider Input: ['b', '351', 'g', 'k', '29', '15', '411', '97', 'r', '27', '279']

Output: 1, 2, 3, 4, 5, 7, 9


Input: Consider Input: ['q', 'p', 'y', 'p', 'k', 'r', '481', 'v']

Output: 1, 4, 8


Input: Consider Input: ['k', 'q', 'a', 'u', 'q']


Output: -1