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: ['25', 'n', 'n', '481', 'w', '91', '251']

Output: 1, 2, 4, 5, 8, 9


Input: Consider Input: ['n', 'm', 'u', '267']

Output: 2, 6, 7


Input: Consider Input: ['i', 'r', 'l', '141', 'r', '247']


Output: 1, 2, 4, 7