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: ['v', 'r', '67', '49']

Output: 4, 6, 7, 9


Input: Consider Input: ['o', '235', '479', 'e', '199', 'c', '25', '59', 'g', '415', '201', '129', 'a', 'i', 'c']

Output: 0, 1, 2, 3, 4, 5, 7, 9


Input: Consider Input: ['7', 'd', 'a', 'f', 's']


Output: 7