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: ['p', 't', '211', 'r', '439', 'h', 'g', 'c', '299', '371']

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


Input: Consider Input: ['271', '9', 'v', '93', 'f', 'd']

Output: 1, 2, 3, 7, 9


Input: Consider Input: ['e', '127', 's', 'u']


Output: 1, 2, 7