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: ['363', '455']

Output: 3, 4, 5, 6


Input: Consider Input: ['29', 'n']


Output: 2, 9