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.
--------
Question: ['367', 'j', 'p', '177', 'w', '367', '495', 'g', '253', '211', '385']

Answer: 1, 2, 3, 4, 5, 6, 7, 8, 9


Question: ['117', '247', '49', '63']

Answer: 1, 2, 3, 4, 6, 7, 9


Question: ['t', 'u', 'e', 'a', '369', 'e', 'r', 'm']

Answer:
3, 6, 9