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: ['389', 'v', '17', 'n', 'm']

Answer: 1, 3, 7, 8, 9


Question: ['217', '481', '87', 'w', 'q', 'c', 'j', '275', 'e', '49', '87', '25']

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


Question: ['w', '211', 's', 'i']

Answer:
1, 2