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: ['k', '107', '333', '317', 'm', 'w', 'g', 'f']

Answer: 0, 1, 3, 7


Question: ['203', 'p', 'r', 'r', 'c', 'w', 'z', 'w', 'a', '203', 'n']

Answer: 0, 2, 3


Question: ['e', '359', 'u', '205']

Answer:
0, 2, 3, 5, 9