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: ['163', '375', 'e', 'g', '115', '445', 'c', '393', 'm', '59']

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


Question: ['61', '417', '437', '489', '383', 'n', '11', 'o', 'a', 'v', '37', 'q', '317']

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


Question: ['121', 'b', '297', 'g', 'r', 'a', 'f', '243', '323', '289', 'a', 'i', '255', 'o']

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


