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: ['m', '347', 'o', 'i', 'u', '135', 'e', '179', 'q', '13']

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


Question: ['h', 'o', 's', '335', '317', '279', '217', '485']

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


Question: ['r', '453', 'i', '405', '497', 'u', 'i', '341', 'j', 't']

Answer:
0, 1, 3, 4, 5, 7, 9