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: ['p', '103', 'd', '411', 'f']

Answer: 0, 1, 3, 4


Question: ['s', 'd']

Answer: -1


Question: ['m', 'k', '207', 'b']

Answer:
0, 2, 7