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: ['103', '431', 'z', '99', 'h', 'c', 'a', '433', '55', 'k', 'a']

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


Question: ['m', '221', '261', '175', '183', '359', 'h', '157', 'p', 'r', 'c', 'g', '193', 's']

Answer: 1, 2, 3, 5, 6, 7, 8, 9


Question: ['215', '451', '71', 'k', 'i', '333', 'o', '469', '395', 'e']

Answer:
1, 2, 3, 4, 5, 6, 7, 9