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: ['497', '247', 'v', '327', '237', '257', '475', 's', '335', 'k']

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


Question: ['415', '365', '373', 't', 'n']

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


Question: ['83', 'h', 'm', '367', '45', '283', '259', 'q', '145']

Answer:
1, 2, 3, 4, 5, 6, 7, 8, 9