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: ['j', 't']

Answer: -1


Question: ['167', '229', '439', '389', '483', '207']

Answer: 0, 1, 2, 3, 4, 6, 7, 8, 9


Question: ['405', 's', '429']

Answer:
0, 2, 4, 5, 9