instruction:
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:
['s', '95', 'j', '173', '437', '143', 'n', '357', 'w', '239', '219']
answer:
1, 2, 3, 4, 5, 7, 9


question:
['311', '147', 'a', '149', 'h']
answer:
1, 3, 4, 7, 9


question:
['173', '199', '323', 'm', 'j', 'f', '289', '419', 't', 'a']
answer:

1, 2, 3, 4, 7, 8, 9