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:
['479', '205', 'e', 'c', '57', 'm', 'i', '33', 'f', '45', 'z']
answer:
0, 2, 3, 4, 5, 7, 9


question:
['167', '229', '439', '389', '483', '207']
answer:
0, 1, 2, 3, 4, 6, 7, 8, 9


question:
['65', 'm', '345', 'a', '455', '101', 'l', 'c', 't', 'i', '265', '203']
answer:

0, 1, 2, 3, 4, 5, 6