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


question:
['u', '465', '129', 'o']
answer:
1, 2, 4, 5, 6, 9


question:
['z', '413', 'o', 'p', '183', '123', '327', '407', 'z', '139', '111', '447']
answer:

0, 1, 2, 3, 4, 7, 8, 9