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:
['n', '319', 's', '325', '177', '161', '43', 'g', 'o', '59', 'w', 'y', 'g', 'm']
answer:
1, 2, 3, 4, 5, 6, 7, 9


question:
['469', 'y', 'j', 'u', '475', 'k', 'k']
answer:
4, 5, 6, 7, 9


question:
['b', 'd', 'f']
answer:

-1