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:
['141', 'm', '139', '197', '321', '265', 'p']
answer:
1, 2, 3, 4, 5, 6, 7, 9


question:
['h', '475', 'x', '53', '461', 'c']
answer:
1, 3, 4, 5, 6, 7


question:
['x', '205', 'p', 'l', 'p', 'f']
answer:

0, 2, 5