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:
['c', '435', 'c', 'q', 'u', '191', 'b', 'l', '217']
answer:
1, 2, 3, 4, 5, 7, 9


question:
['f', 't', 'a', '163', '297', '97', '487', '341', '193']
answer:
1, 2, 3, 4, 6, 7, 8, 9


question:
['119', '69', 'i', 'k', '77', 'z', '95', '59', 't', 'i', 'u']
answer:

1, 5, 6, 7, 9