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:
['87', '139', 'y', '129', '255', '227', '103', 'j']
answer:
0, 1, 2, 3, 5, 7, 8, 9


question:
['353', 'y', 'a', 'g', '141', '97', '457', '297', '25', 'g', '131', 'u', '303', '39', 'p']
answer:
0, 1, 2, 3, 4, 5, 7, 9


question:
['35', '311', 'y', '357', 'b', '97', 'm', 'f', 'c', '141', '193', 'e', '201', '319']
answer:

0, 1, 2, 3, 4, 5, 7, 9