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:
['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:
['l', 'z', '453', '361', 'p', 'c', 'n', '77', '113', '261', 'g']
answer:
1, 2, 3, 4, 5, 6, 7


question:
['389', '43', '53']
answer:

3, 4, 5, 8, 9