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:
['227', '161', '389', 'g', 'g', 'i', 'm', '199', '487', '65', '341', '377', 'x', 'r']
answer:
1, 2, 3, 4, 5, 6, 7, 8, 9


question:
['f', 'c', '381', '149', '67', '67', '197', 'i', '289', '491', 'c', 'b']
answer:
1, 2, 3, 4, 6, 7, 8, 9


question:
['85', 's', '141', '39', 'y']
answer:

1, 3, 4, 5, 8, 9