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:
['f', '253', '211', '85', 'm', 'y', 'l', 'r', 't', 'm', '193', 'p', '415', 'h', 'h']
answer:
1, 2, 3, 4, 5, 8, 9


question:
['v', 'n', '303', '355', 'n', '205', '393', '239', '239', 'm', '123', '487']
answer:
0, 1, 2, 3, 4, 5, 7, 8, 9


question:
['t', '125', '135']
answer:

1, 2, 3, 5