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:
['243', 't', '249', 'q', '459', '469', '301', 'j', '215', '21']
answer:
0, 1, 2, 3, 4, 5, 6, 9


question:
['285', 'h', '231', 'l', 'd', 'k', '309', '345', 'k', 'p', '351', '93', 'b', 'w']
answer:
0, 1, 2, 3, 4, 5, 8, 9


question:
['e', '485', '429', 'r', '379', 'b', '207', '389', '455', '21', '1']
answer:

0, 1, 2, 3, 4, 5, 7, 8, 9