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:
['43', '479', '317', 'w', '475', '255', '3', 'x']
answer:
1, 2, 3, 4, 5, 7, 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:
['p', 'a', '413', 'm', '351', 'h', 'g', '49', '173', '53', 'p', '213', '423']
answer:

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