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.

Q: ['455', '447', 'x', '479', 'b', '267', '339', '29', '267']

A: 2, 3, 4, 5, 6, 7, 9
****
Q: ['s', '391', 'z', '67', '371', '195', '77', '373', 'g', '249', 'm']

A: 1, 2, 3, 4, 5, 6, 7, 9
****
Q: ['h', '463', '63', 'n', '209', '347', '153', '347', '449']

A:
0, 1, 2, 3, 4, 5, 6, 7, 9
****