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: ['v', 't', '81', '223', 'b', 'b', '313', '151', '63']

A: 1, 2, 3, 5, 6, 8
****
Q: ['n', 'f', '355', 'e', '113', '131', '443', '275', '249', '487']

A: 1, 2, 3, 4, 5, 7, 8, 9
****
Q: ['y', '273', 'c']

A:
2, 3, 7
****