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: ['e', '313', '259', 'i', 'h']

A: 1, 2, 3, 5, 9
****
Q: ['499', '493', 'i', '87']

A: 3, 4, 7, 8, 9
****
Q: ['473', '449', '357', 'p', 'p', 'e', '377', '77']

A:
3, 4, 5, 7, 9
****