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: ['p', 't', '211', 'r', '439', 'h', 'g', 'c', '299', '371']

A: 1, 2, 3, 4, 7, 9
****
Q: ['243', 't', '249', 'q', '459', '469', '301', 'j', '215', '21']

A: 0, 1, 2, 3, 4, 5, 6, 9
****
Q: ['113', '137', 'y', '439', '461', '177', 'y', '469', '111', '51', '393', 'c', '491', 'm']

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