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: ['477', 'a', 'n', 'r', '457', 'g', 'c']

A: 4, 5, 7
****
Q: ['233', '37', '221', 'n', 'j', 'y', '381', '175']

A: 1, 2, 3, 5, 7, 8
****
Q: ['469', '13', '333', '271', '223', '341', 'h', '317', '303']

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