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.

['437', '377']
3, 4, 7

['d', '335', '23', '461', '497', 'p', '313']
1, 2, 3, 4, 5, 6, 7, 9

['d', '295', '327']

2, 3, 5, 7, 9