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

['235', '17', 'g', '125', '455', 'h', 'u', 'u', 'y', '219', '129', 'q', 'u', 'r']
1, 2, 3, 4, 5, 7, 9

['c', 'd', '93', '41', 's', 'e', '431']

1, 3, 4, 9

