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.

['x', '325', 'i', 'n', 'i', 'w', 't']
2, 3, 5

['v', '105', 'p', 'w', '295', '239', '453']
0, 1, 2, 3, 4, 5, 9

['t', '85', 'h', 'o', 'h', 'j', 'u', '379', '489', '193', 'w', '283', 'c']

1, 2, 3, 4, 5, 7, 8, 9