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.

['v', 'r', '67', '49']
4, 6, 7, 9

['381', 'l', 'z', '323', 'x', '247', '11']
1, 2, 3, 4, 7, 8

['373', '457', 'b', 'a', '277', 'u', 'c', 'h', 'h', '239', 'd', 't']

2, 3, 4, 5, 7, 9