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.

['353', '231', 'w', 't', 'j', 'r', 'm', '455', 'i', '281', '215']
1, 2, 3, 4, 5, 8

['475', 's', '123', '389', 'y', 'm', 'v', '47', 'u', '479', '357', '279', '137', 'l', 'i']
1, 2, 3, 4, 5, 7, 8, 9

['v', 'x', 'z', '399', 'u', 't', 'j', '467', '181', 'a', '489', 'u']

1, 3, 4, 6, 7, 8, 9