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.

['l', 'g', 'o', 'x', '27', 'r', '123', '395', 'p', '27', '213', '455', 'y', '97']
1, 2, 3, 4, 5, 7, 9

['c', 'm', 'h', 'c', '69', '233', 'j', 'g', 'r', 'x', '59', 'p', '469']
2, 3, 4, 5, 6, 9

['475', '35', 'r', '445']

3, 4, 5, 7