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.

['149', '129', 'k']
1, 2, 4, 9

['h', 'o', 's', '335', '317', '279', '217', '485']
1, 2, 3, 4, 5, 7, 8, 9

['109', '137']

0, 1, 3, 7, 9