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.

['379', '485', '415', '37', '221', '125', '245', '87', 'a']
1, 2, 3, 4, 5, 7, 8, 9

['h', 'l', '43', 'b', 'g', '265', '355', 'y']
2, 3, 4, 5, 6

['121', '97', '107', 'g', '353', 'f', '129', '451', 'o', '147', '245', 'a', 'k']

0, 1, 2, 3, 4, 5, 7, 9