Definition: 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.
Input: ['277', '435', '359', '417', '145', '175', 'c', '153', '289', '117', 'k']

1, 2, 3, 4, 5, 7, 8, 9