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: ['5', '267', '323', '139', 'z', 'c', '73', 'c', '103']

0, 1, 2, 3, 5, 6, 7, 9