Instructions: 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: ['321', '253', '279', '19', 'v', 'g', 'o', 'k', '75', 'h', '427']
Output:
1, 2, 3, 4, 5, 7, 9