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: ['x', '445', 'i', 'f', 'n', '67', 'z', '139', 'y', 'x']

1, 3, 4, 5, 6, 7, 9