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: ['3', '177', '139', '209', 'o', 'f', 'z', 'c', 't', 'i']

0, 1, 2, 3, 7, 9