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: ['61', '255', 'u', '219', '197', 'i', '453', 'i', '267', '217', 'o', 'g']

1, 2, 3, 4, 5, 6, 7, 9