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: ['y', 'd', '217', '267', 'p', 'y', '419', '261', 't', '483', 'u', '33']

1, 2, 3, 4, 6, 7, 8, 9