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.
--------
Question: ['f', '291', '145', 'd', 'z', '355', 'r']

Answer: 1, 2, 3, 4, 5, 9


Question: ['w', 'p', 'r', 'v', 'd']

Answer: -1


Question: ['267', 'l']

Answer:
2, 6, 7


