TASK 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.
PROBLEM: ['f', 't', 'a', '163', '297', '97', '487', '341', '193']

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

PROBLEM: ['87', '139', 'y', '129', '255', '227', '103', 'j']

SOLUTION: 0, 1, 2, 3, 5, 7, 8, 9

PROBLEM: ['h', 'q', '287', 'p']

SOLUTION:
2, 7, 8