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: ['d', '351', '357', 'q', 'b', '19', 'r', '231', '381', 'x', 'a', 'y', '263']

SOLUTION: 1, 2, 3, 5, 6, 7, 8, 9

PROBLEM: ['233', '339', '319']

SOLUTION: 1, 2, 3, 9

PROBLEM: ['b', 'b', '125', 'm', '217']

SOLUTION:
1, 2, 5, 7