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: ['b', '329', 'm', 'q', 'k', 'z', 'k', '199', 'v', 'l']

SOLUTION: 1, 2, 3, 9

PROBLEM: ['105', 'u', '465', 'b', '59', 'd', 'w', 'r', '233', 'v', '197', '189', '329']

SOLUTION: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9

PROBLEM: ['11', '245', '313', '205', '479', '245', 'm', '89', 'b', 'k', 'l', '111', 'n']

SOLUTION:
0, 1, 2, 3, 4, 5, 7, 8, 9