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: ['j', 'd', '445', 'g', '263', '217', '357', 'c', '57', 'x']

SOLUTION: 1, 2, 3, 4, 5, 6, 7

PROBLEM: ['u', 'r']

SOLUTION: -1

PROBLEM: ['u', '191', '459', 'k', '195', 'e', 'm']

SOLUTION:
1, 4, 5, 9