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.

Q: ['p', 'n', 'c', '113', '105', '423', 'k', 'a', '211', 'k', '91', '389']

A: 0, 1, 2, 3, 4, 5, 8, 9
****
Q: ['c', '471', 'l', 'z', '23', 'c', '43', 'o', '175', 'w', 'c', 'p', '431']

A: 1, 2, 3, 4, 5, 7
****
Q: ['153', 'f', '147', '255', '65']

A:
1, 2, 3, 4, 5, 6, 7
****