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: ['f', 'u', 'd', '51', 'w', '449', 'z', '313', '153', 'z', '319']

A: 1, 3, 4, 5, 9
****
Q: ['z', 't', 'm', '295', '459', 'r', 'k', '149', '263', '5', '57', '455']

A: 1, 2, 3, 4, 5, 6, 7, 9
****
Q: ['l', '491', '465', 'w', '81']

A:
1, 4, 5, 6, 8, 9
****