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.

[EX Q]: ['z', 't', 'm', '295', '459', 'r', 'k', '149', '263', '5', '57', '455']
[EX A]: 1, 2, 3, 4, 5, 6, 7, 9

[EX Q]: ['359', '233', '455', '449', 'h']
[EX A]: 2, 3, 4, 5, 9

[EX Q]: ['y', 'y', '91', 'l', '443', '37', '59']
[EX A]:
1, 3, 4, 5, 7, 9