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]: ['377', 'z', '421', '137', 't', 'v', 's', 'l']
[EX A]: 1, 2, 3, 4, 7

[EX Q]: ['433', '133', '255', 'h', '59', 'm', '315', '149', 't', 'y', 'n', '59', '493', '295']
[EX A]: 1, 2, 3, 4, 5, 9

[EX Q]: ['479', '163', 'e']
[EX A]:
1, 3, 4, 6, 7, 9