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]: ['25', 'b', '455', 'n', '305', '271']
[A]: 0, 1, 2, 3, 4, 5, 7


[Q]: ['475', 'd', '467', 'h', 'r', 'r', '139', '307', '141', 'f']
[A]: 0, 1, 3, 4, 5, 6, 7, 9


[Q]: ['z', '467', 'r', 'c', 'i', '377', '37', '407', 'l']
[A]:
0, 3, 4, 6, 7