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]: ['u', 'c', 'f', 'z', '51', '301', 'q', '275']
[A]: 0, 1, 2, 3, 5, 7


[Q]: ['h', '475', 'x', '53', '461', 'c']
[A]: 1, 3, 4, 5, 6, 7


[Q]: ['u', '103', '421', 'c', '163', 'x', 'g', 'x', '47', '25']
[A]:
0, 1, 2, 3, 4, 5, 6, 7