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]: ['487', '355', 'm', 's', '367', 'n', '203', 'x', 't', 'v', 'd', '251']
[A]: 0, 1, 2, 3, 4, 5, 6, 7, 8


[Q]: ['v', 'w', 'k']
[A]: -1


[Q]: ['a', '159', 'y', '283', 'd', '331', 'e', 'j', '113', 'u', '313', '327', 'f']
[A]:
1, 2, 3, 5, 7, 8, 9