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]: ['o', 'e', '187', '153', 'a', '253', 'f']
[EX A]: 1, 2, 3, 5, 7, 8

[EX Q]: ['p', '231', 'd', 'i', '33', '431']
[EX A]: 1, 2, 3, 4

[EX Q]: ['137', 'w', 'h']
[EX A]:
1, 3, 7