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


[Q]: ['g', '411', '307', 'i', '483', 'z', '29', 't', 'f', 'z']
[A]: 0, 1, 2, 3, 4, 7, 8, 9


[Q]: ['d', 'w', '247']
[A]:
2, 4, 7