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]: ['233', '339', '319']
[A]: 1, 2, 3, 9


[Q]: ['k', '107', '333', '317', 'm', 'w', 'g', 'f']
[A]: 0, 1, 3, 7


[Q]: ['167', '131']
[A]:
1, 3, 6, 7