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]: ['k', '373', 'b', '305', 'i', 'n', 'z', 'm', 'c']
[A]: 0, 3, 5, 7


[Q]: ['o', '61', '475', '457', 'a', 'o', 'z', '227', '415', 'z', 'x', 'y', '73', '205', 'y']
[A]: 0, 1, 2, 3, 4, 5, 6, 7


[Q]: ['c', 'm', 'o', '153', 't', '199', '177', '9', 'p', '57', 'n', '237', '267', 'b']
[A]:
1, 2, 3, 5, 6, 7, 9