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]: ['t', '103', '349', '203', 'b', 'z', 'i', '337', 'y', '137', '77', 'p', 'k']
[A]: 0, 1, 2, 3, 4, 7, 9


[Q]: ['l', 'm', 'h', '87', '265', 'e', '415', '325', 'p', 'b', '385']
[A]: 1, 2, 3, 4, 5, 6, 7, 8


[Q]: ['197', 'b', '433']
[A]:
1, 3, 4, 7, 9