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]: ['215', '391', '251', '177']
[A]: 1, 2, 3, 5, 7, 9


[Q]: ['a', 'w', '277', '457', 'r', 'u', 'e', '491', '453', 'q', '59', '233', 'z', 'h']
[A]:
1, 2, 3, 4, 5, 7, 9