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.

[EX Q]: ['f', 'f', '149', '311', '331', 'l', 'u', '349', 'v', 'v', '417', '285']
[EX A]: 1, 2, 3, 4, 5, 7, 8, 9

[EX Q]: ['p', '103', 'd', '411', 'f']
[EX A]: 0, 1, 3, 4

[EX Q]: ['x', '339', 'a', 'h', '377', '283', '303']
[EX A]:
0, 2, 3, 7, 8, 9