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: ['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: ['f', 't', 'a', '163', '297', '97', '487', '341', '193']

A: 1, 2, 3, 4, 6, 7, 8, 9
****
Q: ['u', 'a', 'k', 'v']

A:
-1
****