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: ['p', '103', 'd', '411', 'f']

A: 0, 1, 3, 4
****
Q: ['r', '171', 'p', '299', 'u', 'n', '421', '331', 'h', '21', 'h', 'x', '435', '327', '373']

A: 1, 2, 3, 4, 5, 7, 9
****
Q: ['387', '17', 'o', 'f', 'c', '11', '219', 'z', '481', 'b', '385', 'f', 'e']

A:
1, 2, 3, 4, 5, 7, 8, 9
****
