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: ['437', '377']

A: 3, 4, 7
****
Q: ['403', 'j', 'x', '187', '311', 'g', 'z', 'p', '287', 'w', 'k', 'm']

A: 0, 1, 2, 3, 4, 7, 8
****
Q: ['i', '401', '255', 'p', '321', '217', 'd', '413', '431', '363', 'm', 'y', '471', '133', '367']

A:
0, 1, 2, 3, 4, 5, 6, 7
****