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: ['v', '477', 'j', '339', '245', 'r', '417', 'g', '475', 'n', 'q', '171']

A: 1, 2, 3, 4, 5, 7, 9
****
Q: ['381', '357', 'w', 'r', '115', 'z', '389', 'p', 'p', '101', '229']

A: 0, 1, 2, 3, 5, 7, 8, 9
****
Q: ['45', '429', '445', '115', 'x', 't', 's', '431', 'e', '423', '15', 'h', 'n']

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