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: ['h', 't', '371', 'e', '153', 'b']

A: 1, 3, 5, 7
****
Q: ['353', '231', 'w', 't', 'j', 'r', 'm', '455', 'i', '281', '215']

A: 1, 2, 3, 4, 5, 8
****
Q: ['167', '365', 'z', 'v', '493', 'o', 'i', 'p', '313', 'u']

A:
1, 3, 4, 5, 6, 7, 9
****