instruction:
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.
question:
['t', '197', '129', 'u', 'l', 'y', '485', '57', '147', 'p', '137', 'v', '221']
answer:
1, 2, 3, 4, 5, 7, 8, 9


question:
['85', '53', '43', 'j', 'e', '443', '231', 'z', 'f', 'v', '235', '377']
answer:
1, 2, 3, 4, 5, 7, 8


question:
['z', 'm', '7', 'h', 'n', 'g', '353', 'f', '91', 'k']
answer:

1, 3, 5, 7, 9