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.
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Question: ['k', '409', '333', '283', 'm', '489', '377', '439', '443', 'r', '101', 'n', '35']

Answer: 0, 1, 2, 3, 4, 5, 7, 8, 9


Question: ['u', '465', '129', 'o']

Answer: 1, 2, 4, 5, 6, 9


Question: ['141', 'z', 'w', '153', '323', 'x', 'z', 'a', '453', 'i', '83', '441', '301', 'i', '295']

Answer:
0, 1, 2, 3, 4, 5, 8, 9