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: ['y', '449', 'g', '345', '167', 'q', 'k']

Answer: 1, 3, 4, 5, 6, 7, 9


Question: ['l', '283', '171', 'q', '465', 'u', '325', 'd', 'j', '349', '351', '229', 'z']

Answer: 1, 2, 3, 4, 5, 6, 7, 8, 9


Question: ['357', 'b', '163', '179', '207', 'o', 'h']

Answer:
0, 1, 2, 3, 5, 6, 7, 9