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: ['f', '253', '211', '85', 'm', 'y', 'l', 'r', 't', 'm', '193', 'p', '415', 'h', 'h']

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


Question: ['t', 'p', 'u', 'a']

Answer: -1


Question: ['203', '293', '311', '123', '137', 'j']

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