In this task, you are given inputs 'i', 'j', and A, where 'i' and 'j' are integers and A is a list. A list is shown by two brackets and comma-separated numbers and characters inside, like ['1', '12', 'l']. You need to concatenate all elements of A from the ith element to the jth element, and then reverse the resulting string. 'i' and 'j' will be non-negative, and will always have a value less than the length of A. 'i' will always be less than 'j'. Perform the operations in order, i.e., do not reverse first and then concatenate.
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Question: 1, 9, ['g', '3007', '4827', '6665', '711', '6997', '137', 'X', '7383', 'q', 'v', 'K', '267', '3691', 'G', '7925', '8327', 'l']

Answer: 3837X7317996117566672847003g


Question: 4, 8, ['d', 'p', '3443', '9557', 'd', '8317', '2721', 'U', '2719', '249', 'c', 'O', 'v', '3961', '2569', '359']

Answer: U12727138d7559


Question: 11, 18, ['4669', '8725', 'M', '7643', 'q', 'r', 'T', 'W', '1263', 'd', 'o', 'U', '8687', '4311', 'a', '3699', 'q', 'p', '6915', 'y', 'c', '4913', 'D', 'r', '3199', '3127', 'C', '2513', 'M', '1363']

Answer:
pq9963a11347868Uo