In this task, you are given inputs i, j, and A, where i and j are integers and A is a list. You need to find all elements of A from the ith element to the jth element, reverse the order in which they occur, and then concatenate them to output the resultant 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 concatenate the elements and then reverse the string.
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Question: 8, 16, ['O', 'e', '5857', '6759', '9787', 'e', 'j', '9173', 's', '4135', 'j', 'I', 'g', 'f', '2129', 'n', '3337']

Answer: n2129fgIj4135s9173


Question: 16, 17, ['6657', '951', '3481', 'c', '939', '199', 'X', '8493', '7665', '1', 'D', '5363', '4345', 'c', 'P', 'U', 'I', 'M', '7591', 'd', '6765', '9235', '3061', 'K', '1657', 'o', 'u', 'a']

Answer: IU


Question: 5, 7, ['4573', 'J', 't', 'F', 'Q', 'L', 'J', '7519', '6353', 'x', '7253', '3187', '401']

Answer:
JLQ