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: 1, 3, ['u', 'D', '6391']

Answer: 6391Du


Question: 6, 6, ['8655', 'L', 'F', 'l', '5817', '437', '8469']

Answer: 437


Question: 3, 6, ['t', 'E', '1999', 'w', 'T', 'T', '7509', '1605', '5847']

Answer:
TTw1999