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: 2, 8, ['4363', 'N', 'J', 'Z', '4447', 'P', '6839', 'Q', '85', 'W', 't', 'C', 'X', '3879', 'X', 'Q']

Answer: Q6839P4447ZJN


Question: 9, 10, ['3359', 'Q', 'J', '8995', '8963', 'k', '7331', 'C', '4361', 'z', 'O', 'f', 'g', 'Y', 'Y', '3685', '5475']

Answer: z4361


Question: 21, 29, ['1673', 'G', 'r', 'V', 'M', 'K', '2041', '8283', 'B', 'j', '55', '2487', 'D', '2355', '3909', '6623', 'S', '8105', 'd', '8857', 'M', 'G', 'Q', 'd', 'u', '2339', 't', 'h', 'y', '8563']

Answer:
yht2339udQGM