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: 12, 18, ['W', '9509', '3541', 'T', 't', 'Y', 'x', '9667', 'V', '7605', '7727', 'x', 'x', 'W', '3657', '2591', '9599', 'I', 'd', '6679', '1373', 'e', '6173', '8861', 'n', 'L', '5093', 's', '453']

Answer: I959925913657Wxx


Question: 17, 27, ['k', 'p', 's', '3925', '4913', 'u', '983', '6355', '7185', 'k', 'N', '6665', 't', '6471', 'i', '139', '3221', '9603', '5031', 'P', '4677', 'o', 'x', 'Y', 'E', 'f', 'G']

Answer: GfEYxo4677P503196033221


Question: 7, 15, ['g', '3347', '89', 'A', '9417', '345', '5487', '1351', '4955', '8909', '5757', 'q', '8963', 'u', 'x', 't', 'a', 't', 'v', 'w', '8023', '7359', 'X', '5013', 'K', '4175', '9599', '7743', '8137', 'W']

Answer:
xu8963q57578909495513515487