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, 2, ['1437', 'u']

Answer: u1437


Question: 6, 15, ['7969', 'z', '7061', 'J', 'T', '7917', '7225', '7907', '8333', 'U', 'w', 'Y', '4729', '2461', 'X', 'k']

Answer: X24614729YwU8333790772257917


Question: 5, 18, ['4601', 't', '8049', 'E', '8955', '9917', '2659', '533', 'I', 'm', '2911', '9549', 'S', 'R', 'E', '5993', 'S', 's', 'm', 's', '4683', '1375', 'F', 'Y', '2527', '5497', '1513', 'K']

Answer:
sS5993ERS95492911mI533265999178955