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: 5, 20, ['5377', 'j', 'j', '1767', '2103', '9547', 'I', 'M', '4067', '2571', 'V', 'Z', 'O', '3421', 'V', 'v', '4919', 'X', '307', 'M', '1603']

Answer: M307X4919vV3421OZV25714067MI95472103


Question: 10, 16, ['3169', '993', '6245', '3203', '9441', '47', '435', '3305', 'N', '1679', '9655', 'Q', 'j', '4409', 'X', '9031', 'e', 'J', '7379']

Answer: 9031X4409jQ96551679


Question: 12, 21, ['1761', 'O', '1371', 'p', 'q', 'f', 'n', 'W', 'X', 'w', 'X', 'u', 'p', 'D', 'c', '7293', '985', 'C', 'r', '1433', 'o', 'v']

Answer:
o1433rC9857293cDpu