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: 6, 15, ['7417', 'a', '479', 'E', '1575', '6937', '4649', '9879', '9875', 'c', '1671', 'K', '3773', '6999', 'J', '9889', 'q', '4099', 'r', '1859', 'W']

Answer: J69993773K1671c9875987946496937


Question: 4, 4, ['8943', '8643', 'z', 'P', 'q', 'v', '2799', 'm', '8201', 'e', 'j', 'r']

Answer: P


Question: 24, 29, ['7487', 'J', 't', 'T', '7079', 'w', '1687', '2113', '2449', '8897', '9433', 'h', 'X', 'o', 'V', '7721', '8301', '7109', 'j', '7753', 'H', 'p', '7407', '5337', '9227', '8561', 'B', '1679', 'R']

Answer:
R1679B856192275337