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: 11, 15, ['Y', 'L', 'I', 'u', 'z', '4077', 'K', '4679', 'l', '9269', '4071', '1789', 'b', '2139', 'b', '111', '6715', 'H', '3981']

Answer: b2139b17894071


Question: 2, 13, ['4737', '7213', 'O', 'E', 'L', 'f', '1347', 'x', '4083', 'd', 'p', '4259', 't', 'v']

Answer: t4259pd4083x1347fLEO7213


Question: 6, 8, ['L', 'V', 'z', '2759', 'T', '1867', 'S', '479', 'D', 'B']

Answer:
479S1867