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.

Input: Consider Input: 3, 4, ['3979', 'L', 'x', '2961', '5933', 'q', 'y', '6509', '3047', '3919', '2015', '6887', 'u', 'F', '8617', '3793', 's', 'x', '2453', '5763', '2399', '6635', '8039', 'R', '5495', '2175', '8067']

Output: 2961x


Input: Consider Input: 5, 5, ['M', 'N', 'S', '1125', 'B']

Output: B


Input: Consider Input: 3, 10, ['n', 'G', 'R', '1391', '5639', 'J', 'n', 't', 'z', '6023', 'l', 'E', 'Z', 'E', '9459']


Output: 6023ztnJ56391391R