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.

Ex Input:
3, 8, ['911', '2569', '2911', 'l', '4193', 'w', '6935', '5741', '7965', 'f', 'N', 'F', '5717']

Ex Output:
57416935w4193l2911


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

Ex Output:
J69993773K1671c9875987946496937


Ex Input:
5, 15, ['n', '3273', 't', '5569', 'Y', '717', 'K', 'Q', 's', 'm', '7127', '2083', 'm', '7121', '9619']

Ex Output:

96197121m20837127msQK717Y