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:
1, 3, ['b', 'd', '227', '3903', '1863', 'O', 'k', 'i']

Ex Output:
227db


Ex Input:
5, 8, ['6995', '7633', '1299', '9135', '5811', '4645', 'i', '4969', 'e', 'R', '7309']

Ex Output:
4969i46455811


Ex Input:
1, 9, ['539', 'O', 'D', '8301', 'g', '5505', '4723', '8601', '4509', '7607', 'v', 'P', 'h', '3191', 'k', 'x', 'A', '8855', 'N', '6651', '3677', '7969', '985', 'G', 'X']

Ex Output:

4509860147235505g8301DO539