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.

Example Input: 16, 17, ['6657', '951', '3481', 'c', '939', '199', 'X', '8493', '7665', '1', 'D', '5363', '4345', 'c', 'P', 'U', 'I', 'M', '7591', 'd', '6765', '9235', '3061', 'K', '1657', 'o', 'u', 'a']
Example Output: IU

Example Input: 1, 12, ['H', '7185', 'R', 'N', '489', '6499', 'L', '8809', '7041', '9267', 'o', 'r', '1423', '6103']
Example Output: ro926770418809L6499489NR7185H

Example Input: 5, 6, ['2691', '9729', 'r', '4175', 'g', '5483']
Example Output:
5483g