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: 6, 15, ['7417', 'a', '479', 'E', '1575', '6937', '4649', '9879', '9875', 'c', '1671', 'K', '3773', '6999', 'J', '9889', 'q', '4099', 'r', '1859', 'W']
Example Output: J69993773K1671c9875987946496937

Example Input: 16, 26, ['6975', 'z', '4385', 'K', '7559', 'N', '3341', '2471', 'q', 's', '5827', '7957', '1497', 'E', 'Q', '4407', '9275', 'J', 'W', 'G', '959', 's', '8381', '7705', 'Z', 'm', 'y']
Example Output: mZ77058381s959GWJ92754407

Example Input: 1, 2, ['3157', 'w']
Example Output:
w3157