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: 25, 26, ['1029', 't', 'H', '47', 'f', '1269', '4723', '9575', '6769', 'u', '6641', 'I', 'H', 'A', '2729', 'l', 'b', '9215', '8167', '221', '3519', 'P', 'm', 'G', '8053', '6319', 'M', '2549', 'i']
Example Output: 63198053

Example Input: 2, 23, ['969', '8859', 'f', '141', '9239', '1059', 'H', '9905', '581', '3861', '3239', 'G', 'd', 'Q', '355', '6291', 'A', '7281', 'c', '5047', 'u', 'V', 'q']
Example Output:
qVu5047c7281A6291355QdG323938615819905H10599239141f8859