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: 3, 15, ['2345', 'c', 'B', '2961', '189', '2409', '3715', '6803', '3947', 'u', '7099', 'w', 'f', 'M', 'Q', '7533', 'm']
Example Output: QMfw7099u39476803371524091892961B

Example Input: 1, 2, ['1437', 'u']
Example Output: u1437

Example Input: 14, 17, ['o', 'X', 'X', '8325', '325', '9565', '1675', '4399', 'L', 'Z', '3437', '2331', '1187', '7271', '7397', 'B', 'o', 'o', 'M', '9717', 'U', '5161']
Example Output:
oB73977271