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: 12, 13, ['I', 'y', 'w', 'a', 'Q', 'f', '2619', 'q', 'e', '8477', 'm', 'C', '203', 'C', '7237', 'h', 'C', 'M']
Example Output: 203C

Example Input: 6, 10, ['5063', 'c', 'm', 'z', '5519', 'a', '9133', 'b', 'l', 'E', 'B', '2475', '2603', '3245']
Example Output: Elb9133a

Example Input: 3, 8, ['2323', '5813', 'M', '2157', '45', '5559', '5779', '5763']
Example Output:
576357795559452157M