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, 4, ['3979', 'L', 'x', '2961', '5933', 'q', 'y', '6509', '3047', '3919', '2015', '6887', 'u', 'F', '8617', '3793', 's', 'x', '2453', '5763', '2399', '6635', '8039', 'R', '5495', '2175', '8067']
Example Output: 2961x

Example Input: 5, 7, ['I', 'R', 'p', '3901', '3837', '9227', '6961']
Example Output: 696192273837

Example Input: 5, 9, ['S', 'L', 'v', '2909', '1773', '1511', 'o', '7095', 'o', '2649', 'J']
Example Output:
o7095o15111773