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: 1, 3, ['u', 'D', '6391']
Example Output: 6391Du

Example Input: 4, 17, ['q', '6715', '451', '8195', 'i', '9071', 'z', 'R', '5', '1511', 'j', 'r', '5707', '6951', '9165', 'c', '5117']
Example Output: 5117c916569515707rj15115Rz9071i8195

Example Input: 21, 25, ['9761', '1943', '2875', 't', 'R', 'o', '5107', '9021', 'r', '1051', 'T', 'B', 'c', 'V', 'G', '2921', '4999', 'Q', '9713', 'b', 't', '681', 'K', '9109', 'i']
Example Output:
i9109K681t