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, 4, ['a', '9257', 'K', '3909', '1655']
Example Output: 3909K9257a

Example Input: 6, 13, ['I', 'Z', '3859', 'M', '5135', 'X', 'h', '1215', 'z', '4385', 'Q', 'H', 'f']
Example Output: fHQ4385z1215hX

Example Input: 7, 12, ['I', 'r', '6947', '4975', 'h', 'f', '8095', 'u', 'Z', 'h', '7579', 'J', '6309', 't', '8229', 'v', '2777', '6551', 'k', '3871']
Example Output:
J7579hZu8095