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.

Input: Consider Input: 5, 7, ['I', 'R', 'p', '3901', '3837', '9227', '6961']

Output: 696192273837


Input: Consider Input: 17, 21, ['G', '6731', '5011', '5327', 'K', '1601', '7927', 'H', 'Q', '2519', '7897', 'G', 'x', '4253', 'g', 'o', 'D', 'A', '6515', 'o', '9255', 'V', '6725', 'l', '5771', '783']

Output: 9255o6515AD


Input: Consider Input: 19, 20, ['j', 'h', '2663', 'x', '3651', '6291', '6033', 'r', '3325', 'c', '5857', 'c', 'j', '5007', 'E', 'q', 'b', '3473', 'f', '4273']


Output: 4273f