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: 3, 7, ['973', '4113', '517', '6021', '6051', 'H', '3763', 'S', '6425', 'G', '5913', 'U', '1421']

Output: 3763H60516021517


Input: Consider Input: 19, 20, ['x', '6239', 'D', 'l', 'Y', 'd', '6405', 'l', '2629', '4743', '8271', '3749', 'W', 'r', '9153', '2941', '6477', '2623', 'F', 'J']

Output: JF


Input: Consider Input: 2, 2, ['p', 'G']


Output: G