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: 4, 9, ['7691', '4539', '3381', 'b', 'g', '9615', '8187', '177', '2473', '8579', '9739', 'C', 'v', 'q', '2879', 'Z', '6817', '5247', '5477', 'Y', 'w', '3981']

Output: 247317781879615gb


Input: Consider Input: 1, 2, ['1437', 'u']

Output: u1437


Input: Consider Input: 4, 17, ['7997', '4849', 'n', 'a', 'd', 'e', 'h', '5961', '2803', '2423', 'E', 'D', 's', 'l', 't', 'O', '7793', 'x']


Output: 7793OtlsDE242328035961heda