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

Output: u1437


Input: Consider Input: 1, 3, ['121', 'D', 'T', 'D', 'e']

Output: TD121


Input: Consider Input: 1, 4, ['4579', 'N', 'M', 'b']


Output: bMN4579