Definition: 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: 8, 12, ['c', '5091', 'd', '1441', 'z', '7243', '9721', '7121', '519', 'X', 'N', '5489', 'M', '2585', 'G', '6309', 'c', 'W', 'B', 'U', 'B', '6289', '1589', '5077', '3289', 'J', '6793']

5489NX5197121