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: 21, 26, ['Y', 'o', '395', 'l', 'j', 'N', '4483', '7403', '569', 'x', 'j', '7317', 't', '2883', 'j', 'Y', '3613', '7745', '6245', '9479', '6275', '4197', '4705', 'R', 'Y', '9757', '795']

9757YR470541976275