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, 24, ['4399', '6949', '2331', '9663', '9883', '3623', '9947', '271', '8297', 'e', '169', 'T', '7719', '9179', '7571', 'B', 'q', '7563', '7391', '7073', 'g', '3219', 'n', 'r', '8411']

rn3219g