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: 4, 17, ['4033', 'v', 'r', 'a', '5991', 'x', 'e', '1541', 'n', '7951', '2079', '1331', 'L', '1383', '141', '3941', '7727', 'w', '3049', '8669', 'z']

772739411411383L133120797951n1541ex5991a