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: 13, 17, ['851', 'k', 'U', '4737', '9171', 'K', 'A', 'y', 'A', '2093', 'u', '5985', 'u', '5849', 'r', '9843', 'v', '6503', '7741', 'W', 't']

v9843r5849u