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: 3, 11, ['2249', '271', 'v', 'U', '9705', '1599', 'K', 's', '9439', '3239', 'E', 'q', 'a', '577', '7511', 'i', 'l', '4229', 'R', '6507', '3965', '6739']

E32399439sK15999705Uv