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: 6, 13, ['E', 'L', '9349', '5897', 't', '5767', '6263', 'U', 'U', '3919', 'a', '3761', 'i', '6305', '643', 'y', 'A', '145', '1123']

i3761a3919UU62635767