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: 5, 9, ['u', '1879', 'y', '4419', 'c', 'y', 'U', 'B', 'u', '6661', '7997', '165', '5487', '9527', '9873', '3325', '4759', 'C', '1589', '3025', '2133', '3389', 'y', '421', 's']

uBUyc