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, 6, ['j', 'z', '1571', 'D', 'U', '7981', '3519', '1631', '493', '2165', '9475', 'g', '4633', '1983', '6865', 'D', 'X', '1967', 'b', '1891', 'b', 'x', 'G', '113', '3255', 'a', '4343', 'w']

7981U