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, 27, ['X', '7539', 'U', 'G', '6477', '1675', '5647', 'Q', '3297', '4113', 'P', 'Y', '3889', '8987', 'C', '1801', '7955', 'J', 'q', 't', 'z', 'X', '2309', '4283', '725', 'z', '5997', 's', '7661', 'y']

5997z72542832309XztqJ79551801C89873889YP41133297Q56471675