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, 13, ['3307', 'M', '4437', 'W', 'g', '9509', '6161', 'b', '4671', '9165', '641', '5619', 'B', 'f', 'L', 'W', 'E', 'J', '6903', '9963', '3693']

B561964191654671b61619509g