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: 15, 16, ['6377', '8403', 'm', 'M', 'p', 'L', '5181', 'Z', '2339', '9367', '6361', 'w', '6963', 's', 'Z', '865', 'c', '3233', 'j', '4027']

865Z