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: 2, 5, ['5645', 'F', 'C', 'D', '4795', 'v', 'Q', '3931', 'R', 'C', '5969', '8041', '4391', '3745', '3027', 'w', '4689', 'K']

4795DCF