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: 1, 5, ['K', '2905', '8797', 'v', '6945', '1189', 'J', '9079', '2465', 'l', 'C', '1707', '721', '8915', '9609', 'D', 'c', '7487', 'h', 'F', 'l', '6877']

6945v87972905K