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: Consider Input: 1, 3, ['Y', 'k', 'P', '1517', 'z', '8727', 'U']

Output: PkY


Input: Consider Input: 2, 2, ['e', '4827']

Output: 4827


Input: Consider Input: 1, 2, ['1549', 'p', '8447', '481', '2227']


Output: p1549