In this task, you are given inputs 'i', 'j', and A, where 'i' and 'j' are integers and A is a list. A list is shown by two brackets and comma-separated numbers and characters inside, like ['1', '12', 'l']. You need to concatenate all elements of A from the ith element to the jth element, and then reverse the resulting 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 reverse first and then concatenate.

Input: Consider Input: 4, 4, ['Z', '7465', 'J', 'W']

Output: W


Input: Consider Input: 3, 7, ['u', '1307', 'F', '8027', 'r', '4559', 'F', 'm', '9805', '5063']

Output: F9554r7208F


Input: Consider Input: 4, 7, ['b', '8035', '1481', 'c', 'E', '5293', '2805', 'Y', 'Q', 'G', 'd', '2487', '2373', 'j', 'X', 'L', 'c', 'e', 'f', 'p', 'M', 'x', '3273', 'e', 'c']


Output: 50823925Ec