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: 2, 7, ['e', 's', '7009', 'z', 'I', '8649', '6405', '551', 'C', '5325', 'V', 'i', 'w', 'K', 'w', 'R']

Output: 50469468Iz9007s


Input: Consider Input: 6, 7, ['8123', 'G', '4941', 'Z', 'i', 'T', '3335']

Output: 5333T


Input: Consider Input: 5, 11, ['j', '325', 'C', 'm', '5893', 'P', '4915', '3073', '4517', '6077', 'x', 'W', 't', '2753', '6139', '6897', '5409']


Output: x7706715437035194P3985