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: 3, 3, ['6041', '1503', 'z', '6947', 'W', '3563', '6477', 'h', '8977', 'e', 'z', '5605', '3595', '9327', 'M', 'l', 'j', 'P', 'D', 'h', 'S', 'Q', 'o', '2539', 'a', 'J', 'd', 'k']

Output: z


Input: Consider Input: 19, 20, ['w', '4131', 'C', '719', '2961', 'Q', '4167', '1001', 'p', '965', '1153', '6881', '3361', 'H', 'f', 'V', '9393', 'x', '6091', 'B', '6757', 'U', '2619', '5649', '6447', 'D']

Output: B1906


Input: Consider Input: 2, 3, ['M', '7911', 't']


Output: t1197