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, 8, ['O', '4833', '7055', '9891', '9117', '1571', 'S', 'Z', '7741', 'W', 't']

Output: ZS17517119198955073384


Input: Consider Input: 4, 7, ['1247', 's', 'J', 'w', 'X', '7211', 'c']

Output: c1127Xw


Input: Consider Input: 3, 4, ['I', '9779', 's', '9013', 'V', '103', '7781', 'p', '341', '7083', 'b']


Output: 3109s