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, 5, ['B', 'H', 'y', 'y', 'K']

Output: Ky


Input: Consider Input: 5, 12, ['t', '4541', 'z', 'K', 'b', 'E', '3395', 'z', '4511', 'F', '7085', '3753', 'n', 'W', 'J']


Output: 35735807F1154z5933Eb