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.

Ex Input:
1, 3, ['a', '8801', '2379']

Ex Output:
97321088a


Ex Input:
4, 4, ['675', 'e', 'A', 'H', 'O', 'E', 'g', 'j', 'j', '5167', '2367', 'u', 'E', '753', 'M']

Ex Output:
H


Ex Input:
5, 9, ['3809', 'Y', 'e', '1661', 'x', 'i', 'U', '7361', '5569', '3087', '2719', 'n', 'r', 't', 'V', '9501', 'C', 's']

Ex Output:

96551637Uix