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:
6, 6, ['9431', '6731', 'A', '5153', 'K', '1567', 'D', 'Y', 'a', 'q', 'x']

Ex Output:
7651


Ex Input:
19, 26, ['4699', 'J', 'o', '7127', 'A', 'r', 't', '2571', 'Z', 'A', 'i', 'V', '2275', '3277', 'T', 'C', 'k', '975', '5591', '4205', '9873', '141', '9775', 'w', '111', '2585', '8751', '2173']

Ex Output:
5852111w5779141378950241955


Ex Input:
6, 9, ['O', 'e', '5473', '9095', '991', '5875', '3533', '181', '673', '5521', '2719', 'u', '5523', 's', '995', '5961', '1117', '7065']

Ex Output:

37618133535785