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:
8, 9, ['E', '4081', '2021', '2585', 'I', '6983', '3271', 'K', '4793', 'd', '2835', 'Q', 'T', 'f', '2133', 's', 'G', '93', 'B', 'n', 'b', 'v', 'N', 'B', '6625', 'v', 'd', '5407']

Ex Output:
3974K


Ex Input:
1, 2, ['735', 'W', '5879', '8259']

Ex Output:
W537


Ex Input:
8, 8, ['7357', '435', 'e', 's', 'l', '659', '199', '2339', '7775', '3741', 'X', 'o', 'j', 'o', 'B', '7887', '4221', '4963', '183', 'u', 'c']

Ex Output:

9332