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.

[Q]: 4, 4, ['8393', '8873', '6317', 'N', '2549']
[A]: N


[Q]: 5, 5, ['r', 'n', 'J', 'U', '3587', 'J', 'A', '9729', '2919', '1417', '2605', '2663', '9427', '4449', '8545', '8673', '3417', '5671', 'e', 'W', '6963', '6713', 'c', '5071', '2823']
[A]: 7853


[Q]: 11, 19, ['V', '3941', '1041', 'H', '5911', 'y', 'B', '2089', '2237', '1711', 'd', 'v', 's', 'g', 'k', 'l', '2351', '2157', '1045', '1031', '7129', 'z', 'G', 'O', '3595', 'L', 'd']
[A]:
540175121532lkgsvd