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]: 3, 4, ['2419', '643', '8177', '7291', '561', '6529', '4101', 'u', '6445']
[A]: 19277718


[Q]: 2, 2, ['a', 'J']
[A]: J


[Q]: 15, 26, ['p', 'W', 'q', 'e', 'I', '2405', '2149', 'k', 'I', 'm', '5481', 'Q', 'W', '9959', 'C', '3957', '821', 'e', 'w', 'k', 'y', 'V', '8681', '3829', 'K', 'x', 'h', 'Y', '6525']
[A]:
xK92831868Vykwe1287593C