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]: 2, 4, ['i', '2555', 'G', '4549', 'a', '7443', '5361']
[A]: 9454G5552


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


[Q]: 14, 17, ['3959', '3387', 'D', '291', '361', 'H', 'R', 'r', '5111', '4391', 'F', '155', '5457', '7857', 'q', '4875', '2605', '1107', 'S', '7707', 'H', 'r', 'G', 'F', 'E', 'y', '9355', 'o', '7745']
[A]:
50625784q7587