You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
In this task, you are given inputs i, j, and A, where i and j are integers and A is a list. You need to find all elements of A from the ith element to the jth element, reverse the order in which they occur, and then concatenate them to output the resultant 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 concatenate the elements and then reverse the string.

1, 3, ['238', 'h', '92', 'U', '2799']
Solution: 92h238
Why? Here, concatenating all the elements between the 1st element and 3rd element in reverse order gives '92h238'.

New input: 5, 10, ['7709', '8251', 'r', 'Z', 'K', '5163', '2609', '9729', '8439', '7209', 'i', '9147', 'Q', '4443', 'x', 'e', '3417', '8517', 'Q', '5583']
Solution:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
72098439972926095163K