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.

Ex Input:
6, 7, ['R', '4581', 'r', '8391', 'D', '4973', '8835', 'Q', 'Y', '2441']

Ex Output:
88354973


Ex Input:
2, 14, ['621', 'C', 'Y', '7681', '9283', '8389', 'T', 'V', 'u', 'y', '3235', 'w', '3393', '7343', 'j', '1139', 'I', 'Z', '6575', 'g', 'U', 'M', '6373', 'J', 'r']

Ex Output:
73433393w3235yuVT838992837681YC


Ex Input:
11, 19, ['L', '7487', 'V', '3299', '8943', '4357', '9507', 'J', 'O', 'K', 'm', 'u', 'h', 'j', '4211', '8421', 'w', '9427', 'Y', 'F', '643', 'V']

Ex Output:

Y9427w84214211jhum