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.

Input: Consider Input: 2, 3, ['p', 'A', 'Y', '1837', '7973', '1599']

Output: YA


Input: Consider Input: 18, 22, ['2445', 'L', 'x', 'i', '9929', '3105', 'v', '445', 'O', '353', 'j', '9877', 'D', 'U', '885', '9485', 'V', '8219', '2963', '685', '1659', 'U']

Output: U165968529638219


Input: Consider Input: 19, 22, ['S', '481', 'f', '7649', '5243', '2191', '3955', 'F', '5805', '9719', '379', 'g', 'L', '1893', '3857', 'c', '4117', '6339', '3779', '8695', '59', '4437', '2089', 'q', 'G']


Output: 44375986953779