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:
8, 10, ['A', 'C', '6441', '275', 'O', 'v', '5787', 'E', 'h', '6821', 'x', '2819', 'N', '3909']

Ex Output:
6821hE


Ex Input:
1, 5, ['9533', '9671', '6871', 'S', '4865']

Ex Output:
4865S687196719533


Ex Input:
13, 19, ['D', 'V', 'f', 'A', '4657', '9845', 'Q', '2481', 'T', '4573', 'y', '7933', 'Z', 'w', '4857', 'W', '9043', '2837', 'c']

Ex Output:

c28379043W4857wZ