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:
1, 4, ['s', 'n', '6721', 'W', 'H']

Ex Output:
W6721ns


Ex Input:
8, 8, ['q', 'L', '1899', 'N', 'A', '3513', 'E', '9175', '7765', 'A', 'T', '6981', 'g', '7555', 'e', 'y', '2225', 'M', '5669', 'b', 'c', '6729', 'Q', 'm']

Ex Output:
9175


Ex Input:
6, 9, ['3147', 'p', 'y', '9401', 'u', '5857', 'R', '3259', '1927', '5077', 'n', 'Z', 'p', 'm', '9665', '5383', 'Y', 'X', 't', '9629', 'I', '2585']

Ex Output:

19273259R5857