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:
3, 7, ['z', 'b', 'm', 'A', '4713', '3293', 'm', '7883']

Ex Output:
m32934713Am


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

Ex Output:
W6721ns


Ex Input:
5, 11, ['3717', 'y', 'o', '1987', 'g', '3641', '119', 'd', 'J', '9591', '1687', 'z', 't', '4295', 'R', '5453', '5019', '2121']

Ex Output:

16879591Jd1193641g