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:
2, 5, ['5633', 'w', '1423', 'Y', 'G', 'P', 'O']

Ex Output:
GY1423w


Ex Input:
5, 11, ['w', 'r', 'K', '8297', 'v', '953', '2291', '5267', 'u', 'x', 'I']

Ex Output:
Ixu52672291953v


Ex Input:
4, 7, ['4437', 'i', 'K', '277', '1885', '1797', '7189', 'y', '4499', 'u']

Ex Output:

718917971885277