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:
4, 5, ['O', '6353', 'n', '3645', 'R', 'd']

Ex Output:
R3645


Ex Input:
5, 6, ['9707', '3873', '6063', '8877', 'l', '9711', 's', 'M']

Ex Output:
9711l


Ex Input:
3, 16, ['213', 'X', '3715', 'p', '5689', '6653', 'R', '2191', 't', '3595', 'P', 'G', 'S', '7019', 'P', '8725', 'e', 'j', '7479', 'X', 'Q', '1785', 's', '9183', 'Y', 'C', 'P']

Ex Output:

8725P7019SGP3595t2191R66535689p3715