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, 3, ['l', 'D', '6731', 'g', '4587', '6771', '8663', '3813', 'l']

Ex Output:
6731D


Ex Input:
5, 6, ['O', '3491', '2665', '3429', 'u', 'C', 'R', 'B', '1111', 'b', 'T', 'Z', '6831', 'V', 'C', 'b', '4451', 'R', 'r']

Ex Output:
Cu


Ex Input:
2, 5, ['Y', 'd', '807', '4009', '7893', 'V', 'X']

Ex Output:

78934009807d