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:
5, 5, ['M', 'N', 'S', '1125', 'B']

Ex Output:
B


Ex Input:
8, 16, ['G', '615', 'N', '8597', 'f', '1837', 'R', '6489', '6643', '7951', 'p', 'q', 'z', '2831', '1655', 'C', 'K', 'H', '2117', '5135', 'U', 'y', 'e', 'i', 'r', 'j', '4779', '5225']

Ex Output:
C16552831zqp795166436489


Ex Input:
3, 15, ['O', 'X', 'Y', '8437', 'O', 'P', '5727', 'S', 'S', 'X', 'p', 'X', 'v', 'C', 'P', 'C', '9615', '2595', '4587', '6235', '557', '2491', 'p', '7927', 'f', '4643', '1519']

Ex Output:

PCvXpXSS5727PO8437Y