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, ['D', '373', '8515', 'G', 'G', 'c']

Ex Output:
8515373


Ex Input:
2, 11, ['d', 'd', '3453', '8245', '6639', '3287', '5797', '3497', '1017', '4911', 'H', 'c', '5347', 'W']

Ex Output:
H49111017349757973287663982453453d


Ex Input:
13, 26, ['o', 'R', 'A', '3469', 'W', '2277', '7697', '1619', 't', 'W', '8823', 'M', 'k', 'h', 'r', '3863', 'k', 'G', 'P', '6263', '379', '3751', 'r', 'b', 'k', '2939', 'B', '8721', 'D', 'K']

Ex Output:

2939kbr37513796263PGk3863rhk