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:
6, 11, ['9601', 'W', '3527', 'a', 'N', '5933', '8537', 's', 'E', 'l', '4879', '203', 'w']

Ex Output:
4879lEs85375933


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

Ex Output:
H49111017349757973287663982453453d


Ex Input:
5, 18, ['2845', 'X', '7617', 'C', 'o', 'b', '1313', 'a', '23', 'A', 'X', '299', 'F', '1723', 'i', 'v', 'J', '25', '4229', 'c', 'Z', 'O', 'a', '5619', '3625', 'U', '2117', 'W']

Ex Output:

25Jvi1723F299XA23a1313bo