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, 12, ['g', '9719', '9225', '2203', 'o', '155', 'R', '4889', 'i', '4765', 'D', '3459', '5075', 'O', '4077', 'H', '8197', '3725', '4917', 'd', 'X', 'G', '8447', 'K', '2459']

Ex Output:
3459D4765i4889R155


Ex Input:
11, 15, ['Y', 'L', 'I', 'u', 'z', '4077', 'K', '4679', 'l', '9269', '4071', '1789', 'b', '2139', 'b', '111', '6715', 'H', '3981']

Ex Output:
b2139b17894071


Ex Input:
14, 16, ['5601', 'E', 'd', 'J', 'g', 'a', 'G', '2485', 'h', 'o', 'F', '6003', '6189', 'G', '9575', 'n', '705', 'I', '3531', '2147', 'F', '89', 'i', 'P', '5207']

Ex Output:

n9575G