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:
7, 9, ['c', '5457', '1035', 'G', '8985', '3477', 'd', '7679', '6753', '6463', 'U', 't', 'F', '5305', '7807']

Ex Output:
67537679d


Ex Input:
2, 5, ['e', '7607', '3201', '3421', 'H', '543', '3489']

Ex Output:
H342132017607


Ex Input:
5, 6, ['V', '8077', 'k', 'F', '4051', '9505', 'P', '9455']

Ex Output:

95054051