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, 23, ['h', 't', 'y', '8999', 'r', '919', 'd', '6983', '147', '4435', 'y', '9993', 'o', 'X', 'T', 'w', '5755', 'N', 'O', 't', '2855', 'g', 'U', '5077', '6985', '3811']

Ex Output:
Ug2855tON5755wTXo9993y44351476983d


Ex Input:
4, 5, ['5611', '2101', '3829', 'H', 's', '6545', 'X', 'T', 'q', 'p', 'O', 'C', 'U']

Ex Output:
sH


Ex Input:
3, 13, ['4553', '5383', '71', 'I', 'W', 'I', 'm', 'a', '7301', 'V', '355', 'm', '2187', 'r', '5247', 'p', 'e', 'X']

Ex Output:

2187m355V7301amIWI71