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:
19, 25, ['l', 'i', 'v', '2813', '4893', '3263', 'a', 'H', 'H', 'c', 'w', '91', 'X', '8227', '917', 'D', '4803', 'T', 'v', '9273', '9365', 'z', 't', 'b', '2077', '1641', 'J', '7745']

Ex Output:
2077btz93659273v


Ex Input:
2, 2, ['q', '7821', '8915', '3339', 'j', 'E', '9323', 'u', '5175']

Ex Output:
7821


Ex Input:
7, 7, ['8737', 'G', 't', '8331', '3035', '7969', 'J', 'z', '8863', '9133', '6199', 'Y', 'y', '7261', 'I', '4425', 'v', '9247', 'j', '19', 'n', 'X', 'O']

Ex Output:

J