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:
10, 20, ['9695', 'I', '5457', 'M', 'V', '7993', 'B', 'b', 'u', 'H', '7805', '3431', '6839', '3687', '8261', 'U', 'a', 'W', '9437', 'q', 'l']

Ex Output:
q9437WaU82613687683934317805H


Ex Input:
22, 25, ['o', 'h', 'P', 'I', 'T', '4169', '7957', 'G', 'y', 'h', 'F', 'M', 'r', 'B', 'G', 'D', 'f', '7699', 'G', '3533', 'b', '5635', 'N', '275', 'P', 'z']

Ex Output:
P275N5635


Ex Input:
19, 20, ['8101', '9073', '3039', 'R', '5241', '8669', '2589', '2841', '2595', 'Y', '5465', 'N', 'u', 'X', 'U', 'Y', '4411', '9217', 'O', '6865', 'q', '2625', '5297', 's']

Ex Output:

6865O