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, 6, ['8655', 'L', 'F', 'l', '5817', '437', '8469']

Ex Output:
437


Ex Input:
1, 4, ['6145', 'D', '2827', 'y']

Ex Output:
y2827D6145


Ex Input:
6, 9, ['G', '133', '7871', '3813', '7717', '3973', 'z', 'i', 'v', '5581', '1889', '4883', 'N', 'j']

Ex Output:

viz3973